refactor: Use ESM (#8358)

* wip

* wip

* fix

* clean up

* Update tsconfig.json

* Update activitypub.ts

* wip

371 files changed, 2315 insertions, 1741 deletions

diff --git a/packages/backend/src/server/activitypub.ts b/packages/backend/src/server/activitypub.ts
index bbbc231b8c..45eec3d26c 100644
--- a/packages/backend/src/server/activitypub.ts
+++ b/packages/backend/src/server/activitypub.ts
@@ -1,23 +1,23 @@
-import * as Router from '@koa/router';
-import * as json from 'koa-json-body';
+import Router from '@koa/router';
+import json from 'koa-json-body';
 import * as httpSignature from 'http-signature';
 
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderNote from '@/remote/activitypub/renderer/note';
-import renderKey from '@/remote/activitypub/renderer/key';
-import { renderPerson } from '@/remote/activitypub/renderer/person';
-import renderEmoji from '@/remote/activitypub/renderer/emoji';
-import Outbox, { packActivity } from './activitypub/outbox';
-import Followers from './activitypub/followers';
-import Following from './activitypub/following';
-import Featured from './activitypub/featured';
-import { inbox as processInbox } from '@/queue/index';
-import { isSelfHost } from '@/misc/convert-host';
-import { Notes, Users, Emojis, NoteReactions } from '@/models/index';
-import { ILocalUser, User } from '@/models/entities/user';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderNote from '@/remote/activitypub/renderer/note.js';
+import renderKey from '@/remote/activitypub/renderer/key.js';
+import { renderPerson } from '@/remote/activitypub/renderer/person.js';
+import renderEmoji from '@/remote/activitypub/renderer/emoji.js';
+import Outbox, { packActivity } from './activitypub/outbox.js';
+import Followers from './activitypub/followers.js';
+import Following from './activitypub/following.js';
+import Featured from './activitypub/featured.js';
+import { inbox as processInbox } from '@/queue/index.js';
+import { isSelfHost } from '@/misc/convert-host.js';
+import { Notes, Users, Emojis, NoteReactions } from '@/models/index.js';
+import { ILocalUser, User } from '@/models/entities/user.js';
 import { In } from 'typeorm';
-import { renderLike } from '@/remote/activitypub/renderer/like';
-import { getUserKeypair } from '@/misc/keypair-store';
+import { renderLike } from '@/remote/activitypub/renderer/like.js';
+import { getUserKeypair } from '@/misc/keypair-store.js';
 
 // Init router
 const router = new Router();
diff --git a/packages/backend/src/server/activitypub/featured.ts b/packages/backend/src/server/activitypub/featured.ts
index ed5bfc4267..129881a718 100644
--- a/packages/backend/src/server/activitypub/featured.ts
+++ b/packages/backend/src/server/activitypub/featured.ts
@@ -1,10 +1,10 @@
-import * as Router from '@koa/router';
-import config from '@/config/index';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection';
-import { setResponseType } from '../activitypub';
-import renderNote from '@/remote/activitypub/renderer/note';
-import { Users, Notes, UserNotePinings } from '@/models/index';
+import Router from '@koa/router';
+import config from '@/config/index.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection.js';
+import { setResponseType } from '../activitypub.js';
+import renderNote from '@/remote/activitypub/renderer/note.js';
+import { Users, Notes, UserNotePinings } from '@/models/index.js';
 
 export default async (ctx: Router.RouterContext) => {
 	const userId = ctx.params.user;
diff --git a/packages/backend/src/server/activitypub/followers.ts b/packages/backend/src/server/activitypub/followers.ts
index 927fb5d18a..644ecaf8c8 100644
--- a/packages/backend/src/server/activitypub/followers.ts
+++ b/packages/backend/src/server/activitypub/followers.ts
@@ -1,14 +1,14 @@
-import * as Router from '@koa/router';
-import config from '@/config/index';
+import Router from '@koa/router';
+import config from '@/config/index.js';
 import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
-import * as url from '@/prelude/url';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection';
-import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page';
-import renderFollowUser from '@/remote/activitypub/renderer/follow-user';
-import { setResponseType } from '../activitypub';
-import { Users, Followings, UserProfiles } from '@/models/index';
+import { ID } from '@/misc/cafy-id.js';
+import * as url from '@/prelude/url.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection.js';
+import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page.js';
+import renderFollowUser from '@/remote/activitypub/renderer/follow-user.js';
+import { setResponseType } from '../activitypub.js';
+import { Users, Followings, UserProfiles } from '@/models/index.js';
 import { LessThan } from 'typeorm';
 
 export default async (ctx: Router.RouterContext) => {
diff --git a/packages/backend/src/server/activitypub/following.ts b/packages/backend/src/server/activitypub/following.ts
index a3237582ad..b1f3f9ac7f 100644
--- a/packages/backend/src/server/activitypub/following.ts
+++ b/packages/backend/src/server/activitypub/following.ts
@@ -1,16 +1,16 @@
-import * as Router from '@koa/router';
-import config from '@/config/index';
+import Router from '@koa/router';
+import config from '@/config/index.js';
 import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
-import * as url from '@/prelude/url';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection';
-import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page';
-import renderFollowUser from '@/remote/activitypub/renderer/follow-user';
-import { setResponseType } from '../activitypub';
-import { Users, Followings, UserProfiles } from '@/models/index';
+import { ID } from '@/misc/cafy-id.js';
+import * as url from '@/prelude/url.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection.js';
+import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page.js';
+import renderFollowUser from '@/remote/activitypub/renderer/follow-user.js';
+import { setResponseType } from '../activitypub.js';
+import { Users, Followings, UserProfiles } from '@/models/index.js';
 import { LessThan, FindConditions } from 'typeorm';
-import { Following } from '@/models/entities/following';
+import { Following } from '@/models/entities/following.js';
 
 export default async (ctx: Router.RouterContext) => {
 	const userId = ctx.params.user;
diff --git a/packages/backend/src/server/activitypub/outbox.ts b/packages/backend/src/server/activitypub/outbox.ts
index ba6b46a0cc..525ac81b97 100644
--- a/packages/backend/src/server/activitypub/outbox.ts
+++ b/packages/backend/src/server/activitypub/outbox.ts
@@ -1,20 +1,20 @@
-import * as Router from '@koa/router';
-import config from '@/config/index';
+import Router from '@koa/router';
+import config from '@/config/index.js';
 import $ from 'cafy';
-import { ID } from '@/misc/cafy-id';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection';
-import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page';
-import { setResponseType } from '../activitypub';
-import renderNote from '@/remote/activitypub/renderer/note';
-import renderCreate from '@/remote/activitypub/renderer/create';
-import renderAnnounce from '@/remote/activitypub/renderer/announce';
-import { countIf } from '@/prelude/array';
-import * as url from '@/prelude/url';
-import { Users, Notes } from '@/models/index';
-import { makePaginationQuery } from '../api/common/make-pagination-query';
+import { ID } from '@/misc/cafy-id.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-collection.js';
+import renderOrderedCollectionPage from '@/remote/activitypub/renderer/ordered-collection-page.js';
+import { setResponseType } from '../activitypub.js';
+import renderNote from '@/remote/activitypub/renderer/note.js';
+import renderCreate from '@/remote/activitypub/renderer/create.js';
+import renderAnnounce from '@/remote/activitypub/renderer/announce.js';
+import { countIf } from '@/prelude/array.js';
+import * as url from '@/prelude/url.js';
+import { Users, Notes } from '@/models/index.js';
+import { makePaginationQuery } from '../api/common/make-pagination-query.js';
 import { Brackets } from 'typeorm';
-import { Note } from '@/models/entities/note';
+import { Note } from '@/models/entities/note.js';
 
 export default async (ctx: Router.RouterContext) => {
 	const userId = ctx.params.user;
diff --git a/packages/backend/src/server/api/2fa.ts b/packages/backend/src/server/api/2fa.ts
index 2a69e49c83..e1c226979a 100644
--- a/packages/backend/src/server/api/2fa.ts
+++ b/packages/backend/src/server/api/2fa.ts
@@ -1,5 +1,5 @@
-import * as crypto from 'crypto';
-import config from '@/config/index';
+import * as crypto from 'node:crypto';
+import config from '@/config/index.js';
 import * as jsrsasign from 'jsrsasign';
 
 const ECC_PRELUDE = Buffer.from([0x04]);
diff --git a/packages/backend/src/server/api/api-handler.ts b/packages/backend/src/server/api/api-handler.ts
index cd7b9615bc..f97c3dd397 100644
--- a/packages/backend/src/server/api/api-handler.ts
+++ b/packages/backend/src/server/api/api-handler.ts
@@ -1,9 +1,9 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 
-import { IEndpoint } from './endpoints';
-import authenticate, { AuthenticationError } from './authenticate';
-import call from './call';
-import { ApiError } from './error';
+import { IEndpoint } from './endpoints.js';
+import authenticate, { AuthenticationError } from './authenticate.js';
+import call from './call.js';
+import { ApiError } from './error.js';
 
 export default (endpoint: IEndpoint, ctx: Koa.Context) => new Promise<void>((res) => {
 	const body = ctx.request.body;
diff --git a/packages/backend/src/server/api/authenticate.ts b/packages/backend/src/server/api/authenticate.ts
index 9e2f3eb743..7fdf14666e 100644
--- a/packages/backend/src/server/api/authenticate.ts
+++ b/packages/backend/src/server/api/authenticate.ts
@@ -1,7 +1,7 @@
-import isNativeToken from './common/is-native-token';
-import { User } from '@/models/entities/user';
-import { Users, AccessTokens, Apps } from '@/models/index';
-import { AccessToken } from '@/models/entities/access-token';
+import isNativeToken from './common/is-native-token.js';
+import { User } from '@/models/entities/user.js';
+import { Users, AccessTokens, Apps } from '@/models/index.js';
+import { AccessToken } from '@/models/entities/access-token.js';
 
 export class AuthenticationError extends Error {
 	constructor(message: string) {
diff --git a/packages/backend/src/server/api/call.ts b/packages/backend/src/server/api/call.ts
index e767b15417..5c5ef66019 100644
--- a/packages/backend/src/server/api/call.ts
+++ b/packages/backend/src/server/api/call.ts
@@ -1,11 +1,11 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 import { performance } from 'perf_hooks';
-import { limiter } from './limiter';
-import { User } from '@/models/entities/user';
-import endpoints, { IEndpoint } from './endpoints';
-import { ApiError } from './error';
-import { apiLogger } from './logger';
-import { AccessToken } from '@/models/entities/access-token';
+import { limiter } from './limiter.js';
+import { User } from '@/models/entities/user.js';
+import endpoints, { IEndpoint } from './endpoints.js';
+import { ApiError } from './error.js';
+import { apiLogger } from './logger.js';
+import { AccessToken } from '@/models/entities/access-token.js';
 
 const accessDenied = {
 	message: 'Access denied.',
diff --git a/packages/backend/src/server/api/common/generate-block-query.ts b/packages/backend/src/server/api/common/generate-block-query.ts
index 4fd6184738..60db1e731b 100644
--- a/packages/backend/src/server/api/common/generate-block-query.ts
+++ b/packages/backend/src/server/api/common/generate-block-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { Blockings } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { Blockings } from '@/models/index.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 // ここでいうBlockedは被Blockedの意
diff --git a/packages/backend/src/server/api/common/generate-channel-query.ts b/packages/backend/src/server/api/common/generate-channel-query.ts
index 80a0acf7f9..333bb73b86 100644
--- a/packages/backend/src/server/api/common/generate-channel-query.ts
+++ b/packages/backend/src/server/api/common/generate-channel-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { ChannelFollowings } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { ChannelFollowings } from '@/models/index.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 export function generateChannelQuery(q: SelectQueryBuilder<any>, me?: { id: User['id'] } | null) {
diff --git a/packages/backend/src/server/api/common/generate-muted-instance-query.ts b/packages/backend/src/server/api/common/generate-muted-instance-query.ts
index dbc9fc98f1..72a6fec68f 100644
--- a/packages/backend/src/server/api/common/generate-muted-instance-query.ts
+++ b/packages/backend/src/server/api/common/generate-muted-instance-query.ts
@@ -1,6 +1,6 @@
-import { User } from '@/models/entities/user';
-import { id } from '@/models/id';
-import { UserProfiles } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { id } from '@/models/id.js';
+import { UserProfiles } from '@/models/index.js';
 import { SelectQueryBuilder, Brackets } from 'typeorm';
 
 function createMutesQuery(id: string) {
diff --git a/packages/backend/src/server/api/common/generate-muted-note-query.ts b/packages/backend/src/server/api/common/generate-muted-note-query.ts
index 0737842613..f544e334d3 100644
--- a/packages/backend/src/server/api/common/generate-muted-note-query.ts
+++ b/packages/backend/src/server/api/common/generate-muted-note-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { MutedNotes } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { MutedNotes } from '@/models/index.js';
 import { SelectQueryBuilder } from 'typeorm';
 
 export function generateMutedNoteQuery(q: SelectQueryBuilder<any>, me: { id: User['id'] }) {
diff --git a/packages/backend/src/server/api/common/generate-muted-note-thread-query.ts b/packages/backend/src/server/api/common/generate-muted-note-thread-query.ts
index 7e2cbd498b..7263ea2e60 100644
--- a/packages/backend/src/server/api/common/generate-muted-note-thread-query.ts
+++ b/packages/backend/src/server/api/common/generate-muted-note-thread-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { NoteThreadMutings } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { NoteThreadMutings } from '@/models/index.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 export function generateMutedNoteThreadQuery(q: SelectQueryBuilder<any>, me: { id: User['id'] }) {
diff --git a/packages/backend/src/server/api/common/generate-muted-user-query.ts b/packages/backend/src/server/api/common/generate-muted-user-query.ts
index 7e200b87ef..79cb3ff894 100644
--- a/packages/backend/src/server/api/common/generate-muted-user-query.ts
+++ b/packages/backend/src/server/api/common/generate-muted-user-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { Mutings } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { Mutings } from '@/models/index.js';
 import { SelectQueryBuilder, Brackets } from 'typeorm';
 
 export function generateMutedUserQuery(q: SelectQueryBuilder<any>, me: { id: User['id'] }, exclude?: User) {
diff --git a/packages/backend/src/server/api/common/generate-native-user-token.ts b/packages/backend/src/server/api/common/generate-native-user-token.ts
index 1f791c57ce..5d8a4c5378 100644
--- a/packages/backend/src/server/api/common/generate-native-user-token.ts
+++ b/packages/backend/src/server/api/common/generate-native-user-token.ts
@@ -1,3 +1,3 @@
-import { secureRndstr } from '@/misc/secure-rndstr';
+import { secureRndstr } from '@/misc/secure-rndstr.js';
 
 export default () => secureRndstr(16, true);
diff --git a/packages/backend/src/server/api/common/generate-replies-query.ts b/packages/backend/src/server/api/common/generate-replies-query.ts
index fac425b761..301782eab9 100644
--- a/packages/backend/src/server/api/common/generate-replies-query.ts
+++ b/packages/backend/src/server/api/common/generate-replies-query.ts
@@ -1,4 +1,4 @@
-import { User } from '@/models/entities/user';
+import { User } from '@/models/entities/user.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 export function generateRepliesQuery(q: SelectQueryBuilder<any>, me?: Pick<User, 'id' | 'showTimelineReplies'> | null) {
diff --git a/packages/backend/src/server/api/common/generate-visibility-query.ts b/packages/backend/src/server/api/common/generate-visibility-query.ts
index 813e8b6c09..715982934c 100644
--- a/packages/backend/src/server/api/common/generate-visibility-query.ts
+++ b/packages/backend/src/server/api/common/generate-visibility-query.ts
@@ -1,5 +1,5 @@
-import { User } from '@/models/entities/user';
-import { Followings } from '@/models/index';
+import { User } from '@/models/entities/user.js';
+import { Followings } from '@/models/index.js';
 import { Brackets, SelectQueryBuilder } from 'typeorm';
 
 export function generateVisibilityQuery(q: SelectQueryBuilder<any>, me?: { id: User['id'] } | null) {
diff --git a/packages/backend/src/server/api/common/getters.ts b/packages/backend/src/server/api/common/getters.ts
index 4b2ee8f1da..c5a47876d0 100644
--- a/packages/backend/src/server/api/common/getters.ts
+++ b/packages/backend/src/server/api/common/getters.ts
@@ -1,7 +1,7 @@
-import { IdentifiableError } from '@/misc/identifiable-error';
-import { User } from '@/models/entities/user';
-import { Note } from '@/models/entities/note';
-import { Notes, Users } from '@/models/index';
+import { IdentifiableError } from '@/misc/identifiable-error.js';
+import { User } from '@/models/entities/user.js';
+import { Note } from '@/models/entities/note.js';
+import { Notes, Users } from '@/models/index.js';
 
 /**
  * Get note for API processing
diff --git a/packages/backend/src/server/api/common/inject-featured.ts b/packages/backend/src/server/api/common/inject-featured.ts
index 1dc13c83ef..b7dd8028b5 100644
--- a/packages/backend/src/server/api/common/inject-featured.ts
+++ b/packages/backend/src/server/api/common/inject-featured.ts
@@ -1,9 +1,9 @@
 import rndstr from 'rndstr';
-import { Note } from '@/models/entities/note';
-import { User } from '@/models/entities/user';
-import { Notes, UserProfiles, NoteReactions } from '@/models/index';
-import { generateMutedUserQuery } from './generate-muted-user-query';
-import { generateBlockedUserQuery } from './generate-block-query';
+import { Note } from '@/models/entities/note.js';
+import { User } from '@/models/entities/user.js';
+import { Notes, UserProfiles, NoteReactions } from '@/models/index.js';
+import { generateMutedUserQuery } from './generate-muted-user-query.js';
+import { generateBlockedUserQuery } from './generate-block-query.js';
 
 // TODO: リアクション、Renote、返信などをしたノートは除外する
 
diff --git a/packages/backend/src/server/api/common/inject-promo.ts b/packages/backend/src/server/api/common/inject-promo.ts
index 06a3841995..b467b7b70b 100644
--- a/packages/backend/src/server/api/common/inject-promo.ts
+++ b/packages/backend/src/server/api/common/inject-promo.ts
@@ -1,7 +1,7 @@
 import rndstr from 'rndstr';
-import { Note } from '@/models/entities/note';
-import { User } from '@/models/entities/user';
-import { PromoReads, PromoNotes, Notes, Users } from '@/models/index';
+import { Note } from '@/models/entities/note.js';
+import { User } from '@/models/entities/user.js';
+import { PromoReads, PromoNotes, Notes, Users } from '@/models/index.js';
 
 export async function injectPromo(timeline: Note[], user?: User | null) {
 	if (timeline.length < 5) return;
diff --git a/packages/backend/src/server/api/common/read-messaging-message.ts b/packages/backend/src/server/api/common/read-messaging-message.ts
index 928333e59c..b0ce54d370 100644
--- a/packages/backend/src/server/api/common/read-messaging-message.ts
+++ b/packages/backend/src/server/api/common/read-messaging-message.ts
@@ -1,17 +1,17 @@
-import { publishMainStream, publishGroupMessagingStream } from '@/services/stream';
-import { publishMessagingStream } from '@/services/stream';
-import { publishMessagingIndexStream } from '@/services/stream';
-import { User, IRemoteUser } from '@/models/entities/user';
-import { MessagingMessage } from '@/models/entities/messaging-message';
-import { MessagingMessages, UserGroupJoinings, Users } from '@/models/index';
+import { publishMainStream, publishGroupMessagingStream } from '@/services/stream.js';
+import { publishMessagingStream } from '@/services/stream.js';
+import { publishMessagingIndexStream } from '@/services/stream.js';
+import { User, IRemoteUser } from '@/models/entities/user.js';
+import { MessagingMessage } from '@/models/entities/messaging-message.js';
+import { MessagingMessages, UserGroupJoinings, Users } from '@/models/index.js';
 import { In } from 'typeorm';
-import { IdentifiableError } from '@/misc/identifiable-error';
-import { UserGroup } from '@/models/entities/user-group';
-import { toArray } from '@/prelude/array';
-import { renderReadActivity } from '@/remote/activitypub/renderer/read';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import { deliver } from '@/queue/index';
-import orderedCollection from '@/remote/activitypub/renderer/ordered-collection';
+import { IdentifiableError } from '@/misc/identifiable-error.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { toArray } from '@/prelude/array.js';
+import { renderReadActivity } from '@/remote/activitypub/renderer/read.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import { deliver } from '@/queue/index.js';
+import orderedCollection from '@/remote/activitypub/renderer/ordered-collection.js';
 
 /**
  * Mark messages as read
diff --git a/packages/backend/src/server/api/common/read-notification.ts b/packages/backend/src/server/api/common/read-notification.ts
index 049a7feed6..1f575042a0 100644
--- a/packages/backend/src/server/api/common/read-notification.ts
+++ b/packages/backend/src/server/api/common/read-notification.ts
@@ -1,7 +1,7 @@
-import { publishMainStream } from '@/services/stream';
-import { User } from '@/models/entities/user';
-import { Notification } from '@/models/entities/notification';
-import { Notifications, Users } from '@/models/index';
+import { publishMainStream } from '@/services/stream.js';
+import { User } from '@/models/entities/user.js';
+import { Notification } from '@/models/entities/notification.js';
+import { Notifications, Users } from '@/models/index.js';
 import { In } from 'typeorm';
 
 export async function readNotification(
diff --git a/packages/backend/src/server/api/common/signin.ts b/packages/backend/src/server/api/common/signin.ts
index df986fc457..163f132a44 100644
--- a/packages/backend/src/server/api/common/signin.ts
+++ b/packages/backend/src/server/api/common/signin.ts
@@ -1,10 +1,10 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 
-import config from '@/config/index';
-import { ILocalUser } from '@/models/entities/user';
-import { Signins } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { publishMainStream } from '@/services/stream';
+import config from '@/config/index.js';
+import { ILocalUser } from '@/models/entities/user.js';
+import { Signins } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { publishMainStream } from '@/services/stream.js';
 
 export default function(ctx: Koa.Context, user: ILocalUser, redirect = false) {
 	if (redirect) {
diff --git a/packages/backend/src/server/api/common/signup.ts b/packages/backend/src/server/api/common/signup.ts
index 786c94cf59..7689e8233f 100644
--- a/packages/backend/src/server/api/common/signup.ts
+++ b/packages/backend/src/server/api/common/signup.ts
@@ -1,15 +1,15 @@
-import * as bcrypt from 'bcryptjs';
-import { generateKeyPair } from 'crypto';
-import generateUserToken from './generate-native-user-token';
-import { User } from '@/models/entities/user';
-import { Users, UsedUsernames } from '@/models/index';
-import { UserProfile } from '@/models/entities/user-profile';
+import bcrypt from 'bcryptjs';
+import { generateKeyPair } from 'node:crypto';
+import generateUserToken from './generate-native-user-token.js';
+import { User } from '@/models/entities/user.js';
+import { Users, UsedUsernames } from '@/models/index.js';
+import { UserProfile } from '@/models/entities/user-profile.js';
 import { getConnection } from 'typeorm';
-import { genId } from '@/misc/gen-id';
-import { toPunyNullable } from '@/misc/convert-host';
-import { UserKeypair } from '@/models/entities/user-keypair';
-import { usersChart } from '@/services/chart/index';
-import { UsedUsername } from '@/models/entities/used-username';
+import { genId } from '@/misc/gen-id.js';
+import { toPunyNullable } from '@/misc/convert-host.js';
+import { UserKeypair } from '@/models/entities/user-keypair.js';
+import { usersChart } from '@/services/chart/index.js';
+import { UsedUsername } from '@/models/entities/used-username.js';
 
 export async function signup(opts: {
 	username: User['username'];
diff --git a/packages/backend/src/server/api/define.ts b/packages/backend/src/server/api/define.ts
index 83fc1e8d4f..9094fcffc6 100644
--- a/packages/backend/src/server/api/define.ts
+++ b/packages/backend/src/server/api/define.ts
@@ -1,10 +1,10 @@
-import * as fs from 'fs';
+import * as fs from 'node:fs';
 import Ajv from 'ajv';
-import { ILocalUser } from '@/models/entities/user';
-import { IEndpointMeta } from './endpoints';
-import { ApiError } from './error';
-import { Schema, SchemaType } from '@/misc/schema';
-import { AccessToken } from '@/models/entities/access-token';
+import { ILocalUser } from '@/models/entities/user.js';
+import { IEndpointMeta } from './endpoints.js';
+import { ApiError } from './error.js';
+import { Schema, SchemaType } from '@/misc/schema.js';
+import { AccessToken } from '@/models/entities/access-token.js';
 
 type SimpleUserInfo = {
 	id: ILocalUser['id'];
diff --git a/packages/backend/src/server/api/endpoints.ts b/packages/backend/src/server/api/endpoints.ts
index 32dbdeb315..6b4eff0780 100644
--- a/packages/backend/src/server/api/endpoints.ts
+++ b/packages/backend/src/server/api/endpoints.ts
@@ -1,11 +1,612 @@
-import { dirname } from 'path';
-import * as path from 'path';
-import * as glob from 'glob';
-import { Schema } from '@/misc/schema';
+import { Schema } from '@/misc/schema.js';
 
-//const _filename = fileURLToPath(import.meta.url);
-const _filename = __filename;
-const _dirname = dirname(_filename);
+import * as ep___admin_abuseUserReports from './endpoints/admin/abuse-user-reports.js';
+import * as ep___admin_accounts_create from './endpoints/admin/accounts/create.js';
+import * as ep___admin_accounts_delete from './endpoints/admin/accounts/delete.js';
+import * as ep___admin_ad_create from './endpoints/admin/ad/create.js';
+import * as ep___admin_ad_delete from './endpoints/admin/ad/delete.js';
+import * as ep___admin_ad_list from './endpoints/admin/ad/list.js';
+import * as ep___admin_ad_update from './endpoints/admin/ad/update.js';
+import * as ep___admin_announcements_create from './endpoints/admin/announcements/create.js';
+import * as ep___admin_announcements_delete from './endpoints/admin/announcements/delete.js';
+import * as ep___admin_announcements_list from './endpoints/admin/announcements/list.js';
+import * as ep___admin_announcements_update from './endpoints/admin/announcements/update.js';
+import * as ep___admin_deleteAllFilesOfAUser from './endpoints/admin/delete-all-files-of-a-user.js';
+import * as ep___admin_drive_cleanRemoteFiles from './endpoints/admin/drive/clean-remote-files.js';
+import * as ep___admin_drive_cleanup from './endpoints/admin/drive/cleanup.js';
+import * as ep___admin_drive_files from './endpoints/admin/drive/files.js';
+import * as ep___admin_drive_showFile from './endpoints/admin/drive/show-file.js';
+import * as ep___admin_emoji_addAliasesBulk from './endpoints/admin/emoji/add-aliases-bulk.js';
+import * as ep___admin_emoji_add from './endpoints/admin/emoji/add.js';
+import * as ep___admin_emoji_copy from './endpoints/admin/emoji/copy.js';
+import * as ep___admin_emoji_deleteBulk from './endpoints/admin/emoji/delete-bulk.js';
+import * as ep___admin_emoji_delete from './endpoints/admin/emoji/delete.js';
+import * as ep___admin_emoji_importZip from './endpoints/admin/emoji/import-zip.js';
+import * as ep___admin_emoji_listRemote from './endpoints/admin/emoji/list-remote.js';
+import * as ep___admin_emoji_list from './endpoints/admin/emoji/list.js';
+import * as ep___admin_emoji_removeAliasesBulk from './endpoints/admin/emoji/remove-aliases-bulk.js';
+import * as ep___admin_emoji_setAliasesBulk from './endpoints/admin/emoji/set-aliases-bulk.js';
+import * as ep___admin_emoji_setCategoryBulk from './endpoints/admin/emoji/set-category-bulk.js';
+import * as ep___admin_emoji_update from './endpoints/admin/emoji/update.js';
+import * as ep___admin_federation_deleteAllFiles from './endpoints/admin/federation/delete-all-files.js';
+import * as ep___admin_federation_refreshRemoteInstanceMetadata from './endpoints/admin/federation/refresh-remote-instance-metadata.js';
+import * as ep___admin_federation_removeAllFollowing from './endpoints/admin/federation/remove-all-following.js';
+import * as ep___admin_federation_updateInstance from './endpoints/admin/federation/update-instance.js';
+import * as ep___admin_getIndexStats from './endpoints/admin/get-index-stats.js';
+import * as ep___admin_getTableStats from './endpoints/admin/get-table-stats.js';
+import * as ep___admin_invite from './endpoints/admin/invite.js';
+import * as ep___admin_moderators_add from './endpoints/admin/moderators/add.js';
+import * as ep___admin_moderators_remove from './endpoints/admin/moderators/remove.js';
+import * as ep___admin_promo_create from './endpoints/admin/promo/create.js';
+import * as ep___admin_queue_clear from './endpoints/admin/queue/clear.js';
+import * as ep___admin_queue_deliverDelayed from './endpoints/admin/queue/deliver-delayed.js';
+import * as ep___admin_queue_inboxDelayed from './endpoints/admin/queue/inbox-delayed.js';
+import * as ep___admin_queue_stats from './endpoints/admin/queue/stats.js';
+import * as ep___admin_relays_add from './endpoints/admin/relays/add.js';
+import * as ep___admin_relays_list from './endpoints/admin/relays/list.js';
+import * as ep___admin_relays_remove from './endpoints/admin/relays/remove.js';
+import * as ep___admin_resetPassword from './endpoints/admin/reset-password.js';
+import * as ep___admin_resolveAbuseUserReport from './endpoints/admin/resolve-abuse-user-report.js';
+import * as ep___admin_sendEmail from './endpoints/admin/send-email.js';
+import * as ep___admin_serverInfo from './endpoints/admin/server-info.js';
+import * as ep___admin_showModerationLogs from './endpoints/admin/show-moderation-logs.js';
+import * as ep___admin_showUser from './endpoints/admin/show-user.js';
+import * as ep___admin_showUsers from './endpoints/admin/show-users.js';
+import * as ep___admin_silenceUser from './endpoints/admin/silence-user.js';
+import * as ep___admin_suspendUser from './endpoints/admin/suspend-user.js';
+import * as ep___admin_unsilenceUser from './endpoints/admin/unsilence-user.js';
+import * as ep___admin_unsuspendUser from './endpoints/admin/unsuspend-user.js';
+import * as ep___admin_updateMeta from './endpoints/admin/update-meta.js';
+import * as ep___admin_vacuum from './endpoints/admin/vacuum.js';
+import * as ep___announcements from './endpoints/announcements.js';
+import * as ep___antennas_create from './endpoints/antennas/create.js';
+import * as ep___antennas_delete from './endpoints/antennas/delete.js';
+import * as ep___antennas_list from './endpoints/antennas/list.js';
+import * as ep___antennas_notes from './endpoints/antennas/notes.js';
+import * as ep___antennas_show from './endpoints/antennas/show.js';
+import * as ep___antennas_update from './endpoints/antennas/update.js';
+import * as ep___ap_get from './endpoints/ap/get.js';
+import * as ep___ap_show from './endpoints/ap/show.js';
+import * as ep___app_create from './endpoints/app/create.js';
+import * as ep___app_show from './endpoints/app/show.js';
+import * as ep___auth_accept from './endpoints/auth/accept.js';
+import * as ep___auth_session_generate from './endpoints/auth/session/generate.js';
+import * as ep___auth_session_show from './endpoints/auth/session/show.js';
+import * as ep___auth_session_userkey from './endpoints/auth/session/userkey.js';
+import * as ep___blocking_create from './endpoints/blocking/create.js';
+import * as ep___blocking_delete from './endpoints/blocking/delete.js';
+import * as ep___blocking_list from './endpoints/blocking/list.js';
+import * as ep___channels_create from './endpoints/channels/create.js';
+import * as ep___channels_featured from './endpoints/channels/featured.js';
+import * as ep___channels_follow from './endpoints/channels/follow.js';
+import * as ep___channels_followed from './endpoints/channels/followed.js';
+import * as ep___channels_owned from './endpoints/channels/owned.js';
+import * as ep___channels_show from './endpoints/channels/show.js';
+import * as ep___channels_timeline from './endpoints/channels/timeline.js';
+import * as ep___channels_unfollow from './endpoints/channels/unfollow.js';
+import * as ep___channels_update from './endpoints/channels/update.js';
+import * as ep___charts_activeUsers from './endpoints/charts/active-users.js';
+import * as ep___charts_apRequest from './endpoints/charts/ap-request.js';
+import * as ep___charts_drive from './endpoints/charts/drive.js';
+import * as ep___charts_federation from './endpoints/charts/federation.js';
+import * as ep___charts_hashtag from './endpoints/charts/hashtag.js';
+import * as ep___charts_instance from './endpoints/charts/instance.js';
+import * as ep___charts_notes from './endpoints/charts/notes.js';
+import * as ep___charts_user_drive from './endpoints/charts/user/drive.js';
+import * as ep___charts_user_following from './endpoints/charts/user/following.js';
+import * as ep___charts_user_notes from './endpoints/charts/user/notes.js';
+import * as ep___charts_user_reactions from './endpoints/charts/user/reactions.js';
+import * as ep___charts_users from './endpoints/charts/users.js';
+import * as ep___clips_addNote from './endpoints/clips/add-note.js';
+import * as ep___clips_create from './endpoints/clips/create.js';
+import * as ep___clips_delete from './endpoints/clips/delete.js';
+import * as ep___clips_list from './endpoints/clips/list.js';
+import * as ep___clips_notes from './endpoints/clips/notes.js';
+import * as ep___clips_show from './endpoints/clips/show.js';
+import * as ep___clips_update from './endpoints/clips/update.js';
+import * as ep___drive from './endpoints/drive.js';
+import * as ep___drive_files from './endpoints/drive/files.js';
+import * as ep___drive_files_attachedNotes from './endpoints/drive/files/attached-notes.js';
+import * as ep___drive_files_checkExistence from './endpoints/drive/files/check-existence.js';
+import * as ep___drive_files_create from './endpoints/drive/files/create.js';
+import * as ep___drive_files_delete from './endpoints/drive/files/delete.js';
+import * as ep___drive_files_findByHash from './endpoints/drive/files/find-by-hash.js';
+import * as ep___drive_files_find from './endpoints/drive/files/find.js';
+import * as ep___drive_files_show from './endpoints/drive/files/show.js';
+import * as ep___drive_files_update from './endpoints/drive/files/update.js';
+import * as ep___drive_files_uploadFromUrl from './endpoints/drive/files/upload-from-url.js';
+import * as ep___drive_folders from './endpoints/drive/folders.js';
+import * as ep___drive_folders_create from './endpoints/drive/folders/create.js';
+import * as ep___drive_folders_delete from './endpoints/drive/folders/delete.js';
+import * as ep___drive_folders_find from './endpoints/drive/folders/find.js';
+import * as ep___drive_folders_show from './endpoints/drive/folders/show.js';
+import * as ep___drive_folders_update from './endpoints/drive/folders/update.js';
+import * as ep___drive_stream from './endpoints/drive/stream.js';
+import * as ep___emailAddress_available from './endpoints/email-address/available.js';
+import * as ep___endpoint from './endpoints/endpoint.js';
+import * as ep___endpoints from './endpoints/endpoints.js';
+import * as ep___exportCustomEmojis from './endpoints/export-custom-emojis.js';
+import * as ep___federation_followers from './endpoints/federation/followers.js';
+import * as ep___federation_following from './endpoints/federation/following.js';
+import * as ep___federation_instances from './endpoints/federation/instances.js';
+import * as ep___federation_showInstance from './endpoints/federation/show-instance.js';
+import * as ep___federation_updateRemoteUser from './endpoints/federation/update-remote-user.js';
+import * as ep___federation_users from './endpoints/federation/users.js';
+import * as ep___following_create from './endpoints/following/create.js';
+import * as ep___following_delete from './endpoints/following/delete.js';
+import * as ep___following_invalidate from './endpoints/following/invalidate.js';
+import * as ep___following_requests_accept from './endpoints/following/requests/accept.js';
+import * as ep___following_requests_cancel from './endpoints/following/requests/cancel.js';
+import * as ep___following_requests_list from './endpoints/following/requests/list.js';
+import * as ep___following_requests_reject from './endpoints/following/requests/reject.js';
+import * as ep___gallery_featured from './endpoints/gallery/featured.js';
+import * as ep___gallery_popular from './endpoints/gallery/popular.js';
+import * as ep___gallery_posts from './endpoints/gallery/posts.js';
+import * as ep___gallery_posts_create from './endpoints/gallery/posts/create.js';
+import * as ep___gallery_posts_delete from './endpoints/gallery/posts/delete.js';
+import * as ep___gallery_posts_like from './endpoints/gallery/posts/like.js';
+import * as ep___gallery_posts_show from './endpoints/gallery/posts/show.js';
+import * as ep___gallery_posts_unlike from './endpoints/gallery/posts/unlike.js';
+import * as ep___gallery_posts_update from './endpoints/gallery/posts/update.js';
+import * as ep___getOnlineUsersCount from './endpoints/get-online-users-count.js';
+import * as ep___hashtags_list from './endpoints/hashtags/list.js';
+import * as ep___hashtags_search from './endpoints/hashtags/search.js';
+import * as ep___hashtags_show from './endpoints/hashtags/show.js';
+import * as ep___hashtags_trend from './endpoints/hashtags/trend.js';
+import * as ep___hashtags_users from './endpoints/hashtags/users.js';
+import * as ep___i from './endpoints/i.js';
+import * as ep___i_2fa_done from './endpoints/i/2fa/done.js';
+import * as ep___i_2fa_keyDone from './endpoints/i/2fa/key-done.js';
+import * as ep___i_2fa_passwordLess from './endpoints/i/2fa/password-less.js';
+import * as ep___i_2fa_registerKey from './endpoints/i/2fa/register-key.js';
+import * as ep___i_2fa_register from './endpoints/i/2fa/register.js';
+import * as ep___i_2fa_removeKey from './endpoints/i/2fa/remove-key.js';
+import * as ep___i_2fa_unregister from './endpoints/i/2fa/unregister.js';
+import * as ep___i_apps from './endpoints/i/apps.js';
+import * as ep___i_authorizedApps from './endpoints/i/authorized-apps.js';
+import * as ep___i_changePassword from './endpoints/i/change-password.js';
+import * as ep___i_deleteAccount from './endpoints/i/delete-account.js';
+import * as ep___i_exportBlocking from './endpoints/i/export-blocking.js';
+import * as ep___i_exportFollowing from './endpoints/i/export-following.js';
+import * as ep___i_exportMute from './endpoints/i/export-mute.js';
+import * as ep___i_exportNotes from './endpoints/i/export-notes.js';
+import * as ep___i_exportUserLists from './endpoints/i/export-user-lists.js';
+import * as ep___i_favorites from './endpoints/i/favorites.js';
+import * as ep___i_gallery_likes from './endpoints/i/gallery/likes.js';
+import * as ep___i_gallery_posts from './endpoints/i/gallery/posts.js';
+import * as ep___i_getWordMutedNotesCount from './endpoints/i/get-word-muted-notes-count.js';
+import * as ep___i_importBlocking from './endpoints/i/import-blocking.js';
+import * as ep___i_importFollowing from './endpoints/i/import-following.js';
+import * as ep___i_importMuting from './endpoints/i/import-muting.js';
+import * as ep___i_importUserLists from './endpoints/i/import-user-lists.js';
+import * as ep___i_notifications from './endpoints/i/notifications.js';
+import * as ep___i_pageLikes from './endpoints/i/page-likes.js';
+import * as ep___i_pages from './endpoints/i/pages.js';
+import * as ep___i_pin from './endpoints/i/pin.js';
+import * as ep___i_readAllMessagingMessages from './endpoints/i/read-all-messaging-messages.js';
+import * as ep___i_readAllUnreadNotes from './endpoints/i/read-all-unread-notes.js';
+import * as ep___i_readAnnouncement from './endpoints/i/read-announcement.js';
+import * as ep___i_regenerateToken from './endpoints/i/regenerate-token.js';
+import * as ep___i_registry_getAll from './endpoints/i/registry/get-all.js';
+import * as ep___i_registry_getDetail from './endpoints/i/registry/get-detail.js';
+import * as ep___i_registry_get from './endpoints/i/registry/get.js';
+import * as ep___i_registry_keysWithType from './endpoints/i/registry/keys-with-type.js';
+import * as ep___i_registry_keys from './endpoints/i/registry/keys.js';
+import * as ep___i_registry_remove from './endpoints/i/registry/remove.js';
+import * as ep___i_registry_scopes from './endpoints/i/registry/scopes.js';
+import * as ep___i_registry_set from './endpoints/i/registry/set.js';
+import * as ep___i_revokeToken from './endpoints/i/revoke-token.js';
+import * as ep___i_signinHistory from './endpoints/i/signin-history.js';
+import * as ep___i_unpin from './endpoints/i/unpin.js';
+import * as ep___i_updateEmail from './endpoints/i/update-email.js';
+import * as ep___i_update from './endpoints/i/update.js';
+import * as ep___i_userGroupInvites from './endpoints/i/user-group-invites.js';
+import * as ep___messaging_history from './endpoints/messaging/history.js';
+import * as ep___messaging_messages from './endpoints/messaging/messages.js';
+import * as ep___messaging_messages_create from './endpoints/messaging/messages/create.js';
+import * as ep___messaging_messages_delete from './endpoints/messaging/messages/delete.js';
+import * as ep___messaging_messages_read from './endpoints/messaging/messages/read.js';
+import * as ep___meta from './endpoints/meta.js';
+import * as ep___miauth_genToken from './endpoints/miauth/gen-token.js';
+import * as ep___mute_create from './endpoints/mute/create.js';
+import * as ep___mute_delete from './endpoints/mute/delete.js';
+import * as ep___mute_list from './endpoints/mute/list.js';
+import * as ep___my_apps from './endpoints/my/apps.js';
+import * as ep___notes from './endpoints/notes.js';
+import * as ep___notes_children from './endpoints/notes/children.js';
+import * as ep___notes_clips from './endpoints/notes/clips.js';
+import * as ep___notes_conversation from './endpoints/notes/conversation.js';
+import * as ep___notes_create from './endpoints/notes/create.js';
+import * as ep___notes_delete from './endpoints/notes/delete.js';
+import * as ep___notes_favorites_create from './endpoints/notes/favorites/create.js';
+import * as ep___notes_favorites_delete from './endpoints/notes/favorites/delete.js';
+import * as ep___notes_featured from './endpoints/notes/featured.js';
+import * as ep___notes_globalTimeline from './endpoints/notes/global-timeline.js';
+import * as ep___notes_hybridTimeline from './endpoints/notes/hybrid-timeline.js';
+import * as ep___notes_localTimeline from './endpoints/notes/local-timeline.js';
+import * as ep___notes_mentions from './endpoints/notes/mentions.js';
+import * as ep___notes_polls_recommendation from './endpoints/notes/polls/recommendation.js';
+import * as ep___notes_polls_vote from './endpoints/notes/polls/vote.js';
+import * as ep___notes_reactions from './endpoints/notes/reactions.js';
+import * as ep___notes_reactions_create from './endpoints/notes/reactions/create.js';
+import * as ep___notes_reactions_delete from './endpoints/notes/reactions/delete.js';
+import * as ep___notes_renotes from './endpoints/notes/renotes.js';
+import * as ep___notes_replies from './endpoints/notes/replies.js';
+import * as ep___notes_searchByTag from './endpoints/notes/search-by-tag.js';
+import * as ep___notes_search from './endpoints/notes/search.js';
+import * as ep___notes_show from './endpoints/notes/show.js';
+import * as ep___notes_state from './endpoints/notes/state.js';
+import * as ep___notes_threadMuting_create from './endpoints/notes/thread-muting/create.js';
+import * as ep___notes_threadMuting_delete from './endpoints/notes/thread-muting/delete.js';
+import * as ep___notes_timeline from './endpoints/notes/timeline.js';
+import * as ep___notes_translate from './endpoints/notes/translate.js';
+import * as ep___notes_unrenote from './endpoints/notes/unrenote.js';
+import * as ep___notes_userListTimeline from './endpoints/notes/user-list-timeline.js';
+import * as ep___notes_watching_create from './endpoints/notes/watching/create.js';
+import * as ep___notes_watching_delete from './endpoints/notes/watching/delete.js';
+import * as ep___notifications_create from './endpoints/notifications/create.js';
+import * as ep___notifications_markAllAsRead from './endpoints/notifications/mark-all-as-read.js';
+import * as ep___notifications_read from './endpoints/notifications/read.js';
+import * as ep___pagePush from './endpoints/page-push.js';
+import * as ep___pages_create from './endpoints/pages/create.js';
+import * as ep___pages_delete from './endpoints/pages/delete.js';
+import * as ep___pages_featured from './endpoints/pages/featured.js';
+import * as ep___pages_like from './endpoints/pages/like.js';
+import * as ep___pages_show from './endpoints/pages/show.js';
+import * as ep___pages_unlike from './endpoints/pages/unlike.js';
+import * as ep___pages_update from './endpoints/pages/update.js';
+import * as ep___ping from './endpoints/ping.js';
+import * as ep___pinnedUsers from './endpoints/pinned-users.js';
+import * as ep___promo_read from './endpoints/promo/read.js';
+import * as ep___requestResetPassword from './endpoints/request-reset-password.js';
+import * as ep___resetDb from './endpoints/reset-db.js';
+import * as ep___resetPassword from './endpoints/reset-password.js';
+import * as ep___serverInfo from './endpoints/server-info.js';
+import * as ep___stats from './endpoints/stats.js';
+import * as ep___sw_register from './endpoints/sw/register.js';
+import * as ep___sw_unregister from './endpoints/sw/unregister.js';
+import * as ep___test from './endpoints/test.js';
+import * as ep___username_available from './endpoints/username/available.js';
+import * as ep___users from './endpoints/users.js';
+import * as ep___users_clips from './endpoints/users/clips.js';
+import * as ep___users_followers from './endpoints/users/followers.js';
+import * as ep___users_following from './endpoints/users/following.js';
+import * as ep___users_gallery_posts from './endpoints/users/gallery/posts.js';
+import * as ep___users_getFrequentlyRepliedUsers from './endpoints/users/get-frequently-replied-users.js';
+import * as ep___users_groups_create from './endpoints/users/groups/create.js';
+import * as ep___users_groups_delete from './endpoints/users/groups/delete.js';
+import * as ep___users_groups_invitations_accept from './endpoints/users/groups/invitations/accept.js';
+import * as ep___users_groups_invitations_reject from './endpoints/users/groups/invitations/reject.js';
+import * as ep___users_groups_invite from './endpoints/users/groups/invite.js';
+import * as ep___users_groups_joined from './endpoints/users/groups/joined.js';
+import * as ep___users_groups_leave from './endpoints/users/groups/leave.js';
+import * as ep___users_groups_owned from './endpoints/users/groups/owned.js';
+import * as ep___users_groups_pull from './endpoints/users/groups/pull.js';
+import * as ep___users_groups_show from './endpoints/users/groups/show.js';
+import * as ep___users_groups_transfer from './endpoints/users/groups/transfer.js';
+import * as ep___users_groups_update from './endpoints/users/groups/update.js';
+import * as ep___users_lists_create from './endpoints/users/lists/create.js';
+import * as ep___users_lists_delete from './endpoints/users/lists/delete.js';
+import * as ep___users_lists_list from './endpoints/users/lists/list.js';
+import * as ep___users_lists_pull from './endpoints/users/lists/pull.js';
+import * as ep___users_lists_push from './endpoints/users/lists/push.js';
+import * as ep___users_lists_show from './endpoints/users/lists/show.js';
+import * as ep___users_lists_update from './endpoints/users/lists/update.js';
+import * as ep___users_notes from './endpoints/users/notes.js';
+import * as ep___users_pages from './endpoints/users/pages.js';
+import * as ep___users_reactions from './endpoints/users/reactions.js';
+import * as ep___users_recommendation from './endpoints/users/recommendation.js';
+import * as ep___users_relation from './endpoints/users/relation.js';
+import * as ep___users_reportAbuse from './endpoints/users/report-abuse.js';
+import * as ep___users_searchByUsernameAndHost from './endpoints/users/search-by-username-and-host.js';
+import * as ep___users_search from './endpoints/users/search.js';
+import * as ep___users_show from './endpoints/users/show.js';
+import * as ep___users_stats from './endpoints/users/stats.js';
+
+const eps = [
+	['admin/abuse-user-reports', ep___admin_abuseUserReports],
+	['admin/accounts/create', ep___admin_accounts_create],
+	['admin/accounts/delete', ep___admin_accounts_delete],
+	['admin/ad/create', ep___admin_ad_create],
+	['admin/ad/delete', ep___admin_ad_delete],
+	['admin/ad/list', ep___admin_ad_list],
+	['admin/ad/update', ep___admin_ad_update],
+	['admin/announcements/create', ep___admin_announcements_create],
+	['admin/announcements/delete', ep___admin_announcements_delete],
+	['admin/announcements/list', ep___admin_announcements_list],
+	['admin/announcements/update', ep___admin_announcements_update],
+	['admin/delete-all-files-of-a-user', ep___admin_deleteAllFilesOfAUser],
+	['admin/drive/clean-remote-files', ep___admin_drive_cleanRemoteFiles],
+	['admin/drive/cleanup', ep___admin_drive_cleanup],
+	['admin/drive/files', ep___admin_drive_files],
+	['admin/drive/show-file', ep___admin_drive_showFile],
+	['admin/emoji/add-aliases-bulk', ep___admin_emoji_addAliasesBulk],
+	['admin/emoji/add', ep___admin_emoji_add],
+	['admin/emoji/copy', ep___admin_emoji_copy],
+	['admin/emoji/delete-bulk', ep___admin_emoji_deleteBulk],
+	['admin/emoji/delete', ep___admin_emoji_delete],
+	['admin/emoji/import-zip', ep___admin_emoji_importZip],
+	['admin/emoji/list-remote', ep___admin_emoji_listRemote],
+	['admin/emoji/list', ep___admin_emoji_list],
+	['admin/emoji/remove-aliases-bulk', ep___admin_emoji_removeAliasesBulk],
+	['admin/emoji/set-aliases-bulk', ep___admin_emoji_setAliasesBulk],
+	['admin/emoji/set-category-bulk', ep___admin_emoji_setCategoryBulk],
+	['admin/emoji/update', ep___admin_emoji_update],
+	['admin/federation/delete-all-files', ep___admin_federation_deleteAllFiles],
+	['admin/federation/refresh-remote-instance-metadata', ep___admin_federation_refreshRemoteInstanceMetadata],
+	['admin/federation/remove-all-following', ep___admin_federation_removeAllFollowing],
+	['admin/federation/update-instance', ep___admin_federation_updateInstance],
+	['admin/get-index-stats', ep___admin_getIndexStats],
+	['admin/get-table-stats', ep___admin_getTableStats],
+	['admin/invite', ep___admin_invite],
+	['admin/moderators/add', ep___admin_moderators_add],
+	['admin/moderators/remove', ep___admin_moderators_remove],
+	['admin/promo/create', ep___admin_promo_create],
+	['admin/queue/clear', ep___admin_queue_clear],
+	['admin/queue/deliver-delayed', ep___admin_queue_deliverDelayed],
+	['admin/queue/inbox-delayed', ep___admin_queue_inboxDelayed],
+	['admin/queue/stats', ep___admin_queue_stats],
+	['admin/relays/add', ep___admin_relays_add],
+	['admin/relays/list', ep___admin_relays_list],
+	['admin/relays/remove', ep___admin_relays_remove],
+	['admin/reset-password', ep___admin_resetPassword],
+	['admin/resolve-abuse-user-report', ep___admin_resolveAbuseUserReport],
+	['admin/send-email', ep___admin_sendEmail],
+	['admin/server-info', ep___admin_serverInfo],
+	['admin/show-moderation-logs', ep___admin_showModerationLogs],
+	['admin/show-user', ep___admin_showUser],
+	['admin/show-users', ep___admin_showUsers],
+	['admin/silence-user', ep___admin_silenceUser],
+	['admin/suspend-user', ep___admin_suspendUser],
+	['admin/unsilence-user', ep___admin_unsilenceUser],
+	['admin/unsuspend-user', ep___admin_unsuspendUser],
+	['admin/update-meta', ep___admin_updateMeta],
+	['admin/vacuum', ep___admin_vacuum],
+	['announcements', ep___announcements],
+	['antennas/create', ep___antennas_create],
+	['antennas/delete', ep___antennas_delete],
+	['antennas/list', ep___antennas_list],
+	['antennas/notes', ep___antennas_notes],
+	['antennas/show', ep___antennas_show],
+	['antennas/update', ep___antennas_update],
+	['ap/get', ep___ap_get],
+	['ap/show', ep___ap_show],
+	['app/create', ep___app_create],
+	['app/show', ep___app_show],
+	['auth/accept', ep___auth_accept],
+	['auth/session/generate', ep___auth_session_generate],
+	['auth/session/show', ep___auth_session_show],
+	['auth/session/userkey', ep___auth_session_userkey],
+	['blocking/create', ep___blocking_create],
+	['blocking/delete', ep___blocking_delete],
+	['blocking/list', ep___blocking_list],
+	['channels/create', ep___channels_create],
+	['channels/featured', ep___channels_featured],
+	['channels/follow', ep___channels_follow],
+	['channels/followed', ep___channels_followed],
+	['channels/owned', ep___channels_owned],
+	['channels/show', ep___channels_show],
+	['channels/timeline', ep___channels_timeline],
+	['channels/unfollow', ep___channels_unfollow],
+	['channels/update', ep___channels_update],
+	['charts/active-users', ep___charts_activeUsers],
+	['charts/ap-request', ep___charts_apRequest],
+	['charts/drive', ep___charts_drive],
+	['charts/federation', ep___charts_federation],
+	['charts/hashtag', ep___charts_hashtag],
+	['charts/instance', ep___charts_instance],
+	['charts/notes', ep___charts_notes],
+	['charts/user/drive', ep___charts_user_drive],
+	['charts/user/following', ep___charts_user_following],
+	['charts/user/notes', ep___charts_user_notes],
+	['charts/user/reactions', ep___charts_user_reactions],
+	['charts/users', ep___charts_users],
+	['clips/add-note', ep___clips_addNote],
+	['clips/create', ep___clips_create],
+	['clips/delete', ep___clips_delete],
+	['clips/list', ep___clips_list],
+	['clips/notes', ep___clips_notes],
+	['clips/show', ep___clips_show],
+	['clips/update', ep___clips_update],
+	['drive', ep___drive],
+	['drive/files', ep___drive_files],
+	['drive/files/attached-notes', ep___drive_files_attachedNotes],
+	['drive/files/check-existence', ep___drive_files_checkExistence],
+	['drive/files/create', ep___drive_files_create],
+	['drive/files/delete', ep___drive_files_delete],
+	['drive/files/find-by-hash', ep___drive_files_findByHash],
+	['drive/files/find', ep___drive_files_find],
+	['drive/files/show', ep___drive_files_show],
+	['drive/files/update', ep___drive_files_update],
+	['drive/files/upload-from-url', ep___drive_files_uploadFromUrl],
+	['drive/folders', ep___drive_folders],
+	['drive/folders/create', ep___drive_folders_create],
+	['drive/folders/delete', ep___drive_folders_delete],
+	['drive/folders/find', ep___drive_folders_find],
+	['drive/folders/show', ep___drive_folders_show],
+	['drive/folders/update', ep___drive_folders_update],
+	['drive/stream', ep___drive_stream],
+	['email-address/available', ep___emailAddress_available],
+	['endpoint', ep___endpoint],
+	['endpoints', ep___endpoints],
+	['export-custom-emojis', ep___exportCustomEmojis],
+	['federation/followers', ep___federation_followers],
+	['federation/following', ep___federation_following],
+	['federation/instances', ep___federation_instances],
+	['federation/show-instance', ep___federation_showInstance],
+	['federation/update-remote-user', ep___federation_updateRemoteUser],
+	['federation/users', ep___federation_users],
+	['following/create', ep___following_create],
+	['following/delete', ep___following_delete],
+	['following/invalidate', ep___following_invalidate],
+	['following/requests/accept', ep___following_requests_accept],
+	['following/requests/cancel', ep___following_requests_cancel],
+	['following/requests/list', ep___following_requests_list],
+	['following/requests/reject', ep___following_requests_reject],
+	['gallery/featured', ep___gallery_featured],
+	['gallery/popular', ep___gallery_popular],
+	['gallery/posts', ep___gallery_posts],
+	['gallery/posts/create', ep___gallery_posts_create],
+	['gallery/posts/delete', ep___gallery_posts_delete],
+	['gallery/posts/like', ep___gallery_posts_like],
+	['gallery/posts/show', ep___gallery_posts_show],
+	['gallery/posts/unlike', ep___gallery_posts_unlike],
+	['gallery/posts/update', ep___gallery_posts_update],
+	['get-online-users-count', ep___getOnlineUsersCount],
+	['hashtags/list', ep___hashtags_list],
+	['hashtags/search', ep___hashtags_search],
+	['hashtags/show', ep___hashtags_show],
+	['hashtags/trend', ep___hashtags_trend],
+	['hashtags/users', ep___hashtags_users],
+	['i', ep___i],
+	['i/2fa/done', ep___i_2fa_done],
+	['i/2fa/key-done', ep___i_2fa_keyDone],
+	['i/2fa/password-less', ep___i_2fa_passwordLess],
+	['i/2fa/register-key', ep___i_2fa_registerKey],
+	['i/2fa/register', ep___i_2fa_register],
+	['i/2fa/remove-key', ep___i_2fa_removeKey],
+	['i/2fa/unregister', ep___i_2fa_unregister],
+	['i/apps', ep___i_apps],
+	['i/authorized-apps', ep___i_authorizedApps],
+	['i/change-password', ep___i_changePassword],
+	['i/delete-account', ep___i_deleteAccount],
+	['i/export-blocking', ep___i_exportBlocking],
+	['i/export-following', ep___i_exportFollowing],
+	['i/export-mute', ep___i_exportMute],
+	['i/export-notes', ep___i_exportNotes],
+	['i/export-user-lists', ep___i_exportUserLists],
+	['i/favorites', ep___i_favorites],
+	['i/gallery/likes', ep___i_gallery_likes],
+	['i/gallery/posts', ep___i_gallery_posts],
+	['i/get-word-muted-notes-count', ep___i_getWordMutedNotesCount],
+	['i/import-blocking', ep___i_importBlocking],
+	['i/import-following', ep___i_importFollowing],
+	['i/import-muting', ep___i_importMuting],
+	['i/import-user-lists', ep___i_importUserLists],
+	['i/notifications', ep___i_notifications],
+	['i/page-likes', ep___i_pageLikes],
+	['i/pages', ep___i_pages],
+	['i/pin', ep___i_pin],
+	['i/read-all-messaging-messages', ep___i_readAllMessagingMessages],
+	['i/read-all-unread-notes', ep___i_readAllUnreadNotes],
+	['i/read-announcement', ep___i_readAnnouncement],
+	['i/regenerate-token', ep___i_regenerateToken],
+	['i/registry/get-all', ep___i_registry_getAll],
+	['i/registry/get-detail', ep___i_registry_getDetail],
+	['i/registry/get', ep___i_registry_get],
+	['i/registry/keys-with-type', ep___i_registry_keysWithType],
+	['i/registry/keys', ep___i_registry_keys],
+	['i/registry/remove', ep___i_registry_remove],
+	['i/registry/scopes', ep___i_registry_scopes],
+	['i/registry/set', ep___i_registry_set],
+	['i/revoke-token', ep___i_revokeToken],
+	['i/signin-history', ep___i_signinHistory],
+	['i/unpin', ep___i_unpin],
+	['i/update-email', ep___i_updateEmail],
+	['i/update', ep___i_update],
+	['i/user-group-invites', ep___i_userGroupInvites],
+	['messaging/history', ep___messaging_history],
+	['messaging/messages', ep___messaging_messages],
+	['messaging/messages/create', ep___messaging_messages_create],
+	['messaging/messages/delete', ep___messaging_messages_delete],
+	['messaging/messages/read', ep___messaging_messages_read],
+	['meta', ep___meta],
+	['miauth/gen-token', ep___miauth_genToken],
+	['mute/create', ep___mute_create],
+	['mute/delete', ep___mute_delete],
+	['mute/list', ep___mute_list],
+	['my/apps', ep___my_apps],
+	['notes', ep___notes],
+	['notes/children', ep___notes_children],
+	['notes/clips', ep___notes_clips],
+	['notes/conversation', ep___notes_conversation],
+	['notes/create', ep___notes_create],
+	['notes/delete', ep___notes_delete],
+	['notes/favorites/create', ep___notes_favorites_create],
+	['notes/favorites/delete', ep___notes_favorites_delete],
+	['notes/featured', ep___notes_featured],
+	['notes/global-timeline', ep___notes_globalTimeline],
+	['notes/hybrid-timeline', ep___notes_hybridTimeline],
+	['notes/local-timeline', ep___notes_localTimeline],
+	['notes/mentions', ep___notes_mentions],
+	['notes/polls/recommendation', ep___notes_polls_recommendation],
+	['notes/polls/vote', ep___notes_polls_vote],
+	['notes/reactions', ep___notes_reactions],
+	['notes/reactions/create', ep___notes_reactions_create],
+	['notes/reactions/delete', ep___notes_reactions_delete],
+	['notes/renotes', ep___notes_renotes],
+	['notes/replies', ep___notes_replies],
+	['notes/search-by-tag', ep___notes_searchByTag],
+	['notes/search', ep___notes_search],
+	['notes/show', ep___notes_show],
+	['notes/state', ep___notes_state],
+	['notes/thread-muting/create', ep___notes_threadMuting_create],
+	['notes/thread-muting/delete', ep___notes_threadMuting_delete],
+	['notes/timeline', ep___notes_timeline],
+	['notes/translate', ep___notes_translate],
+	['notes/unrenote', ep___notes_unrenote],
+	['notes/user-list-timeline', ep___notes_userListTimeline],
+	['notes/watching/create', ep___notes_watching_create],
+	['notes/watching/delete', ep___notes_watching_delete],
+	['notifications/create', ep___notifications_create],
+	['notifications/mark-all-as-read', ep___notifications_markAllAsRead],
+	['notifications/read', ep___notifications_read],
+	['page-push', ep___pagePush],
+	['pages/create', ep___pages_create],
+	['pages/delete', ep___pages_delete],
+	['pages/featured', ep___pages_featured],
+	['pages/like', ep___pages_like],
+	['pages/show', ep___pages_show],
+	['pages/unlike', ep___pages_unlike],
+	['pages/update', ep___pages_update],
+	['ping', ep___ping],
+	['pinned-users', ep___pinnedUsers],
+	['promo/read', ep___promo_read],
+	['request-reset-password', ep___requestResetPassword],
+	['reset-db', ep___resetDb],
+	['reset-password', ep___resetPassword],
+	['server-info', ep___serverInfo],
+	['stats', ep___stats],
+	['sw/register', ep___sw_register],
+	['sw/unregister', ep___sw_unregister],
+	['test', ep___test],
+	['username/available', ep___username_available],
+	['users', ep___users],
+	['users/clips', ep___users_clips],
+	['users/followers', ep___users_followers],
+	['users/following', ep___users_following],
+	['users/gallery/posts', ep___users_gallery_posts],
+	['users/get-frequently-replied-users', ep___users_getFrequentlyRepliedUsers],
+	['users/groups/create', ep___users_groups_create],
+	['users/groups/delete', ep___users_groups_delete],
+	['users/groups/invitations/accept', ep___users_groups_invitations_accept],
+	['users/groups/invitations/reject', ep___users_groups_invitations_reject],
+	['users/groups/invite', ep___users_groups_invite],
+	['users/groups/joined', ep___users_groups_joined],
+	['users/groups/leave', ep___users_groups_leave],
+	['users/groups/owned', ep___users_groups_owned],
+	['users/groups/pull', ep___users_groups_pull],
+	['users/groups/show', ep___users_groups_show],
+	['users/groups/transfer', ep___users_groups_transfer],
+	['users/groups/update', ep___users_groups_update],
+	['users/lists/create', ep___users_lists_create],
+	['users/lists/delete', ep___users_lists_delete],
+	['users/lists/list', ep___users_lists_list],
+	['users/lists/pull', ep___users_lists_pull],
+	['users/lists/push', ep___users_lists_push],
+	['users/lists/show', ep___users_lists_show],
+	['users/lists/update', ep___users_lists_update],
+	['users/notes', ep___users_notes],
+	['users/pages', ep___users_pages],
+	['users/reactions', ep___users_reactions],
+	['users/recommendation', ep___users_recommendation],
+	['users/relation', ep___users_relation],
+	['users/report-abuse', ep___users_reportAbuse],
+	['users/search-by-username-and-host', ep___users_searchByUsernameAndHost],
+	['users/search', ep___users_search],
+	['users/show', ep___users_show],
+	['users/stats', ep___users_stats],
+];
 
 export interface IEndpointMeta {
 	readonly stability?: 'deprecated' | 'experimental' | 'stable';
@@ -96,15 +697,9 @@ export interface IEndpoint {
 	params: Schema;
 }
 
-const files = glob.sync('**/*.js', {
-	cwd: path.resolve(_dirname + '/endpoints/'),
-});
-
-const endpoints: IEndpoint[] = files.map(f => {
-	const ep = require(`./endpoints/${f}`);
-
+const endpoints: IEndpoint[] = eps.map(([name, ep]) => {
 	return {
-		name: f.replace('.js', ''),
+		name: name,
 		exec: ep.default,
 		meta: ep.meta || {},
 		params: ep.paramDef,
diff --git a/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts b/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
index 6ab9c87e3c..333746f423 100644
--- a/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
+++ b/packages/backend/src/server/api/endpoints/admin/abuse-user-reports.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { AbuseUserReports } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { AbuseUserReports } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
index 421726d60f..2820c7993d 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Users } from '@/models/index';
-import { signup } from '../../../common/signup';
+import define from '../../../define.js';
+import { Users } from '@/models/index.js';
+import { signup } from '../../../common/signup.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts b/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
index cf48a906f0..01754ec8f3 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/delete.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { Users } from '@/models/index';
-import { doPostSuspend } from '@/services/suspend-user';
-import { publishUserEvent } from '@/services/stream';
-import { createDeleteAccountJob } from '@/queue';
+import define from '../../../define.js';
+import { Users } from '@/models/index.js';
+import { doPostSuspend } from '@/services/suspend-user.js';
+import { publishUserEvent } from '@/services/stream.js';
+import { createDeleteAccountJob } from '@/queue/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/ad/create.ts b/packages/backend/src/server/api/endpoints/admin/ad/create.ts
index c1efaf6314..ab2c50b50f 100644
--- a/packages/backend/src/server/api/endpoints/admin/ad/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/ad/create.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Ads } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { Ads } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/ad/delete.ts b/packages/backend/src/server/api/endpoints/admin/ad/delete.ts
index 1b9607b5aa..3663d974c5 100644
--- a/packages/backend/src/server/api/endpoints/admin/ad/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/ad/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Ads } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { Ads } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/ad/list.ts b/packages/backend/src/server/api/endpoints/admin/ad/list.ts
index 5b72f72937..74f154f272 100644
--- a/packages/backend/src/server/api/endpoints/admin/ad/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/ad/list.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Ads } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { Ads } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/ad/update.ts b/packages/backend/src/server/api/endpoints/admin/ad/update.ts
index 93902e79c1..89c421db66 100644
--- a/packages/backend/src/server/api/endpoints/admin/ad/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/ad/update.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Ads } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { Ads } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/announcements/create.ts b/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
index 884dd5e280..41570078d4 100644
--- a/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/announcements/create.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Announcements } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { Announcements } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/announcements/delete.ts b/packages/backend/src/server/api/endpoints/admin/announcements/delete.ts
index c09307193f..4871dc4e12 100644
--- a/packages/backend/src/server/api/endpoints/admin/announcements/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/announcements/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Announcements } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { Announcements } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/announcements/list.ts b/packages/backend/src/server/api/endpoints/admin/announcements/list.ts
index af48925ec1..0ba0a8ee08 100644
--- a/packages/backend/src/server/api/endpoints/admin/announcements/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/announcements/list.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Announcements, AnnouncementReads } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { Announcements, AnnouncementReads } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/announcements/update.ts b/packages/backend/src/server/api/endpoints/admin/announcements/update.ts
index fb4d5e95ba..138337ef5b 100644
--- a/packages/backend/src/server/api/endpoints/admin/announcements/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/announcements/update.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Announcements } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { Announcements } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/delete-all-files-of-a-user.ts b/packages/backend/src/server/api/endpoints/admin/delete-all-files-of-a-user.ts
index dde84ae45e..90e65ec4cd 100644
--- a/packages/backend/src/server/api/endpoints/admin/delete-all-files-of-a-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/delete-all-files-of-a-user.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { deleteFile } from '@/services/drive/delete-file';
-import { DriveFiles } from '@/models/index';
+import define from '../../define.js';
+import { deleteFile } from '@/services/drive/delete-file.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/drive/clean-remote-files.ts b/packages/backend/src/server/api/endpoints/admin/drive/clean-remote-files.ts
index c42b5caac2..bab149532e 100644
--- a/packages/backend/src/server/api/endpoints/admin/drive/clean-remote-files.ts
+++ b/packages/backend/src/server/api/endpoints/admin/drive/clean-remote-files.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { createCleanRemoteFilesJob } from '@/queue/index';
+import define from '../../../define.js';
+import { createCleanRemoteFilesJob } from '@/queue/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts b/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts
index a7ce154cf2..3e7d43fb0b 100644
--- a/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts
+++ b/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts
@@ -1,7 +1,7 @@
 import { IsNull } from 'typeorm';
-import define from '../../../define';
-import { deleteFile } from '@/services/drive/delete-file';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { deleteFile } from '@/services/drive/delete-file.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/drive/files.ts b/packages/backend/src/server/api/endpoints/admin/drive/files.ts
index 0b5544ce28..646d85a1e0 100644
--- a/packages/backend/src/server/api/endpoints/admin/drive/files.ts
+++ b/packages/backend/src/server/api/endpoints/admin/drive/files.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { DriveFiles } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { DriveFiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/drive/show-file.ts b/packages/backend/src/server/api/endpoints/admin/drive/show-file.ts
index efd4a8e4aa..e821160095 100644
--- a/packages/backend/src/server/api/endpoints/admin/drive/show-file.ts
+++ b/packages/backend/src/server/api/endpoints/admin/drive/show-file.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
index 4ddea09b1c..77a4adea61 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add-aliases-bulk.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection, In } from 'typeorm';
-import { ApiError } from '../../../error';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
index 2ca3aade99..c5787d59dc 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/add.ts
@@ -1,11 +1,11 @@
-import define from '../../../define';
-import { Emojis, DriveFiles } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { Emojis, DriveFiles } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 import { getConnection } from 'typeorm';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { ApiError } from '../../../error';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { ApiError } from '../../../error.js';
 import rndstr from 'rndstr';
-import { publishBroadcastStream } from '@/services/stream';
+import { publishBroadcastStream } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
index f2dc11f664..a0eaa61258 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/copy.ts
@@ -1,11 +1,11 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 import { getConnection } from 'typeorm';
-import { ApiError } from '../../../error';
-import { DriveFile } from '@/models/entities/drive-file';
-import { uploadFromUrl } from '@/services/drive/upload-from-url';
-import { publishBroadcastStream } from '@/services/stream';
+import { ApiError } from '../../../error.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
+import { uploadFromUrl } from '@/services/drive/upload-from-url.js';
+import { publishBroadcastStream } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
index d35ef660e4..38a2d65cf6 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/delete-bulk.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection, In } from 'typeorm';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { ApiError } from '../../../error';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts b/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
index 2dabd60a0f..a0cffb47f8 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/delete.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection } from 'typeorm';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { ApiError } from '../../../error';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts b/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
index 98d8d4fef9..3f03dc2da4 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/import-zip.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { createImportCustomEmojisJob } from '@/queue/index';
+import define from '../../../define.js';
+import { createImportCustomEmojisJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts b/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
index e519f64ff0..f19c3ddbd8 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/list-remote.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
-import { toPuny } from '@/misc/convert-host';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
+import { toPuny } from '@/misc/convert-host.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/list.ts b/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
index 8e26da3d64..f488a71a00 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/list.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
-import { Emoji } from '@/models/entities/emoji';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
+import { Emoji } from '@/models/entities/emoji.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
index e619053e58..dbad93d336 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/remove-aliases-bulk.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection, In } from 'typeorm';
-import { ApiError } from '../../../error';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
index dff90193e7..470b9bef08 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-aliases-bulk.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection, In } from 'typeorm';
-import { ApiError } from '../../../error';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
index 462e7a742c..40e4c0199e 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-category-bulk.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection, In } from 'typeorm';
-import { ApiError } from '../../../error';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/update.ts b/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
index 870d568311..c6d07e16fa 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/update.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Emojis } from '@/models/index';
+import define from '../../../define.js';
+import { Emojis } from '@/models/index.js';
 import { getConnection } from 'typeorm';
-import { ApiError } from '../../../error';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/federation/delete-all-files.ts b/packages/backend/src/server/api/endpoints/admin/federation/delete-all-files.ts
index 71c1c41cf6..d4251f2feb 100644
--- a/packages/backend/src/server/api/endpoints/admin/federation/delete-all-files.ts
+++ b/packages/backend/src/server/api/endpoints/admin/federation/delete-all-files.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { deleteFile } from '@/services/drive/delete-file';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { deleteFile } from '@/services/drive/delete-file.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/federation/refresh-remote-instance-metadata.ts b/packages/backend/src/server/api/endpoints/admin/federation/refresh-remote-instance-metadata.ts
index df73453f78..86978cc309 100644
--- a/packages/backend/src/server/api/endpoints/admin/federation/refresh-remote-instance-metadata.ts
+++ b/packages/backend/src/server/api/endpoints/admin/federation/refresh-remote-instance-metadata.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { Instances } from '@/models/index';
-import { toPuny } from '@/misc/convert-host';
-import { fetchInstanceMetadata } from '@/services/fetch-instance-metadata';
+import define from '../../../define.js';
+import { Instances } from '@/models/index.js';
+import { toPuny } from '@/misc/convert-host.js';
+import { fetchInstanceMetadata } from '@/services/fetch-instance-metadata.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/federation/remove-all-following.ts b/packages/backend/src/server/api/endpoints/admin/federation/remove-all-following.ts
index 0ae58de534..ccd07489cb 100644
--- a/packages/backend/src/server/api/endpoints/admin/federation/remove-all-following.ts
+++ b/packages/backend/src/server/api/endpoints/admin/federation/remove-all-following.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import deleteFollowing from '@/services/following/delete';
-import { Followings, Users } from '@/models/index';
+import define from '../../../define.js';
+import deleteFollowing from '@/services/following/delete.js';
+import { Followings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/federation/update-instance.ts b/packages/backend/src/server/api/endpoints/admin/federation/update-instance.ts
index 9a3c35d055..1981082428 100644
--- a/packages/backend/src/server/api/endpoints/admin/federation/update-instance.ts
+++ b/packages/backend/src/server/api/endpoints/admin/federation/update-instance.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { Instances } from '@/models/index';
-import { toPuny } from '@/misc/convert-host';
+import define from '../../../define.js';
+import { Instances } from '@/models/index.js';
+import { toPuny } from '@/misc/convert-host.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/get-index-stats.ts b/packages/backend/src/server/api/endpoints/admin/get-index-stats.ts
index 17ce1bfce9..37878c4143 100644
--- a/packages/backend/src/server/api/endpoints/admin/get-index-stats.ts
+++ b/packages/backend/src/server/api/endpoints/admin/get-index-stats.ts
@@ -1,4 +1,4 @@
-import define from '../../define';
+import define from '../../define.js';
 import { getConnection } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/admin/get-table-stats.ts b/packages/backend/src/server/api/endpoints/admin/get-table-stats.ts
index e980ca96ef..7cf2d5ffd4 100644
--- a/packages/backend/src/server/api/endpoints/admin/get-table-stats.ts
+++ b/packages/backend/src/server/api/endpoints/admin/get-table-stats.ts
@@ -1,4 +1,4 @@
-import define from '../../define';
+import define from '../../define.js';
 import { getConnection } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/admin/invite.ts b/packages/backend/src/server/api/endpoints/admin/invite.ts
index 45392f85c7..7e950cf87b 100644
--- a/packages/backend/src/server/api/endpoints/admin/invite.ts
+++ b/packages/backend/src/server/api/endpoints/admin/invite.ts
@@ -1,7 +1,7 @@
 import rndstr from 'rndstr';
-import define from '../../define';
-import { RegistrationTickets } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../define.js';
+import { RegistrationTickets } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/moderators/add.ts b/packages/backend/src/server/api/endpoints/admin/moderators/add.ts
index 3bf66f3c86..4206e3a3c2 100644
--- a/packages/backend/src/server/api/endpoints/admin/moderators/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/moderators/add.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { Users } from '@/models/index';
+import define from '../../../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/moderators/remove.ts b/packages/backend/src/server/api/endpoints/admin/moderators/remove.ts
index e2e96de3c1..143119bfe4 100644
--- a/packages/backend/src/server/api/endpoints/admin/moderators/remove.ts
+++ b/packages/backend/src/server/api/endpoints/admin/moderators/remove.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { Users } from '@/models/index';
+import define from '../../../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/promo/create.ts b/packages/backend/src/server/api/endpoints/admin/promo/create.ts
index 4f714c579c..2eec5bf0db 100644
--- a/packages/backend/src/server/api/endpoints/admin/promo/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/promo/create.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getNote } from '../../../common/getters';
-import { PromoNotes } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getNote } from '../../../common/getters.js';
+import { PromoNotes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/clear.ts b/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
index fd1dba8e50..8f015c280a 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/clear.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { destroy } from '@/queue/index';
-import { insertModerationLog } from '@/services/insert-moderation-log';
+import define from '../../../define.js';
+import { destroy } from '@/queue/index.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts b/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
index 080a7da04f..70f7d77de4 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/deliver-delayed.ts
@@ -1,6 +1,6 @@
-import { deliverQueue } from '@/queue/queues';
-import { URL } from 'url';
-import define from '../../../define';
+import { deliverQueue } from '@/queue/queues.js';
+import { URL } from 'node:url';
+import define from '../../../define.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts b/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
index c452b620ec..2235ce8f97 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/inbox-delayed.ts
@@ -1,6 +1,6 @@
-import { URL } from 'url';
-import define from '../../../define';
-import { inboxQueue } from '@/queue/queues';
+import { URL } from 'node:url';
+import define from '../../../define.js';
+import { inboxQueue } from '@/queue/queues.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/queue/stats.ts b/packages/backend/src/server/api/endpoints/admin/queue/stats.ts
index 6b883aebee..988b5a5e35 100644
--- a/packages/backend/src/server/api/endpoints/admin/queue/stats.ts
+++ b/packages/backend/src/server/api/endpoints/admin/queue/stats.ts
@@ -1,5 +1,5 @@
-import { deliverQueue, inboxQueue, dbQueue, objectStorageQueue } from '@/queue/queues';
-import define from '../../../define';
+import { deliverQueue, inboxQueue, dbQueue, objectStorageQueue } from '@/queue/queues.js';
+import define from '../../../define.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/relays/add.ts b/packages/backend/src/server/api/endpoints/admin/relays/add.ts
index e8eb249f93..348e9baca1 100644
--- a/packages/backend/src/server/api/endpoints/admin/relays/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/relays/add.ts
@@ -1,7 +1,7 @@
-import { URL } from 'url';
-import define from '../../../define';
-import { addRelay } from '@/services/relay';
-import { ApiError } from '../../../error';
+import { URL } from 'node:url';
+import define from '../../../define.js';
+import { addRelay } from '@/services/relay.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/relays/list.ts b/packages/backend/src/server/api/endpoints/admin/relays/list.ts
index da2c32ce4f..89ec651e61 100644
--- a/packages/backend/src/server/api/endpoints/admin/relays/list.ts
+++ b/packages/backend/src/server/api/endpoints/admin/relays/list.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { listRelay } from '@/services/relay';
+import define from '../../../define.js';
+import { listRelay } from '@/services/relay.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/relays/remove.ts b/packages/backend/src/server/api/endpoints/admin/relays/remove.ts
index 26a16284db..b59cf72c58 100644
--- a/packages/backend/src/server/api/endpoints/admin/relays/remove.ts
+++ b/packages/backend/src/server/api/endpoints/admin/relays/remove.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { removeRelay } from '@/services/relay';
+import define from '../../../define.js';
+import { removeRelay } from '@/services/relay.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/reset-password.ts b/packages/backend/src/server/api/endpoints/admin/reset-password.ts
index 5036d76d1f..1fd5c8d5a5 100644
--- a/packages/backend/src/server/api/endpoints/admin/reset-password.ts
+++ b/packages/backend/src/server/api/endpoints/admin/reset-password.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import * as bcrypt from 'bcryptjs';
+import define from '../../define.js';
+import bcrypt from 'bcryptjs';
 import rndstr from 'rndstr';
-import { Users, UserProfiles } from '@/models/index';
+import { Users, UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/resolve-abuse-user-report.ts b/packages/backend/src/server/api/endpoints/admin/resolve-abuse-user-report.ts
index ec8b56083c..a9e5658413 100644
--- a/packages/backend/src/server/api/endpoints/admin/resolve-abuse-user-report.ts
+++ b/packages/backend/src/server/api/endpoints/admin/resolve-abuse-user-report.ts
@@ -1,9 +1,9 @@
-import define from '../../define';
-import { AbuseUserReports, Users } from '@/models/index';
-import { getInstanceActor } from '@/services/instance-actor';
-import { deliver } from '@/queue/index';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import { renderFlag } from '@/remote/activitypub/renderer/flag';
+import define from '../../define.js';
+import { AbuseUserReports, Users } from '@/models/index.js';
+import { getInstanceActor } from '@/services/instance-actor.js';
+import { deliver } from '@/queue/index.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import { renderFlag } from '@/remote/activitypub/renderer/flag.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/send-email.ts b/packages/backend/src/server/api/endpoints/admin/send-email.ts
index 819ff8fd03..bbdd66e4c9 100644
--- a/packages/backend/src/server/api/endpoints/admin/send-email.ts
+++ b/packages/backend/src/server/api/endpoints/admin/send-email.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { sendEmail } from '@/services/send-email';
+import define from '../../define.js';
+import { sendEmail } from '@/services/send-email.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/server-info.ts b/packages/backend/src/server/api/endpoints/admin/server-info.ts
index ece9bff53e..8bf1c4341c 100644
--- a/packages/backend/src/server/api/endpoints/admin/server-info.ts
+++ b/packages/backend/src/server/api/endpoints/admin/server-info.ts
@@ -1,8 +1,8 @@
-import * as os from 'os';
-import * as si from 'systeminformation';
+import * as os from 'node:os';
+import si from 'systeminformation';
 import { getConnection } from 'typeorm';
-import define from '../../define';
-import { redisClient } from '../../../../db/redis';
+import define from '../../define.js';
+import { redisClient } from '../../../../db/redis.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/admin/show-moderation-logs.ts b/packages/backend/src/server/api/endpoints/admin/show-moderation-logs.ts
index 1688a1fc53..3545536aa2 100644
--- a/packages/backend/src/server/api/endpoints/admin/show-moderation-logs.ts
+++ b/packages/backend/src/server/api/endpoints/admin/show-moderation-logs.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ModerationLogs } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { ModerationLogs } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/show-user.ts b/packages/backend/src/server/api/endpoints/admin/show-user.ts
index 46b6609869..a435dcc288 100644
--- a/packages/backend/src/server/api/endpoints/admin/show-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/show-user.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Users } from '@/models/index';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/show-users.ts b/packages/backend/src/server/api/endpoints/admin/show-users.ts
index bc4b319e17..1ec86fef2e 100644
--- a/packages/backend/src/server/api/endpoints/admin/show-users.ts
+++ b/packages/backend/src/server/api/endpoints/admin/show-users.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Users } from '@/models/index';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/silence-user.ts b/packages/backend/src/server/api/endpoints/admin/silence-user.ts
index 54ef60f7fe..4a74c3fb00 100644
--- a/packages/backend/src/server/api/endpoints/admin/silence-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/silence-user.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Users } from '@/models/index';
-import { insertModerationLog } from '@/services/insert-moderation-log';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/suspend-user.ts b/packages/backend/src/server/api/endpoints/admin/suspend-user.ts
index c2f3d72438..adaa7b86ce 100644
--- a/packages/backend/src/server/api/endpoints/admin/suspend-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/suspend-user.ts
@@ -1,10 +1,10 @@
-import define from '../../define';
-import deleteFollowing from '@/services/following/delete';
-import { Users, Followings, Notifications } from '@/models/index';
-import { User } from '@/models/entities/user';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { doPostSuspend } from '@/services/suspend-user';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import deleteFollowing from '@/services/following/delete.js';
+import { Users, Followings, Notifications } from '@/models/index.js';
+import { User } from '@/models/entities/user.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { doPostSuspend } from '@/services/suspend-user.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts b/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts
index ddda5f48ab..4e6366aa18 100644
--- a/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Users } from '@/models/index';
-import { insertModerationLog } from '@/services/insert-moderation-log';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/unsuspend-user.ts b/packages/backend/src/server/api/endpoints/admin/unsuspend-user.ts
index 25a8f1a00a..3b9e0a94e0 100644
--- a/packages/backend/src/server/api/endpoints/admin/unsuspend-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/unsuspend-user.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { Users } from '@/models/index';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { doPostUnsuspend } from '@/services/unsuspend-user';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { doPostUnsuspend } from '@/services/unsuspend-user.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 509e120e79..123c89ed78 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
+import define from '../../define.js';
 import { getConnection } from 'typeorm';
-import { Meta } from '@/models/entities/meta';
-import { insertModerationLog } from '@/services/insert-moderation-log';
-import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits';
+import { Meta } from '@/models/entities/meta.js';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
+import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/admin/vacuum.ts b/packages/backend/src/server/api/endpoints/admin/vacuum.ts
index 8ce352bffd..4c04e019da 100644
--- a/packages/backend/src/server/api/endpoints/admin/vacuum.ts
+++ b/packages/backend/src/server/api/endpoints/admin/vacuum.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
+import define from '../../define.js';
 import { getConnection } from 'typeorm';
-import { insertModerationLog } from '@/services/insert-moderation-log';
+import { insertModerationLog } from '@/services/insert-moderation-log.js';
 
 export const meta = {
 	tags: ['admin'],
diff --git a/packages/backend/src/server/api/endpoints/announcements.ts b/packages/backend/src/server/api/endpoints/announcements.ts
index 78a924fe5e..bba66e98cf 100644
--- a/packages/backend/src/server/api/endpoints/announcements.ts
+++ b/packages/backend/src/server/api/endpoints/announcements.ts
@@ -1,6 +1,6 @@
-import define from '../define';
-import { Announcements, AnnouncementReads } from '@/models/index';
-import { makePaginationQuery } from '../common/make-pagination-query';
+import define from '../define.js';
+import { Announcements, AnnouncementReads } from '@/models/index.js';
+import { makePaginationQuery } from '../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['meta'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/create.ts b/packages/backend/src/server/api/endpoints/antennas/create.ts
index 272ebddd4b..92cbba817e 100644
--- a/packages/backend/src/server/api/endpoints/antennas/create.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/create.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { genId } from '@/misc/gen-id';
-import { Antennas, UserLists, UserGroupJoinings } from '@/models/index';
-import { ApiError } from '../../error';
-import { publishInternalEvent } from '@/services/stream';
+import define from '../../define.js';
+import { genId } from '@/misc/gen-id.js';
+import { Antennas, UserLists, UserGroupJoinings } from '@/models/index.js';
+import { ApiError } from '../../error.js';
+import { publishInternalEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['antennas'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/delete.ts b/packages/backend/src/server/api/endpoints/antennas/delete.ts
index 247d4af16c..4e6b8b3d2e 100644
--- a/packages/backend/src/server/api/endpoints/antennas/delete.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/delete.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Antennas } from '@/models/index';
-import { publishInternalEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Antennas } from '@/models/index.js';
+import { publishInternalEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['antennas'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/list.ts b/packages/backend/src/server/api/endpoints/antennas/list.ts
index 59d75d80f5..accca5de76 100644
--- a/packages/backend/src/server/api/endpoints/antennas/list.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/list.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Antennas } from '@/models/index';
+import define from '../../define.js';
+import { Antennas } from '@/models/index.js';
 
 export const meta = {
 	tags: ['antennas', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/notes.ts b/packages/backend/src/server/api/endpoints/antennas/notes.ts
index 74f0d8d88f..7b1b20668e 100644
--- a/packages/backend/src/server/api/endpoints/antennas/notes.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/notes.ts
@@ -1,11 +1,11 @@
-import define from '../../define';
-import readNote from '@/services/note/read';
-import { Antennas, Notes, AntennaNotes } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { ApiError } from '../../error';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import readNote from '@/services/note/read.js';
+import { Antennas, Notes, AntennaNotes } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { ApiError } from '../../error.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['antennas', 'account', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/show.ts b/packages/backend/src/server/api/endpoints/antennas/show.ts
index 8428844c15..36c4da81b7 100644
--- a/packages/backend/src/server/api/endpoints/antennas/show.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/show.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Antennas } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Antennas } from '@/models/index.js';
 
 export const meta = {
 	tags: ['antennas', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/antennas/update.ts b/packages/backend/src/server/api/endpoints/antennas/update.ts
index 0b8e864b4d..a99964555b 100644
--- a/packages/backend/src/server/api/endpoints/antennas/update.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/update.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Antennas, UserLists, UserGroupJoinings } from '@/models/index';
-import { publishInternalEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Antennas, UserLists, UserGroupJoinings } from '@/models/index.js';
+import { publishInternalEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['antennas'],
diff --git a/packages/backend/src/server/api/endpoints/ap/get.ts b/packages/backend/src/server/api/endpoints/ap/get.ts
index a60ff00ecd..0cbe7ebc67 100644
--- a/packages/backend/src/server/api/endpoints/ap/get.ts
+++ b/packages/backend/src/server/api/endpoints/ap/get.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import Resolver from '@/remote/activitypub/resolver';
-import { ApiError } from '../../error';
+import define from '../../define.js';
+import Resolver from '@/remote/activitypub/resolver.js';
+import { ApiError } from '../../error.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/ap/show.ts b/packages/backend/src/server/api/endpoints/ap/show.ts
index 8f71e84a15..7595c38e8a 100644
--- a/packages/backend/src/server/api/endpoints/ap/show.ts
+++ b/packages/backend/src/server/api/endpoints/ap/show.ts
@@ -1,17 +1,17 @@
-import define from '../../define';
-import config from '@/config/index';
-import { createPerson } from '@/remote/activitypub/models/person';
-import { createNote } from '@/remote/activitypub/models/note';
-import Resolver from '@/remote/activitypub/resolver';
-import { ApiError } from '../../error';
-import { extractDbHost } from '@/misc/convert-host';
-import { Users, Notes } from '@/models/index';
-import { Note } from '@/models/entities/note';
-import { User } from '@/models/entities/user';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { isActor, isPost, getApId } from '@/remote/activitypub/type';
+import define from '../../define.js';
+import config from '@/config/index.js';
+import { createPerson } from '@/remote/activitypub/models/person.js';
+import { createNote } from '@/remote/activitypub/models/note.js';
+import Resolver from '@/remote/activitypub/resolver.js';
+import { ApiError } from '../../error.js';
+import { extractDbHost } from '@/misc/convert-host.js';
+import { Users, Notes } from '@/models/index.js';
+import { Note } from '@/models/entities/note.js';
+import { User } from '@/models/entities/user.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { isActor, isPost, getApId } from '@/remote/activitypub/type.js';
 import ms from 'ms';
-import { SchemaType } from '@/misc/schema';
+import { SchemaType } from '@/misc/schema.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/app/create.ts b/packages/backend/src/server/api/endpoints/app/create.ts
index 6e8d2b2abd..e0cf8632fb 100644
--- a/packages/backend/src/server/api/endpoints/app/create.ts
+++ b/packages/backend/src/server/api/endpoints/app/create.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { Apps } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { unique } from '@/prelude/array';
-import { secureRndstr } from '@/misc/secure-rndstr';
+import define from '../../define.js';
+import { Apps } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { unique } from '@/prelude/array.js';
+import { secureRndstr } from '@/misc/secure-rndstr.js';
 
 export const meta = {
 	tags: ['app'],
diff --git a/packages/backend/src/server/api/endpoints/app/show.ts b/packages/backend/src/server/api/endpoints/app/show.ts
index 6d75294e84..54e714e193 100644
--- a/packages/backend/src/server/api/endpoints/app/show.ts
+++ b/packages/backend/src/server/api/endpoints/app/show.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Apps } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Apps } from '@/models/index.js';
 
 export const meta = {
 	tags: ['app'],
diff --git a/packages/backend/src/server/api/endpoints/auth/accept.ts b/packages/backend/src/server/api/endpoints/auth/accept.ts
index 775c26818b..0760eef52b 100644
--- a/packages/backend/src/server/api/endpoints/auth/accept.ts
+++ b/packages/backend/src/server/api/endpoints/auth/accept.ts
@@ -1,9 +1,9 @@
-import * as crypto from 'crypto';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { AuthSessions, AccessTokens, Apps } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { secureRndstr } from '@/misc/secure-rndstr';
+import * as crypto from 'node:crypto';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { AuthSessions, AccessTokens, Apps } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { secureRndstr } from '@/misc/secure-rndstr.js';
 
 export const meta = {
 	tags: ['auth'],
diff --git a/packages/backend/src/server/api/endpoints/auth/session/generate.ts b/packages/backend/src/server/api/endpoints/auth/session/generate.ts
index ba0356431f..bd571327d2 100644
--- a/packages/backend/src/server/api/endpoints/auth/session/generate.ts
+++ b/packages/backend/src/server/api/endpoints/auth/session/generate.ts
@@ -1,9 +1,9 @@
 import { v4 as uuid } from 'uuid';
-import config from '@/config/index';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { Apps, AuthSessions } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import config from '@/config/index.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { Apps, AuthSessions } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['auth'],
diff --git a/packages/backend/src/server/api/endpoints/auth/session/show.ts b/packages/backend/src/server/api/endpoints/auth/session/show.ts
index 701cc9237d..d40c9363c6 100644
--- a/packages/backend/src/server/api/endpoints/auth/session/show.ts
+++ b/packages/backend/src/server/api/endpoints/auth/session/show.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { AuthSessions } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { AuthSessions } from '@/models/index.js';
 
 export const meta = {
 	tags: ['auth'],
diff --git a/packages/backend/src/server/api/endpoints/auth/session/userkey.ts b/packages/backend/src/server/api/endpoints/auth/session/userkey.ts
index fa04610ce0..b699c6fa25 100644
--- a/packages/backend/src/server/api/endpoints/auth/session/userkey.ts
+++ b/packages/backend/src/server/api/endpoints/auth/session/userkey.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { Apps, AuthSessions, AccessTokens, Users } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { Apps, AuthSessions, AccessTokens, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['auth'],
diff --git a/packages/backend/src/server/api/endpoints/blocking/create.ts b/packages/backend/src/server/api/endpoints/blocking/create.ts
index cf09ca00ba..c5e73c0131 100644
--- a/packages/backend/src/server/api/endpoints/blocking/create.ts
+++ b/packages/backend/src/server/api/endpoints/blocking/create.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import create from '@/services/blocking/create';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Blockings, NoteWatchings, Users } from '@/models/index';
+import create from '@/services/blocking/create.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Blockings, NoteWatchings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/blocking/delete.ts b/packages/backend/src/server/api/endpoints/blocking/delete.ts
index 6e9fead113..a45547290c 100644
--- a/packages/backend/src/server/api/endpoints/blocking/delete.ts
+++ b/packages/backend/src/server/api/endpoints/blocking/delete.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import deleteBlocking from '@/services/blocking/delete';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Blockings, Users } from '@/models/index';
+import deleteBlocking from '@/services/blocking/delete.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Blockings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/blocking/list.ts b/packages/backend/src/server/api/endpoints/blocking/list.ts
index bbae0fe661..29095ebe21 100644
--- a/packages/backend/src/server/api/endpoints/blocking/list.ts
+++ b/packages/backend/src/server/api/endpoints/blocking/list.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Blockings } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Blockings } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/channels/create.ts b/packages/backend/src/server/api/endpoints/channels/create.ts
index 0491f7638f..16456b9c01 100644
--- a/packages/backend/src/server/api/endpoints/channels/create.ts
+++ b/packages/backend/src/server/api/endpoints/channels/create.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Channels, DriveFiles } from '@/models/index';
-import { Channel } from '@/models/entities/channel';
-import { genId } from '@/misc/gen-id';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Channels, DriveFiles } from '@/models/index.js';
+import { Channel } from '@/models/entities/channel.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/featured.ts b/packages/backend/src/server/api/endpoints/channels/featured.ts
index c1e4ba2dec..73980c0fad 100644
--- a/packages/backend/src/server/api/endpoints/channels/featured.ts
+++ b/packages/backend/src/server/api/endpoints/channels/featured.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Channels } from '@/models/index';
+import define from '../../define.js';
+import { Channels } from '@/models/index.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/follow.ts b/packages/backend/src/server/api/endpoints/channels/follow.ts
index c831db4b8c..4372c283cb 100644
--- a/packages/backend/src/server/api/endpoints/channels/follow.ts
+++ b/packages/backend/src/server/api/endpoints/channels/follow.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Channels, ChannelFollowings } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Channels, ChannelFollowings } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/followed.ts b/packages/backend/src/server/api/endpoints/channels/followed.ts
index 79b12514ff..e4aa4d1614 100644
--- a/packages/backend/src/server/api/endpoints/channels/followed.ts
+++ b/packages/backend/src/server/api/endpoints/channels/followed.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Channels, ChannelFollowings } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Channels, ChannelFollowings } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['channels', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/channels/owned.ts b/packages/backend/src/server/api/endpoints/channels/owned.ts
index c4c250fab1..ed7e41cac2 100644
--- a/packages/backend/src/server/api/endpoints/channels/owned.ts
+++ b/packages/backend/src/server/api/endpoints/channels/owned.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Channels } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Channels } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['channels', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/channels/show.ts b/packages/backend/src/server/api/endpoints/channels/show.ts
index 48d9fe29c1..ea4e013073 100644
--- a/packages/backend/src/server/api/endpoints/channels/show.ts
+++ b/packages/backend/src/server/api/endpoints/channels/show.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Channels } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Channels } from '@/models/index.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/timeline.ts b/packages/backend/src/server/api/endpoints/channels/timeline.ts
index 6f35fd966c..b57468d047 100644
--- a/packages/backend/src/server/api/endpoints/channels/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/channels/timeline.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Notes, Channels } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { activeUsersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Notes, Channels } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['notes', 'channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/unfollow.ts b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
index e6524bf555..32beb24d6f 100644
--- a/packages/backend/src/server/api/endpoints/channels/unfollow.ts
+++ b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Channels, ChannelFollowings } from '@/models/index';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Channels, ChannelFollowings } from '@/models/index.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/channels/update.ts b/packages/backend/src/server/api/endpoints/channels/update.ts
index 3ee36d97ec..2f2b4aeeb2 100644
--- a/packages/backend/src/server/api/endpoints/channels/update.ts
+++ b/packages/backend/src/server/api/endpoints/channels/update.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Channels, DriveFiles } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Channels, DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['channels'],
diff --git a/packages/backend/src/server/api/endpoints/charts/active-users.ts b/packages/backend/src/server/api/endpoints/charts/active-users.ts
index dcb155b937..97f7885dbe 100644
--- a/packages/backend/src/server/api/endpoints/charts/active-users.ts
+++ b/packages/backend/src/server/api/endpoints/charts/active-users.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { activeUsersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { activeUsersChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/charts/ap-request.ts b/packages/backend/src/server/api/endpoints/charts/ap-request.ts
index cb8046236a..4477bfc987 100644
--- a/packages/backend/src/server/api/endpoints/charts/ap-request.ts
+++ b/packages/backend/src/server/api/endpoints/charts/ap-request.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { apRequestChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { apRequestChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts'],
diff --git a/packages/backend/src/server/api/endpoints/charts/drive.ts b/packages/backend/src/server/api/endpoints/charts/drive.ts
index 35ec62e671..fd6033392f 100644
--- a/packages/backend/src/server/api/endpoints/charts/drive.ts
+++ b/packages/backend/src/server/api/endpoints/charts/drive.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { driveChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { driveChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'drive'],
diff --git a/packages/backend/src/server/api/endpoints/charts/federation.ts b/packages/backend/src/server/api/endpoints/charts/federation.ts
index 07492cf6c2..f842f574ec 100644
--- a/packages/backend/src/server/api/endpoints/charts/federation.ts
+++ b/packages/backend/src/server/api/endpoints/charts/federation.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { federationChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { federationChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts'],
diff --git a/packages/backend/src/server/api/endpoints/charts/hashtag.ts b/packages/backend/src/server/api/endpoints/charts/hashtag.ts
index 537bb45bf1..01407defdd 100644
--- a/packages/backend/src/server/api/endpoints/charts/hashtag.ts
+++ b/packages/backend/src/server/api/endpoints/charts/hashtag.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { hashtagChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { hashtagChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'hashtags'],
diff --git a/packages/backend/src/server/api/endpoints/charts/instance.ts b/packages/backend/src/server/api/endpoints/charts/instance.ts
index cd5c044ad9..2d12951c6c 100644
--- a/packages/backend/src/server/api/endpoints/charts/instance.ts
+++ b/packages/backend/src/server/api/endpoints/charts/instance.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { instanceChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { instanceChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts'],
diff --git a/packages/backend/src/server/api/endpoints/charts/notes.ts b/packages/backend/src/server/api/endpoints/charts/notes.ts
index b30f0894c2..b6089f67ef 100644
--- a/packages/backend/src/server/api/endpoints/charts/notes.ts
+++ b/packages/backend/src/server/api/endpoints/charts/notes.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { notesChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { notesChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/charts/user/drive.ts b/packages/backend/src/server/api/endpoints/charts/user/drive.ts
index cc1aac5fea..e5db7131a8 100644
--- a/packages/backend/src/server/api/endpoints/charts/user/drive.ts
+++ b/packages/backend/src/server/api/endpoints/charts/user/drive.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { perUserDriveChart } from '@/services/chart/index';
+import define from '../../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { perUserDriveChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'drive', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/charts/user/following.ts b/packages/backend/src/server/api/endpoints/charts/user/following.ts
index 1b68bdca1c..9b72de745d 100644
--- a/packages/backend/src/server/api/endpoints/charts/user/following.ts
+++ b/packages/backend/src/server/api/endpoints/charts/user/following.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { perUserFollowingChart } from '@/services/chart/index';
+import define from '../../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { perUserFollowingChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'users', 'following'],
diff --git a/packages/backend/src/server/api/endpoints/charts/user/notes.ts b/packages/backend/src/server/api/endpoints/charts/user/notes.ts
index 55e6368187..7cc6cbf316 100644
--- a/packages/backend/src/server/api/endpoints/charts/user/notes.ts
+++ b/packages/backend/src/server/api/endpoints/charts/user/notes.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { perUserNotesChart } from '@/services/chart/index';
+import define from '../../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { perUserNotesChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'users', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/charts/user/reactions.ts b/packages/backend/src/server/api/endpoints/charts/user/reactions.ts
index f72424d2cf..5c58a7f152 100644
--- a/packages/backend/src/server/api/endpoints/charts/user/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/charts/user/reactions.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { perUserReactionsChart } from '@/services/chart/index';
+import define from '../../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { perUserReactionsChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'users', 'reactions'],
diff --git a/packages/backend/src/server/api/endpoints/charts/users.ts b/packages/backend/src/server/api/endpoints/charts/users.ts
index 2dfdfefd78..49c762b2e4 100644
--- a/packages/backend/src/server/api/endpoints/charts/users.ts
+++ b/packages/backend/src/server/api/endpoints/charts/users.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getJsonSchema } from '@/services/chart/core';
-import { usersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { getJsonSchema } from '@/services/chart/core.js';
+import { usersChart } from '@/services/chart/index.js';
 
 export const meta = {
 	tags: ['charts', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/clips/add-note.ts b/packages/backend/src/server/api/endpoints/clips/add-note.ts
index 7700382bd3..c630302b98 100644
--- a/packages/backend/src/server/api/endpoints/clips/add-note.ts
+++ b/packages/backend/src/server/api/endpoints/clips/add-note.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ClipNotes, Clips } from '@/models/index';
-import { ApiError } from '../../error';
-import { genId } from '@/misc/gen-id';
-import { getNote } from '../../common/getters';
+import define from '../../define.js';
+import { ClipNotes, Clips } from '@/models/index.js';
+import { ApiError } from '../../error.js';
+import { genId } from '@/misc/gen-id.js';
+import { getNote } from '../../common/getters.js';
 
 export const meta = {
 	tags: ['account', 'notes', 'clips'],
diff --git a/packages/backend/src/server/api/endpoints/clips/create.ts b/packages/backend/src/server/api/endpoints/clips/create.ts
index 86164e69af..531847d15c 100644
--- a/packages/backend/src/server/api/endpoints/clips/create.ts
+++ b/packages/backend/src/server/api/endpoints/clips/create.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { genId } from '@/misc/gen-id';
-import { Clips } from '@/models/index';
+import define from '../../define.js';
+import { genId } from '@/misc/gen-id.js';
+import { Clips } from '@/models/index.js';
 
 export const meta = {
 	tags: ['clips'],
diff --git a/packages/backend/src/server/api/endpoints/clips/delete.ts b/packages/backend/src/server/api/endpoints/clips/delete.ts
index 7f712450ae..675db1d57f 100644
--- a/packages/backend/src/server/api/endpoints/clips/delete.ts
+++ b/packages/backend/src/server/api/endpoints/clips/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Clips } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Clips } from '@/models/index.js';
 
 export const meta = {
 	tags: ['clips'],
diff --git a/packages/backend/src/server/api/endpoints/clips/list.ts b/packages/backend/src/server/api/endpoints/clips/list.ts
index b8ee72af7c..1c955d64fc 100644
--- a/packages/backend/src/server/api/endpoints/clips/list.ts
+++ b/packages/backend/src/server/api/endpoints/clips/list.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Clips } from '@/models/index';
+import define from '../../define.js';
+import { Clips } from '@/models/index.js';
 
 export const meta = {
 	tags: ['clips', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/clips/notes.ts b/packages/backend/src/server/api/endpoints/clips/notes.ts
index 698b9d428d..0f0eac4c4b 100644
--- a/packages/backend/src/server/api/endpoints/clips/notes.ts
+++ b/packages/backend/src/server/api/endpoints/clips/notes.ts
@@ -1,10 +1,10 @@
-import define from '../../define';
-import { ClipNotes, Clips, Notes } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { ApiError } from '../../error';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { ClipNotes, Clips, Notes } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { ApiError } from '../../error.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['account', 'notes', 'clips'],
diff --git a/packages/backend/src/server/api/endpoints/clips/show.ts b/packages/backend/src/server/api/endpoints/clips/show.ts
index e1add3a0a6..0a3b25c94e 100644
--- a/packages/backend/src/server/api/endpoints/clips/show.ts
+++ b/packages/backend/src/server/api/endpoints/clips/show.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Clips } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Clips } from '@/models/index.js';
 
 export const meta = {
 	tags: ['clips', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/clips/update.ts b/packages/backend/src/server/api/endpoints/clips/update.ts
index 97134ac79a..0ac5ccd047 100644
--- a/packages/backend/src/server/api/endpoints/clips/update.ts
+++ b/packages/backend/src/server/api/endpoints/clips/update.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Clips } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Clips } from '@/models/index.js';
 
 export const meta = {
 	tags: ['clips'],
diff --git a/packages/backend/src/server/api/endpoints/drive.ts b/packages/backend/src/server/api/endpoints/drive.ts
index 5ff383f0f4..c599d96ca4 100644
--- a/packages/backend/src/server/api/endpoints/drive.ts
+++ b/packages/backend/src/server/api/endpoints/drive.ts
@@ -1,6 +1,6 @@
-import define from '../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { DriveFiles } from '@/models/index';
+import define from '../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files.ts b/packages/backend/src/server/api/endpoints/drive/files.ts
index 998d964bc3..40e6c16c9c 100644
--- a/packages/backend/src/server/api/endpoints/drive/files.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { DriveFiles } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { DriveFiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts b/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
index 440dc856fd..3c68beee17 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/attached-notes.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFiles, Notes } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFiles, Notes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/check-existence.ts b/packages/backend/src/server/api/endpoints/drive/files/check-existence.ts
index 853723016e..7e5cb2498e 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/check-existence.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/check-existence.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/create.ts b/packages/backend/src/server/api/endpoints/drive/files/create.ts
index 89c6c99f36..b6a2cf7200 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/create.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/create.ts
@@ -1,10 +1,10 @@
 import ms from 'ms';
-import { addFile } from '@/services/drive/add-file';
-import define from '../../../define';
-import { apiLogger } from '../../../logger';
-import { ApiError } from '../../../error';
-import { DriveFiles } from '@/models/index';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits';
+import { addFile } from '@/services/drive/add-file.js';
+import define from '../../../define.js';
+import { apiLogger } from '../../../logger.js';
+import { ApiError } from '../../../error.js';
+import { DriveFiles } from '@/models/index.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/delete.ts b/packages/backend/src/server/api/endpoints/drive/files/delete.ts
index 8ae7e7effe..5f565a63fb 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/delete.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/delete.ts
@@ -1,8 +1,8 @@
-import { deleteFile } from '@/services/drive/delete-file';
-import { publishDriveStream } from '@/services/stream';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFiles } from '@/models/index';
+import { deleteFile } from '@/services/drive/delete-file.js';
+import { publishDriveStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/find-by-hash.ts b/packages/backend/src/server/api/endpoints/drive/files/find-by-hash.ts
index feb738be0d..e45ec633d3 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/find-by-hash.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/find-by-hash.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/find.ts b/packages/backend/src/server/api/endpoints/drive/files/find.ts
index 5419ba9196..974fc9fbad 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/find.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/find.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/drive/files/show.ts b/packages/backend/src/server/api/endpoints/drive/files/show.ts
index 932e692c4c..181365c7e6 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/show.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/show.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFile } from '@/models/entities/drive-file';
-import { DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/update.ts b/packages/backend/src/server/api/endpoints/drive/files/update.ts
index 3972e56084..ab8e4aeeb2 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/update.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/update.ts
@@ -1,8 +1,8 @@
-import { publishDriveStream } from '@/services/stream';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFiles, DriveFolders } from '@/models/index';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits';
+import { publishDriveStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFiles, DriveFolders } from '@/models/index.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts b/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
index 5c688e883a..3bfecac802 100644
--- a/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
+++ b/packages/backend/src/server/api/endpoints/drive/files/upload-from-url.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import { uploadFromUrl } from '@/services/drive/upload-from-url';
-import define from '../../../define';
-import { DriveFiles } from '@/models/index';
-import { publishMainStream } from '@/services/stream';
-import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits';
+import { uploadFromUrl } from '@/services/drive/upload-from-url.js';
+import define from '../../../define.js';
+import { DriveFiles } from '@/models/index.js';
+import { publishMainStream } from '@/services/stream.js';
+import { DB_MAX_IMAGE_COMMENT_LENGTH } from '@/misc/hard-limits.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders.ts b/packages/backend/src/server/api/endpoints/drive/folders.ts
index 4d8bc32dd7..d4d530ba9e 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { DriveFolders } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { DriveFolders } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders/create.ts b/packages/backend/src/server/api/endpoints/drive/folders/create.ts
index 994c537f9f..4ae10f0621 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders/create.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders/create.ts
@@ -1,8 +1,8 @@
-import { publishDriveStream } from '@/services/stream';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFolders } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import { publishDriveStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFolders } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders/delete.ts b/packages/backend/src/server/api/endpoints/drive/folders/delete.ts
index 58b9919595..4994615cc6 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders/delete.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders/delete.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { publishDriveStream } from '@/services/stream';
-import { ApiError } from '../../../error';
-import { DriveFolders, DriveFiles } from '@/models/index';
+import define from '../../../define.js';
+import { publishDriveStream } from '@/services/stream.js';
+import { ApiError } from '../../../error.js';
+import { DriveFolders, DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders/find.ts b/packages/backend/src/server/api/endpoints/drive/folders/find.ts
index 333502f706..9bf0e3d61b 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders/find.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders/find.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { DriveFolders } from '@/models/index';
+import define from '../../../define.js';
+import { DriveFolders } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders/show.ts b/packages/backend/src/server/api/endpoints/drive/folders/show.ts
index 4bbd2dcf11..f09816d57a 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders/show.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders/show.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFolders } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFolders } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/folders/update.ts b/packages/backend/src/server/api/endpoints/drive/folders/update.ts
index a4393d99b0..c020b243ef 100644
--- a/packages/backend/src/server/api/endpoints/drive/folders/update.ts
+++ b/packages/backend/src/server/api/endpoints/drive/folders/update.ts
@@ -1,7 +1,7 @@
-import { publishDriveStream } from '@/services/stream';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { DriveFolders } from '@/models/index';
+import { publishDriveStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { DriveFolders } from '@/models/index.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/drive/stream.ts b/packages/backend/src/server/api/endpoints/drive/stream.ts
index 9d5cb02c70..99e8d024fb 100644
--- a/packages/backend/src/server/api/endpoints/drive/stream.ts
+++ b/packages/backend/src/server/api/endpoints/drive/stream.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { DriveFiles } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { DriveFiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['drive'],
diff --git a/packages/backend/src/server/api/endpoints/email-address/available.ts b/packages/backend/src/server/api/endpoints/email-address/available.ts
index 8fee4ce509..07064ce9fa 100644
--- a/packages/backend/src/server/api/endpoints/email-address/available.ts
+++ b/packages/backend/src/server/api/endpoints/email-address/available.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { validateEmailForAccount } from '@/services/validate-email-for-account';
+import define from '../../define.js';
+import { validateEmailForAccount } from '@/services/validate-email-for-account.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/endpoint.ts b/packages/backend/src/server/api/endpoints/endpoint.ts
index 7c528114f2..9db140183c 100644
--- a/packages/backend/src/server/api/endpoints/endpoint.ts
+++ b/packages/backend/src/server/api/endpoints/endpoint.ts
@@ -1,5 +1,5 @@
-import define from '../define';
-import endpoints from '../endpoints';
+import define from '../define.js';
+import endpoints from '../endpoints.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/endpoints.ts b/packages/backend/src/server/api/endpoints/endpoints.ts
index ef6efc6fb3..b20da96eb3 100644
--- a/packages/backend/src/server/api/endpoints/endpoints.ts
+++ b/packages/backend/src/server/api/endpoints/endpoints.ts
@@ -1,5 +1,5 @@
-import define from '../define';
-import endpoints from '../endpoints';
+import define from '../define.js';
+import endpoints from '../endpoints.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/export-custom-emojis.ts b/packages/backend/src/server/api/endpoints/export-custom-emojis.ts
index 3bffbc82bd..bc8d2e2ac0 100644
--- a/packages/backend/src/server/api/endpoints/export-custom-emojis.ts
+++ b/packages/backend/src/server/api/endpoints/export-custom-emojis.ts
@@ -1,5 +1,5 @@
-import define from '../define';
-import { createExportCustomEmojisJob } from '@/queue/index';
+import define from '../define.js';
+import { createExportCustomEmojisJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/federation/followers.ts b/packages/backend/src/server/api/endpoints/federation/followers.ts
index b716552322..7b1197d1e5 100644
--- a/packages/backend/src/server/api/endpoints/federation/followers.ts
+++ b/packages/backend/src/server/api/endpoints/federation/followers.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Followings } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Followings } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/federation/following.ts b/packages/backend/src/server/api/endpoints/federation/following.ts
index 373c432be5..ed1f142d88 100644
--- a/packages/backend/src/server/api/endpoints/federation/following.ts
+++ b/packages/backend/src/server/api/endpoints/federation/following.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Followings } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Followings } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/federation/instances.ts b/packages/backend/src/server/api/endpoints/federation/instances.ts
index fb25199c73..70fef051ba 100644
--- a/packages/backend/src/server/api/endpoints/federation/instances.ts
+++ b/packages/backend/src/server/api/endpoints/federation/instances.ts
@@ -1,7 +1,7 @@
-import config from '@/config/index';
-import define from '../../define';
-import { Instances } from '@/models/index';
-import { fetchMeta } from '@/misc/fetch-meta';
+import config from '@/config/index.js';
+import define from '../../define.js';
+import { Instances } from '@/models/index.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/federation/show-instance.ts b/packages/backend/src/server/api/endpoints/federation/show-instance.ts
index 590f8a7e86..5bfe43fc9c 100644
--- a/packages/backend/src/server/api/endpoints/federation/show-instance.ts
+++ b/packages/backend/src/server/api/endpoints/federation/show-instance.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Instances } from '@/models/index';
-import { toPuny } from '@/misc/convert-host';
+import define from '../../define.js';
+import { Instances } from '@/models/index.js';
+import { toPuny } from '@/misc/convert-host.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts b/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
index 59661ea7c0..409cc7695e 100644
--- a/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
+++ b/packages/backend/src/server/api/endpoints/federation/update-remote-user.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { getRemoteUser } from '../../common/getters';
-import { updatePerson } from '@/remote/activitypub/models/person';
+import define from '../../define.js';
+import { getRemoteUser } from '../../common/getters.js';
+import { updatePerson } from '@/remote/activitypub/models/person.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/federation/users.ts b/packages/backend/src/server/api/endpoints/federation/users.ts
index f35471f062..65ad9f88d3 100644
--- a/packages/backend/src/server/api/endpoints/federation/users.ts
+++ b/packages/backend/src/server/api/endpoints/federation/users.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Users } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['federation'],
diff --git a/packages/backend/src/server/api/endpoints/following/create.ts b/packages/backend/src/server/api/endpoints/following/create.ts
index a18c44a1d8..8758a64a39 100644
--- a/packages/backend/src/server/api/endpoints/following/create.ts
+++ b/packages/backend/src/server/api/endpoints/following/create.ts
@@ -1,10 +1,10 @@
 import ms from 'ms';
-import create from '@/services/following/create';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Followings, Users } from '@/models/index';
-import { IdentifiableError } from '@/misc/identifiable-error';
+import create from '@/services/following/create.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Followings, Users } from '@/models/index.js';
+import { IdentifiableError } from '@/misc/identifiable-error.js';
 
 export const meta = {
 	tags: ['following', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/following/delete.ts b/packages/backend/src/server/api/endpoints/following/delete.ts
index ec32c2c888..47efc59b81 100644
--- a/packages/backend/src/server/api/endpoints/following/delete.ts
+++ b/packages/backend/src/server/api/endpoints/following/delete.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import deleteFollowing from '@/services/following/delete';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Followings, Users } from '@/models/index';
+import deleteFollowing from '@/services/following/delete.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Followings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['following', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/following/invalidate.ts b/packages/backend/src/server/api/endpoints/following/invalidate.ts
index 137d366fce..24d8256ca6 100644
--- a/packages/backend/src/server/api/endpoints/following/invalidate.ts
+++ b/packages/backend/src/server/api/endpoints/following/invalidate.ts
@@ -1,9 +1,9 @@
-import * as ms from 'ms';
-import deleteFollowing from '@/services/following/delete';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Followings, Users } from '@/models/index';
+import ms from 'ms';
+import deleteFollowing from '@/services/following/delete.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Followings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['following', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/following/requests/accept.ts b/packages/backend/src/server/api/endpoints/following/requests/accept.ts
index adbbb3404a..e5df55375e 100644
--- a/packages/backend/src/server/api/endpoints/following/requests/accept.ts
+++ b/packages/backend/src/server/api/endpoints/following/requests/accept.ts
@@ -1,7 +1,7 @@
-import acceptFollowRequest from '@/services/following/requests/accept';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
+import acceptFollowRequest from '@/services/following/requests/accept.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
 
 export const meta = {
 	tags: ['following', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/following/requests/cancel.ts b/packages/backend/src/server/api/endpoints/following/requests/cancel.ts
index 5e949af9de..80d37fb075 100644
--- a/packages/backend/src/server/api/endpoints/following/requests/cancel.ts
+++ b/packages/backend/src/server/api/endpoints/following/requests/cancel.ts
@@ -1,9 +1,9 @@
-import cancelFollowRequest from '@/services/following/requests/cancel';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { Users } from '@/models/index';
-import { IdentifiableError } from '@/misc/identifiable-error';
+import cancelFollowRequest from '@/services/following/requests/cancel.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { Users } from '@/models/index.js';
+import { IdentifiableError } from '@/misc/identifiable-error.js';
 
 export const meta = {
 	tags: ['following', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/following/requests/list.ts b/packages/backend/src/server/api/endpoints/following/requests/list.ts
index 563223fcae..3b60b89b3c 100644
--- a/packages/backend/src/server/api/endpoints/following/requests/list.ts
+++ b/packages/backend/src/server/api/endpoints/following/requests/list.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { FollowRequests } from '@/models/index';
+import define from '../../../define.js';
+import { FollowRequests } from '@/models/index.js';
 
 export const meta = {
 	tags: ['following', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/following/requests/reject.ts b/packages/backend/src/server/api/endpoints/following/requests/reject.ts
index f1502eba13..cebe604284 100644
--- a/packages/backend/src/server/api/endpoints/following/requests/reject.ts
+++ b/packages/backend/src/server/api/endpoints/following/requests/reject.ts
@@ -1,7 +1,7 @@
-import { rejectFollowRequest } from '@/services/following/reject';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
+import { rejectFollowRequest } from '@/services/following/reject.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
 
 export const meta = {
 	tags: ['following', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/featured.ts b/packages/backend/src/server/api/endpoints/gallery/featured.ts
index ad994c386a..e6acd36911 100644
--- a/packages/backend/src/server/api/endpoints/gallery/featured.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/featured.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { GalleryPosts } from '@/models/index';
+import define from '../../define.js';
+import { GalleryPosts } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/popular.ts b/packages/backend/src/server/api/endpoints/gallery/popular.ts
index 9e5019ddef..c4c8982fcc 100644
--- a/packages/backend/src/server/api/endpoints/gallery/popular.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/popular.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { GalleryPosts } from '@/models/index';
+import define from '../../define.js';
+import { GalleryPosts } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts.ts b/packages/backend/src/server/api/endpoints/gallery/posts.ts
index 40c9efaf51..428ba9cc71 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { GalleryPosts } from '@/models/index';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { GalleryPosts } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/create.ts b/packages/backend/src/server/api/endpoints/gallery/posts/create.ts
index c963dc86d1..eb6c0f3eb1 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/create.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/create.ts
@@ -1,10 +1,10 @@
 import ms from 'ms';
-import define from '../../../define';
-import { DriveFiles, GalleryPosts } from '@/models/index';
-import { genId } from '../../../../../misc/gen-id';
-import { GalleryPost } from '@/models/entities/gallery-post';
-import { ApiError } from '../../../error';
-import { DriveFile } from '@/models/entities/drive-file';
+import define from '../../../define.js';
+import { DriveFiles, GalleryPosts } from '@/models/index.js';
+import { genId } from '../../../../../misc/gen-id.js';
+import { GalleryPost } from '@/models/entities/gallery-post.js';
+import { ApiError } from '../../../error.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/delete.ts b/packages/backend/src/server/api/endpoints/gallery/posts/delete.ts
index 7fafc9288a..f8bf785ee6 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/delete.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { GalleryPosts } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { GalleryPosts } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/like.ts b/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
index ca6c06cf9e..d154bfc3c6 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/like.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { GalleryPosts, GalleryLikes } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { GalleryPosts, GalleryLikes } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/show.ts b/packages/backend/src/server/api/endpoints/gallery/posts/show.ts
index 0f8f3a6068..5b4594070c 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/show.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/show.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { GalleryPosts } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { GalleryPosts } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts b/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
index 30ccaf167e..b00008a864 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/unlike.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { GalleryPosts, GalleryLikes } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { GalleryPosts, GalleryLikes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/gallery/posts/update.ts b/packages/backend/src/server/api/endpoints/gallery/posts/update.ts
index 2b2e26aa5d..123794d08c 100644
--- a/packages/backend/src/server/api/endpoints/gallery/posts/update.ts
+++ b/packages/backend/src/server/api/endpoints/gallery/posts/update.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import define from '../../../define';
-import { DriveFiles, GalleryPosts } from '@/models/index';
-import { GalleryPost } from '@/models/entities/gallery-post';
-import { ApiError } from '../../../error';
-import { DriveFile } from '@/models/entities/drive-file';
+import define from '../../../define.js';
+import { DriveFiles, GalleryPosts } from '@/models/index.js';
+import { GalleryPost } from '@/models/entities/gallery-post.js';
+import { ApiError } from '../../../error.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
 
 export const meta = {
 	tags: ['gallery'],
diff --git a/packages/backend/src/server/api/endpoints/get-online-users-count.ts b/packages/backend/src/server/api/endpoints/get-online-users-count.ts
index 374d819ce7..80a2334cfa 100644
--- a/packages/backend/src/server/api/endpoints/get-online-users-count.ts
+++ b/packages/backend/src/server/api/endpoints/get-online-users-count.ts
@@ -1,7 +1,7 @@
-import { USER_ONLINE_THRESHOLD } from '@/const';
-import { Users } from '@/models/index';
+import { USER_ONLINE_THRESHOLD } from '@/const.js';
+import { Users } from '@/models/index.js';
 import { MoreThan } from 'typeorm';
-import define from '../define';
+import define from '../define.js';
 
 export const meta = {
 	tags: ['meta'],
diff --git a/packages/backend/src/server/api/endpoints/hashtags/list.ts b/packages/backend/src/server/api/endpoints/hashtags/list.ts
index 3bd5305bd4..50e36386cf 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/list.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/list.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Hashtags } from '@/models/index';
+import define from '../../define.js';
+import { Hashtags } from '@/models/index.js';
 
 export const meta = {
 	tags: ['hashtags'],
diff --git a/packages/backend/src/server/api/endpoints/hashtags/search.ts b/packages/backend/src/server/api/endpoints/hashtags/search.ts
index 2af6b6d77c..c289844775 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/search.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/search.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Hashtags } from '@/models/index';
+import define from '../../define.js';
+import { Hashtags } from '@/models/index.js';
 
 export const meta = {
 	tags: ['hashtags'],
diff --git a/packages/backend/src/server/api/endpoints/hashtags/show.ts b/packages/backend/src/server/api/endpoints/hashtags/show.ts
index 0770882141..6e6afa4f13 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/show.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/show.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Hashtags } from '@/models/index';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Hashtags } from '@/models/index.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
 
 export const meta = {
 	tags: ['hashtags'],
diff --git a/packages/backend/src/server/api/endpoints/hashtags/trend.ts b/packages/backend/src/server/api/endpoints/hashtags/trend.ts
index 6da5b90b28..9cdbc8941c 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/trend.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/trend.ts
@@ -1,10 +1,10 @@
 import { Brackets } from 'typeorm';
-import define from '../../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Notes } from '@/models/index';
-import { Note } from '@/models/entities/note';
-import { safeForSql } from '@/misc/safe-for-sql';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
+import define from '../../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Notes } from '@/models/index.js';
+import { Note } from '@/models/entities/note.js';
+import { safeForSql } from '@/misc/safe-for-sql.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
 
 /*
 トレンドに載るためには「『直近a分間のユニーク投稿数が今からa分前～今からb分前の間のユニーク投稿数のn倍以上』のハッシュタグの上位5位以内に入る」ことが必要
diff --git a/packages/backend/src/server/api/endpoints/hashtags/users.ts b/packages/backend/src/server/api/endpoints/hashtags/users.ts
index ff06d925dd..a5df21a7e3 100644
--- a/packages/backend/src/server/api/endpoints/hashtags/users.ts
+++ b/packages/backend/src/server/api/endpoints/hashtags/users.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Users } from '@/models/index';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/i.ts b/packages/backend/src/server/api/endpoints/i.ts
index f9c58c2479..5b1ad2b098 100644
--- a/packages/backend/src/server/api/endpoints/i.ts
+++ b/packages/backend/src/server/api/endpoints/i.ts
@@ -1,5 +1,5 @@
-import define from '../define';
-import { Users } from '@/models/index';
+import define from '../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/done.ts b/packages/backend/src/server/api/endpoints/i/2fa/done.ts
index 1646b7bd89..70478430db 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/done.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/done.ts
@@ -1,6 +1,6 @@
 import * as speakeasy from 'speakeasy';
-import define from '../../../define';
-import { UserProfiles } from '@/models/index';
+import define from '../../../define.js';
+import { UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts b/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
index 52a0afcbfd..f33237c8bf 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/key-done.ts
@@ -1,16 +1,16 @@
-import * as bcrypt from 'bcryptjs';
-import { promisify } from 'util';
+import bcrypt from 'bcryptjs';
+import { promisify } from 'node:util';
 import * as cbor from 'cbor';
-import define from '../../../define';
+import define from '../../../define.js';
 import {
 	UserProfiles,
 	UserSecurityKeys,
 	AttestationChallenges,
 	Users,
-} from '@/models/index';
-import config from '@/config/index';
-import { procedures, hash } from '../../../2fa';
-import { publishMainStream } from '@/services/stream';
+} from '@/models/index.js';
+import config from '@/config/index.js';
+import { procedures, hash } from '../../../2fa.js';
+import { publishMainStream } from '@/services/stream.js';
 
 const cborDecodeFirst = promisify(cbor.decodeFirst) as any;
 const rpIdHashReal = hash(Buffer.from(config.hostname, 'utf-8'));
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/password-less.ts b/packages/backend/src/server/api/endpoints/i/2fa/password-less.ts
index d9d2ec66c1..4bfa24f97f 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/password-less.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/password-less.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { UserProfiles } from '@/models/index';
+import define from '../../../define.js';
+import { UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts b/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
index 86fc4fdffb..0c4c99271e 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/register-key.ts
@@ -1,10 +1,10 @@
-import * as bcrypt from 'bcryptjs';
-import define from '../../../define';
-import { UserProfiles, AttestationChallenges } from '@/models/index';
-import { promisify } from 'util';
-import * as crypto from 'crypto';
-import { genId } from '@/misc/gen-id';
-import { hash } from '../../../2fa';
+import bcrypt from 'bcryptjs';
+import define from '../../../define.js';
+import { UserProfiles, AttestationChallenges } from '@/models/index.js';
+import { promisify } from 'node:util';
+import * as crypto from 'node:crypto';
+import { genId } from '@/misc/gen-id.js';
+import { hash } from '../../../2fa.js';
 
 const randomBytes = promisify(crypto.randomBytes);
 
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/register.ts b/packages/backend/src/server/api/endpoints/i/2fa/register.ts
index e550698abb..7951e393b8 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/register.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/register.ts
@@ -1,9 +1,9 @@
-import * as bcrypt from 'bcryptjs';
+import bcrypt from 'bcryptjs';
 import * as speakeasy from 'speakeasy';
 import * as QRCode from 'qrcode';
-import config from '@/config/index';
-import define from '../../../define';
-import { UserProfiles } from '@/models/index';
+import config from '@/config/index.js';
+import define from '../../../define.js';
+import { UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts b/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
index 0469912340..2b69b1f8c3 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/remove-key.ts
@@ -1,7 +1,7 @@
-import * as bcrypt from 'bcryptjs';
-import define from '../../../define';
-import { UserProfiles, UserSecurityKeys, Users } from '@/models/index';
-import { publishMainStream } from '@/services/stream';
+import bcrypt from 'bcryptjs';
+import define from '../../../define.js';
+import { UserProfiles, UserSecurityKeys, Users } from '@/models/index.js';
+import { publishMainStream } from '@/services/stream.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts b/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
index c1ca445825..c5633f68b1 100644
--- a/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
+++ b/packages/backend/src/server/api/endpoints/i/2fa/unregister.ts
@@ -1,6 +1,6 @@
-import * as bcrypt from 'bcryptjs';
-import define from '../../../define';
-import { UserProfiles } from '@/models/index';
+import bcrypt from 'bcryptjs';
+import define from '../../../define.js';
+import { UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/apps.ts b/packages/backend/src/server/api/endpoints/i/apps.ts
index 0fe3db2d9f..eca9558847 100644
--- a/packages/backend/src/server/api/endpoints/i/apps.ts
+++ b/packages/backend/src/server/api/endpoints/i/apps.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { AccessTokens } from '@/models/index';
+import define from '../../define.js';
+import { AccessTokens } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/authorized-apps.ts b/packages/backend/src/server/api/endpoints/i/authorized-apps.ts
index e2f5ceb7e1..3301808e75 100644
--- a/packages/backend/src/server/api/endpoints/i/authorized-apps.ts
+++ b/packages/backend/src/server/api/endpoints/i/authorized-apps.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { AccessTokens, Apps } from '@/models/index';
+import define from '../../define.js';
+import { AccessTokens, Apps } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/change-password.ts b/packages/backend/src/server/api/endpoints/i/change-password.ts
index e68d18b86d..16509d2dcf 100644
--- a/packages/backend/src/server/api/endpoints/i/change-password.ts
+++ b/packages/backend/src/server/api/endpoints/i/change-password.ts
@@ -1,6 +1,6 @@
-import * as bcrypt from 'bcryptjs';
-import define from '../../define';
-import { UserProfiles } from '@/models/index';
+import bcrypt from 'bcryptjs';
+import define from '../../define.js';
+import { UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/delete-account.ts b/packages/backend/src/server/api/endpoints/i/delete-account.ts
index 188d2257aa..8cb6b6a631 100644
--- a/packages/backend/src/server/api/endpoints/i/delete-account.ts
+++ b/packages/backend/src/server/api/endpoints/i/delete-account.ts
@@ -1,9 +1,9 @@
-import * as bcrypt from 'bcryptjs';
-import define from '../../define';
-import { UserProfiles, Users } from '@/models/index';
-import { doPostSuspend } from '@/services/suspend-user';
-import { publishUserEvent } from '@/services/stream';
-import { createDeleteAccountJob } from '@/queue';
+import bcrypt from 'bcryptjs';
+import define from '../../define.js';
+import { UserProfiles, Users } from '@/models/index.js';
+import { doPostSuspend } from '@/services/suspend-user.js';
+import { publishUserEvent } from '@/services/stream.js';
+import { createDeleteAccountJob } from '@/queue/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/export-blocking.ts b/packages/backend/src/server/api/endpoints/i/export-blocking.ts
index 808b546bdb..aed4c2e0a3 100644
--- a/packages/backend/src/server/api/endpoints/i/export-blocking.ts
+++ b/packages/backend/src/server/api/endpoints/i/export-blocking.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createExportBlockingJob } from '@/queue/index';
+import define from '../../define.js';
+import { createExportBlockingJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/export-following.ts b/packages/backend/src/server/api/endpoints/i/export-following.ts
index 10f8ee9ab2..058d77b3c2 100644
--- a/packages/backend/src/server/api/endpoints/i/export-following.ts
+++ b/packages/backend/src/server/api/endpoints/i/export-following.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createExportFollowingJob } from '@/queue/index';
+import define from '../../define.js';
+import { createExportFollowingJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/export-mute.ts b/packages/backend/src/server/api/endpoints/i/export-mute.ts
index ab39508534..c0216fac0c 100644
--- a/packages/backend/src/server/api/endpoints/i/export-mute.ts
+++ b/packages/backend/src/server/api/endpoints/i/export-mute.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createExportMuteJob } from '@/queue/index';
+import define from '../../define.js';
+import { createExportMuteJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/export-notes.ts b/packages/backend/src/server/api/endpoints/i/export-notes.ts
index 770444d68b..4b85a45554 100644
--- a/packages/backend/src/server/api/endpoints/i/export-notes.ts
+++ b/packages/backend/src/server/api/endpoints/i/export-notes.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createExportNotesJob } from '@/queue/index';
+import define from '../../define.js';
+import { createExportNotesJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/export-user-lists.ts b/packages/backend/src/server/api/endpoints/i/export-user-lists.ts
index c0d9d924bd..fa5c1f5e5a 100644
--- a/packages/backend/src/server/api/endpoints/i/export-user-lists.ts
+++ b/packages/backend/src/server/api/endpoints/i/export-user-lists.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createExportUserListsJob } from '@/queue/index';
+import define from '../../define.js';
+import { createExportUserListsJob } from '@/queue/index.js';
 import ms from 'ms';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/favorites.ts b/packages/backend/src/server/api/endpoints/i/favorites.ts
index d6c12582d0..3c420e4d0f 100644
--- a/packages/backend/src/server/api/endpoints/i/favorites.ts
+++ b/packages/backend/src/server/api/endpoints/i/favorites.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { NoteFavorites } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { NoteFavorites } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'notes', 'favorites'],
diff --git a/packages/backend/src/server/api/endpoints/i/gallery/likes.ts b/packages/backend/src/server/api/endpoints/i/gallery/likes.ts
index 173a502622..a38383f30e 100644
--- a/packages/backend/src/server/api/endpoints/i/gallery/likes.ts
+++ b/packages/backend/src/server/api/endpoints/i/gallery/likes.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { GalleryLikes } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { GalleryLikes } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'gallery'],
diff --git a/packages/backend/src/server/api/endpoints/i/gallery/posts.ts b/packages/backend/src/server/api/endpoints/i/gallery/posts.ts
index 31e9636f84..b4edb5f73d 100644
--- a/packages/backend/src/server/api/endpoints/i/gallery/posts.ts
+++ b/packages/backend/src/server/api/endpoints/i/gallery/posts.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { GalleryPosts } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { GalleryPosts } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'gallery'],
diff --git a/packages/backend/src/server/api/endpoints/i/get-word-muted-notes-count.ts b/packages/backend/src/server/api/endpoints/i/get-word-muted-notes-count.ts
index c760dd0e23..bc3e0aff47 100644
--- a/packages/backend/src/server/api/endpoints/i/get-word-muted-notes-count.ts
+++ b/packages/backend/src/server/api/endpoints/i/get-word-muted-notes-count.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { MutedNotes } from '@/models/index';
+import define from '../../define.js';
+import { MutedNotes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/i/import-blocking.ts b/packages/backend/src/server/api/endpoints/i/import-blocking.ts
index e9cf6e562e..c70704f9a8 100644
--- a/packages/backend/src/server/api/endpoints/i/import-blocking.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-blocking.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { createImportBlockingJob } from '@/queue/index';
+import define from '../../define.js';
+import { createImportBlockingJob } from '@/queue/index.js';
 import ms from 'ms';
-import { ApiError } from '../../error';
-import { DriveFiles } from '@/models/index';
+import { ApiError } from '../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	secure: true,
diff --git a/packages/backend/src/server/api/endpoints/i/import-following.ts b/packages/backend/src/server/api/endpoints/i/import-following.ts
index d9c831daf8..7e9175cbf8 100644
--- a/packages/backend/src/server/api/endpoints/i/import-following.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-following.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { createImportFollowingJob } from '@/queue/index';
+import define from '../../define.js';
+import { createImportFollowingJob } from '@/queue/index.js';
 import ms from 'ms';
-import { ApiError } from '../../error';
-import { DriveFiles } from '@/models/index';
+import { ApiError } from '../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	secure: true,
diff --git a/packages/backend/src/server/api/endpoints/i/import-muting.ts b/packages/backend/src/server/api/endpoints/i/import-muting.ts
index ac61a6c852..abbf07212e 100644
--- a/packages/backend/src/server/api/endpoints/i/import-muting.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-muting.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { createImportMutingJob } from '@/queue/index';
+import define from '../../define.js';
+import { createImportMutingJob } from '@/queue/index.js';
 import ms from 'ms';
-import { ApiError } from '../../error';
-import { DriveFiles } from '@/models/index';
+import { ApiError } from '../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	secure: true,
diff --git a/packages/backend/src/server/api/endpoints/i/import-user-lists.ts b/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
index 68f2b377a9..be162817f1 100644
--- a/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
+++ b/packages/backend/src/server/api/endpoints/i/import-user-lists.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { createImportUserListsJob } from '@/queue/index';
+import define from '../../define.js';
+import { createImportUserListsJob } from '@/queue/index.js';
 import ms from 'ms';
-import { ApiError } from '../../error';
-import { DriveFiles } from '@/models/index';
+import { ApiError } from '../../error.js';
+import { DriveFiles } from '@/models/index.js';
 
 export const meta = {
 	secure: true,
diff --git a/packages/backend/src/server/api/endpoints/i/notifications.ts b/packages/backend/src/server/api/endpoints/i/notifications.ts
index cecaa8ac44..c6291211e4 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications.ts
@@ -1,10 +1,10 @@
-import { readNotification } from '../../common/read-notification';
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateMutedInstanceNotificationQuery } from '../../common/generate-muted-instance-query';
-import { Notifications, Followings, Mutings, Users } from '@/models/index';
-import { notificationTypes } from '@/types';
-import read from '@/services/note/read';
+import { readNotification } from '../../common/read-notification.js';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateMutedInstanceNotificationQuery } from '../../common/generate-muted-instance-query.js';
+import { Notifications, Followings, Mutings, Users } from '@/models/index.js';
+import { notificationTypes } from '@/types.js';
+import read from '@/services/note/read.js';
 import { Brackets } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/i/page-likes.ts b/packages/backend/src/server/api/endpoints/i/page-likes.ts
index d3b68acdc5..71e326e2f0 100644
--- a/packages/backend/src/server/api/endpoints/i/page-likes.ts
+++ b/packages/backend/src/server/api/endpoints/i/page-likes.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { PageLikes } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { PageLikes } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'pages'],
diff --git a/packages/backend/src/server/api/endpoints/i/pages.ts b/packages/backend/src/server/api/endpoints/i/pages.ts
index 09cff4a0fb..f28aed3fd4 100644
--- a/packages/backend/src/server/api/endpoints/i/pages.ts
+++ b/packages/backend/src/server/api/endpoints/i/pages.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Pages } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Pages } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'pages'],
diff --git a/packages/backend/src/server/api/endpoints/i/pin.ts b/packages/backend/src/server/api/endpoints/i/pin.ts
index a4dd64564a..67b7026be1 100644
--- a/packages/backend/src/server/api/endpoints/i/pin.ts
+++ b/packages/backend/src/server/api/endpoints/i/pin.ts
@@ -1,7 +1,7 @@
-import { addPinned } from '@/services/i/pin';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Users } from '@/models/index';
+import { addPinned } from '@/services/i/pin.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/i/read-all-messaging-messages.ts b/packages/backend/src/server/api/endpoints/i/read-all-messaging-messages.ts
index e6eb8d7ef0..2e291a34a0 100644
--- a/packages/backend/src/server/api/endpoints/i/read-all-messaging-messages.ts
+++ b/packages/backend/src/server/api/endpoints/i/read-all-messaging-messages.ts
@@ -1,6 +1,6 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../define';
-import { MessagingMessages, UserGroupJoinings } from '@/models/index';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../define.js';
+import { MessagingMessages, UserGroupJoinings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account', 'messaging'],
diff --git a/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts b/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts
index 12038999ae..49f3deb331 100644
--- a/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts
+++ b/packages/backend/src/server/api/endpoints/i/read-all-unread-notes.ts
@@ -1,6 +1,6 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../define';
-import { NoteUnreads } from '@/models/index';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../define.js';
+import { NoteUnreads } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/i/read-announcement.ts b/packages/backend/src/server/api/endpoints/i/read-announcement.ts
index 2d8c723e4e..647fa77fa4 100644
--- a/packages/backend/src/server/api/endpoints/i/read-announcement.ts
+++ b/packages/backend/src/server/api/endpoints/i/read-announcement.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { genId } from '@/misc/gen-id';
-import { AnnouncementReads, Announcements, Users } from '@/models/index';
-import { publishMainStream } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { genId } from '@/misc/gen-id.js';
+import { AnnouncementReads, Announcements, Users } from '@/models/index.js';
+import { publishMainStream } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/i/regenerate-token.ts b/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
index 1462b902c4..771c98b212 100644
--- a/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
+++ b/packages/backend/src/server/api/endpoints/i/regenerate-token.ts
@@ -1,8 +1,8 @@
-import * as bcrypt from 'bcryptjs';
-import { publishMainStream, publishUserEvent } from '@/services/stream';
-import generateUserToken from '../../common/generate-native-user-token';
-import define from '../../define';
-import { Users, UserProfiles } from '@/models/index';
+import bcrypt from 'bcryptjs';
+import { publishMainStream, publishUserEvent } from '@/services/stream.js';
+import generateUserToken from '../../common/generate-native-user-token.js';
+import define from '../../define.js';
+import { Users, UserProfiles } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/get-all.ts b/packages/backend/src/server/api/endpoints/i/registry/get-all.ts
index c371da87d8..d0b16dbc48 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/get-all.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/get-all.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/get-detail.ts b/packages/backend/src/server/api/endpoints/i/registry/get-detail.ts
index bd243946b0..cc5d5a8c6f 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/get-detail.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/get-detail.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/get.ts b/packages/backend/src/server/api/endpoints/i/registry/get.ts
index 2bc6975bb3..a79319744c 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/get.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/get.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/keys-with-type.ts b/packages/backend/src/server/api/endpoints/i/registry/keys-with-type.ts
index 78bb9dd348..ac209c06a6 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/keys-with-type.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/keys-with-type.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/keys.ts b/packages/backend/src/server/api/endpoints/i/registry/keys.ts
index 5f627125d5..5ea1a9d344 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/keys.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/keys.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/remove.ts b/packages/backend/src/server/api/endpoints/i/registry/remove.ts
index 6a005d10d4..92473654c6 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/remove.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/remove.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/scopes.ts b/packages/backend/src/server/api/endpoints/i/registry/scopes.ts
index 09de7125c9..de4b313e25 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/scopes.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/scopes.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/registry/set.ts b/packages/backend/src/server/api/endpoints/i/registry/set.ts
index 28d9555b1c..d380b428a3 100644
--- a/packages/backend/src/server/api/endpoints/i/registry/set.ts
+++ b/packages/backend/src/server/api/endpoints/i/registry/set.ts
@@ -1,7 +1,7 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../../define';
-import { RegistryItems } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { RegistryItems } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/revoke-token.ts b/packages/backend/src/server/api/endpoints/i/revoke-token.ts
index b889e795be..b957fd0796 100644
--- a/packages/backend/src/server/api/endpoints/i/revoke-token.ts
+++ b/packages/backend/src/server/api/endpoints/i/revoke-token.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { AccessTokens } from '@/models/index';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import { AccessTokens } from '@/models/index.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/signin-history.ts b/packages/backend/src/server/api/endpoints/i/signin-history.ts
index f7a98a2332..ca37411662 100644
--- a/packages/backend/src/server/api/endpoints/i/signin-history.ts
+++ b/packages/backend/src/server/api/endpoints/i/signin-history.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Signins } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Signins } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/unpin.ts b/packages/backend/src/server/api/endpoints/i/unpin.ts
index 5ab1e95c59..9912689da5 100644
--- a/packages/backend/src/server/api/endpoints/i/unpin.ts
+++ b/packages/backend/src/server/api/endpoints/i/unpin.ts
@@ -1,7 +1,7 @@
-import { removePinned } from '@/services/i/pin';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Users } from '@/models/index';
+import { removePinned } from '@/services/i/pin.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/i/update-email.ts b/packages/backend/src/server/api/endpoints/i/update-email.ts
index 21a2081836..389ff1b81d 100644
--- a/packages/backend/src/server/api/endpoints/i/update-email.ts
+++ b/packages/backend/src/server/api/endpoints/i/update-email.ts
@@ -1,13 +1,13 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../define';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../define.js';
 import rndstr from 'rndstr';
-import config from '@/config/index';
+import config from '@/config/index.js';
 import ms from 'ms';
-import * as bcrypt from 'bcryptjs';
-import { Users, UserProfiles } from '@/models/index';
-import { sendEmail } from '@/services/send-email';
-import { ApiError } from '../../error';
-import { validateEmailForAccount } from '@/services/validate-email-for-account';
+import bcrypt from 'bcryptjs';
+import { Users, UserProfiles } from '@/models/index.js';
+import { sendEmail } from '@/services/send-email.js';
+import { ApiError } from '../../error.js';
+import { validateEmailForAccount } from '@/services/validate-email-for-account.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/i/update.ts b/packages/backend/src/server/api/endpoints/i/update.ts
index 2ea6714068..d8dff4f49f 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -1,19 +1,19 @@
-const RE2 = require('re2');
+import RE2 from 're2';
 import * as mfm from 'mfm-js';
-import { publishMainStream, publishUserEvent } from '@/services/stream';
-import acceptAllFollowRequests from '@/services/following/requests/accept-all';
-import { publishToFollowers } from '@/services/i/update';
-import define from '../../define';
-import { extractCustomEmojisFromMfm } from '@/misc/extract-custom-emojis-from-mfm';
-import { extractHashtags } from '@/misc/extract-hashtags';
-import { updateUsertags } from '@/services/update-hashtag';
-import { ApiError } from '../../error';
-import { Users, DriveFiles, UserProfiles, Pages } from '@/models/index';
-import { User } from '@/models/entities/user';
-import { UserProfile } from '@/models/entities/user-profile';
-import { notificationTypes } from '@/types';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
-import { langmap } from '@/misc/langmap';
+import { publishMainStream, publishUserEvent } from '@/services/stream.js';
+import acceptAllFollowRequests from '@/services/following/requests/accept-all.js';
+import { publishToFollowers } from '@/services/i/update.js';
+import define from '../../define.js';
+import { extractCustomEmojisFromMfm } from '@/misc/extract-custom-emojis-from-mfm.js';
+import { extractHashtags } from '@/misc/extract-hashtags.js';
+import { updateUsertags } from '@/services/update-hashtag.js';
+import { ApiError } from '../../error.js';
+import { Users, DriveFiles, UserProfiles, Pages } from '@/models/index.js';
+import { User } from '@/models/entities/user.js';
+import { UserProfile } from '@/models/entities/user-profile.js';
+import { notificationTypes } from '@/types.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
+import { langmap } from '@/misc/langmap.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/i/user-group-invites.ts b/packages/backend/src/server/api/endpoints/i/user-group-invites.ts
index a026d8d669..1d7e4a16b3 100644
--- a/packages/backend/src/server/api/endpoints/i/user-group-invites.ts
+++ b/packages/backend/src/server/api/endpoints/i/user-group-invites.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { UserGroupInvitations } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { UserGroupInvitations } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['account', 'groups'],
diff --git a/packages/backend/src/server/api/endpoints/messaging/history.ts b/packages/backend/src/server/api/endpoints/messaging/history.ts
index cb27f37fbb..14de4e1028 100644
--- a/packages/backend/src/server/api/endpoints/messaging/history.ts
+++ b/packages/backend/src/server/api/endpoints/messaging/history.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { MessagingMessage } from '@/models/entities/messaging-message';
-import { MessagingMessages, Mutings, UserGroupJoinings } from '@/models/index';
+import define from '../../define.js';
+import { MessagingMessage } from '@/models/entities/messaging-message.js';
+import { MessagingMessages, Mutings, UserGroupJoinings } from '@/models/index.js';
 import { Brackets } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/messaging/messages.ts b/packages/backend/src/server/api/endpoints/messaging/messages.ts
index a21f8d8fc1..49ace21600 100644
--- a/packages/backend/src/server/api/endpoints/messaging/messages.ts
+++ b/packages/backend/src/server/api/endpoints/messaging/messages.ts
@@ -1,10 +1,10 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { MessagingMessages, UserGroups, UserGroupJoinings, Users } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { MessagingMessages, UserGroups, UserGroupJoinings, Users } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 import { Brackets } from 'typeorm';
-import { readUserMessagingMessage, readGroupMessagingMessage, deliverReadActivity } from '../../common/read-messaging-message';
+import { readUserMessagingMessage, readGroupMessagingMessage, deliverReadActivity } from '../../common/read-messaging-message.js';
 
 export const meta = {
 	tags: ['messaging'],
diff --git a/packages/backend/src/server/api/endpoints/messaging/messages/create.ts b/packages/backend/src/server/api/endpoints/messaging/messages/create.ts
index c2f9e71b5c..a9b926c4fb 100644
--- a/packages/backend/src/server/api/endpoints/messaging/messages/create.ts
+++ b/packages/backend/src/server/api/endpoints/messaging/messages/create.ts
@@ -1,10 +1,10 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { MessagingMessages, DriveFiles, UserGroups, UserGroupJoinings, Blockings } from '@/models/index';
-import { User } from '@/models/entities/user';
-import { UserGroup } from '@/models/entities/user-group';
-import { createMessage } from '@/services/messages/create';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { MessagingMessages, DriveFiles, UserGroups, UserGroupJoinings, Blockings } from '@/models/index.js';
+import { User } from '@/models/entities/user.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { createMessage } from '@/services/messages/create.js';
 
 export const meta = {
 	tags: ['messaging'],
diff --git a/packages/backend/src/server/api/endpoints/messaging/messages/delete.ts b/packages/backend/src/server/api/endpoints/messaging/messages/delete.ts
index 8f5d6da665..a0945af510 100644
--- a/packages/backend/src/server/api/endpoints/messaging/messages/delete.ts
+++ b/packages/backend/src/server/api/endpoints/messaging/messages/delete.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
+import define from '../../../define.js';
 import ms from 'ms';
-import { ApiError } from '../../../error';
-import { MessagingMessages } from '@/models/index';
-import { deleteMessage } from '@/services/messages/delete';
+import { ApiError } from '../../../error.js';
+import { MessagingMessages } from '@/models/index.js';
+import { deleteMessage } from '@/services/messages/delete.js';
 
 export const meta = {
 	tags: ['messaging'],
diff --git a/packages/backend/src/server/api/endpoints/messaging/messages/read.ts b/packages/backend/src/server/api/endpoints/messaging/messages/read.ts
index 2a18d9c379..8d38e509ac 100644
--- a/packages/backend/src/server/api/endpoints/messaging/messages/read.ts
+++ b/packages/backend/src/server/api/endpoints/messaging/messages/read.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { MessagingMessages } from '@/models/index';
-import { readUserMessagingMessage, readGroupMessagingMessage } from '../../../common/read-messaging-message';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { MessagingMessages } from '@/models/index.js';
+import { readUserMessagingMessage, readGroupMessagingMessage } from '../../../common/read-messaging-message.js';
 
 export const meta = {
 	tags: ['messaging'],
diff --git a/packages/backend/src/server/api/endpoints/meta.ts b/packages/backend/src/server/api/endpoints/meta.ts
index afc6d2805f..df959cbb72 100644
--- a/packages/backend/src/server/api/endpoints/meta.ts
+++ b/packages/backend/src/server/api/endpoints/meta.ts
@@ -1,10 +1,10 @@
-import config from '@/config/index';
-import define from '../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Ads, Emojis, Users } from '@/models/index';
-import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits';
+import config from '@/config/index.js';
+import define from '../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Ads, Emojis, Users } from '@/models/index.js';
+import { DB_MAX_NOTE_TEXT_LENGTH } from '@/misc/hard-limits.js';
 import { MoreThan } from 'typeorm';
-import { MAX_NOTE_TEXT_LENGTH } from '@/const';
+import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
 
 export const meta = {
 	tags: ['meta'],
diff --git a/packages/backend/src/server/api/endpoints/miauth/gen-token.ts b/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
index 56fc459d7e..73ecdaeb03 100644
--- a/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
+++ b/packages/backend/src/server/api/endpoints/miauth/gen-token.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { AccessTokens } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { secureRndstr } from '@/misc/secure-rndstr';
+import define from '../../define.js';
+import { AccessTokens } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { secureRndstr } from '@/misc/secure-rndstr.js';
 
 export const meta = {
 	tags: ['auth'],
diff --git a/packages/backend/src/server/api/endpoints/mute/create.ts b/packages/backend/src/server/api/endpoints/mute/create.ts
index b8439cd3f6..0178aab143 100644
--- a/packages/backend/src/server/api/endpoints/mute/create.ts
+++ b/packages/backend/src/server/api/endpoints/mute/create.ts
@@ -1,10 +1,10 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { genId } from '@/misc/gen-id';
-import { Mutings, NoteWatchings } from '@/models/index';
-import { Muting } from '@/models/entities/muting';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { genId } from '@/misc/gen-id.js';
+import { Mutings, NoteWatchings } from '@/models/index.js';
+import { Muting } from '@/models/entities/muting.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/mute/delete.ts b/packages/backend/src/server/api/endpoints/mute/delete.ts
index ff66aa26cf..a8cf2a6667 100644
--- a/packages/backend/src/server/api/endpoints/mute/delete.ts
+++ b/packages/backend/src/server/api/endpoints/mute/delete.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { Mutings } from '@/models/index';
-import { publishUserEvent } from '@/services/stream';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { Mutings } from '@/models/index.js';
+import { publishUserEvent } from '@/services/stream.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/mute/list.ts b/packages/backend/src/server/api/endpoints/mute/list.ts
index a728affe05..31283cf4c1 100644
--- a/packages/backend/src/server/api/endpoints/mute/list.ts
+++ b/packages/backend/src/server/api/endpoints/mute/list.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Mutings } from '@/models/index';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Mutings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/my/apps.ts b/packages/backend/src/server/api/endpoints/my/apps.ts
index 5d08f34dac..85b75c15df 100644
--- a/packages/backend/src/server/api/endpoints/my/apps.ts
+++ b/packages/backend/src/server/api/endpoints/my/apps.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Apps } from '@/models/index';
+import define from '../../define.js';
+import { Apps } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account', 'app'],
diff --git a/packages/backend/src/server/api/endpoints/notes.ts b/packages/backend/src/server/api/endpoints/notes.ts
index 28c49b0e63..07862a7bfb 100644
--- a/packages/backend/src/server/api/endpoints/notes.ts
+++ b/packages/backend/src/server/api/endpoints/notes.ts
@@ -1,6 +1,6 @@
-import define from '../define';
-import { makePaginationQuery } from '../common/make-pagination-query';
-import { Notes } from '@/models/index';
+import define from '../define.js';
+import { makePaginationQuery } from '../common/make-pagination-query.js';
+import { Notes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/children.ts b/packages/backend/src/server/api/endpoints/notes/children.ts
index 43471b8ed5..38f2c12d2d 100644
--- a/packages/backend/src/server/api/endpoints/notes/children.ts
+++ b/packages/backend/src/server/api/endpoints/notes/children.ts
@@ -1,11 +1,11 @@
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
 import { Brackets } from 'typeorm';
-import { Notes } from '@/models/index';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
-import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query';
+import { Notes } from '@/models/index.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
+import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/clips.ts b/packages/backend/src/server/api/endpoints/notes/clips.ts
index 2209894a96..9a863b7148 100644
--- a/packages/backend/src/server/api/endpoints/notes/clips.ts
+++ b/packages/backend/src/server/api/endpoints/notes/clips.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ClipNotes, Clips } from '@/models/index';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
+import define from '../../define.js';
+import { ClipNotes, Clips } from '@/models/index.js';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
 import { In } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/notes/conversation.ts b/packages/backend/src/server/api/endpoints/notes/conversation.ts
index c785496f2e..2552c0f99d 100644
--- a/packages/backend/src/server/api/endpoints/notes/conversation.ts
+++ b/packages/backend/src/server/api/endpoints/notes/conversation.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getNote } from '../../common/getters';
-import { Note } from '@/models/entities/note';
-import { Notes } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getNote } from '../../common/getters.js';
+import { Note } from '@/models/entities/note.js';
+import { Notes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index 6bf696b9d1..e4a9b28891 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -1,14 +1,14 @@
 import ms from 'ms';
-import create from '@/services/note/create';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { User } from '@/models/entities/user';
-import { Users, DriveFiles, Notes, Channels, Blockings } from '@/models/index';
-import { DriveFile } from '@/models/entities/drive-file';
-import { Note } from '@/models/entities/note';
-import { noteVisibilities } from '../../../../types';
-import { Channel } from '@/models/entities/channel';
-import { MAX_NOTE_TEXT_LENGTH } from '@/const';
+import create from '@/services/note/create.js';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { User } from '@/models/entities/user.js';
+import { Users, DriveFiles, Notes, Channels, Blockings } from '@/models/index.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
+import { Note } from '@/models/entities/note.js';
+import { noteVisibilities } from '../../../../types.js';
+import { Channel } from '@/models/entities/channel.js';
+import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/delete.ts b/packages/backend/src/server/api/endpoints/notes/delete.ts
index 6084c93240..22ff2275ca 100644
--- a/packages/backend/src/server/api/endpoints/notes/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/delete.ts
@@ -1,9 +1,9 @@
-import deleteNote from '@/services/note/delete';
-import define from '../../define';
+import deleteNote from '@/services/note/delete.js';
+import define from '../../define.js';
 import ms from 'ms';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
-import { Users } from '@/models/index';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/favorites/create.ts b/packages/backend/src/server/api/endpoints/notes/favorites/create.ts
index eaf2b1ac0f..bcc2c44c02 100644
--- a/packages/backend/src/server/api/endpoints/notes/favorites/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/favorites/create.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getNote } from '../../../common/getters';
-import { NoteFavorites } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getNote } from '../../../common/getters.js';
+import { NoteFavorites } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['notes', 'favorites'],
diff --git a/packages/backend/src/server/api/endpoints/notes/favorites/delete.ts b/packages/backend/src/server/api/endpoints/notes/favorites/delete.ts
index 1a64fc430e..d41fab22d3 100644
--- a/packages/backend/src/server/api/endpoints/notes/favorites/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/favorites/delete.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getNote } from '../../../common/getters';
-import { NoteFavorites } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getNote } from '../../../common/getters.js';
+import { NoteFavorites } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes', 'favorites'],
diff --git a/packages/backend/src/server/api/endpoints/notes/featured.ts b/packages/backend/src/server/api/endpoints/notes/featured.ts
index 11738cbe26..913a499314 100644
--- a/packages/backend/src/server/api/endpoints/notes/featured.ts
+++ b/packages/backend/src/server/api/endpoints/notes/featured.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { Notes } from '@/models/index';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { Notes } from '@/models/index.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/global-timeline.ts b/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
index 54cf51c135..a5cd5de63e 100644
--- a/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/global-timeline.ts
@@ -1,14 +1,14 @@
-import define from '../../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { ApiError } from '../../error';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Notes } from '@/models/index';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query';
-import { activeUsersChart } from '@/services/chart/index';
-import { generateRepliesQuery } from '../../common/generate-replies-query';
-import { generateMutedNoteQuery } from '../../common/generate-muted-note-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { ApiError } from '../../error.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Notes } from '@/models/index.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
+import { generateRepliesQuery } from '../../common/generate-replies-query.js';
+import { generateMutedNoteQuery } from '../../common/generate-muted-note-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
index f75cbeb008..96e9b5d0e7 100644
--- a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
@@ -1,17 +1,17 @@
-import define from '../../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { ApiError } from '../../error';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Followings, Notes } from '@/models/index';
+import define from '../../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { ApiError } from '../../error.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Followings, Notes } from '@/models/index.js';
 import { Brackets } from 'typeorm';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query';
-import { activeUsersChart } from '@/services/chart/index';
-import { generateRepliesQuery } from '../../common/generate-replies-query';
-import { generateMutedNoteQuery } from '../../common/generate-muted-note-query';
-import { generateChannelQuery } from '../../common/generate-channel-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
+import { generateRepliesQuery } from '../../common/generate-replies-query.js';
+import { generateMutedNoteQuery } from '../../common/generate-muted-note-query.js';
+import { generateChannelQuery } from '../../common/generate-channel-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
index 9793919487..5f21f0e238 100644
--- a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
@@ -1,16 +1,16 @@
-import define from '../../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { ApiError } from '../../error';
-import { Notes } from '@/models/index';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { activeUsersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { ApiError } from '../../error.js';
+import { Notes } from '@/models/index.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
 import { Brackets } from 'typeorm';
-import { generateRepliesQuery } from '../../common/generate-replies-query';
-import { generateMutedNoteQuery } from '../../common/generate-muted-note-query';
-import { generateChannelQuery } from '../../common/generate-channel-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import { generateRepliesQuery } from '../../common/generate-replies-query.js';
+import { generateMutedNoteQuery } from '../../common/generate-muted-note-query.js';
+import { generateChannelQuery } from '../../common/generate-channel-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/mentions.ts b/packages/backend/src/server/api/endpoints/notes/mentions.ts
index 41f2ad5244..269eaa9324 100644
--- a/packages/backend/src/server/api/endpoints/notes/mentions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/mentions.ts
@@ -1,12 +1,12 @@
-import define from '../../define';
-import read from '@/services/note/read';
-import { Notes, Followings } from '@/models/index';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import read from '@/services/note/read.js';
+import { Notes, Followings } from '@/models/index.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 import { Brackets } from 'typeorm';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
-import { generateMutedNoteThreadQuery } from '../../common/generate-muted-note-thread-query';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
+import { generateMutedNoteThreadQuery } from '../../common/generate-muted-note-thread-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/polls/recommendation.ts b/packages/backend/src/server/api/endpoints/notes/polls/recommendation.ts
index 0f2d4699de..bdd1aeecd4 100644
--- a/packages/backend/src/server/api/endpoints/notes/polls/recommendation.ts
+++ b/packages/backend/src/server/api/endpoints/notes/polls/recommendation.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { Polls, Mutings, Notes, PollVotes } from '@/models/index';
+import define from '../../../define.js';
+import { Polls, Mutings, Notes, PollVotes } from '@/models/index.js';
 import { Brackets, In } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/notes/polls/vote.ts b/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
index d889ba6f1f..ef52d03664 100644
--- a/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
+++ b/packages/backend/src/server/api/endpoints/notes/polls/vote.ts
@@ -1,16 +1,16 @@
-import { publishNoteStream } from '@/services/stream';
-import { createNotification } from '@/services/create-notification';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getNote } from '../../../common/getters';
-import { deliver } from '@/queue/index';
-import { renderActivity } from '@/remote/activitypub/renderer/index';
-import renderVote from '@/remote/activitypub/renderer/vote';
-import { deliverQuestionUpdate } from '@/services/note/polls/update';
-import { PollVotes, NoteWatchings, Users, Polls, Blockings } from '@/models/index';
+import { publishNoteStream } from '@/services/stream.js';
+import { createNotification } from '@/services/create-notification.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getNote } from '../../../common/getters.js';
+import { deliver } from '@/queue/index.js';
+import { renderActivity } from '@/remote/activitypub/renderer/index.js';
+import renderVote from '@/remote/activitypub/renderer/vote.js';
+import { deliverQuestionUpdate } from '@/services/note/polls/update.js';
+import { PollVotes, NoteWatchings, Users, Polls, Blockings } from '@/models/index.js';
 import { Not } from 'typeorm';
-import { IRemoteUser } from '@/models/entities/user';
-import { genId } from '@/misc/gen-id';
+import { IRemoteUser } from '@/models/entities/user.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions.ts b/packages/backend/src/server/api/endpoints/notes/reactions.ts
index 746344df3b..629cf014bb 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions.ts
@@ -1,9 +1,9 @@
-import define from '../../define';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
-import { NoteReactions } from '@/models/index';
+import define from '../../define.js';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
+import { NoteReactions } from '@/models/index.js';
 import { DeepPartial } from 'typeorm';
-import { NoteReaction } from '@/models/entities/note-reaction';
+import { NoteReaction } from '@/models/entities/note-reaction.js';
 
 export const meta = {
 	tags: ['notes', 'reactions'],
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions/create.ts b/packages/backend/src/server/api/endpoints/notes/reactions/create.ts
index 9edbabc469..07e52a9266 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions/create.ts
@@ -1,7 +1,7 @@
-import createReaction from '@/services/note/reaction/create';
-import define from '../../../define';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
+import createReaction from '@/services/note/reaction/create.js';
+import define from '../../../define.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['reactions', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts b/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
index d5e2e138a8..639ecae264 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions/delete.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
+import define from '../../../define.js';
 import ms from 'ms';
-import deleteReaction from '@/services/note/reaction/delete';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
+import deleteReaction from '@/services/note/reaction/delete.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['reactions', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/renotes.ts b/packages/backend/src/server/api/endpoints/notes/renotes.ts
index a964a0c766..52440f8a61 100644
--- a/packages/backend/src/server/api/endpoints/notes/renotes.ts
+++ b/packages/backend/src/server/api/endpoints/notes/renotes.ts
@@ -1,11 +1,11 @@
-import define from '../../define';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Notes } from '@/models/index';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Notes } from '@/models/index.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/replies.ts b/packages/backend/src/server/api/endpoints/notes/replies.ts
index 78559abd5a..10b33ea8c9 100644
--- a/packages/backend/src/server/api/endpoints/notes/replies.ts
+++ b/packages/backend/src/server/api/endpoints/notes/replies.ts
@@ -1,9 +1,9 @@
-import define from '../../define';
-import { Notes } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { Notes } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
index ff55f862aa..94fb344c08 100644
--- a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
+++ b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
@@ -1,12 +1,12 @@
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Notes } from '@/models/index';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Notes } from '@/models/index.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
 import { Brackets } from 'typeorm';
-import { safeForSql } from '@/misc/safe-for-sql';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import { safeForSql } from '@/misc/safe-for-sql.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes', 'hashtags'],
diff --git a/packages/backend/src/server/api/endpoints/notes/search.ts b/packages/backend/src/server/api/endpoints/notes/search.ts
index 7034645956..1295542efd 100644
--- a/packages/backend/src/server/api/endpoints/notes/search.ts
+++ b/packages/backend/src/server/api/endpoints/notes/search.ts
@@ -1,12 +1,12 @@
-import es from '../../../../db/elasticsearch';
-import define from '../../define';
-import { Notes } from '@/models/index';
+import es from '../../../../db/elasticsearch.js';
+import define from '../../define.js';
+import { Notes } from '@/models/index.js';
 import { In } from 'typeorm';
-import config from '@/config/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import config from '@/config/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/show.ts b/packages/backend/src/server/api/endpoints/notes/show.ts
index a300f1aefa..d6692923c3 100644
--- a/packages/backend/src/server/api/endpoints/notes/show.ts
+++ b/packages/backend/src/server/api/endpoints/notes/show.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
-import { Notes } from '@/models/index';
+import define from '../../define.js';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
+import { Notes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/state.ts b/packages/backend/src/server/api/endpoints/notes/state.ts
index 2e7f1f75c3..6fdb8e88fb 100644
--- a/packages/backend/src/server/api/endpoints/notes/state.ts
+++ b/packages/backend/src/server/api/endpoints/notes/state.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { NoteFavorites, Notes, NoteThreadMutings, NoteWatchings } from '@/models/index';
+import define from '../../define.js';
+import { NoteFavorites, Notes, NoteThreadMutings, NoteWatchings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts b/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
index 7b3c88785b..e48a2cf576 100644
--- a/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/thread-muting/create.ts
@@ -1,9 +1,9 @@
-import define from '../../../define';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
-import { Notes, NoteThreadMutings } from '@/models';
-import { genId } from '@/misc/gen-id';
-import readNote from '@/services/note/read';
+import define from '../../../define.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
+import { Notes, NoteThreadMutings } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import readNote from '@/services/note/read.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/thread-muting/delete.ts b/packages/backend/src/server/api/endpoints/notes/thread-muting/delete.ts
index 66d631640a..4fb3137a5e 100644
--- a/packages/backend/src/server/api/endpoints/notes/thread-muting/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/thread-muting/delete.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
-import { NoteThreadMutings } from '@/models';
+import define from '../../../define.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
+import { NoteThreadMutings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/timeline.ts b/packages/backend/src/server/api/endpoints/notes/timeline.ts
index 14d0d71704..416e507e9b 100644
--- a/packages/backend/src/server/api/endpoints/notes/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/timeline.ts
@@ -1,15 +1,15 @@
-import define from '../../define';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { Notes, Followings } from '@/models/index';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
-import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query';
-import { activeUsersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { Notes, Followings } from '@/models/index.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
+import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
 import { Brackets } from 'typeorm';
-import { generateRepliesQuery } from '../../common/generate-replies-query';
-import { generateMutedNoteQuery } from '../../common/generate-muted-note-query';
-import { generateChannelQuery } from '../../common/generate-channel-query';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
+import { generateRepliesQuery } from '../../common/generate-replies-query.js';
+import { generateMutedNoteQuery } from '../../common/generate-muted-note-query.js';
+import { generateChannelQuery } from '../../common/generate-channel-query.js';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/translate.ts b/packages/backend/src/server/api/endpoints/notes/translate.ts
index a1d8fae10b..068df6940b 100644
--- a/packages/backend/src/server/api/endpoints/notes/translate.ts
+++ b/packages/backend/src/server/api/endpoints/notes/translate.ts
@@ -1,12 +1,12 @@
-import define from '../../define';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
+import define from '../../define.js';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
 import fetch from 'node-fetch';
-import config from '@/config/index';
-import { getAgentByUrl } from '@/misc/fetch';
-import { URLSearchParams } from 'url';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Notes } from '@/models';
+import config from '@/config/index.js';
+import { getAgentByUrl } from '@/misc/fetch.js';
+import { URLSearchParams } from 'node:url';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Notes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/unrenote.ts b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
index 5b39239279..a9aadba338 100644
--- a/packages/backend/src/server/api/endpoints/notes/unrenote.ts
+++ b/packages/backend/src/server/api/endpoints/notes/unrenote.ts
@@ -1,9 +1,9 @@
-import deleteNote from '@/services/note/delete';
-import define from '../../define';
+import deleteNote from '@/services/note/delete.js';
+import define from '../../define.js';
 import ms from 'ms';
-import { getNote } from '../../common/getters';
-import { ApiError } from '../../error';
-import { Notes, Users } from '@/models/index';
+import { getNote } from '../../common/getters.js';
+import { ApiError } from '../../error.js';
+import { Notes, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
index 68a15f05fb..990c09f07c 100644
--- a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
@@ -1,9 +1,9 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { UserLists, UserListJoinings, Notes } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { activeUsersChart } from '@/services/chart/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { UserLists, UserListJoinings, Notes } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { activeUsersChart } from '@/services/chart/index.js';
 import { Brackets } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/notes/watching/create.ts b/packages/backend/src/server/api/endpoints/notes/watching/create.ts
index ed35638329..8fdf84624e 100644
--- a/packages/backend/src/server/api/endpoints/notes/watching/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/watching/create.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import watch from '@/services/note/watch';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import watch from '@/services/note/watch.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notes/watching/delete.ts b/packages/backend/src/server/api/endpoints/notes/watching/delete.ts
index 1918b887ef..d58f09797c 100644
--- a/packages/backend/src/server/api/endpoints/notes/watching/delete.ts
+++ b/packages/backend/src/server/api/endpoints/notes/watching/delete.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import unwatch from '@/services/note/unwatch';
-import { getNote } from '../../../common/getters';
-import { ApiError } from '../../../error';
+import define from '../../../define.js';
+import unwatch from '@/services/note/unwatch.js';
+import { getNote } from '../../../common/getters.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/notifications/create.ts b/packages/backend/src/server/api/endpoints/notifications/create.ts
index 590f1c540f..b339c8723d 100644
--- a/packages/backend/src/server/api/endpoints/notifications/create.ts
+++ b/packages/backend/src/server/api/endpoints/notifications/create.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { createNotification } from '@/services/create-notification';
+import define from '../../define.js';
+import { createNotification } from '@/services/create-notification.js';
 
 export const meta = {
 	tags: ['notifications'],
diff --git a/packages/backend/src/server/api/endpoints/notifications/mark-all-as-read.ts b/packages/backend/src/server/api/endpoints/notifications/mark-all-as-read.ts
index 5ad6605e7f..abefe07be6 100644
--- a/packages/backend/src/server/api/endpoints/notifications/mark-all-as-read.ts
+++ b/packages/backend/src/server/api/endpoints/notifications/mark-all-as-read.ts
@@ -1,6 +1,6 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../define';
-import { Notifications } from '@/models/index';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../define.js';
+import { Notifications } from '@/models/index.js';
 
 export const meta = {
 	tags: ['notifications', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/notifications/read.ts b/packages/backend/src/server/api/endpoints/notifications/read.ts
index 93ac75f649..34f4c155fa 100644
--- a/packages/backend/src/server/api/endpoints/notifications/read.ts
+++ b/packages/backend/src/server/api/endpoints/notifications/read.ts
@@ -1,8 +1,8 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../../define';
-import { Notifications } from '@/models/index';
-import { readNotification } from '../../common/read-notification';
-import { ApiError } from '../../error';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../../define.js';
+import { Notifications } from '@/models/index.js';
+import { readNotification } from '../../common/read-notification.js';
+import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['notifications', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/page-push.ts b/packages/backend/src/server/api/endpoints/page-push.ts
index 690cd0884d..acaa118470 100644
--- a/packages/backend/src/server/api/endpoints/page-push.ts
+++ b/packages/backend/src/server/api/endpoints/page-push.ts
@@ -1,7 +1,7 @@
-import define from '../define';
-import { publishMainStream } from '@/services/stream';
-import { Users, Pages } from '@/models/index';
-import { ApiError } from '../error';
+import define from '../define.js';
+import { publishMainStream } from '@/services/stream.js';
+import { Users, Pages } from '@/models/index.js';
+import { ApiError } from '../error.js';
 
 export const meta = {
 	requireCredential: true,
diff --git a/packages/backend/src/server/api/endpoints/pages/create.ts b/packages/backend/src/server/api/endpoints/pages/create.ts
index c6d50e5cdf..7cac530606 100644
--- a/packages/backend/src/server/api/endpoints/pages/create.ts
+++ b/packages/backend/src/server/api/endpoints/pages/create.ts
@@ -1,9 +1,9 @@
 import ms from 'ms';
-import define from '../../define';
-import { Pages, DriveFiles } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { Page } from '@/models/entities/page';
-import { ApiError } from '../../error';
+import define from '../../define.js';
+import { Pages, DriveFiles } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { Page } from '@/models/entities/page.js';
+import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/delete.ts b/packages/backend/src/server/api/endpoints/pages/delete.ts
index 2933e04174..ddf691f53c 100644
--- a/packages/backend/src/server/api/endpoints/pages/delete.ts
+++ b/packages/backend/src/server/api/endpoints/pages/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Pages } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Pages } from '@/models/index.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/featured.ts b/packages/backend/src/server/api/endpoints/pages/featured.ts
index dbd8737b08..eeb6d509ca 100644
--- a/packages/backend/src/server/api/endpoints/pages/featured.ts
+++ b/packages/backend/src/server/api/endpoints/pages/featured.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Pages } from '@/models/index';
+import define from '../../define.js';
+import { Pages } from '@/models/index.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/like.ts b/packages/backend/src/server/api/endpoints/pages/like.ts
index 0eb110732f..cab78e576c 100644
--- a/packages/backend/src/server/api/endpoints/pages/like.ts
+++ b/packages/backend/src/server/api/endpoints/pages/like.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Pages, PageLikes } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Pages, PageLikes } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/show.ts b/packages/backend/src/server/api/endpoints/pages/show.ts
index e330460f23..4e3facae5b 100644
--- a/packages/backend/src/server/api/endpoints/pages/show.ts
+++ b/packages/backend/src/server/api/endpoints/pages/show.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Pages, Users } from '@/models/index';
-import { Page } from '@/models/entities/page';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Pages, Users } from '@/models/index.js';
+import { Page } from '@/models/entities/page.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/unlike.ts b/packages/backend/src/server/api/endpoints/pages/unlike.ts
index f8efe8969a..31cd1a3359 100644
--- a/packages/backend/src/server/api/endpoints/pages/unlike.ts
+++ b/packages/backend/src/server/api/endpoints/pages/unlike.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Pages, PageLikes } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Pages, PageLikes } from '@/models/index.js';
 
 export const meta = {
 	tags: ['pages'],
diff --git a/packages/backend/src/server/api/endpoints/pages/update.ts b/packages/backend/src/server/api/endpoints/pages/update.ts
index 8c81ea7463..24c8f467e6 100644
--- a/packages/backend/src/server/api/endpoints/pages/update.ts
+++ b/packages/backend/src/server/api/endpoints/pages/update.ts
@@ -1,7 +1,7 @@
 import ms from 'ms';
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Pages, DriveFiles } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Pages, DriveFiles } from '@/models/index.js';
 import { Not } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/ping.ts b/packages/backend/src/server/api/endpoints/ping.ts
index 4f68965598..2891a0860a 100644
--- a/packages/backend/src/server/api/endpoints/ping.ts
+++ b/packages/backend/src/server/api/endpoints/ping.ts
@@ -1,4 +1,4 @@
-import define from '../define';
+import define from '../define.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/pinned-users.ts b/packages/backend/src/server/api/endpoints/pinned-users.ts
index 61c67949cf..1d26ab266e 100644
--- a/packages/backend/src/server/api/endpoints/pinned-users.ts
+++ b/packages/backend/src/server/api/endpoints/pinned-users.ts
@@ -1,8 +1,8 @@
-import define from '../define';
-import { Users } from '@/models/index';
-import { fetchMeta } from '@/misc/fetch-meta';
-import * as Acct from 'misskey-js/built/acct';
-import { User } from '@/models/entities/user';
+import define from '../define.js';
+import { Users } from '@/models/index.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import * as Acct from '@/misc/acct.js';
+import { User } from '@/models/entities/user.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/promo/read.ts b/packages/backend/src/server/api/endpoints/promo/read.ts
index b811159834..ea34ca3aad 100644
--- a/packages/backend/src/server/api/endpoints/promo/read.ts
+++ b/packages/backend/src/server/api/endpoints/promo/read.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getNote } from '../../common/getters';
-import { PromoReads } from '@/models/index';
-import { genId } from '@/misc/gen-id';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getNote } from '../../common/getters.js';
+import { PromoReads } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
 
 export const meta = {
 	tags: ['notes'],
diff --git a/packages/backend/src/server/api/endpoints/request-reset-password.ts b/packages/backend/src/server/api/endpoints/request-reset-password.ts
index af190583c0..18cd98b164 100644
--- a/packages/backend/src/server/api/endpoints/request-reset-password.ts
+++ b/packages/backend/src/server/api/endpoints/request-reset-password.ts
@@ -1,12 +1,12 @@
-import { publishMainStream } from '@/services/stream';
-import define from '../define';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../define.js';
 import rndstr from 'rndstr';
-import config from '@/config/index';
+import config from '@/config/index.js';
 import ms from 'ms';
-import { Users, UserProfiles, PasswordResetRequests } from '@/models/index';
-import { sendEmail } from '@/services/send-email';
-import { ApiError } from '../error';
-import { genId } from '@/misc/gen-id';
+import { Users, UserProfiles, PasswordResetRequests } from '@/models/index.js';
+import { sendEmail } from '@/services/send-email.js';
+import { ApiError } from '../error.js';
+import { genId } from '@/misc/gen-id.js';
 import { IsNull } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/reset-db.ts b/packages/backend/src/server/api/endpoints/reset-db.ts
index 5a72c306ba..dbe64e9a13 100644
--- a/packages/backend/src/server/api/endpoints/reset-db.ts
+++ b/packages/backend/src/server/api/endpoints/reset-db.ts
@@ -1,6 +1,6 @@
-import define from '../define';
-import { ApiError } from '../error';
-import { resetDb } from '@/db/postgre';
+import define from '../define.js';
+import { ApiError } from '../error.js';
+import { resetDb } from '@/db/postgre.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/reset-password.ts b/packages/backend/src/server/api/endpoints/reset-password.ts
index 880ff682fb..3abf232af0 100644
--- a/packages/backend/src/server/api/endpoints/reset-password.ts
+++ b/packages/backend/src/server/api/endpoints/reset-password.ts
@@ -1,8 +1,8 @@
-import * as bcrypt from 'bcryptjs';
-import { publishMainStream } from '@/services/stream';
-import define from '../define';
-import { Users, UserProfiles, PasswordResetRequests } from '@/models/index';
-import { ApiError } from '../error';
+import bcrypt from 'bcryptjs';
+import { publishMainStream } from '@/services/stream.js';
+import define from '../define.js';
+import { Users, UserProfiles, PasswordResetRequests } from '@/models/index.js';
+import { ApiError } from '../error.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/server-info.ts b/packages/backend/src/server/api/endpoints/server-info.ts
index 97245575e8..99f3730e97 100644
--- a/packages/backend/src/server/api/endpoints/server-info.ts
+++ b/packages/backend/src/server/api/endpoints/server-info.ts
@@ -1,6 +1,6 @@
-import * as os from 'os';
-import * as si from 'systeminformation';
-import define from '../define';
+import * as os from 'node:os';
+import si from 'systeminformation';
+import define from '../define.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/stats.ts b/packages/backend/src/server/api/endpoints/stats.ts
index 7863d439ca..92fea4de6a 100644
--- a/packages/backend/src/server/api/endpoints/stats.ts
+++ b/packages/backend/src/server/api/endpoints/stats.ts
@@ -1,6 +1,6 @@
-import define from '../define';
-import { Instances, NoteReactions, Notes, Users } from '@/models/index';
-import { } from '@/services/chart/index';
+import define from '../define.js';
+import { Instances, NoteReactions, Notes, Users } from '@/models/index.js';
+import { } from '@/services/chart/index.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/sw/register.ts b/packages/backend/src/server/api/endpoints/sw/register.ts
index 9971bfb7d0..6c7714e19b 100644
--- a/packages/backend/src/server/api/endpoints/sw/register.ts
+++ b/packages/backend/src/server/api/endpoints/sw/register.ts
@@ -1,7 +1,7 @@
-import define from '../../define';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { genId } from '@/misc/gen-id';
-import { SwSubscriptions } from '@/models/index';
+import define from '../../define.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { genId } from '@/misc/gen-id.js';
+import { SwSubscriptions } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/sw/unregister.ts b/packages/backend/src/server/api/endpoints/sw/unregister.ts
index fc5fb0ce92..9748f2a222 100644
--- a/packages/backend/src/server/api/endpoints/sw/unregister.ts
+++ b/packages/backend/src/server/api/endpoints/sw/unregister.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { SwSubscriptions } from '../../../../models';
+import define from '../../define.js';
+import { SwSubscriptions } from '@/models/index.js';
 
 export const meta = {
 	tags: ['account'],
diff --git a/packages/backend/src/server/api/endpoints/test.ts b/packages/backend/src/server/api/endpoints/test.ts
index ee04009308..256da1a66f 100644
--- a/packages/backend/src/server/api/endpoints/test.ts
+++ b/packages/backend/src/server/api/endpoints/test.ts
@@ -1,4 +1,4 @@
-import define from '../define';
+import define from '../define.js';
 
 export const meta = {
 	requireCredential: false,
diff --git a/packages/backend/src/server/api/endpoints/username/available.ts b/packages/backend/src/server/api/endpoints/username/available.ts
index 4564784a9b..5a1c4128ab 100644
--- a/packages/backend/src/server/api/endpoints/username/available.ts
+++ b/packages/backend/src/server/api/endpoints/username/available.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Users, UsedUsernames } from '@/models/index';
+import define from '../../define.js';
+import { Users, UsedUsernames } from '@/models/index.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users.ts b/packages/backend/src/server/api/endpoints/users.ts
index 2406fcd2fc..10527d15cc 100644
--- a/packages/backend/src/server/api/endpoints/users.ts
+++ b/packages/backend/src/server/api/endpoints/users.ts
@@ -1,7 +1,7 @@
-import define from '../define';
-import { Users } from '@/models/index';
-import { generateMutedUserQueryForUsers } from '../common/generate-muted-user-query';
-import { generateBlockQueryForUsers } from '../common/generate-block-query';
+import define from '../define.js';
+import { Users } from '@/models/index.js';
+import { generateMutedUserQueryForUsers } from '../common/generate-muted-user-query.js';
+import { generateBlockQueryForUsers } from '../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/clips.ts b/packages/backend/src/server/api/endpoints/users/clips.ts
index 7abb94e2cf..424c594749 100644
--- a/packages/backend/src/server/api/endpoints/users/clips.ts
+++ b/packages/backend/src/server/api/endpoints/users/clips.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Clips } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Clips } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['users', 'clips'],
diff --git a/packages/backend/src/server/api/endpoints/users/followers.ts b/packages/backend/src/server/api/endpoints/users/followers.ts
index 75f13a2929..1e104b6bcc 100644
--- a/packages/backend/src/server/api/endpoints/users/followers.ts
+++ b/packages/backend/src/server/api/endpoints/users/followers.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Users, Followings, UserProfiles } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { toPunyNullable } from '@/misc/convert-host';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Users, Followings, UserProfiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { toPunyNullable } from '@/misc/convert-host.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/following.ts b/packages/backend/src/server/api/endpoints/users/following.ts
index b1af55169c..b0a1036c76 100644
--- a/packages/backend/src/server/api/endpoints/users/following.ts
+++ b/packages/backend/src/server/api/endpoints/users/following.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { Users, Followings, UserProfiles } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { toPunyNullable } from '@/misc/convert-host';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { Users, Followings, UserProfiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { toPunyNullable } from '@/misc/convert-host.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/gallery/posts.ts b/packages/backend/src/server/api/endpoints/users/gallery/posts.ts
index 7accc0b627..d7c435256c 100644
--- a/packages/backend/src/server/api/endpoints/users/gallery/posts.ts
+++ b/packages/backend/src/server/api/endpoints/users/gallery/posts.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { GalleryPosts } from '@/models/index';
-import { makePaginationQuery } from '../../../common/make-pagination-query';
+import define from '../../../define.js';
+import { GalleryPosts } from '@/models/index.js';
+import { makePaginationQuery } from '../../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['users', 'gallery'],
diff --git a/packages/backend/src/server/api/endpoints/users/get-frequently-replied-users.ts b/packages/backend/src/server/api/endpoints/users/get-frequently-replied-users.ts
index 5173982840..73cadc0df7 100644
--- a/packages/backend/src/server/api/endpoints/users/get-frequently-replied-users.ts
+++ b/packages/backend/src/server/api/endpoints/users/get-frequently-replied-users.ts
@@ -1,9 +1,9 @@
-import define from '../../define';
-import { maximum } from '@/prelude/array';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
+import define from '../../define.js';
+import { maximum } from '@/prelude/array.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
 import { Not, In, IsNull } from 'typeorm';
-import { Notes, Users } from '@/models/index';
+import { Notes, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/create.ts b/packages/backend/src/server/api/endpoints/users/groups/create.ts
index 358d3828a0..9f6d8464d8 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/create.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/create.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { UserGroup } from '@/models/entities/user-group';
-import { UserGroupJoining } from '@/models/entities/user-group-joining';
+import define from '../../../define.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { UserGroupJoining } from '@/models/entities/user-group-joining.js';
 
 export const meta = {
 	tags: ['groups'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/delete.ts b/packages/backend/src/server/api/endpoints/users/groups/delete.ts
index ca8d864dcd..f4898a3c7c 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/delete.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserGroups } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserGroups } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/invitations/accept.ts b/packages/backend/src/server/api/endpoints/users/groups/invitations/accept.ts
index 31d3461280..efbdf968f6 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/invitations/accept.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/invitations/accept.ts
@@ -1,8 +1,8 @@
-import define from '../../../../define';
-import { ApiError } from '../../../../error';
-import { UserGroupJoinings, UserGroupInvitations } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { UserGroupJoining } from '@/models/entities/user-group-joining';
+import define from '../../../../define.js';
+import { ApiError } from '../../../../error.js';
+import { UserGroupJoinings, UserGroupInvitations } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { UserGroupJoining } from '@/models/entities/user-group-joining.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/invitations/reject.ts b/packages/backend/src/server/api/endpoints/users/groups/invitations/reject.ts
index 29b7612a8a..fe5d431eab 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/invitations/reject.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/invitations/reject.ts
@@ -1,6 +1,6 @@
-import define from '../../../../define';
-import { ApiError } from '../../../../error';
-import { UserGroupInvitations } from '@/models/index';
+import define from '../../../../define.js';
+import { ApiError } from '../../../../error.js';
+import { UserGroupInvitations } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/invite.ts b/packages/backend/src/server/api/endpoints/users/groups/invite.ts
index 31eef02b2f..10bfb7eca1 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/invite.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/invite.ts
@@ -1,10 +1,10 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { UserGroups, UserGroupJoinings, UserGroupInvitations } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { UserGroupInvitation } from '@/models/entities/user-group-invitation';
-import { createNotification } from '@/services/create-notification';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { UserGroups, UserGroupJoinings, UserGroupInvitations } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { UserGroupInvitation } from '@/models/entities/user-group-invitation.js';
+import { createNotification } from '@/services/create-notification.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/joined.ts b/packages/backend/src/server/api/endpoints/users/groups/joined.ts
index 465585376e..e52de78595 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/joined.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/joined.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
+import define from '../../../define.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
 import { Not, In } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/users/groups/leave.ts b/packages/backend/src/server/api/endpoints/users/groups/leave.ts
index 56b5330c83..c1a8c2c024 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/leave.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/leave.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/owned.ts b/packages/backend/src/server/api/endpoints/users/groups/owned.ts
index a3724a0547..11aad0f73c 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/owned.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/owned.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { UserGroups } from '@/models/index';
+import define from '../../../define.js';
+import { UserGroups } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/pull.ts b/packages/backend/src/server/api/endpoints/users/groups/pull.ts
index dd93faa62e..55ec9f915b 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/pull.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/pull.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/show.ts b/packages/backend/src/server/api/endpoints/users/groups/show.ts
index 799ec3202e..28ca1162c8 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/show.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/show.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/transfer.ts b/packages/backend/src/server/api/endpoints/users/groups/transfer.ts
index bb3b7f11c2..f48e1ddbf0 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/transfer.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/transfer.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { UserGroups, UserGroupJoinings } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { UserGroups, UserGroupJoinings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/groups/update.ts b/packages/backend/src/server/api/endpoints/users/groups/update.ts
index 6c8851889a..b3e17dfd9e 100644
--- a/packages/backend/src/server/api/endpoints/users/groups/update.ts
+++ b/packages/backend/src/server/api/endpoints/users/groups/update.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserGroups } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserGroups } from '@/models/index.js';
 
 export const meta = {
 	tags: ['groups'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/create.ts b/packages/backend/src/server/api/endpoints/users/lists/create.ts
index c0c37f96f1..1a0599f9e7 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/create.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/create.ts
@@ -1,7 +1,7 @@
-import define from '../../../define';
-import { UserLists } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { UserList } from '@/models/entities/user-list';
+import define from '../../../define.js';
+import { UserLists } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { UserList } from '@/models/entities/user-list.js';
 
 export const meta = {
 	tags: ['lists'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/delete.ts b/packages/backend/src/server/api/endpoints/users/lists/delete.ts
index 0f7fdbc908..aeefb98c83 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/delete.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/delete.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserLists } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserLists } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/list.ts b/packages/backend/src/server/api/endpoints/users/lists/list.ts
index 5245c57849..a8663ada8a 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/list.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/list.ts
@@ -1,5 +1,5 @@
-import define from '../../../define';
-import { UserLists } from '@/models/index';
+import define from '../../../define.js';
+import { UserLists } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/pull.ts b/packages/backend/src/server/api/endpoints/users/lists/pull.ts
index 45b0b41564..2c4c61d51e 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/pull.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/pull.ts
@@ -1,8 +1,8 @@
-import { publishUserListStream } from '@/services/stream';
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { UserLists, UserListJoinings, Users } from '@/models/index';
+import { publishUserListStream } from '@/services/stream.js';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { UserLists, UserListJoinings, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/push.ts b/packages/backend/src/server/api/endpoints/users/lists/push.ts
index 252f7e6e19..034a9d2db6 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/push.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/push.ts
@@ -1,8 +1,8 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { getUser } from '../../../common/getters';
-import { pushUserToUserList } from '@/services/user-list/push';
-import { UserLists, UserListJoinings, Blockings } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { getUser } from '../../../common/getters.js';
+import { pushUserToUserList } from '@/services/user-list/push.js';
+import { UserLists, UserListJoinings, Blockings } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists', 'users'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/show.ts b/packages/backend/src/server/api/endpoints/users/lists/show.ts
index 91a2bf55a4..fadb94c90e 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/show.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/show.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserLists } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserLists } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists', 'account'],
diff --git a/packages/backend/src/server/api/endpoints/users/lists/update.ts b/packages/backend/src/server/api/endpoints/users/lists/update.ts
index 3e3f6ec9fe..5ec99031e1 100644
--- a/packages/backend/src/server/api/endpoints/users/lists/update.ts
+++ b/packages/backend/src/server/api/endpoints/users/lists/update.ts
@@ -1,6 +1,6 @@
-import define from '../../../define';
-import { ApiError } from '../../../error';
-import { UserLists } from '@/models/index';
+import define from '../../../define.js';
+import { ApiError } from '../../../error.js';
+import { UserLists } from '@/models/index.js';
 
 export const meta = {
 	tags: ['lists'],
diff --git a/packages/backend/src/server/api/endpoints/users/notes.ts b/packages/backend/src/server/api/endpoints/users/notes.ts
index 4c27fb8ee4..1f61773c44 100644
--- a/packages/backend/src/server/api/endpoints/users/notes.ts
+++ b/packages/backend/src/server/api/endpoints/users/notes.ts
@@ -1,13 +1,13 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { Notes } from '@/models/index';
-import { generateMutedUserQuery } from '../../common/generate-muted-user-query';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { Notes } from '@/models/index.js';
+import { generateMutedUserQuery } from '../../common/generate-muted-user-query.js';
 import { Brackets } from 'typeorm';
-import { generateBlockedUserQuery } from '../../common/generate-block-query';
-import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query';
+import { generateBlockedUserQuery } from '../../common/generate-block-query.js';
+import { generateMutedInstanceQuery } from '../../common/generate-muted-instance-query.js';
 
 export const meta = {
 	tags: ['users', 'notes'],
diff --git a/packages/backend/src/server/api/endpoints/users/pages.ts b/packages/backend/src/server/api/endpoints/users/pages.ts
index f7b39b75fd..b8b3e8192e 100644
--- a/packages/backend/src/server/api/endpoints/users/pages.ts
+++ b/packages/backend/src/server/api/endpoints/users/pages.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { Pages } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
+import define from '../../define.js';
+import { Pages } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
 
 export const meta = {
 	tags: ['users', 'pages'],
diff --git a/packages/backend/src/server/api/endpoints/users/reactions.ts b/packages/backend/src/server/api/endpoints/users/reactions.ts
index c9b5a95639..7b55a16711 100644
--- a/packages/backend/src/server/api/endpoints/users/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/users/reactions.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { NoteReactions, UserProfiles } from '@/models/index';
-import { makePaginationQuery } from '../../common/make-pagination-query';
-import { generateVisibilityQuery } from '../../common/generate-visibility-query';
-import { ApiError } from '../../error';
+import define from '../../define.js';
+import { NoteReactions, UserProfiles } from '@/models/index.js';
+import { makePaginationQuery } from '../../common/make-pagination-query.js';
+import { generateVisibilityQuery } from '../../common/generate-visibility-query.js';
+import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['users', 'reactions'],
diff --git a/packages/backend/src/server/api/endpoints/users/recommendation.ts b/packages/backend/src/server/api/endpoints/users/recommendation.ts
index 78c2f3e1a4..a8f18de522 100644
--- a/packages/backend/src/server/api/endpoints/users/recommendation.ts
+++ b/packages/backend/src/server/api/endpoints/users/recommendation.ts
@@ -1,8 +1,8 @@
 import ms from 'ms';
-import define from '../../define';
-import { Users, Followings } from '@/models/index';
-import { generateMutedUserQueryForUsers } from '../../common/generate-muted-user-query';
-import { generateBlockedUserQuery, generateBlockQueryForUsers } from '../../common/generate-block-query';
+import define from '../../define.js';
+import { Users, Followings } from '@/models/index.js';
+import { generateMutedUserQueryForUsers } from '../../common/generate-muted-user-query.js';
+import { generateBlockedUserQuery, generateBlockQueryForUsers } from '../../common/generate-block-query.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/relation.ts b/packages/backend/src/server/api/endpoints/users/relation.ts
index 140126cab5..c6262122d4 100644
--- a/packages/backend/src/server/api/endpoints/users/relation.ts
+++ b/packages/backend/src/server/api/endpoints/users/relation.ts
@@ -1,5 +1,5 @@
-import define from '../../define';
-import { Users } from '@/models/index';
+import define from '../../define.js';
+import { Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/report-abuse.ts b/packages/backend/src/server/api/endpoints/users/report-abuse.ts
index 717724a4cf..e091b8e1b1 100644
--- a/packages/backend/src/server/api/endpoints/users/report-abuse.ts
+++ b/packages/backend/src/server/api/endpoints/users/report-abuse.ts
@@ -1,12 +1,12 @@
 import * as sanitizeHtml from 'sanitize-html';
-import define from '../../define';
-import { publishAdminStream } from '@/services/stream';
-import { ApiError } from '../../error';
-import { getUser } from '../../common/getters';
-import { AbuseUserReports, Users } from '@/models/index';
-import { genId } from '@/misc/gen-id';
-import { sendEmail } from '@/services/send-email';
-import { fetchMeta } from '@/misc/fetch-meta';
+import define from '../../define.js';
+import { publishAdminStream } from '@/services/stream.js';
+import { ApiError } from '../../error.js';
+import { getUser } from '../../common/getters.js';
+import { AbuseUserReports, Users } from '@/models/index.js';
+import { genId } from '@/misc/gen-id.js';
+import { sendEmail } from '@/services/send-email.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts b/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
index 15a93bc4f8..9d5a273fae 100644
--- a/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
+++ b/packages/backend/src/server/api/endpoints/users/search-by-username-and-host.ts
@@ -1,8 +1,8 @@
-import define from '../../define';
-import { Followings, Users } from '@/models/index';
+import define from '../../define.js';
+import { Followings, Users } from '@/models/index.js';
 import { Brackets } from 'typeorm';
-import { USER_ACTIVE_THRESHOLD } from '@/const';
-import { User } from '@/models/entities/user';
+import { USER_ACTIVE_THRESHOLD } from '@/const.js';
+import { User } from '@/models/entities/user.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/search.ts b/packages/backend/src/server/api/endpoints/users/search.ts
index 9d772f0968..a72a58a843 100644
--- a/packages/backend/src/server/api/endpoints/users/search.ts
+++ b/packages/backend/src/server/api/endpoints/users/search.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { UserProfiles, Users } from '@/models/index';
-import { User } from '@/models/entities/user';
+import define from '../../define.js';
+import { UserProfiles, Users } from '@/models/index.js';
+import { User } from '@/models/entities/user.js';
 import { Brackets } from 'typeorm';
 
 export const meta = {
diff --git a/packages/backend/src/server/api/endpoints/users/show.ts b/packages/backend/src/server/api/endpoints/users/show.ts
index cb42cc80a0..263c102a7a 100644
--- a/packages/backend/src/server/api/endpoints/users/show.ts
+++ b/packages/backend/src/server/api/endpoints/users/show.ts
@@ -1,10 +1,10 @@
-import { resolveUser } from '@/remote/resolve-user';
-import define from '../../define';
-import { apiLogger } from '../../logger';
-import { ApiError } from '../../error';
-import { Users } from '@/models/index';
+import { resolveUser } from '@/remote/resolve-user.js';
+import define from '../../define.js';
+import { apiLogger } from '../../logger.js';
+import { ApiError } from '../../error.js';
+import { Users } from '@/models/index.js';
 import { In } from 'typeorm';
-import { User } from '@/models/entities/user';
+import { User } from '@/models/entities/user.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/endpoints/users/stats.ts b/packages/backend/src/server/api/endpoints/users/stats.ts
index 2f4ca10fc1..180a9386d3 100644
--- a/packages/backend/src/server/api/endpoints/users/stats.ts
+++ b/packages/backend/src/server/api/endpoints/users/stats.ts
@@ -1,6 +1,6 @@
-import define from '../../define';
-import { ApiError } from '../../error';
-import { DriveFiles, Followings, NoteFavorites, NoteReactions, Notes, PageLikes, PollVotes, Users } from '@/models/index';
+import define from '../../define.js';
+import { ApiError } from '../../error.js';
+import { DriveFiles, Followings, NoteFavorites, NoteReactions, Notes, PageLikes, PollVotes, Users } from '@/models/index.js';
 
 export const meta = {
 	tags: ['users'],
diff --git a/packages/backend/src/server/api/index.ts b/packages/backend/src/server/api/index.ts
index 8f8a9d999e..ba2a71951c 100644
--- a/packages/backend/src/server/api/index.ts
+++ b/packages/backend/src/server/api/index.ts
@@ -2,22 +2,22 @@
  * API Server
  */
 
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
-import * as multer from '@koa/multer';
-import * as bodyParser from 'koa-bodyparser';
-import * as cors from '@koa/cors';
+import Koa from 'koa';
+import Router from '@koa/router';
+import multer from '@koa/multer';
+import bodyParser from 'koa-bodyparser';
+import cors from '@koa/cors';
 
-import endpoints from './endpoints';
-import handler from './api-handler';
-import signup from './private/signup';
-import signin from './private/signin';
-import signupPending from './private/signup-pending';
-import discord from './service/discord';
-import github from './service/github';
-import twitter from './service/twitter';
-import { Instances, AccessTokens, Users } from '@/models/index';
-import config from '@/config';
+import endpoints from './endpoints.js';
+import handler from './api-handler.js';
+import signup from './private/signup.js';
+import signin from './private/signin.js';
+import signupPending from './private/signup-pending.js';
+import discord from './service/discord.js';
+import github from './service/github.js';
+import twitter from './service/twitter.js';
+import { Instances, AccessTokens, Users } from '@/models/index.js';
+import config from '@/config/index.js';
 
 // Init app
 const app = new Koa();
diff --git a/packages/backend/src/server/api/limiter.ts b/packages/backend/src/server/api/limiter.ts
index 4721f6263a..2e4a190000 100644
--- a/packages/backend/src/server/api/limiter.ts
+++ b/packages/backend/src/server/api/limiter.ts
@@ -1,9 +1,9 @@
 import * as Limiter from 'ratelimiter';
-import { redisClient } from '../../db/redis';
-import { IEndpoint } from './endpoints';
-import * as Acct from 'misskey-js/built/acct';
-import { User } from '@/models/entities/user';
-import Logger from '@/services/logger';
+import { redisClient } from '../../db/redis.js';
+import { IEndpoint } from './endpoints.js';
+import * as Acct from '@/misc/acct.js';
+import { User } from '@/models/entities/user.js';
+import Logger from '@/services/logger.js';
 
 const logger = new Logger('limiter');
 
diff --git a/packages/backend/src/server/api/logger.ts b/packages/backend/src/server/api/logger.ts
index 750defe547..ec22d6c3e2 100644
--- a/packages/backend/src/server/api/logger.ts
+++ b/packages/backend/src/server/api/logger.ts
@@ -1,3 +1,3 @@
-import Logger from '@/services/logger';
+import Logger from '@/services/logger.js';
 
 export const apiLogger = new Logger('api');
diff --git a/packages/backend/src/server/api/openapi/gen-spec.ts b/packages/backend/src/server/api/openapi/gen-spec.ts
index fe5a4715e8..c6e557aefb 100644
--- a/packages/backend/src/server/api/openapi/gen-spec.ts
+++ b/packages/backend/src/server/api/openapi/gen-spec.ts
@@ -1,7 +1,7 @@
-import endpoints from '../endpoints';
-import config from '@/config/index';
-import { errors as basicErrors } from './errors';
-import { schemas, convertSchemaToOpenApiSchema } from './schemas';
+import endpoints from '../endpoints.js';
+import config from '@/config/index.js';
+import { errors as basicErrors } from './errors.js';
+import { schemas, convertSchemaToOpenApiSchema } from './schemas.js';
 
 export function genOpenapiSpec(lang = 'ja-JP') {
 	const spec = {
diff --git a/packages/backend/src/server/api/openapi/schemas.ts b/packages/backend/src/server/api/openapi/schemas.ts
index 5d062168e7..14bef9cab1 100644
--- a/packages/backend/src/server/api/openapi/schemas.ts
+++ b/packages/backend/src/server/api/openapi/schemas.ts
@@ -1,4 +1,4 @@
-import { refs, Schema } from '@/misc/schema';
+import { refs, Schema } from '@/misc/schema.js';
 
 export function convertSchemaToOpenApiSchema(schema: Schema) {
 	const res: any = schema;
diff --git a/packages/backend/src/server/api/private/signin.ts b/packages/backend/src/server/api/private/signin.ts
index 7b733b768d..b0f88948a0 100644
--- a/packages/backend/src/server/api/private/signin.ts
+++ b/packages/backend/src/server/api/private/signin.ts
@@ -1,13 +1,13 @@
-import * as Koa from 'koa';
-import * as bcrypt from 'bcryptjs';
+import Koa from 'koa';
+import bcrypt from 'bcryptjs';
 import * as speakeasy from 'speakeasy';
-import signin from '../common/signin';
-import config from '@/config/index';
-import { Users, Signins, UserProfiles, UserSecurityKeys, AttestationChallenges } from '@/models/index';
-import { ILocalUser } from '@/models/entities/user';
-import { genId } from '@/misc/gen-id';
-import { verifyLogin, hash } from '../2fa';
-import { randomBytes } from 'crypto';
+import signin from '../common/signin.js';
+import config from '@/config/index.js';
+import { Users, Signins, UserProfiles, UserSecurityKeys, AttestationChallenges } from '@/models/index.js';
+import { ILocalUser } from '@/models/entities/user.js';
+import { genId } from '@/misc/gen-id.js';
+import { verifyLogin, hash } from '../2fa.js';
+import { randomBytes } from 'node:crypto';
 
 export default async (ctx: Koa.Context) => {
 	ctx.set('Access-Control-Allow-Origin', config.url);
diff --git a/packages/backend/src/server/api/private/signup-pending.ts b/packages/backend/src/server/api/private/signup-pending.ts
index c0638a1cda..1a667ddb43 100644
--- a/packages/backend/src/server/api/private/signup-pending.ts
+++ b/packages/backend/src/server/api/private/signup-pending.ts
@@ -1,7 +1,7 @@
-import * as Koa from 'koa';
-import { Users, UserPendings, UserProfiles } from '@/models/index';
-import { signup } from '../common/signup';
-import signin from '../common/signin';
+import Koa from 'koa';
+import { Users, UserPendings, UserProfiles } from '@/models/index.js';
+import { signup } from '../common/signup.js';
+import signin from '../common/signin.js';
 
 export default async (ctx: Koa.Context) => {
 	const body = ctx.request.body;
diff --git a/packages/backend/src/server/api/private/signup.ts b/packages/backend/src/server/api/private/signup.ts
index d42c270bb0..01f284a57f 100644
--- a/packages/backend/src/server/api/private/signup.ts
+++ b/packages/backend/src/server/api/private/signup.ts
@@ -1,14 +1,14 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 import rndstr from 'rndstr';
-import * as bcrypt from 'bcryptjs';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { verifyHcaptcha, verifyRecaptcha } from '@/misc/captcha';
-import { Users, RegistrationTickets, UserPendings } from '@/models/index';
-import { signup } from '../common/signup';
-import config from '@/config';
-import { sendEmail } from '@/services/send-email';
-import { genId } from '@/misc/gen-id';
-import { validateEmailForAccount } from '@/services/validate-email-for-account';
+import bcrypt from 'bcryptjs';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { verifyHcaptcha, verifyRecaptcha } from '@/misc/captcha.js';
+import { Users, RegistrationTickets, UserPendings } from '@/models/index.js';
+import { signup } from '../common/signup.js';
+import config from '@/config/index.js';
+import { sendEmail } from '@/services/send-email.js';
+import { genId } from '@/misc/gen-id.js';
+import { validateEmailForAccount } from '@/services/validate-email-for-account.js';
 
 export default async (ctx: Koa.Context) => {
 	const body = ctx.request.body;
diff --git a/packages/backend/src/server/api/service/discord.ts b/packages/backend/src/server/api/service/discord.ts
index dd731c422e..089f7de0cd 100644
--- a/packages/backend/src/server/api/service/discord.ts
+++ b/packages/backend/src/server/api/service/discord.ts
@@ -1,15 +1,15 @@
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
-import { getJson } from '@/misc/fetch';
+import Koa from 'koa';
+import Router from '@koa/router';
+import { getJson } from '@/misc/fetch.js';
 import { OAuth2 } from 'oauth';
-import config from '@/config/index';
-import { publishMainStream } from '@/services/stream';
-import { redisClient } from '../../../db/redis';
+import config from '@/config/index.js';
+import { publishMainStream } from '@/services/stream.js';
+import { redisClient } from '../../../db/redis.js';
 import { v4 as uuid } from 'uuid';
-import signin from '../common/signin';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Users, UserProfiles } from '@/models/index';
-import { ILocalUser } from '@/models/entities/user';
+import signin from '../common/signin.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Users, UserProfiles } from '@/models/index.js';
+import { ILocalUser } from '@/models/entities/user.js';
 
 function getUserToken(ctx: Koa.BaseContext): string | null {
 	return ((ctx.headers['cookie'] || '').match(/igi=(\w+)/) || [null, null])[1];
diff --git a/packages/backend/src/server/api/service/github.ts b/packages/backend/src/server/api/service/github.ts
index b23219986a..ce032db181 100644
--- a/packages/backend/src/server/api/service/github.ts
+++ b/packages/backend/src/server/api/service/github.ts
@@ -1,15 +1,15 @@
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
-import { getJson } from '@/misc/fetch';
+import Koa from 'koa';
+import Router from '@koa/router';
+import { getJson } from '@/misc/fetch.js';
 import { OAuth2 } from 'oauth';
-import config from '@/config/index';
-import { publishMainStream } from '@/services/stream';
-import { redisClient } from '../../../db/redis';
+import config from '@/config/index.js';
+import { publishMainStream } from '@/services/stream.js';
+import { redisClient } from '../../../db/redis.js';
 import { v4 as uuid } from 'uuid';
-import signin from '../common/signin';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Users, UserProfiles } from '@/models/index';
-import { ILocalUser } from '@/models/entities/user';
+import signin from '../common/signin.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Users, UserProfiles } from '@/models/index.js';
+import { ILocalUser } from '@/models/entities/user.js';
 
 function getUserToken(ctx: Koa.BaseContext): string | null {
 	return ((ctx.headers['cookie'] || '').match(/igi=(\w+)/) || [null, null])[1];
diff --git a/packages/backend/src/server/api/service/twitter.ts b/packages/backend/src/server/api/service/twitter.ts
index bca00b7924..e6e4398fa2 100644
--- a/packages/backend/src/server/api/service/twitter.ts
+++ b/packages/backend/src/server/api/service/twitter.ts
@@ -1,14 +1,14 @@
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
+import Koa from 'koa';
+import Router from '@koa/router';
 import { v4 as uuid } from 'uuid';
 import autwh from 'autwh';
-import { redisClient } from '../../../db/redis';
-import { publishMainStream } from '@/services/stream';
-import config from '@/config/index';
-import signin from '../common/signin';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Users, UserProfiles } from '@/models/index';
-import { ILocalUser } from '@/models/entities/user';
+import { redisClient } from '../../../db/redis.js';
+import { publishMainStream } from '@/services/stream.js';
+import config from '@/config/index.js';
+import signin from '../common/signin.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Users, UserProfiles } from '@/models/index.js';
+import { ILocalUser } from '@/models/entities/user.js';
 
 function getUserToken(ctx: Koa.BaseContext): string | null {
 	return ((ctx.headers['cookie'] || '').match(/igi=(\w+)/) || [null, null])[1];
diff --git a/packages/backend/src/server/api/stream/channel.ts b/packages/backend/src/server/api/stream/channel.ts
index 98337bb318..d2cc5122d5 100644
--- a/packages/backend/src/server/api/stream/channel.ts
+++ b/packages/backend/src/server/api/stream/channel.ts
@@ -1,4 +1,3 @@
-import autobind from 'autobind-decorator';
 import Connection from '.';
 
 /**
@@ -44,7 +43,6 @@ export default abstract class Channel {
 		this.connection = connection;
 	}
 
-	@autobind
 	public send(typeOrPayload: any, payload?: any) {
 		const type = payload === undefined ? typeOrPayload.type : typeOrPayload;
 		const body = payload === undefined ? typeOrPayload.body : payload;
diff --git a/packages/backend/src/server/api/stream/channels/admin.ts b/packages/backend/src/server/api/stream/channels/admin.ts
index 1ff932d1dd..945182ea10 100644
--- a/packages/backend/src/server/api/stream/channels/admin.ts
+++ b/packages/backend/src/server/api/stream/channels/admin.ts
@@ -1,12 +1,10 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
+import Channel from '../channel.js';
 
 export default class extends Channel {
 	public readonly chName = 'admin';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
 	public async init(params: any) {
 		// Subscribe admin stream
 		this.subscriber.on(`adminStream:${this.user!.id}`, data => {
diff --git a/packages/backend/src/server/api/stream/channels/antenna.ts b/packages/backend/src/server/api/stream/channels/antenna.ts
index 3cbdfebb43..afd14946e1 100644
--- a/packages/backend/src/server/api/stream/channels/antenna.ts
+++ b/packages/backend/src/server/api/stream/channels/antenna.ts
@@ -1,9 +1,8 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
-import { Notes } from '@/models/index';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { StreamMessages } from '../types';
+import Channel from '../channel.js';
+import { Notes } from '@/models/index.js';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { StreamMessages } from '../types.js';
 
 export default class extends Channel {
 	public readonly chName = 'antenna';
@@ -11,7 +10,11 @@ export default class extends Channel {
 	public static requireCredential = false;
 	private antennaId: string;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onEvent = this.onEvent.bind(this);
+	}
+
 	public async init(params: any) {
 		this.antennaId = params.antennaId as string;
 
@@ -19,7 +22,6 @@ export default class extends Channel {
 		this.subscriber.on(`antennaStream:${this.antennaId}`, this.onEvent);
 	}
 
-	@autobind
 	private async onEvent(data: StreamMessages['antenna']['payload']) {
 		if (data.type === 'note') {
 			const note = await Notes.pack(data.body.id, this.user, { detail: true });
@@ -37,7 +39,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off(`antennaStream:${this.antennaId}`, this.onEvent);
diff --git a/packages/backend/src/server/api/stream/channels/channel.ts b/packages/backend/src/server/api/stream/channels/channel.ts
index 1e51a81c4b..16ad809395 100644
--- a/packages/backend/src/server/api/stream/channels/channel.ts
+++ b/packages/backend/src/server/api/stream/channels/channel.ts
@@ -1,11 +1,10 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
-import { Notes, Users } from '@/models/index';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { User } from '@/models/entities/user';
-import { StreamMessages } from '../types';
-import { Packed } from '@/misc/schema';
+import Channel from '../channel.js';
+import { Notes, Users } from '@/models/index.js';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { User } from '@/models/entities/user.js';
+import { StreamMessages } from '../types.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'channel';
@@ -15,7 +14,11 @@ export default class extends Channel {
 	private typers: Record<User['id'], Date> = {};
 	private emitTypersIntervalId: ReturnType<typeof setInterval>;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		this.channelId = params.channelId as string;
 
@@ -25,7 +28,6 @@ export default class extends Channel {
 		this.emitTypersIntervalId = setInterval(this.emitTypers, 5000);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		if (note.channelId !== this.channelId) return;
 
@@ -52,7 +54,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	private onEvent(data: StreamMessages['channel']['payload']) {
 		if (data.type === 'typing') {
 			const id = data.body;
@@ -64,7 +65,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	private async emitTypers() {
 		const now = new Date();
 
@@ -81,7 +81,6 @@ export default class extends Channel {
 		});
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/drive.ts b/packages/backend/src/server/api/stream/channels/drive.ts
index 4112dd9b04..140255acd1 100644
--- a/packages/backend/src/server/api/stream/channels/drive.ts
+++ b/packages/backend/src/server/api/stream/channels/drive.ts
@@ -1,12 +1,10 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
+import Channel from '../channel.js';
 
 export default class extends Channel {
 	public readonly chName = 'drive';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
 	public async init(params: any) {
 		// Subscribe drive stream
 		this.subscriber.on(`driveStream:${this.user!.id}`, data => {
diff --git a/packages/backend/src/server/api/stream/channels/global-timeline.ts b/packages/backend/src/server/api/stream/channels/global-timeline.ts
index ecd87d093d..1c7e038ab2 100644
--- a/packages/backend/src/server/api/stream/channels/global-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/global-timeline.ts
@@ -1,19 +1,22 @@
-import autobind from 'autobind-decorator';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import Channel from '../channel';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Notes } from '@/models/index';
-import { checkWordMute } from '@/misc/check-word-mute';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { isInstanceMuted } from '@/misc/is-instance-muted';
-import { Packed } from '@/misc/schema';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import Channel from '../channel.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Notes } from '@/models/index.js';
+import { checkWordMute } from '@/misc/check-word-mute.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { isInstanceMuted } from '@/misc/is-instance-muted.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'globalTimeline';
 	public static shouldShare = true;
 	public static requireCredential = false;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		const meta = await fetchMeta();
 		if (meta.disableGlobalTimeline) {
@@ -24,7 +27,6 @@ export default class extends Channel {
 		this.subscriber.on('notesStream', this.onNote);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		if (note.visibility !== 'public') return;
 		if (note.channelId != null) return;
@@ -69,7 +71,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/hashtag.ts b/packages/backend/src/server/api/stream/channels/hashtag.ts
index 820095dfcf..1b7a58022f 100644
--- a/packages/backend/src/server/api/stream/channels/hashtag.ts
+++ b/packages/backend/src/server/api/stream/channels/hashtag.ts
@@ -1,10 +1,9 @@
-import autobind from 'autobind-decorator';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import Channel from '../channel';
-import { Notes } from '@/models/index';
-import { normalizeForSearch } from '@/misc/normalize-for-search';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { Packed } from '@/misc/schema';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import Channel from '../channel.js';
+import { Notes } from '@/models/index.js';
+import { normalizeForSearch } from '@/misc/normalize-for-search.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'hashtag';
@@ -12,7 +11,11 @@ export default class extends Channel {
 	public static requireCredential = false;
 	private q: string[][];
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		this.q = params.q;
 
@@ -22,7 +25,6 @@ export default class extends Channel {
 		this.subscriber.on('notesStream', this.onNote);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		const noteTags = note.tags ? note.tags.map((t: string) => t.toLowerCase()) : [];
 		const matched = this.q.some(tags => tags.every(tag => noteTags.includes(normalizeForSearch(tag))));
@@ -45,7 +47,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/home-timeline.ts b/packages/backend/src/server/api/stream/channels/home-timeline.ts
index 445db5c382..3a8e55202a 100644
--- a/packages/backend/src/server/api/stream/channels/home-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/home-timeline.ts
@@ -1,24 +1,26 @@
-import autobind from 'autobind-decorator';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import Channel from '../channel';
-import { Notes } from '@/models/index';
-import { checkWordMute } from '@/misc/check-word-mute';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { isInstanceMuted } from '@/misc/is-instance-muted';
-import { Packed } from '@/misc/schema';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import Channel from '../channel.js';
+import { Notes } from '@/models/index.js';
+import { checkWordMute } from '@/misc/check-word-mute.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { isInstanceMuted } from '@/misc/is-instance-muted.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'homeTimeline';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		// Subscribe events
 		this.subscriber.on('notesStream', this.onNote);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		if (note.channelId) {
 			if (!this.followingChannels.has(note.channelId)) return;
@@ -77,7 +79,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
index c0be71fe2d..f3ceeffa1a 100644
--- a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
@@ -1,19 +1,22 @@
-import autobind from 'autobind-decorator';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import Channel from '../channel';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Notes } from '@/models/index';
-import { checkWordMute } from '@/misc/check-word-mute';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { isInstanceMuted } from '@/misc/is-instance-muted';
-import { Packed } from '@/misc/schema';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import Channel from '../channel.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Notes } from '@/models/index.js';
+import { checkWordMute } from '@/misc/check-word-mute.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { isInstanceMuted } from '@/misc/is-instance-muted.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'hybridTimeline';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		const meta = await fetchMeta();
 		if (meta.disableLocalTimeline && !this.user!.isAdmin && !this.user!.isModerator) return;
@@ -22,7 +25,6 @@ export default class extends Channel {
 		this.subscriber.on('notesStream', this.onNote);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		// チャンネルの投稿ではなく、自分自身の投稿 または
 		// チャンネルの投稿ではなく、その投稿のユーザーをフォローしている または
@@ -85,7 +87,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/index.ts b/packages/backend/src/server/api/stream/channels/index.ts
index f3826c4cf7..d422edde87 100644
--- a/packages/backend/src/server/api/stream/channels/index.ts
+++ b/packages/backend/src/server/api/stream/channels/index.ts
@@ -1,18 +1,18 @@
-import main from './main';
-import homeTimeline from './home-timeline';
-import localTimeline from './local-timeline';
-import hybridTimeline from './hybrid-timeline';
-import globalTimeline from './global-timeline';
-import serverStats from './server-stats';
-import queueStats from './queue-stats';
-import userList from './user-list';
-import antenna from './antenna';
-import messaging from './messaging';
-import messagingIndex from './messaging-index';
-import drive from './drive';
-import hashtag from './hashtag';
-import channel from './channel';
-import admin from './admin';
+import main from './main.js';
+import homeTimeline from './home-timeline.js';
+import localTimeline from './local-timeline.js';
+import hybridTimeline from './hybrid-timeline.js';
+import globalTimeline from './global-timeline.js';
+import serverStats from './server-stats.js';
+import queueStats from './queue-stats.js';
+import userList from './user-list.js';
+import antenna from './antenna.js';
+import messaging from './messaging.js';
+import messagingIndex from './messaging-index.js';
+import drive from './drive.js';
+import hashtag from './hashtag.js';
+import channel from './channel.js';
+import admin from './admin.js';
 
 export default {
 	main,
diff --git a/packages/backend/src/server/api/stream/channels/local-timeline.ts b/packages/backend/src/server/api/stream/channels/local-timeline.ts
index ae8f62ba61..4e198482a0 100644
--- a/packages/backend/src/server/api/stream/channels/local-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/local-timeline.ts
@@ -1,18 +1,21 @@
-import autobind from 'autobind-decorator';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import Channel from '../channel';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Notes } from '@/models/index';
-import { checkWordMute } from '@/misc/check-word-mute';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { Packed } from '@/misc/schema';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import Channel from '../channel.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Notes } from '@/models/index.js';
+import { checkWordMute } from '@/misc/check-word-mute.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'localTimeline';
 	public static shouldShare = true;
 	public static requireCredential = false;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		const meta = await fetchMeta();
 		if (meta.disableLocalTimeline) {
@@ -23,7 +26,6 @@ export default class extends Channel {
 		this.subscriber.on('notesStream', this.onNote);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		if (note.user.host !== null) return;
 		if (note.visibility !== 'public') return;
@@ -66,7 +68,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off('notesStream', this.onNote);
diff --git a/packages/backend/src/server/api/stream/channels/main.ts b/packages/backend/src/server/api/stream/channels/main.ts
index b41eae7c71..9cfea0bfc4 100644
--- a/packages/backend/src/server/api/stream/channels/main.ts
+++ b/packages/backend/src/server/api/stream/channels/main.ts
@@ -1,14 +1,12 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
-import { Notes } from '@/models/index';
-import { isInstanceMuted, isUserFromMutedInstance } from '@/misc/is-instance-muted';
+import Channel from '../channel.js';
+import { Notes } from '@/models/index.js';
+import { isInstanceMuted, isUserFromMutedInstance } from '@/misc/is-instance-muted.js';
 
 export default class extends Channel {
 	public readonly chName = 'main';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
 	public async init(params: any) {
 		// Subscribe main stream channel
 		this.subscriber.on(`mainStream:${this.user!.id}`, async data => {
diff --git a/packages/backend/src/server/api/stream/channels/messaging-index.ts b/packages/backend/src/server/api/stream/channels/messaging-index.ts
index 0c495398ab..b930785d20 100644
--- a/packages/backend/src/server/api/stream/channels/messaging-index.ts
+++ b/packages/backend/src/server/api/stream/channels/messaging-index.ts
@@ -1,12 +1,10 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
+import Channel from '../channel.js';
 
 export default class extends Channel {
 	public readonly chName = 'messagingIndex';
 	public static shouldShare = true;
 	public static requireCredential = true;
 
-	@autobind
 	public async init(params: any) {
 		// Subscribe messaging index stream
 		this.subscriber.on(`messagingIndexStream:${this.user!.id}`, data => {
diff --git a/packages/backend/src/server/api/stream/channels/messaging.ts b/packages/backend/src/server/api/stream/channels/messaging.ts
index d8fccf0763..94bbdeca52 100644
--- a/packages/backend/src/server/api/stream/channels/messaging.ts
+++ b/packages/backend/src/server/api/stream/channels/messaging.ts
@@ -1,10 +1,9 @@
-import autobind from 'autobind-decorator';
-import { readUserMessagingMessage, readGroupMessagingMessage, deliverReadActivity } from '../../common/read-messaging-message';
-import Channel from '../channel';
-import { UserGroupJoinings, Users, MessagingMessages } from '@/models/index';
-import { User, ILocalUser, IRemoteUser } from '@/models/entities/user';
-import { UserGroup } from '@/models/entities/user-group';
-import { StreamMessages } from '../types';
+import { readUserMessagingMessage, readGroupMessagingMessage, deliverReadActivity } from '../../common/read-messaging-message.js';
+import Channel from '../channel.js';
+import { UserGroupJoinings, Users, MessagingMessages } from '@/models/index.js';
+import { User, ILocalUser, IRemoteUser } from '@/models/entities/user.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { StreamMessages } from '../types.js';
 
 export default class extends Channel {
 	public readonly chName = 'messaging';
@@ -18,7 +17,13 @@ export default class extends Channel {
 	private typers: Record<User['id'], Date> = {};
 	private emitTypersIntervalId: ReturnType<typeof setInterval>;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onEvent = this.onEvent.bind(this);
+		this.onMessage = this.onMessage.bind(this);
+		this.emitTypers = this.emitTypers.bind(this);
+	}
+
 	public async init(params: any) {
 		this.otherpartyId = params.otherparty;
 		this.otherparty = this.otherpartyId ? await Users.findOneOrFail({ id: this.otherpartyId }) : null;
@@ -46,7 +51,6 @@ export default class extends Channel {
 		this.subscriber.on(this.subCh, this.onEvent);
 	}
 
-	@autobind
 	private onEvent(data: StreamMessages['messaging']['payload'] | StreamMessages['groupMessaging']['payload']) {
 		if (data.type === 'typing') {
 			const id = data.body;
@@ -60,7 +64,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	public onMessage(type: string, body: any) {
 		switch (type) {
 			case 'read':
@@ -80,7 +83,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	private async emitTypers() {
 		const now = new Date();
 
@@ -97,7 +99,6 @@ export default class extends Channel {
 		});
 	}
 
-	@autobind
 	public dispose() {
 		this.subscriber.off(this.subCh, this.onEvent);
 
diff --git a/packages/backend/src/server/api/stream/channels/queue-stats.ts b/packages/backend/src/server/api/stream/channels/queue-stats.ts
index be18438fa3..043d03ab8d 100644
--- a/packages/backend/src/server/api/stream/channels/queue-stats.ts
+++ b/packages/backend/src/server/api/stream/channels/queue-stats.ts
@@ -1,25 +1,27 @@
-import autobind from 'autobind-decorator';
-import Xev from 'xev';
-import Channel from '../channel';
+import { default as Xev } from 'xev';
+import Channel from '../channel.js';
 
-const ev = new Xev();
+const ev = new Xev.default();
 
 export default class extends Channel {
 	public readonly chName = 'queueStats';
 	public static shouldShare = true;
 	public static requireCredential = false;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onStats = this.onStats.bind(this);
+		this.onMessage = this.onMessage.bind(this);
+	}
+
 	public async init(params: any) {
 		ev.addListener('queueStats', this.onStats);
 	}
 
-	@autobind
 	private onStats(stats: any) {
 		this.send('stats', stats);
 	}
 
-	@autobind
 	public onMessage(type: string, body: any) {
 		switch (type) {
 			case 'requestLog':
@@ -34,7 +36,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	public dispose() {
 		ev.removeListener('queueStats', this.onStats);
 	}
diff --git a/packages/backend/src/server/api/stream/channels/server-stats.ts b/packages/backend/src/server/api/stream/channels/server-stats.ts
index df89b4c750..0da1895767 100644
--- a/packages/backend/src/server/api/stream/channels/server-stats.ts
+++ b/packages/backend/src/server/api/stream/channels/server-stats.ts
@@ -1,25 +1,27 @@
-import autobind from 'autobind-decorator';
-import Xev from 'xev';
-import Channel from '../channel';
+import { default as Xev } from 'xev';
+import Channel from '../channel.js';
 
-const ev = new Xev();
+const ev = new Xev.default();
 
 export default class extends Channel {
 	public readonly chName = 'serverStats';
 	public static shouldShare = true;
 	public static requireCredential = false;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.onStats = this.onStats.bind(this);
+		this.onMessage = this.onMessage.bind(this);
+	}
+
 	public async init(params: any) {
 		ev.addListener('serverStats', this.onStats);
 	}
 
-	@autobind
 	private onStats(stats: any) {
 		this.send('stats', stats);
 	}
 
-	@autobind
 	public onMessage(type: string, body: any) {
 		switch (type) {
 			case 'requestLog':
@@ -34,7 +36,6 @@ export default class extends Channel {
 		}
 	}
 
-	@autobind
 	public dispose() {
 		ev.removeListener('serverStats', this.onStats);
 	}
diff --git a/packages/backend/src/server/api/stream/channels/user-list.ts b/packages/backend/src/server/api/stream/channels/user-list.ts
index b75920a180..57523c8488 100644
--- a/packages/backend/src/server/api/stream/channels/user-list.ts
+++ b/packages/backend/src/server/api/stream/channels/user-list.ts
@@ -1,10 +1,9 @@
-import autobind from 'autobind-decorator';
-import Channel from '../channel';
-import { Notes, UserListJoinings, UserLists } from '@/models/index';
-import { isMutedUserRelated } from '@/misc/is-muted-user-related';
-import { User } from '@/models/entities/user';
-import { isBlockerUserRelated } from '@/misc/is-blocker-user-related';
-import { Packed } from '@/misc/schema';
+import Channel from '../channel.js';
+import { Notes, UserListJoinings, UserLists } from '@/models/index.js';
+import { isMutedUserRelated } from '@/misc/is-muted-user-related.js';
+import { User } from '@/models/entities/user.js';
+import { isBlockerUserRelated } from '@/misc/is-blocker-user-related.js';
+import { Packed } from '@/misc/schema.js';
 
 export default class extends Channel {
 	public readonly chName = 'userList';
@@ -14,7 +13,12 @@ export default class extends Channel {
 	public listUsers: User['id'][] = [];
 	private listUsersClock: NodeJS.Timer;
 
-	@autobind
+	constructor(id: string, connection: Channel['connection']) {
+		super(id, connection);
+		this.updateListUsers = this.updateListUsers.bind(this);
+		this.onNote = this.onNote.bind(this);
+	}
+
 	public async init(params: any) {
 		this.listId = params.listId as string;
 
@@ -34,7 +38,6 @@ export default class extends Channel {
 		this.listUsersClock = setInterval(this.updateListUsers, 5000);
 	}
 
-	@autobind
 	private async updateListUsers() {
 		const users = await UserListJoinings.find({
 			where: {
@@ -46,7 +49,6 @@ export default class extends Channel {
 		this.listUsers = users.map(x => x.userId);
 	}
 
-	@autobind
 	private async onNote(note: Packed<'Note'>) {
 		if (!this.listUsers.includes(note.userId)) return;
 
@@ -81,7 +83,6 @@ export default class extends Channel {
 		this.send('note', note);
 	}
 
-	@autobind
 	public dispose() {
 		// Unsubscribe events
 		this.subscriber.off(`userListStream:${this.listId}`, this.send);
diff --git a/packages/backend/src/server/api/stream/index.ts b/packages/backend/src/server/api/stream/index.ts
index e0bb8033a2..0cb38e2a99 100644
--- a/packages/backend/src/server/api/stream/index.ts
+++ b/packages/backend/src/server/api/stream/index.ts
@@ -1,21 +1,20 @@
-import autobind from 'autobind-decorator';
 import * as websocket from 'websocket';
-import { readNotification } from '../common/read-notification';
-import call from '../call';
-import readNote from '@/services/note/read';
-import Channel from './channel';
-import channels from './channels/index';
+import { readNotification } from '../common/read-notification.js';
+import call from '../call.js';
+import readNote from '@/services/note/read.js';
+import Channel from './channel.js';
+import channels from './channels/index.js';
 import { EventEmitter } from 'events';
-import { User } from '@/models/entities/user';
-import { Channel as ChannelModel } from '@/models/entities/channel';
-import { Users, Followings, Mutings, UserProfiles, ChannelFollowings, Blockings } from '@/models/index';
-import { ApiError } from '../error';
-import { AccessToken } from '@/models/entities/access-token';
-import { UserProfile } from '@/models/entities/user-profile';
-import { publishChannelStream, publishGroupMessagingStream, publishMessagingStream } from '@/services/stream';
-import { UserGroup } from '@/models/entities/user-group';
-import { StreamEventEmitter, StreamMessages } from './types';
-import { Packed } from '@/misc/schema';
+import { User } from '@/models/entities/user.js';
+import { Channel as ChannelModel } from '@/models/entities/channel.js';
+import { Users, Followings, Mutings, UserProfiles, ChannelFollowings, Blockings } from '@/models/index.js';
+import { ApiError } from '../error.js';
+import { AccessToken } from '@/models/entities/access-token.js';
+import { UserProfile } from '@/models/entities/user-profile.js';
+import { publishChannelStream, publishGroupMessagingStream, publishMessagingStream } from '@/services/stream.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { StreamEventEmitter, StreamMessages } from './types.js';
+import { Packed } from '@/misc/schema.js';
 
 /**
  * Main stream connection
@@ -38,13 +37,18 @@ export default class Connection {
 		wsConnection: websocket.connection,
 		subscriber: EventEmitter,
 		user: User | null | undefined,
-		token: AccessToken | null | undefined
+		token: AccessToken | null | undefined,
 	) {
 		this.wsConnection = wsConnection;
 		this.subscriber = subscriber;
 		if (user) this.user = user;
 		if (token) this.token = token;
 
+		this.onWsConnectionMessage = this.onWsConnectionMessage.bind(this);
+		this.onUserEvent = this.onUserEvent.bind(this);
+		this.onNoteStreamMessage = this.onNoteStreamMessage.bind(this);
+		this.onBroadcastMessage = this.onBroadcastMessage.bind(this);
+
 		this.wsConnection.on('message', this.onWsConnectionMessage);
 
 		this.subscriber.on('broadcast', data => {
@@ -62,7 +66,6 @@ export default class Connection {
 		}
 	}
 
-	@autobind
 	private onUserEvent(data: StreamMessages['user']['payload']) { // { type, body }と展開するとそれぞれ型が分離してしまう
 		switch (data.type) {
 			case 'follow':
@@ -108,7 +111,6 @@ export default class Connection {
 	/**
 	 * クライアントからメッセージ受信時
 	 */
-	@autobind
 	private async onWsConnectionMessage(data: websocket.Message) {
 		if (data.type !== 'utf8') return;
 		if (data.utf8Data == null) return;
@@ -144,12 +146,10 @@ export default class Connection {
 		}
 	}
 
-	@autobind
 	private onBroadcastMessage(data: StreamMessages['broadcast']['payload']) {
 		this.sendMessageToWs(data.type, data.body);
 	}
 
-	@autobind
 	public cacheNote(note: Packed<'Note'>) {
 		const add = (note: Packed<'Note'>) => {
 			const existIndex = this.cachedNotes.findIndex(n => n.id === note.id);
@@ -169,7 +169,6 @@ export default class Connection {
 		if (note.renote) add(note.renote);
 	}
 
-	@autobind
 	private readNote(body: any) {
 		const id = body.id;
 
@@ -187,7 +186,6 @@ export default class Connection {
 	/**
 	 * APIリクエスト要求時
 	 */
-	@autobind
 	private async onApiRequest(payload: any) {
 		// 新鮮なデータを利用するためにユーザーをフェッチ
 		const user = this.user ? await Users.findOne(this.user.id) : null;
@@ -210,7 +208,6 @@ export default class Connection {
 		});
 	}
 
-	@autobind
 	private onReadNotification(payload: any) {
 		if (!payload.id) return;
 		readNotification(this.user!.id, [payload.id]);
@@ -219,7 +216,6 @@ export default class Connection {
 	/**
 	 * 投稿購読要求時
 	 */
-	@autobind
 	private onSubscribeNote(payload: any) {
 		if (!payload.id) return;
 
@@ -237,7 +233,6 @@ export default class Connection {
 	/**
 	 * 投稿購読解除要求時
 	 */
-	@autobind
 	private onUnsubscribeNote(payload: any) {
 		if (!payload.id) return;
 
@@ -248,7 +243,6 @@ export default class Connection {
 		}
 	}
 
-	@autobind
 	private async onNoteStreamMessage(data: StreamMessages['note']['payload']) {
 		this.sendMessageToWs('noteUpdated', {
 			id: data.body.id,
@@ -260,7 +254,6 @@ export default class Connection {
 	/**
 	 * チャンネル接続要求時
 	 */
-	@autobind
 	private onChannelConnectRequested(payload: any) {
 		const { channel, id, params, pong } = payload;
 		this.connectChannel(id, params, channel, pong);
@@ -269,7 +262,6 @@ export default class Connection {
 	/**
 	 * チャンネル切断要求時
 	 */
-	@autobind
 	private onChannelDisconnectRequested(payload: any) {
 		const { id } = payload;
 		this.disconnectChannel(id);
@@ -278,7 +270,6 @@ export default class Connection {
 	/**
 	 * クライアントにメッセージ送信
 	 */
-	@autobind
 	public sendMessageToWs(type: string, payload: any) {
 		this.wsConnection.send(JSON.stringify({
 			type: type,
@@ -289,7 +280,6 @@ export default class Connection {
 	/**
 	 * チャンネルに接続
 	 */
-	@autobind
 	public connectChannel(id: string, params: any, channel: string, pong = false) {
 		if ((channels as any)[channel].requireCredential && this.user == null) {
 			return;
@@ -315,7 +305,6 @@ export default class Connection {
 	 * チャンネルから切断
 	 * @param id チャンネルコネクションID
 	 */
-	@autobind
 	public disconnectChannel(id: string) {
 		const channel = this.channels.find(c => c.id === id);
 
@@ -329,7 +318,6 @@ export default class Connection {
 	 * チャンネルへメッセージ送信要求時
 	 * @param data メッセージ
 	 */
-	@autobind
 	private onChannelMessageRequested(data: any) {
 		const channel = this.channels.find(c => c.id === data.id);
 		if (channel != null && channel.onMessage != null) {
@@ -337,14 +325,12 @@ export default class Connection {
 		}
 	}
 
-	@autobind
 	private typingOnChannel(channel: ChannelModel['id']) {
 		if (this.user) {
 			publishChannelStream(channel, 'typing', this.user.id);
 		}
 	}
 
-	@autobind
 	private typingOnMessaging(param: { partner?: User['id']; group?: UserGroup['id']; }) {
 		if (this.user) {
 			if (param.partner) {
@@ -355,7 +341,6 @@ export default class Connection {
 		}
 	}
 
-	@autobind
 	private async updateFollowing() {
 		const followings = await Followings.find({
 			where: {
@@ -367,7 +352,6 @@ export default class Connection {
 		this.following = new Set<string>(followings.map(x => x.followeeId));
 	}
 
-	@autobind
 	private async updateMuting() {
 		const mutings = await Mutings.find({
 			where: {
@@ -379,7 +363,6 @@ export default class Connection {
 		this.muting = new Set<string>(mutings.map(x => x.muteeId));
 	}
 
-	@autobind
 	private async updateBlocking() { // ここでいうBlockingは被Blockingの意
 		const blockings = await Blockings.find({
 			where: {
@@ -391,7 +374,6 @@ export default class Connection {
 		this.blocking = new Set<string>(blockings.map(x => x.blockerId));
 	}
 
-	@autobind
 	private async updateFollowingChannels() {
 		const followings = await ChannelFollowings.find({
 			where: {
@@ -403,7 +385,6 @@ export default class Connection {
 		this.followingChannels = new Set<string>(followings.map(x => x.followeeId));
 	}
 
-	@autobind
 	private async updateUserProfile() {
 		this.userProfile = await UserProfiles.findOne({
 			userId: this.user!.id,
@@ -413,7 +394,6 @@ export default class Connection {
 	/**
 	 * ストリームが切れたとき
 	 */
-	@autobind
 	public dispose() {
 		for (const c of this.channels.filter(c => c.dispose)) {
 			if (c.dispose) c.dispose();
diff --git a/packages/backend/src/server/api/stream/types.ts b/packages/backend/src/server/api/stream/types.ts
index 921856b38d..90cf59038d 100644
--- a/packages/backend/src/server/api/stream/types.ts
+++ b/packages/backend/src/server/api/stream/types.ts
@@ -1,20 +1,20 @@
 import { EventEmitter } from 'events';
 import Emitter from 'strict-event-emitter-types';
-import { Channel } from '@/models/entities/channel';
-import { User } from '@/models/entities/user';
-import { UserProfile } from '@/models/entities/user-profile';
-import { Note } from '@/models/entities/note';
-import { Antenna } from '@/models/entities/antenna';
-import { DriveFile } from '@/models/entities/drive-file';
-import { DriveFolder } from '@/models/entities/drive-folder';
-import { Emoji } from '@/models/entities/emoji';
-import { UserList } from '@/models/entities/user-list';
-import { MessagingMessage } from '@/models/entities/messaging-message';
-import { UserGroup } from '@/models/entities/user-group';
-import { AbuseUserReport } from '@/models/entities/abuse-user-report';
-import { Signin } from '@/models/entities/signin';
-import { Page } from '@/models/entities/page';
-import { Packed } from '@/misc/schema';
+import { Channel } from '@/models/entities/channel.js';
+import { User } from '@/models/entities/user.js';
+import { UserProfile } from '@/models/entities/user-profile.js';
+import { Note } from '@/models/entities/note.js';
+import { Antenna } from '@/models/entities/antenna.js';
+import { DriveFile } from '@/models/entities/drive-file.js';
+import { DriveFolder } from '@/models/entities/drive-folder.js';
+import { Emoji } from '@/models/entities/emoji.js';
+import { UserList } from '@/models/entities/user-list.js';
+import { MessagingMessage } from '@/models/entities/messaging-message.js';
+import { UserGroup } from '@/models/entities/user-group.js';
+import { AbuseUserReport } from '@/models/entities/abuse-user-report.js';
+import { Signin } from '@/models/entities/signin.js';
+import { Page } from '@/models/entities/page.js';
+import { Packed } from '@/misc/schema.js';
 
 //#region Stream type-body definitions
 export interface InternalStreamTypes {
diff --git a/packages/backend/src/server/api/streaming.ts b/packages/backend/src/server/api/streaming.ts
index b706b1b8df..2a34edac67 100644
--- a/packages/backend/src/server/api/streaming.ts
+++ b/packages/backend/src/server/api/streaming.ts
@@ -1,14 +1,14 @@
 import * as http from 'http';
 import * as websocket from 'websocket';
 
-import MainStreamConnection from './stream/index';
+import MainStreamConnection from './stream/index.js';
 import { ParsedUrlQuery } from 'querystring';
-import authenticate from './authenticate';
+import authenticate from './authenticate.js';
 import { EventEmitter } from 'events';
-import { subsdcriber as redisClient } from '../../db/redis';
-import { Users } from '@/models/index';
+import { subsdcriber as redisClient } from '../../db/redis.js';
+import { Users } from '@/models/index.js';
 
-module.exports = (server: http.Server) => {
+export const initializeStreamingServer = (server: http.Server) => {
 	// Init websocket server
 	const ws = new websocket.server({
 		httpServer: server,
diff --git a/packages/backend/src/server/file/index.ts b/packages/backend/src/server/file/index.ts
index 6fe6110dc9..07a493700a 100644
--- a/packages/backend/src/server/file/index.ts
+++ b/packages/backend/src/server/file/index.ts
@@ -2,16 +2,15 @@
  * File Server
  */
 
-import * as fs from 'fs';
-import { fileURLToPath } from 'url';
-import { dirname } from 'path';
-import * as Koa from 'koa';
-import * as cors from '@koa/cors';
-import * as Router from '@koa/router';
-import sendDriveFile from './send-drive-file';
+import * as fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+import Koa from 'koa';
+import cors from '@koa/cors';
+import Router from '@koa/router';
+import sendDriveFile from './send-drive-file.js';
 
-//const _filename = fileURLToPath(import.meta.url);
-const _filename = __filename;
+const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 
 // Init app
@@ -38,4 +37,4 @@ router.get('/:key/(.*)', sendDriveFile);
 // Register router
 app.use(router.routes());
 
-module.exports = app;
+export default app;
diff --git a/packages/backend/src/server/file/send-drive-file.ts b/packages/backend/src/server/file/send-drive-file.ts
index f3c6c518fa..4e2bba0e20 100644
--- a/packages/backend/src/server/file/send-drive-file.ts
+++ b/packages/backend/src/server/file/send-drive-file.ts
@@ -1,23 +1,22 @@
-import * as fs from 'fs';
-import { fileURLToPath } from 'url';
-import { dirname } from 'path';
-import * as Koa from 'koa';
+import * as fs from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname } from 'node:path';
+import Koa from 'koa';
 import * as send from 'koa-send';
-import * as rename from 'rename';
+import rename from 'rename';
 import * as tmp from 'tmp';
-import { serverLogger } from '../index';
-import { contentDisposition } from '@/misc/content-disposition';
-import { DriveFiles } from '@/models/index';
-import { InternalStorage } from '@/services/drive/internal-storage';
-import { downloadUrl } from '@/misc/download-url';
-import { detectType } from '@/misc/get-file-info';
-import { convertToJpeg, convertToPng, convertToPngOrJpeg } from '@/services/drive/image-processor';
-import { GenerateVideoThumbnail } from '@/services/drive/generate-video-thumbnail';
-import { StatusError } from '@/misc/fetch';
-import { FILE_TYPE_BROWSERSAFE } from '@/const';
+import { serverLogger } from '../index.js';
+import { contentDisposition } from '@/misc/content-disposition.js';
+import { DriveFiles } from '@/models/index.js';
+import { InternalStorage } from '@/services/drive/internal-storage.js';
+import { downloadUrl } from '@/misc/download-url.js';
+import { detectType } from '@/misc/get-file-info.js';
+import { convertToJpeg, convertToPng, convertToPngOrJpeg } from '@/services/drive/image-processor.js';
+import { GenerateVideoThumbnail } from '@/services/drive/generate-video-thumbnail.js';
+import { StatusError } from '@/misc/fetch.js';
+import { FILE_TYPE_BROWSERSAFE } from '@/const.js';
 
-//const _filename = fileURLToPath(import.meta.url);
-const _filename = __filename;
+const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 
 const assets = `${_dirname}/../../server/file/assets/`;
diff --git a/packages/backend/src/server/index.ts b/packages/backend/src/server/index.ts
index 4d6b402e64..a448925b68 100644
--- a/packages/backend/src/server/index.ts
+++ b/packages/backend/src/server/index.ts
@@ -2,28 +2,32 @@
  * Core Server
  */
 
-import * as fs from 'fs';
+import * as fs from 'node:fs';
 import * as http from 'http';
 import * as http2 from 'http2';
 import * as https from 'https';
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
-import * as mount from 'koa-mount';
-import * as koaLogger from 'koa-logger';
+import Koa from 'koa';
+import Router from '@koa/router';
+import mount from 'koa-mount';
+import koaLogger from 'koa-logger';
 import * as slow from 'koa-slow';
 
-import activityPub from './activitypub';
-import nodeinfo from './nodeinfo';
-import wellKnown from './well-known';
-import config from '@/config/index';
-import apiServer from './api/index';
-import Logger from '@/services/logger';
-import { envOption } from '../env';
-import { UserProfiles, Users } from '@/models/index';
-import { genIdenticon } from '@/misc/gen-identicon';
-import { createTemp } from '@/misc/create-temp';
-import { publishMainStream } from '@/services/stream';
-import * as Acct from 'misskey-js/built/acct';
+import activityPub from './activitypub.js';
+import nodeinfo from './nodeinfo.js';
+import wellKnown from './well-known.js';
+import config from '@/config/index.js';
+import apiServer from './api/index.js';
+import fileServer from './file/index.js';
+import proxyServer from './proxy/index.js';
+import webServer from './web/index.js';
+import Logger from '@/services/logger.js';
+import { envOption } from '../env.js';
+import { UserProfiles, Users } from '@/models/index.js';
+import { genIdenticon } from '@/misc/gen-identicon.js';
+import { createTemp } from '@/misc/create-temp.js';
+import { publishMainStream } from '@/services/stream.js';
+import * as Acct from '@/misc/acct.js';
+import { initializeStreamingServer } from './api/streaming.js';
 
 export const serverLogger = new Logger('server', 'gray', false);
 
@@ -55,8 +59,8 @@ if (config.url.startsWith('https') && !config.disableHsts) {
 }
 
 app.use(mount('/api', apiServer));
-app.use(mount('/files', require('./file')));
-app.use(mount('/proxy', require('./proxy')));
+app.use(mount('/files', fileServer));
+app.use(mount('/proxy', proxyServer));
 
 // Init router
 const router = new Router();
@@ -114,7 +118,7 @@ router.get('/verify-email/:code', async ctx => {
 // Register router
 app.use(router.routes());
 
-app.use(mount(require('./web')));
+app.use(mount(webServer));
 
 function createServer() {
 	if (config.https) {
@@ -133,10 +137,8 @@ function createServer() {
 export const startServer = () => {
 	const server = createServer();
 
-	// Init stream server
-	require('./api/streaming')(server);
+	initializeStreamingServer(server);
 
-	// Listen
 	server.listen(config.port);
 
 	return server;
@@ -145,9 +147,7 @@ export const startServer = () => {
 export default () => new Promise(resolve => {
 	const server = createServer();
 
-	// Init stream server
-	require('./api/streaming')(server);
+	initializeStreamingServer(server);
 
-	// Listen
 	server.listen(config.port, resolve);
 });
diff --git a/packages/backend/src/server/nodeinfo.ts b/packages/backend/src/server/nodeinfo.ts
index 25eca291db..f4b56fc8a5 100644
--- a/packages/backend/src/server/nodeinfo.ts
+++ b/packages/backend/src/server/nodeinfo.ts
@@ -1,9 +1,9 @@
-import * as Router from '@koa/router';
-import config from '@/config/index';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { Users, Notes } from '@/models/index';
+import Router from '@koa/router';
+import config from '@/config/index.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { Users, Notes } from '@/models/index.js';
 import { MoreThan } from 'typeorm';
-import { MAX_NOTE_TEXT_LENGTH } from '@/const';
+import { MAX_NOTE_TEXT_LENGTH } from '@/const.js';
 
 const router = new Router();
 
diff --git a/packages/backend/src/server/proxy/index.ts b/packages/backend/src/server/proxy/index.ts
index 7a3094311c..506ba10ef1 100644
--- a/packages/backend/src/server/proxy/index.ts
+++ b/packages/backend/src/server/proxy/index.ts
@@ -2,10 +2,10 @@
  * Media Proxy
  */
 
-import * as Koa from 'koa';
-import * as cors from '@koa/cors';
-import * as Router from '@koa/router';
-import { proxyMedia } from './proxy-media';
+import Koa from 'koa';
+import cors from '@koa/cors';
+import Router from '@koa/router';
+import { proxyMedia } from './proxy-media.js';
 
 // Init app
 const app = new Koa();
@@ -23,4 +23,4 @@ router.get('/:url*', proxyMedia);
 // Register router
 app.use(router.routes());
 
-module.exports = app;
+export default app;
diff --git a/packages/backend/src/server/proxy/proxy-media.ts b/packages/backend/src/server/proxy/proxy-media.ts
index b7dcd0292b..3cc5b827a6 100644
--- a/packages/backend/src/server/proxy/proxy-media.ts
+++ b/packages/backend/src/server/proxy/proxy-media.ts
@@ -1,12 +1,12 @@
-import * as fs from 'fs';
-import * as Koa from 'koa';
-import { serverLogger } from '../index';
-import { IImage, convertToPng, convertToJpeg } from '@/services/drive/image-processor';
-import { createTemp } from '@/misc/create-temp';
-import { downloadUrl } from '@/misc/download-url';
-import { detectType } from '@/misc/get-file-info';
-import { StatusError } from '@/misc/fetch';
-import { FILE_TYPE_BROWSERSAFE } from '@/const';
+import * as fs from 'node:fs';
+import Koa from 'koa';
+import { serverLogger } from '../index.js';
+import { IImage, convertToPng, convertToJpeg } from '@/services/drive/image-processor.js';
+import { createTemp } from '@/misc/create-temp.js';
+import { downloadUrl } from '@/misc/download-url.js';
+import { detectType } from '@/misc/get-file-info.js';
+import { StatusError } from '@/misc/fetch.js';
+import { FILE_TYPE_BROWSERSAFE } from '@/const.js';
 
 export async function proxyMedia(ctx: Koa.Context) {
 	const url = 'url' in ctx.query ? ctx.query.url : 'https://' + ctx.params.url;
diff --git a/packages/backend/src/server/web/feed.ts b/packages/backend/src/server/web/feed.ts
index db589e086b..b98e3f8bf6 100644
--- a/packages/backend/src/server/web/feed.ts
+++ b/packages/backend/src/server/web/feed.ts
@@ -1,7 +1,7 @@
 import { Feed } from 'feed';
-import config from '@/config/index';
-import { User } from '@/models/entities/user';
-import { Notes, DriveFiles, UserProfiles } from '@/models/index';
+import config from '@/config/index.js';
+import { User } from '@/models/entities/user.js';
+import { Notes, DriveFiles, UserProfiles } from '@/models/index.js';
 import { In } from 'typeorm';
 
 export default async function(user: User) {
diff --git a/packages/backend/src/server/web/index.ts b/packages/backend/src/server/web/index.ts
index 325121bbaf..cc4c2cc9ca 100644
--- a/packages/backend/src/server/web/index.ts
+++ b/packages/backend/src/server/web/index.ts
@@ -2,24 +2,26 @@
  * Web Client Server
  */
 
-import { dirname } from 'path';
+import { dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
 import ms from 'ms';
-import * as Koa from 'koa';
-import * as Router from '@koa/router';
-import * as send from 'koa-send';
-import * as favicon from 'koa-favicon';
-import * as views from 'koa-views';
+import Koa from 'koa';
+import Router from '@koa/router';
+import send from 'koa-send';
+import favicon from 'koa-favicon';
+import views from 'koa-views';
 
-import packFeed from './feed';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { genOpenapiSpec } from '../api/openapi/gen-spec';
-import config from '@/config/index';
-import { Users, Notes, UserProfiles, Pages, Channels, Clips, GalleryPosts } from '@/models/index';
-import * as Acct from 'misskey-js/built/acct';
-import { getNoteSummary } from '@/misc/get-note-summary';
+import packFeed from './feed.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { genOpenapiSpec } from '../api/openapi/gen-spec.js';
+import config from '@/config/index.js';
+import { Users, Notes, UserProfiles, Pages, Channels, Clips, GalleryPosts } from '@/models/index.js';
+import * as Acct from '@/misc/acct.js';
+import { getNoteSummary } from '@/misc/get-note-summary.js';
+import { urlPreviewHandler } from './url-preview.js';
+import { manifestHandler } from './manifest.js';
 
-//const _filename = fileURLToPath(import.meta.url);
-const _filename = __filename;
+const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 
 const staticAssets = `${_dirname}/../../../assets/`;
@@ -105,7 +107,7 @@ router.get('/sw.js', async ctx => {
 });
 
 // Manifest
-router.get('/manifest.json', require('./manifest'));
+router.get('/manifest.json', manifestHandler);
 
 router.get('/robots.txt', async ctx => {
 	await send(ctx as any, '/robots.txt', {
@@ -123,7 +125,7 @@ router.get('/api-doc', async ctx => {
 });
 
 // URL preview endpoint
-router.get('/url', require('./url-preview'));
+router.get('/url', urlPreviewHandler);
 
 router.get('/api.json', async ctx => {
 	ctx.body = genOpenapiSpec();
@@ -426,4 +428,4 @@ router.get('(.*)', async ctx => {
 // Register router
 app.use(router.routes());
 
-module.exports = app;
+export default app;
diff --git a/packages/backend/src/server/web/manifest.ts b/packages/backend/src/server/web/manifest.ts
index 464b893d6b..db3e7a9673 100644
--- a/packages/backend/src/server/web/manifest.ts
+++ b/packages/backend/src/server/web/manifest.ts
@@ -1,8 +1,8 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 import * as manifest from './manifest.json';
-import { fetchMeta } from '@/misc/fetch-meta';
+import { fetchMeta } from '@/misc/fetch-meta.js';
 
-module.exports = async (ctx: Koa.Context) => {
+export const manifestHandler = async (ctx: Koa.Context) => {
 	const json = JSON.parse(JSON.stringify(manifest));
 
 	const instance = await fetchMeta(true);
diff --git a/packages/backend/src/server/web/url-preview.ts b/packages/backend/src/server/web/url-preview.ts
index 26fffbea88..592e6bad54 100644
--- a/packages/backend/src/server/web/url-preview.ts
+++ b/packages/backend/src/server/web/url-preview.ts
@@ -1,14 +1,14 @@
-import * as Koa from 'koa';
+import Koa from 'koa';
 import summaly from 'summaly';
-import { fetchMeta } from '@/misc/fetch-meta';
-import Logger from '@/services/logger';
-import config from '@/config/index';
-import { query } from '@/prelude/url';
-import { getJson } from '@/misc/fetch';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import Logger from '@/services/logger.js';
+import config from '@/config/index.js';
+import { query } from '@/prelude/url.js';
+import { getJson } from '@/misc/fetch.js';
 
 const logger = new Logger('url-preview');
 
-module.exports = async (ctx: Koa.Context) => {
+export const urlPreviewHandler = async (ctx: Koa.Context) => {
 	const url = ctx.query.url;
 	if (typeof url !== 'string') {
 		ctx.status = 400;
diff --git a/packages/backend/src/server/well-known.ts b/packages/backend/src/server/well-known.ts
index d1f13b70bb..7a5d085413 100644
--- a/packages/backend/src/server/well-known.ts
+++ b/packages/backend/src/server/well-known.ts
@@ -1,11 +1,11 @@
-import * as Router from '@koa/router';
+import Router from '@koa/router';
 
-import config from '@/config/index';
-import * as Acct from 'misskey-js/built/acct';
-import { links } from './nodeinfo';
-import { escapeAttribute, escapeValue } from '@/prelude/xml';
-import { Users } from '@/models/index';
-import { User } from '@/models/entities/user';
+import config from '@/config/index.js';
+import * as Acct from '@/misc/acct.js';
+import { links } from './nodeinfo.js';
+import { escapeAttribute, escapeValue } from '@/prelude/xml.js';
+import { Users } from '@/models/index.js';
+import { User } from '@/models/entities/user.js';
 
 // Init router
 const router = new Router();