add moderation logs for many endpoints

- `/admin/delete-all-files-of-a-user`
- `/admin/nsfw-user`
- `/admin/unnsfw-user`
- `/admin/silence-user`
- `/admin/unsilence-user`
- `/admin/accounts/create`
- `/admin/drive/clean-remote-files`
- `/admin/drive/cleanup`
- `/admin/emoji/set-category-bulk`
- `/admin/emoji/set-license-bulk`
- `/admin/emoji/set-aliases-bulk`
- `/admin/emoji/add-aliases-bulk`
- `/admin/emoji/remove-aliases-bulk`
- `/admin/emoji/import-zip`
- `/admin/federation/delete-all-files`
- `/admin/federation/remove-all-following`
- `/admin/promo/create`
- `/admin/relay/add`
- `/admin/relay/remove`

25 files changed, 480 insertions, 43 deletions

diff --git a/locales/index.d.ts b/locales/index.d.ts
index 6a2790c9af..4907754394 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1403,7 +1403,7 @@ export interface Locale extends ILocale {
      */
     "inputNewFileName": string;
     /**
-     * 新しいキャプションを入力してください
+     * Enter new alt text
      */
     "inputNewDescription": string;
     /**
@@ -2603,11 +2603,11 @@ export interface Locale extends ILocale {
      */
     "description": string;
     /**
-     * キャプションを付ける
+     * Add alt text
      */
     "describeFile": string;
     /**
-     * キャプションを入力
+     * Enter alt text
      */
     "enterFileDescription": string;
     /**
@@ -4084,7 +4084,7 @@ export interface Locale extends ILocale {
      */
     "windowRestore": string;
     /**
-     * キャプション
+     * Alt text
      */
     "caption": string;
     /**
@@ -10254,6 +10254,66 @@ export interface Locale extends ILocale {
          * Allowed quote posts from user
          */
         "allowQuotesUser": string;
+        /**
+         * Cleared a user's drive files
+         */
+        "clearUserFiles": string;
+        /**
+         * Marked user as NSFW
+         */
+        "nsfwUser": string;
+        /**
+         * Un-marked user as NSFW
+         */
+        "unNsfwUser": string;
+        /**
+         * Silenced user
+         */
+        "silenceUser": string;
+        /**
+         * Un-silenced user
+         */
+        "unSilenceUser": string;
+        /**
+         * Created an account
+         */
+        "createAccount": string;
+        /**
+         * Cleared remote drive files
+         */
+        "clearRemoteFiles": string;
+        /**
+         * Cleared owner-less drive files
+         */
+        "clearOwnerlessFiles": string;
+        /**
+         * Updated custom emojis
+         */
+        "updateCustomEmojis": string;
+        /**
+         * Imported custom emojis
+         */
+        "importCustomEmojis": string;
+        /**
+         * Cleared an instance's drive files
+         */
+        "clearInstanceFiles": string;
+        /**
+         * Severed follow relations with an instance
+         */
+        "severFollowRelations": string;
+        /**
+         * Created a note promo
+         */
+        "createPromo": string;
+        /**
+         * Added a relay
+         */
+        "addRelay": string;
+        /**
+         * Removed a relay
+         */
+        "removeRelay": string;
     };
     "_fileViewer": {
         /**
@@ -11601,6 +11661,10 @@ export interface Locale extends ILocale {
      * Flash
      */
     "flash": string;
+    /**
+     * Files removed:
+     */
+    "filesRemoved": string;
     "_flash": {
         /**
          * Flash Content Hidden
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 5843457676..1a47f56bc6 100644
--- a/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/accounts/create.ts
@@ -15,6 +15,7 @@ import type { Config } from '@/config.js';
 import { ApiError } from '@/server/api/error.js';
 import { Packed } from '@/misc/json-schema.js';
 import { RoleService } from '@/core/RoleService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -96,6 +97,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private userEntityService: UserEntityService,
 		private signupService: SignupService,
 		private instanceActorService: InstanceActorService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, _me, token) => {
 			const me = _me ? await this.usersRepository.findOneByOrFail({ id: _me.id }) : null;
@@ -137,6 +139,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				approved: true,
 			});
 
+			if (me) {
+				await this.moderationLogService.log(me, 'createAccount', {
+					userId: account.id,
+					userUsername: account.username,
+				});
+			}
+
 			const res = await this.userEntityService.pack(account, account, {
 				schema: 'MeDetailed',
 				includeSecrets: true,
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 747c9f48d0..8b4a450ccb 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
@@ -8,6 +8,8 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { DriveFilesRepository } from '@/models/_.js';
 import { DriveService } from '@/core/DriveService.js';
 import { DI } from '@/di-symbols.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { CacheService } from '@/core/CacheService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -30,14 +32,23 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.driveFilesRepository)
 		private driveFilesRepository: DriveFilesRepository,
-
+		private readonly cacheService: CacheService,
+		private readonly moderationLogService: ModerationLogService,
 		private driveService: DriveService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			const user = await this.cacheService.findUserById(ps.userId);
 			const files = await this.driveFilesRepository.findBy({
 				userId: ps.userId,
 			});
 
+			await this.moderationLogService.log(me, 'clearUserFiles', {
+				userId: ps.userId,
+				userUsername: user.username,
+				userHost: user.host,
+				count: files.length,
+			});
+
 			for (const file of files) {
 				this.driveService.deleteFile(file, false, me);
 			}
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 d420a929bd..9a7b3d5d62 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
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueueService } from '@/core/QueueService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -25,9 +26,11 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private queueService: QueueService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			this.queueService.createCleanRemoteFilesJob();
+			await this.moderationLogService.log(me, 'clearRemoteFiles', {});
+			await this.queueService.createCleanRemoteFilesJob();
 		});
 	}
 }
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 d612572e2e..f5d20366cf 100644
--- a/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts
+++ b/packages/backend/src/server/api/endpoints/admin/drive/cleanup.ts
@@ -9,6 +9,7 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { DriveFilesRepository } from '@/models/_.js';
 import { DriveService } from '@/core/DriveService.js';
 import { DI } from '@/di-symbols.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -29,7 +30,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.driveFilesRepository)
 		private driveFilesRepository: DriveFilesRepository,
-
+		private readonly moderationLogService: ModerationLogService,
 		private driveService: DriveService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -37,6 +38,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				userId: IsNull(),
 			});
 
+			await this.moderationLogService.log(me, 'clearOwnerlessFiles', {
+				count: files.length,
+			});
+
 			for (const file of files) {
 				this.driveService.deleteFile(file);
 			}
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 f4fc79bdb3..795b579041 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
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -32,8 +33,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private customEmojiService: CustomEmojiService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			await this.moderationLogService.log(me, 'updateCustomEmojis', {
+				ids: ps.ids,
+				addAliases: ps.aliases,
+			});
 			await this.customEmojiService.addAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
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 8e5f69c894..b3dc3978d1 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
@@ -3,9 +3,12 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueueService } from '@/core/QueueService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import type { DriveFilesRepository } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
 
 export const meta = {
 	secure: true,
@@ -25,9 +28,17 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private queueService: QueueService,
+		private readonly moderationLogService: ModerationLogService,
+		@Inject(DI.driveFilesRepository)
+		private readonly driveFilesRepository: DriveFilesRepository,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			this.queueService.createImportCustomEmojisJob(me, ps.fileId);
+			const file = await driveFilesRepository.findOneByOrFail({ id: ps.fileId });
+			await this.moderationLogService.log(me, 'importCustomEmojis', {
+				fileId: file.id,
+				fileName: file.name,
+			});
+			await this.queueService.createImportCustomEmojisJob(me, ps.fileId);
 		});
 	}
 }
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 e78620eac1..066eb1c7d9 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
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -32,8 +33,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private customEmojiService: CustomEmojiService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			await this.moderationLogService.log(me, 'updateCustomEmojis', {
+				ids: ps.ids,
+				delAliases: ps.aliases,
+			});
 			await this.customEmojiService.removeAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
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 69fc8e0cb5..8980ef0c86 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
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -32,8 +33,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private customEmojiService: CustomEmojiService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			await this.moderationLogService.log(me, 'updateCustomEmojis', {
+				ids: ps.ids,
+				setAliases: ps.aliases,
+			});
 			await this.customEmojiService.setAliasesBulk(ps.ids, ps.aliases.map(a => a.normalize('NFC')));
 		});
 	}
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 679a9f9c42..2510349210 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
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -34,8 +35,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private customEmojiService: CustomEmojiService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			await this.moderationLogService.log(me, 'updateCustomEmojis', {
+				ids: ps.ids,
+				category: ps.category,
+			});
 			await this.customEmojiService.setCategoryBulk(ps.ids, ps.category?.normalize('NFC') ?? null);
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts b/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
index 4ba99faab7..a0205ae24a 100644
--- a/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
+++ b/packages/backend/src/server/api/endpoints/admin/emoji/set-license-bulk.ts
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -34,8 +35,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private customEmojiService: CustomEmojiService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			await this.moderationLogService.log(me, 'updateCustomEmojis', {
+				ids: ps.ids,
+				license: ps.license,
+			});
 			await this.customEmojiService.setLicenseBulk(ps.ids, ps.license ?? null);
 		});
 	}
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 4a54c26009..89fd4be99c 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
@@ -8,6 +8,7 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { DriveFilesRepository } from '@/models/_.js';
 import { DriveService } from '@/core/DriveService.js';
 import { DI } from '@/di-symbols.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -30,7 +31,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.driveFilesRepository)
 		private driveFilesRepository: DriveFilesRepository,
-
+		private readonly moderationLogService: ModerationLogService,
 		private driveService: DriveService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -38,6 +39,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				userHost: ps.host,
 			});
 
+			await this.moderationLogService.log(me, 'clearInstanceFiles', {
+				host: ps.host,
+				count: files.length,
+			});
+
 			for (const file of files) {
 				this.driveService.deleteFile(file);
 			}
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 601c898f52..e5d85e1d57 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
@@ -8,6 +8,7 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { FollowingsRepository, UsersRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { QueueService } from '@/core/QueueService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -35,6 +36,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private followingsRepository: FollowingsRepository,
 
 		private queueService: QueueService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const followings = await this.followingsRepository.findBy([
@@ -51,6 +53,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				this.usersRepository.findOneByOrFail({ id: f.followeeId }),
 			]).then(([from, to]) => [{ id: from.id }, { id: to.id }])));
 
+			await this.moderationLogService.log(me, 'severFollowRelations', {
+				host: ps.host,
+			});
+
 			this.queueService.createUnfollowJob(pairs.map(p => ({ from: p[0], to: p[1], silent: true })));
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/admin/nsfw-user.ts b/packages/backend/src/server/api/endpoints/admin/nsfw-user.ts
index f64ba7f48a..194e793eda 100644
--- a/packages/backend/src/server/api/endpoints/admin/nsfw-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/nsfw-user.ts
@@ -5,9 +5,10 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { UsersRepository, UserProfilesRepository } from '@/models/_.js';
+import type { UserProfilesRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { CacheService } from '@/core/CacheService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -28,20 +29,19 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		@Inject(DI.usersRepository)
-		private readonly usersRepository: UsersRepository,
-
 		@Inject(DI.userProfilesRepository)
 		private readonly userProfilesRepository: UserProfilesRepository,
-
+		private readonly moderationLogService: ModerationLogService,
 		private readonly cacheService: CacheService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const user = await this.usersRepository.findOneBy({ id: ps.userId });
+			const user = await this.cacheService.findUserById(ps.userId);
 
-			if (user == null) {
-				throw new Error('user not found');
-			}
+			await this.moderationLogService.log(me, 'nsfwUser', {
+				userId: ps.userId,
+				userUsername: user.username,
+				userHost: user.host,
+			});
 
 			await this.userProfilesRepository.update(user.id, {
 				alwaysMarkNsfw: true,
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 1d32c6cc00..69891d5454 100644
--- a/packages/backend/src/server/api/endpoints/admin/promo/create.ts
+++ b/packages/backend/src/server/api/endpoints/admin/promo/create.ts
@@ -8,6 +8,8 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { PromoNotesRepository } from '@/models/_.js';
 import { GetterService } from '@/server/api/GetterService.js';
 import { DI } from '@/di-symbols.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { CacheService } from '@/core/CacheService.js';
 import { ApiError } from '../../../error.js';
 
 export const meta = {
@@ -46,7 +48,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.promoNotesRepository)
 		private promoNotesRepository: PromoNotesRepository,
-
+		private readonly moderationLogService: ModerationLogService,
+		private readonly cacheService: CacheService,
 		private getterService: GetterService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
@@ -61,6 +64,15 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.alreadyPromoted);
 			}
 
+			const user = await this.cacheService.findUserById(note.userId);
+			await this.moderationLogService.log(me, 'createPromo', {
+				noteId: note.id,
+				noteUserId: user.id,
+				noteUserUsername: user.username,
+				noteUserHost: user.host,
+				note: note,
+			});
+
 			await this.promoNotesRepository.insert({
 				noteId: note.id,
 				expiresAt: new Date(ps.expiresAt),
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 3d7bc4567e..129f69aca9 100644
--- a/packages/backend/src/server/api/endpoints/admin/relays/add.ts
+++ b/packages/backend/src/server/api/endpoints/admin/relays/add.ts
@@ -8,6 +8,7 @@ import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { RelayService } from '@/core/RelayService.js';
 import { ApiError } from '../../../error.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -64,6 +65,7 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private relayService: RelayService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			try {
@@ -72,6 +74,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.invalidUrl);
 			}
 
+			await this.moderationLogService.log(me, 'addRelay', {
+				inbox: ps.inbox,
+			});
+
 			return await this.relayService.addRelay(ps.inbox);
 		});
 	}
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 1f6e773cd4..292f21fde9 100644
--- a/packages/backend/src/server/api/endpoints/admin/relays/remove.ts
+++ b/packages/backend/src/server/api/endpoints/admin/relays/remove.ts
@@ -6,6 +6,7 @@
 import { Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { RelayService } from '@/core/RelayService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -27,9 +28,13 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		private relayService: RelayService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			return await this.relayService.removeRelay(ps.inbox);
+			await this.moderationLogService.log(me, 'removeRelay', {
+				inbox: ps.inbox,
+			});
+			await this.relayService.removeRelay(ps.inbox);
 		});
 	}
 }
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 7e6045049a..eed21c6576 100644
--- a/packages/backend/src/server/api/endpoints/admin/silence-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/silence-user.ts
@@ -8,6 +8,9 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { UsersRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
 import { RoleService } from '@/core/RoleService.js';
+import { CacheService } from '@/core/CacheService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -29,24 +32,32 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		@Inject(DI.usersRepository)
-		private usersRepository: UsersRepository,
-
-		private roleService: RoleService,
+		private readonly usersRepository: UsersRepository,
+		private readonly cacheService: CacheService,
+		private readonly moderationLogService: ModerationLogService,
+		private readonly roleService: RoleService,
+		private readonly globalEventService: GlobalEventService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const user = await this.usersRepository.findOneBy({ id: ps.userId });
-
-			if (user == null) {
-				throw new Error('user not found');
-			}
+			const user = await this.cacheService.findUserById(ps.userId);
 
 			if (await this.roleService.isModerator(user)) {
 				throw new Error('cannot silence moderator account');
 			}
 
+			await this.moderationLogService.log(me, 'silenceUser', {
+				userId: ps.userId,
+				userUsername: user.username,
+				userHost: user.host,
+			});
+
 			await this.usersRepository.update(user.id, {
 				isSilenced: true,
 			});
+
+			this.globalEventService.publishInternalEvent(user.host == null ? 'localUserUpdated' : 'remoteUserUpdated', {
+				id: user.id,
+			});
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/admin/unnsfw-user.ts b/packages/backend/src/server/api/endpoints/admin/unnsfw-user.ts
index 26588365e1..52a0c076be 100644
--- a/packages/backend/src/server/api/endpoints/admin/unnsfw-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/unnsfw-user.ts
@@ -5,8 +5,10 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { UsersRepository, UserProfilesRepository } from '@/models/_.js';
+import type { UserProfilesRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
+import { CacheService } from '@/core/CacheService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -27,18 +29,19 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		@Inject(DI.usersRepository)
-		private usersRepository: UsersRepository,
-
+		private readonly cacheService: CacheService,
+		private readonly moderationLogService: ModerationLogService,
 		@Inject(DI.userProfilesRepository)
-		private userProfilesRepository: UserProfilesRepository,
+		private readonly userProfilesRepository: UserProfilesRepository,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const user = await this.usersRepository.findOneBy({ id: ps.userId });
+			const user = await this.cacheService.findUserById(ps.userId);
 
-			if (user == null) {
-				throw new Error('user not found');
-			}
+			await this.moderationLogService.log(me, 'unNsfwUser', {
+				userId: ps.userId,
+				userUsername: user.username,
+				userHost: user.host,
+			});
 
 			await this.userProfilesRepository.update(user.id, {
 				alwaysMarkNsfw: false,
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 f92be0d8e0..9318943785 100644
--- a/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts
+++ b/packages/backend/src/server/api/endpoints/admin/unsilence-user.ts
@@ -7,6 +7,9 @@ import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import type { UsersRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { CacheService } from '@/core/CacheService.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -28,18 +31,27 @@ export const paramDef = {
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
 		@Inject(DI.usersRepository)
-		private usersRepository: UsersRepository,
+		private readonly usersRepository: UsersRepository,
+		private readonly cacheService: CacheService,
+		private readonly moderationLogService: ModerationLogService,
+		private readonly globalEventService: GlobalEventService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const user = await this.usersRepository.findOneBy({ id: ps.userId });
+			const user = await this.cacheService.findUserById(ps.userId);
 
-			if (user == null) {
-				throw new Error('user not found');
-			}
+			await this.moderationLogService.log(me, 'unSilenceUser', {
+				userId: ps.userId,
+				userUsername: user.username,
+				userHost: user.host,
+			});
 
 			await this.usersRepository.update(user.id, {
 				isSilenced: false,
 			});
+
+			this.globalEventService.publishInternalEvent(user.host == null ? 'localUserUpdated' : 'remoteUserUpdated', {
+				id: user.id,
+			});
 		});
 	}
 }
diff --git a/packages/backend/src/types.ts b/packages/backend/src/types.ts
index b5d982e3a5..977d6157bc 100644
--- a/packages/backend/src/types.ts
+++ b/packages/backend/src/types.ts
@@ -136,6 +136,21 @@ export const moderationLogTypes = [
 	'rejectQuotesUser',
 	'acceptQuotesInstance',
 	'rejectQuotesInstance',
+	'clearUserFiles',
+	'nsfwUser',
+	'unNsfwUser',
+	'silenceUser',
+	'unSilenceUser',
+	'createAccount',
+	'clearRemoteFiles',
+	'clearOwnerlessFiles',
+	'updateCustomEmojis',
+	'importCustomEmojis',
+	'clearInstanceFiles',
+	'severFollowRelations',
+	'createPromo',
+	'addRelay',
+	'removeRelay',
 ] as const;
 
 export type ModerationLogPayloads = {
@@ -439,6 +454,72 @@ export type ModerationLogPayloads = {
 		id: string;
 		host: string;
 	};
+	clearUserFiles: {
+		userId: string;
+		userUsername: string;
+		userHost: string | null;
+		count: number;
+	};
+	nsfwUser: {
+		userId: string;
+		userUsername: string;
+		userHost: string | null;
+	};
+	unNsfwUser: {
+		userId: string;
+		userUsername: string;
+		userHost: string | null;
+	};
+	silenceUser: {
+		userId: string;
+		userUsername: string;
+		userHost: string | null;
+	};
+	unSilenceUser: {
+		userId: string;
+		userUsername: string;
+		userHost: string | null;
+	};
+	createAccount: {
+		userId: string;
+		userUsername: string;
+	};
+	clearRemoteFiles: Record<string, never>;
+	clearOwnerlessFiles: {
+		count: number;
+	};
+	updateCustomEmojis: {
+		ids: string[],
+		category?: string | null,
+		license?: string | null,
+		setAliases?: string[],
+		addAliases?: string[],
+		delAliases?: string[],
+	},
+	importCustomEmojis: {
+		fileId: string,
+		fileName: string,
+	},
+	clearInstanceFiles: {
+		host: string;
+		count: number;
+	},
+	severFollowRelations: {
+		host: string;
+	},
+	createPromo: {
+		noteId: string,
+		noteUserId: string;
+		noteUserUsername: string;
+		noteUserHost: string | null;
+		note: any;
+	},
+	addRelay: {
+		inbox: string;
+	},
+	removeRelay: {
+		inbox: string;
+	},
 };
 
 export type Serialized<T> = {
diff --git a/packages/frontend/src/pages/admin/modlog.ModLog.vue b/packages/frontend/src/pages/admin/modlog.ModLog.vue
index 306a873173..a4731af47b 100644
--- a/packages/frontend/src/pages/admin/modlog.ModLog.vue
+++ b/packages/frontend/src/pages/admin/modlog.ModLog.vue
@@ -18,6 +18,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 					'createAvatarDecoration',
 					'createSystemWebhook',
 					'createAbuseReportNotificationRecipient',
+					'createAccount',
+					'importCustomEmojis',
+					'createPromo',
+					'addRelay',
 				].includes(log.type),
 				[$style.logYellow]: [
 					'markSensitiveDriveFile',
@@ -30,6 +34,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 					'acceptRemoteInstanceReports',
 					'rejectQuotesUser',
 					'acceptQuotesUser',
+					'nsfwUser',
+					'unNsfwUser',
+					'silenceUser',
+					'unSilenceUser',
+					'updateCustomEmojis',
 				].includes(log.type),
 				[$style.logRed]: [
 					'suspend',
@@ -49,6 +58,12 @@ SPDX-License-Identifier: AGPL-3.0-only
 					'deletePage',
 					'deleteFlash',
 					'deleteGalleryPost',
+					'clearUserFiles',
+					'clearRemoteFiles',
+					'clearOwnerlessFiles',
+					'clearInstanceFiles',
+					'severFollowRelations',
+					'removeRelay',
 				].includes(log.type)
 			}"
 		>{{ i18n.ts._moderationLogTypes[log.type] }}</b>
@@ -100,6 +115,17 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<span v-else-if="log.type === 'deletePage'">: @{{ log.info.pageUserUsername }}</span>
 		<span v-else-if="log.type === 'deleteFlash'">: @{{ log.info.flashUserUsername }}</span>
 		<span v-else-if="log.type === 'deleteGalleryPost'">: @{{ log.info.postUserUsername }}</span>
+		<span v-else-if="log.type === 'clearUserFiles'">: @{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</span>
+		<span v-else-if="log.type === 'nsfwUser'">: @{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</span>
+		<span v-else-if="log.type === 'unNsfwUser'">: @{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</span>
+		<span v-else-if="log.type === 'silenceUser'">: @{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</span>
+		<span v-else-if="log.type === 'unSilenceUser'">: @{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</span>
+		<span v-else-if="log.type === 'createAccount'">: @{{ log.info.userUsername }}</span>
+		<span v-else-if="log.type === 'importCustomEmojis'">: {{ log.info.fileName }}</span>
+		<span v-else-if="log.type === 'clearInstanceFiles'">: {{ log.info.host }}</span>
+		<span v-else-if="log.type === 'severFollowRelations'">: {{ log.info.host }}</span>
+		<span v-else-if="log.type === 'addRelay'">: {{ log.info.inbox }}</span>
+		<span v-else-if="log.type === 'removeRelay'">: {{ log.info.inbox }}</span>
 	</template>
 	<template v-if="log.user" #icon>
 		<MkAvatar :user="log.user" :class="$style.avatar"/>
@@ -205,6 +231,35 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<CodeDiff :context="5" :hideHeader="true" :oldString="log.info.before ?? ''" :newString="log.info.after ?? ''" maxHeight="300px"/>
 			</div>
 		</template>
+		<template v-else-if="log.type === 'clearUserFiles'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</MkA></div>
+			<div>{{ i18n.ts.filesRemoved }}: {{ log.info.count }}</div>
+		</template>
+		<template v-else-if="log.type === 'nsfwUser'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</MkA></div>
+		</template>
+		<template v-else-if="log.type === 'unNsfwUser'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</MkA></div>
+		</template>
+		<template v-else-if="log.type === 'silenceUser'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</MkA></div>
+		</template>
+		<template v-else-if="log.type === 'unSilenceUser'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}{{ log.info.userHost ? '@' + log.info.userHost : '' }}</MkA></div>
+		</template>
+		<template v-else-if="log.type === 'createAccount'">
+			<div>{{ i18n.ts.user }}: <MkA :to="`/admin/user/${log.info.userId}`" class="_link">@{{ log.info.userUsername }}</MkA></div>
+		</template>
+		<template v-else-if="log.type === 'clearOwnerlessFiles'">
+			<div>{{ i18n.ts.filesRemoved }}: {{ log.info.count }}</div>
+		</template>
+		<template v-else-if="log.type === 'clearInstanceFiles'">
+			<div>{{ i18n.ts.host }}: <MkA :to="`/instance-info/${log.info.host}`" class="_link">{{ log.info.host }}</MkA></div>
+			<div>{{ i18n.ts.filesRemoved }}: {{ log.info.count }}</div>
+		</template>
+		<template v-else-if="log.type === 'severFollowRelations'">
+			<div>{{ i18n.ts.host }}: <MkA :to="`/instance-info/${log.info.host}`" class="_link">{{ log.info.host }}</MkA></div>
+		</template>
 
 		<details>
 			<summary>raw</summary>
diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index 24a5294c91..e5d4bb6143 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -2728,6 +2728,51 @@ type ModerationLog = {
 } | {
     type: 'deleteGalleryPost';
     info: ModerationLogPayloads['deleteGalleryPost'];
+} | {
+    type: 'clearUserFiles';
+    info: ModerationLogPayloads['clearUserFiles'];
+} | {
+    type: 'nsfwUser';
+    info: ModerationLogPayloads['nsfwUser'];
+} | {
+    type: 'unNsfwUser';
+    info: ModerationLogPayloads['unNsfwUser'];
+} | {
+    type: 'silenceUser';
+    info: ModerationLogPayloads['silenceUser'];
+} | {
+    type: 'unSilenceUser';
+    info: ModerationLogPayloads['unSilenceUser'];
+} | {
+    type: 'createAccount';
+    info: ModerationLogPayloads['createAccount'];
+} | {
+    type: 'clearRemoteFiles';
+    info: ModerationLogPayloads['clearRemoteFiles'];
+} | {
+    type: 'clearOwnerlessFiles';
+    info: ModerationLogPayloads['clearOwnerlessFiles'];
+} | {
+    type: 'updateCustomEmojis';
+    info: ModerationLogPayloads['updateCustomEmojis'];
+} | {
+    type: 'importCustomEmojis';
+    info: ModerationLogPayloads['importCustomEmojis'];
+} | {
+    type: 'clearInstanceFiles';
+    info: ModerationLogPayloads['clearInstanceFiles'];
+} | {
+    type: 'severFollowRelations';
+    info: ModerationLogPayloads['severFollowRelations'];
+} | {
+    type: 'createPromo';
+    info: ModerationLogPayloads['createPromo'];
+} | {
+    type: 'addRelay';
+    info: ModerationLogPayloads['addRelay'];
+} | {
+    type: 'removeRelay';
+    info: ModerationLogPayloads['removeRelay'];
 });
 
 // @public (undocumented)
diff --git a/packages/misskey-js/src/entities.ts b/packages/misskey-js/src/entities.ts
index 7b5d56f01c..3b31a6e531 100644
--- a/packages/misskey-js/src/entities.ts
+++ b/packages/misskey-js/src/entities.ts
@@ -228,6 +228,51 @@ export type ModerationLog = {
 } | {
 	type: 'deleteGalleryPost';
 	info: ModerationLogPayloads['deleteGalleryPost'];
+} | {
+	type: 'clearUserFiles';
+	info: ModerationLogPayloads['clearUserFiles'];
+} | {
+	type: 'nsfwUser';
+	info: ModerationLogPayloads['nsfwUser'];
+} | {
+	type: 'unNsfwUser';
+	info: ModerationLogPayloads['unNsfwUser'];
+} | {
+	type: 'silenceUser';
+	info: ModerationLogPayloads['silenceUser'];
+} | {
+	type: 'unSilenceUser';
+	info: ModerationLogPayloads['unSilenceUser'];
+} | {
+	type: 'createAccount';
+	info: ModerationLogPayloads['createAccount'];
+} | {
+	type: 'clearRemoteFiles';
+	info: ModerationLogPayloads['clearRemoteFiles'];
+} | {
+	type: 'clearOwnerlessFiles';
+	info: ModerationLogPayloads['clearOwnerlessFiles'];
+} | {
+	type: 'updateCustomEmojis';
+	info: ModerationLogPayloads['updateCustomEmojis'];
+} | {
+	type: 'importCustomEmojis';
+	info: ModerationLogPayloads['importCustomEmojis'];
+} | {
+	type: 'clearInstanceFiles';
+	info: ModerationLogPayloads['clearInstanceFiles'];
+} | {
+	type: 'severFollowRelations';
+	info: ModerationLogPayloads['severFollowRelations'];
+} | {
+	type: 'createPromo';
+	info: ModerationLogPayloads['createPromo'];
+} | {
+	type: 'addRelay';
+	info: ModerationLogPayloads['addRelay'];
+} | {
+	type: 'removeRelay';
+	info: ModerationLogPayloads['removeRelay'];
 });
 
 export type ServerStats = {
diff --git a/sharkey-locales/en-US.yml b/sharkey-locales/en-US.yml
index ca454d2272..7e69c9b97d 100644
--- a/sharkey-locales/en-US.yml
+++ b/sharkey-locales/en-US.yml
@@ -169,6 +169,7 @@ pinnedOnly: "Pinned"
 blockingYou: "Blocking you"
 warnExternalUrl: "Show warning when opening external URLs"
 flash: "Flash"
+filesRemoved: "Files removed:"
 _flash:
   contentHidden: "Flash Content Hidden"
   poweredByRuffle: "Powered by Ruffle."
@@ -320,6 +321,22 @@ _moderationLogTypes:
   acceptRemoteInstanceReports: "Accepted reports from remote instance"
   rejectQuotesUser: "Blocked/Stripped quote posts from user"
   allowQuotesUser: "Allowed quote posts from user"
+  clearUserFiles: "Cleared a user's drive files"
+  nsfwUser: "Marked user as NSFW"
+  unNsfwUser: "Un-marked user as NSFW"
+  silenceUser: "Silenced user"
+  unSilenceUser: "Un-silenced user"
+  createAccount: "Created an account"
+  clearRemoteFiles: "Cleared remote drive files"
+  clearOwnerlessFiles: "Cleared owner-less drive files"
+  updateCustomEmojis: "Updated custom emojis"
+  importCustomEmojis: "Imported custom emojis"
+  clearInstanceFiles: "Cleared an instance's drive files"
+  severFollowRelations: "Severed follow relations with an instance"
+  createPromo: "Created a note promo"
+  addRelay: "Added a relay"
+  removeRelay: "Removed a relay"
+
 _mfm:
   uncommonFeature: "This is not a widespread feature, it may not display properly on most other fedi software, including other Misskey forks"
   intro: "MFM is a markup language used on Misskey, Sharkey, Firefish, Akkoma, and more that can be used in many places. Here you can view a list of all available MFM syntax."