chore: 著作権とライセンスについての情報を各ファイルに追加する (#11348)

* chore: Add the SPDX information to each file

Add copyright and licensing information as defined in version 3.0 of
the REUSE Specification.

* tweak format

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

147 files changed, 737 insertions, 3 deletions

diff --git a/packages/backend/src/core/AccountMoveService.ts b/packages/backend/src/core/AccountMoveService.ts
index 111fcfd734..6cbbc0632b 100644
--- a/packages/backend/src/core/AccountMoveService.ts
+++ b/packages/backend/src/core/AccountMoveService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { IsNull, In, MoreThan, Not } from 'typeorm';
 
diff --git a/packages/backend/src/core/AccountUpdateService.ts b/packages/backend/src/core/AccountUpdateService.ts
index b146fc66be..66001fe152 100644
--- a/packages/backend/src/core/AccountUpdateService.ts
+++ b/packages/backend/src/core/AccountUpdateService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { UsersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/AchievementService.ts b/packages/backend/src/core/AchievementService.ts
index 9e223f1492..7c7f989783 100644
--- a/packages/backend/src/core/AchievementService.ts
+++ b/packages/backend/src/core/AchievementService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import type { UserProfilesRepository, UsersRepository } from '@/models/index.js';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/AiService.ts b/packages/backend/src/core/AiService.ts
index c0596446dd..fc7b0226c0 100644
--- a/packages/backend/src/core/AiService.ts
+++ b/packages/backend/src/core/AiService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as fs from 'node:fs';
 import { fileURLToPath } from 'node:url';
 import { dirname } from 'node:path';
diff --git a/packages/backend/src/core/AntennaService.ts b/packages/backend/src/core/AntennaService.ts
index 9310fd8b52..dcd88b0fb7 100644
--- a/packages/backend/src/core/AntennaService.ts
+++ b/packages/backend/src/core/AntennaService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { Antenna } from '@/models/entities/Antenna.js';
diff --git a/packages/backend/src/core/AppLockService.ts b/packages/backend/src/core/AppLockService.ts
index 6ccaec26ba..7a1293a6de 100644
--- a/packages/backend/src/core/AppLockService.ts
+++ b/packages/backend/src/core/AppLockService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { promisify } from 'node:util';
 import { Inject, Injectable } from '@nestjs/common';
 import redisLock from 'redis-lock';
diff --git a/packages/backend/src/core/CacheService.ts b/packages/backend/src/core/CacheService.ts
index cd6b68e721..02bda436cf 100644
--- a/packages/backend/src/core/CacheService.ts
+++ b/packages/backend/src/core/CacheService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { BlockingsRepository, ChannelFollowingsRepository, FollowingsRepository, MutingsRepository, RenoteMutingsRepository, UserProfile, UserProfilesRepository, UsersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/CaptchaService.ts b/packages/backend/src/core/CaptchaService.ts
index 10cfdba254..f64196f4fc 100644
--- a/packages/backend/src/core/CaptchaService.ts
+++ b/packages/backend/src/core/CaptchaService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import { bindThis } from '@/decorators.js';
diff --git a/packages/backend/src/core/CoreModule.ts b/packages/backend/src/core/CoreModule.ts
index c7c98b3bdd..9d6fb87923 100644
--- a/packages/backend/src/core/CoreModule.ts
+++ b/packages/backend/src/core/CoreModule.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Module } from '@nestjs/common';
 import { AccountMoveService } from './AccountMoveService.js';
 import { AccountUpdateService } from './AccountUpdateService.js';
diff --git a/packages/backend/src/core/CreateSystemUserService.ts b/packages/backend/src/core/CreateSystemUserService.ts
index cef664bf0b..5eece8cd46 100644
--- a/packages/backend/src/core/CreateSystemUserService.ts
+++ b/packages/backend/src/core/CreateSystemUserService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { randomUUID } from 'node:crypto';
 import { Inject, Injectable } from '@nestjs/common';
 import bcrypt from 'bcryptjs';
diff --git a/packages/backend/src/core/CustomEmojiService.ts b/packages/backend/src/core/CustomEmojiService.ts
index 661d956bd6..1b33558728 100644
--- a/packages/backend/src/core/CustomEmojiService.ts
+++ b/packages/backend/src/core/CustomEmojiService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import { DataSource, In, IsNull } from 'typeorm';
 import * as Redis from 'ioredis';
diff --git a/packages/backend/src/core/DeleteAccountService.ts b/packages/backend/src/core/DeleteAccountService.ts
index 3a0592441b..9ba260109f 100644
--- a/packages/backend/src/core/DeleteAccountService.ts
+++ b/packages/backend/src/core/DeleteAccountService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import type { UsersRepository } from '@/models/index.js';
 import { QueueService } from '@/core/QueueService.js';
diff --git a/packages/backend/src/core/DownloadService.ts b/packages/backend/src/core/DownloadService.ts
index 1ad7c0137b..5474272b00 100644
--- a/packages/backend/src/core/DownloadService.ts
+++ b/packages/backend/src/core/DownloadService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as fs from 'node:fs';
 import * as stream from 'node:stream/promises';
 import { Inject, Injectable } from '@nestjs/common';
diff --git a/packages/backend/src/core/DriveService.ts b/packages/backend/src/core/DriveService.ts
index 355e5e8c0d..a4f6a96a41 100644
--- a/packages/backend/src/core/DriveService.ts
+++ b/packages/backend/src/core/DriveService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { randomUUID } from 'node:crypto';
 import * as fs from 'node:fs';
 import { Inject, Injectable } from '@nestjs/common';
diff --git a/packages/backend/src/core/EmailService.ts b/packages/backend/src/core/EmailService.ts
index a04e9c1225..162634593e 100644
--- a/packages/backend/src/core/EmailService.ts
+++ b/packages/backend/src/core/EmailService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as nodemailer from 'nodemailer';
 import { Inject, Injectable } from '@nestjs/common';
 import { validate as validateEmail } from 'deep-email-validator';
diff --git a/packages/backend/src/core/FederatedInstanceService.ts b/packages/backend/src/core/FederatedInstanceService.ts
index a762038942..8c3272adea 100644
--- a/packages/backend/src/core/FederatedInstanceService.ts
+++ b/packages/backend/src/core/FederatedInstanceService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { InstancesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/FetchInstanceMetadataService.ts b/packages/backend/src/core/FetchInstanceMetadataService.ts
index 88706f1a48..cf3ebbebfa 100644
--- a/packages/backend/src/core/FetchInstanceMetadataService.ts
+++ b/packages/backend/src/core/FetchInstanceMetadataService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
 import { JSDOM } from 'jsdom';
@@ -70,9 +75,9 @@ export class FetchInstanceMetadataService {
 					return;
 				}
 			}
-	
+
 			this.logger.info(`Fetching metadata of ${instance.host} ...`);
- 
+
 			const [info, dom, manifest] = await Promise.all([
 				this.fetchNodeinfo(instance).catch(() => null),
 				this.fetchDom(instance).catch(() => null),
diff --git a/packages/backend/src/core/FileInfoService.ts b/packages/backend/src/core/FileInfoService.ts
index 1028d3760e..fdea59a8ad 100644
--- a/packages/backend/src/core/FileInfoService.ts
+++ b/packages/backend/src/core/FileInfoService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as fs from 'node:fs';
 import * as crypto from 'node:crypto';
 import { join } from 'node:path';
diff --git a/packages/backend/src/core/GlobalEventService.ts b/packages/backend/src/core/GlobalEventService.ts
index 19d9370083..f216b79ba3 100644
--- a/packages/backend/src/core/GlobalEventService.ts
+++ b/packages/backend/src/core/GlobalEventService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/HashtagService.ts b/packages/backend/src/core/HashtagService.ts
index 851e42e7ba..1aa78f0fda 100644
--- a/packages/backend/src/core/HashtagService.ts
+++ b/packages/backend/src/core/HashtagService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/HttpRequestService.ts b/packages/backend/src/core/HttpRequestService.ts
index 3bb999ff8b..47878ed694 100644
--- a/packages/backend/src/core/HttpRequestService.ts
+++ b/packages/backend/src/core/HttpRequestService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as http from 'node:http';
 import * as https from 'node:https';
 import * as net from 'node:net';
diff --git a/packages/backend/src/core/IdService.ts b/packages/backend/src/core/IdService.ts
index 4d129407cb..186fd36b42 100644
--- a/packages/backend/src/core/IdService.ts
+++ b/packages/backend/src/core/IdService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { ulid } from 'ulid';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/ImageProcessingService.ts b/packages/backend/src/core/ImageProcessingService.ts
index 3246475d12..bbed29b7d0 100644
--- a/packages/backend/src/core/ImageProcessingService.ts
+++ b/packages/backend/src/core/ImageProcessingService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import sharp from 'sharp';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/InstanceActorService.ts b/packages/backend/src/core/InstanceActorService.ts
index 2e047dc5c1..c6b18925bc 100644
--- a/packages/backend/src/core/InstanceActorService.ts
+++ b/packages/backend/src/core/InstanceActorService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { IsNull } from 'typeorm';
 import type { LocalUser } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/InternalStorageService.ts b/packages/backend/src/core/InternalStorageService.ts
index 7c03af7de7..22129bb348 100644
--- a/packages/backend/src/core/InternalStorageService.ts
+++ b/packages/backend/src/core/InternalStorageService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as fs from 'node:fs';
 import * as Path from 'node:path';
 import { fileURLToPath } from 'node:url';
diff --git a/packages/backend/src/core/LoggerService.ts b/packages/backend/src/core/LoggerService.ts
index 14df9aa40c..6d3ed10961 100644
--- a/packages/backend/src/core/LoggerService.ts
+++ b/packages/backend/src/core/LoggerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
diff --git a/packages/backend/src/core/MetaService.ts b/packages/backend/src/core/MetaService.ts
index aae0a9134b..3adc83ab80 100644
--- a/packages/backend/src/core/MetaService.ts
+++ b/packages/backend/src/core/MetaService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import * as Redis from 'ioredis';
diff --git a/packages/backend/src/core/MfmService.ts b/packages/backend/src/core/MfmService.ts
index 38aaa84524..b6f84da475 100644
--- a/packages/backend/src/core/MfmService.ts
+++ b/packages/backend/src/core/MfmService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
 import * as parse5 from 'parse5';
diff --git a/packages/backend/src/core/ModerationLogService.ts b/packages/backend/src/core/ModerationLogService.ts
index 80e8cb9e52..2f09f6f480 100644
--- a/packages/backend/src/core/ModerationLogService.ts
+++ b/packages/backend/src/core/ModerationLogService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { ModerationLogsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 648ff76483..e0ea949c66 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { setImmediate } from 'node:timers/promises';
 import * as mfm from 'mfm-js';
 import { In, DataSource } from 'typeorm';
diff --git a/packages/backend/src/core/NoteDeleteService.ts b/packages/backend/src/core/NoteDeleteService.ts
index f77ea8aab4..7a44916f5e 100644
--- a/packages/backend/src/core/NoteDeleteService.ts
+++ b/packages/backend/src/core/NoteDeleteService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Brackets, In } from 'typeorm';
 import { Injectable, Inject } from '@nestjs/common';
 import type { User, LocalUser, RemoteUser } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/NotePiningService.ts b/packages/backend/src/core/NotePiningService.ts
index 3a9f832ac0..d35b5dc411 100644
--- a/packages/backend/src/core/NotePiningService.ts
+++ b/packages/backend/src/core/NotePiningService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NotesRepository, UserNotePiningsRepository, UsersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/NoteReadService.ts b/packages/backend/src/core/NoteReadService.ts
index 52e9bd369a..a6a66f2653 100644
--- a/packages/backend/src/core/NoteReadService.ts
+++ b/packages/backend/src/core/NoteReadService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { setTimeout } from 'node:timers/promises';
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import { In } from 'typeorm';
diff --git a/packages/backend/src/core/NotificationService.ts b/packages/backend/src/core/NotificationService.ts
index 8e25f82284..0f2d65dff8 100644
--- a/packages/backend/src/core/NotificationService.ts
+++ b/packages/backend/src/core/NotificationService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { setTimeout } from 'node:timers/promises';
 import * as Redis from 'ioredis';
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
diff --git a/packages/backend/src/core/PollService.ts b/packages/backend/src/core/PollService.ts
index be19400052..f317087b41 100644
--- a/packages/backend/src/core/PollService.ts
+++ b/packages/backend/src/core/PollService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NotesRepository, UsersRepository, PollsRepository, PollVotesRepository, User } from '@/models/index.js';
diff --git a/packages/backend/src/core/ProxyAccountService.ts b/packages/backend/src/core/ProxyAccountService.ts
index 780e56ef10..c682754fb9 100644
--- a/packages/backend/src/core/ProxyAccountService.ts
+++ b/packages/backend/src/core/ProxyAccountService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import type { UsersRepository } from '@/models/index.js';
 import type { LocalUser } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/PushNotificationService.ts b/packages/backend/src/core/PushNotificationService.ts
index e1c3d3943c..d5a727b3e4 100644
--- a/packages/backend/src/core/PushNotificationService.ts
+++ b/packages/backend/src/core/PushNotificationService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import push from 'web-push';
 import * as Redis from 'ioredis';
diff --git a/packages/backend/src/core/QueryService.ts b/packages/backend/src/core/QueryService.ts
index 435d5d2389..c6ebc423b5 100644
--- a/packages/backend/src/core/QueryService.ts
+++ b/packages/backend/src/core/QueryService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { Brackets, ObjectLiteral } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/QueueModule.ts b/packages/backend/src/core/QueueModule.ts
index 3384ca4577..4444dc9787 100644
--- a/packages/backend/src/core/QueueModule.ts
+++ b/packages/backend/src/core/QueueModule.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { setTimeout } from 'node:timers/promises';
 import { Inject, Module, OnApplicationShutdown } from '@nestjs/common';
 import * as Bull from 'bullmq';
diff --git a/packages/backend/src/core/QueueService.ts b/packages/backend/src/core/QueueService.ts
index 546b4cee1b..c70b49ca49 100644
--- a/packages/backend/src/core/QueueService.ts
+++ b/packages/backend/src/core/QueueService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { randomUUID } from 'node:crypto';
 import { Inject, Injectable } from '@nestjs/common';
 import type { IActivity } from '@/core/activitypub/type.js';
diff --git a/packages/backend/src/core/ReactionService.ts b/packages/backend/src/core/ReactionService.ts
index 4b01b6af7e..7d97c8745e 100644
--- a/packages/backend/src/core/ReactionService.ts
+++ b/packages/backend/src/core/ReactionService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { EmojisRepository, NoteReactionsRepository, UsersRepository, NotesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/RelayService.ts b/packages/backend/src/core/RelayService.ts
index c0113a21d7..1ac906991b 100644
--- a/packages/backend/src/core/RelayService.ts
+++ b/packages/backend/src/core/RelayService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { IsNull } from 'typeorm';
 import type { LocalUser, User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/RemoteLoggerService.ts b/packages/backend/src/core/RemoteLoggerService.ts
index 3d45605836..5d13988ed7 100644
--- a/packages/backend/src/core/RemoteLoggerService.ts
+++ b/packages/backend/src/core/RemoteLoggerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 import type Logger from '@/logger.js';
 import { LoggerService } from '@/core/LoggerService.js';
diff --git a/packages/backend/src/core/RemoteUserResolveService.ts b/packages/backend/src/core/RemoteUserResolveService.ts
index e19a245e18..31682ea98d 100644
--- a/packages/backend/src/core/RemoteUserResolveService.ts
+++ b/packages/backend/src/core/RemoteUserResolveService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
 import chalk from 'chalk';
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index d065b460c6..70454a84c2 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import { In } from 'typeorm';
diff --git a/packages/backend/src/core/S3Service.ts b/packages/backend/src/core/S3Service.ts
index 01ce12ffdd..0de5426d89 100644
--- a/packages/backend/src/core/S3Service.ts
+++ b/packages/backend/src/core/S3Service.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import * as http from 'node:http';
 import * as https from 'node:https';
diff --git a/packages/backend/src/core/SearchService.ts b/packages/backend/src/core/SearchService.ts
index 392799da75..88b368dd22 100644
--- a/packages/backend/src/core/SearchService.ts
+++ b/packages/backend/src/core/SearchService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { In } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/SignupService.ts b/packages/backend/src/core/SignupService.ts
index 070a9a9e3e..af8c8e434b 100644
--- a/packages/backend/src/core/SignupService.ts
+++ b/packages/backend/src/core/SignupService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { generateKeyPair } from 'node:crypto';
 import { Inject, Injectable } from '@nestjs/common';
 import bcrypt from 'bcryptjs';
diff --git a/packages/backend/src/core/TwoFactorAuthenticationService.ts b/packages/backend/src/core/TwoFactorAuthenticationService.ts
index d4cf186a24..76148841e8 100644
--- a/packages/backend/src/core/TwoFactorAuthenticationService.ts
+++ b/packages/backend/src/core/TwoFactorAuthenticationService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as crypto from 'node:crypto';
 import { Inject, Injectable } from '@nestjs/common';
 import * as jsrsasign from 'jsrsasign';
diff --git a/packages/backend/src/core/UserBlockingService.ts b/packages/backend/src/core/UserBlockingService.ts
index 3ca22f8bbc..28ecf81a13 100644
--- a/packages/backend/src/core/UserBlockingService.ts
+++ b/packages/backend/src/core/UserBlockingService.ts
@@ -1,3 +1,7 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
 
 import { Inject, Injectable, OnModuleInit } from '@nestjs/common';
 import { ModuleRef } from '@nestjs/core';
diff --git a/packages/backend/src/core/UserFollowingService.ts b/packages/backend/src/core/UserFollowingService.ts
index 44269d3b8a..8e356d19bb 100644
--- a/packages/backend/src/core/UserFollowingService.ts
+++ b/packages/backend/src/core/UserFollowingService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnModuleInit, forwardRef } from '@nestjs/common';
 import { ModuleRef } from '@nestjs/core';
 import { IsNull } from 'typeorm';
diff --git a/packages/backend/src/core/UserKeypairService.ts b/packages/backend/src/core/UserKeypairService.ts
index d768f08650..ec5d867bdb 100644
--- a/packages/backend/src/core/UserKeypairService.ts
+++ b/packages/backend/src/core/UserKeypairService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/UserListService.ts b/packages/backend/src/core/UserListService.ts
index 08cc907ebf..cd1e7ea4e6 100644
--- a/packages/backend/src/core/UserListService.ts
+++ b/packages/backend/src/core/UserListService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import type { UserListJoiningsRepository, UsersRepository } from '@/models/index.js';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/UserMutingService.ts b/packages/backend/src/core/UserMutingService.ts
index d201ec6c04..7472d31dce 100644
--- a/packages/backend/src/core/UserMutingService.ts
+++ b/packages/backend/src/core/UserMutingService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { In } from 'typeorm';
 import type { MutingsRepository, Muting } from '@/models/index.js';
diff --git a/packages/backend/src/core/UserSuspendService.ts b/packages/backend/src/core/UserSuspendService.ts
index 28ae32681d..c7fedb6c89 100644
--- a/packages/backend/src/core/UserSuspendService.ts
+++ b/packages/backend/src/core/UserSuspendService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { Not, IsNull } from 'typeorm';
 import type { FollowingsRepository, UsersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/UtilityService.ts b/packages/backend/src/core/UtilityService.ts
index d00708a442..d2d2776bd2 100644
--- a/packages/backend/src/core/UtilityService.ts
+++ b/packages/backend/src/core/UtilityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import { toASCII } from 'punycode';
 import { Inject, Injectable } from '@nestjs/common';
diff --git a/packages/backend/src/core/VideoProcessingService.ts b/packages/backend/src/core/VideoProcessingService.ts
index 06f832ab09..ffb7573358 100644
--- a/packages/backend/src/core/VideoProcessingService.ts
+++ b/packages/backend/src/core/VideoProcessingService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import FFmpeg from 'fluent-ffmpeg';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/WebfingerService.ts b/packages/backend/src/core/WebfingerService.ts
index 6b2428cdf0..e91ba29228 100644
--- a/packages/backend/src/core/WebfingerService.ts
+++ b/packages/backend/src/core/WebfingerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/WebhookService.ts b/packages/backend/src/core/WebhookService.ts
index b6f5263901..8919897c4e 100644
--- a/packages/backend/src/core/WebhookService.ts
+++ b/packages/backend/src/core/WebhookService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
 import type { WebhooksRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/activitypub/ApAudienceService.ts b/packages/backend/src/core/activitypub/ApAudienceService.ts
index f2d84341f4..f90f4a48df 100644
--- a/packages/backend/src/core/activitypub/ApAudienceService.ts
+++ b/packages/backend/src/core/activitypub/ApAudienceService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 import promiseLimit from 'promise-limit';
 import type { RemoteUser, User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/activitypub/ApDbResolverService.ts b/packages/backend/src/core/activitypub/ApDbResolverService.ts
index d5a530c903..418252f6bd 100644
--- a/packages/backend/src/core/activitypub/ApDbResolverService.ts
+++ b/packages/backend/src/core/activitypub/ApDbResolverService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NotesRepository, UserPublickeysRepository, UsersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/activitypub/ApDeliverManagerService.ts b/packages/backend/src/core/activitypub/ApDeliverManagerService.ts
index 09461973d9..b5f0592635 100644
--- a/packages/backend/src/core/activitypub/ApDeliverManagerService.ts
+++ b/packages/backend/src/core/activitypub/ApDeliverManagerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { IsNull, Not } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/activitypub/ApInboxService.ts b/packages/backend/src/core/activitypub/ApInboxService.ts
index 8d5f4883e4..13f4c7a231 100644
--- a/packages/backend/src/core/activitypub/ApInboxService.ts
+++ b/packages/backend/src/core/activitypub/ApInboxService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { In } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/activitypub/ApLoggerService.ts b/packages/backend/src/core/activitypub/ApLoggerService.ts
index eeffab1b6d..cd9597e423 100644
--- a/packages/backend/src/core/activitypub/ApLoggerService.ts
+++ b/packages/backend/src/core/activitypub/ApLoggerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 import type Logger from '@/logger.js';
 import { RemoteLoggerService } from '@/core/RemoteLoggerService.js';
diff --git a/packages/backend/src/core/activitypub/ApMfmService.ts b/packages/backend/src/core/activitypub/ApMfmService.ts
index d7269eca92..2098fb725e 100644
--- a/packages/backend/src/core/activitypub/ApMfmService.ts
+++ b/packages/backend/src/core/activitypub/ApMfmService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import * as mfm from 'mfm-js';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/activitypub/ApRendererService.ts b/packages/backend/src/core/activitypub/ApRendererService.ts
index 797c6267b1..f12321487c 100644
--- a/packages/backend/src/core/activitypub/ApRendererService.ts
+++ b/packages/backend/src/core/activitypub/ApRendererService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { createPublicKey, randomUUID } from 'node:crypto';
 import { Inject, Injectable } from '@nestjs/common';
 import { In } from 'typeorm';
diff --git a/packages/backend/src/core/activitypub/ApRequestService.ts b/packages/backend/src/core/activitypub/ApRequestService.ts
index 44676cac20..b2d98f25e0 100644
--- a/packages/backend/src/core/activitypub/ApRequestService.ts
+++ b/packages/backend/src/core/activitypub/ApRequestService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as crypto from 'node:crypto';
 import { URL } from 'node:url';
 import { Inject, Injectable } from '@nestjs/common';
diff --git a/packages/backend/src/core/activitypub/ApResolverService.ts b/packages/backend/src/core/activitypub/ApResolverService.ts
index aa4720c56e..31bea744e2 100644
--- a/packages/backend/src/core/activitypub/ApResolverService.ts
+++ b/packages/backend/src/core/activitypub/ApResolverService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import type { LocalUser, RemoteUser } from '@/models/entities/User.js';
 import { InstanceActorService } from '@/core/InstanceActorService.js';
diff --git a/packages/backend/src/core/activitypub/LdSignatureService.ts b/packages/backend/src/core/activitypub/LdSignatureService.ts
index af7e243229..39b5ff8abc 100644
--- a/packages/backend/src/core/activitypub/LdSignatureService.ts
+++ b/packages/backend/src/core/activitypub/LdSignatureService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import * as crypto from 'node:crypto';
 import { Injectable } from '@nestjs/common';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
diff --git a/packages/backend/src/core/activitypub/misc/contexts.ts b/packages/backend/src/core/activitypub/misc/contexts.ts
index 2bcd3811b2..71c440e5cc 100644
--- a/packages/backend/src/core/activitypub/misc/contexts.ts
+++ b/packages/backend/src/core/activitypub/misc/contexts.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import type { JsonLd } from 'jsonld/jsonld-spec.js';
 
 /* eslint:disable:quotemark indent */
diff --git a/packages/backend/src/core/activitypub/models/ApImageService.ts b/packages/backend/src/core/activitypub/models/ApImageService.ts
index 1f2984894c..cc4a352f02 100644
--- a/packages/backend/src/core/activitypub/models/ApImageService.ts
+++ b/packages/backend/src/core/activitypub/models/ApImageService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { DriveFilesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/activitypub/models/ApMentionService.ts b/packages/backend/src/core/activitypub/models/ApMentionService.ts
index 62ae3cf93d..a0703dc405 100644
--- a/packages/backend/src/core/activitypub/models/ApMentionService.ts
+++ b/packages/backend/src/core/activitypub/models/ApMentionService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import promiseLimit from 'promise-limit';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/activitypub/models/ApNoteService.ts b/packages/backend/src/core/activitypub/models/ApNoteService.ts
index 46ed976a6b..e915f948c9 100644
--- a/packages/backend/src/core/activitypub/models/ApNoteService.ts
+++ b/packages/backend/src/core/activitypub/models/ApNoteService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { forwardRef, Inject, Injectable } from '@nestjs/common';
 import promiseLimit from 'promise-limit';
 import { In } from 'typeorm';
diff --git a/packages/backend/src/core/activitypub/models/ApPersonService.ts b/packages/backend/src/core/activitypub/models/ApPersonService.ts
index 8fc083719d..d0b2d9d5ba 100644
--- a/packages/backend/src/core/activitypub/models/ApPersonService.ts
+++ b/packages/backend/src/core/activitypub/models/ApPersonService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import promiseLimit from 'promise-limit';
 import { DataSource } from 'typeorm';
@@ -281,7 +286,7 @@ export class ApPersonService implements OnModuleInit {
 		const emojis = await this.apNoteService.extractEmojis(person.tag ?? [], host)
 			.then(_emojis => _emojis.map(emoji => emoji.name))
 			.catch(err => {
-				this.logger.error(`error occured while fetching user emojis`, { stack: err });
+				this.logger.error('error occured while fetching user emojis', { stack: err });
 				return [];
 			});
 		//#endregion
diff --git a/packages/backend/src/core/activitypub/models/ApQuestionService.ts b/packages/backend/src/core/activitypub/models/ApQuestionService.ts
index 229a44f90f..8d8c0a5811 100644
--- a/packages/backend/src/core/activitypub/models/ApQuestionService.ts
+++ b/packages/backend/src/core/activitypub/models/ApQuestionService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NotesRepository, PollsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/activitypub/models/icon.ts b/packages/backend/src/core/activitypub/models/icon.ts
index 50794a937d..9fed78020d 100644
--- a/packages/backend/src/core/activitypub/models/icon.ts
+++ b/packages/backend/src/core/activitypub/models/icon.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 export type IIcon = {
 	type: string;
 	mediaType?: string;
diff --git a/packages/backend/src/core/activitypub/models/identifier.ts b/packages/backend/src/core/activitypub/models/identifier.ts
index f6c3bb8c88..22a7b0a76e 100644
--- a/packages/backend/src/core/activitypub/models/identifier.ts
+++ b/packages/backend/src/core/activitypub/models/identifier.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 export type IIdentifier = {
 	type: string;
 	name: string;
diff --git a/packages/backend/src/core/activitypub/models/tag.ts b/packages/backend/src/core/activitypub/models/tag.ts
index 9aeb843562..772ea11864 100644
--- a/packages/backend/src/core/activitypub/models/tag.ts
+++ b/packages/backend/src/core/activitypub/models/tag.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { toArray } from '@/misc/prelude/array.js';
 import { isHashtag } from '../type.js';
 import type { IObject, IApHashtag } from '../type.js';
diff --git a/packages/backend/src/core/activitypub/type.ts b/packages/backend/src/core/activitypub/type.ts
index 4bb0fa61ec..16ff86e894 100644
--- a/packages/backend/src/core/activitypub/type.ts
+++ b/packages/backend/src/core/activitypub/type.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 export type Obj = { [x: string]: any };
 export type ApObject = IObject | string | (IObject | string)[];
 
diff --git a/packages/backend/src/core/chart/ChartLoggerService.ts b/packages/backend/src/core/chart/ChartLoggerService.ts
index afd3bab5a2..bd90efec64 100644
--- a/packages/backend/src/core/chart/ChartLoggerService.ts
+++ b/packages/backend/src/core/chart/ChartLoggerService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 import type Logger from '@/logger.js';
 import { LoggerService } from '@/core/LoggerService.js';
diff --git a/packages/backend/src/core/chart/ChartManagementService.ts b/packages/backend/src/core/chart/ChartManagementService.ts
index b0e9e534df..6b626d3980 100644
--- a/packages/backend/src/core/chart/ChartManagementService.ts
+++ b/packages/backend/src/core/chart/ChartManagementService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable } from '@nestjs/common';
 
 import { bindThis } from '@/decorators.js';
diff --git a/packages/backend/src/core/chart/charts/active-users.ts b/packages/backend/src/core/chart/charts/active-users.ts
index bc0ba25cbb..4b2ded9e82 100644
--- a/packages/backend/src/core/chart/charts/active-users.ts
+++ b/packages/backend/src/core/chart/charts/active-users.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/ap-request.ts b/packages/backend/src/core/chart/charts/ap-request.ts
index ce377460c8..8bcbd97b48 100644
--- a/packages/backend/src/core/chart/charts/ap-request.ts
+++ b/packages/backend/src/core/chart/charts/ap-request.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/drive.ts b/packages/backend/src/core/chart/charts/drive.ts
index b63db591fb..eff5416670 100644
--- a/packages/backend/src/core/chart/charts/drive.ts
+++ b/packages/backend/src/core/chart/charts/drive.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { DriveFile } from '@/models/entities/DriveFile.js';
diff --git a/packages/backend/src/core/chart/charts/entities/active-users.ts b/packages/backend/src/core/chart/charts/entities/active-users.ts
index e291e37c1b..e68022ef29 100644
--- a/packages/backend/src/core/chart/charts/entities/active-users.ts
+++ b/packages/backend/src/core/chart/charts/entities/active-users.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'activeUsers';
diff --git a/packages/backend/src/core/chart/charts/entities/ap-request.ts b/packages/backend/src/core/chart/charts/entities/ap-request.ts
index 3a9f3dacfd..a824515255 100644
--- a/packages/backend/src/core/chart/charts/entities/ap-request.ts
+++ b/packages/backend/src/core/chart/charts/entities/ap-request.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'apRequest';
diff --git a/packages/backend/src/core/chart/charts/entities/drive.ts b/packages/backend/src/core/chart/charts/entities/drive.ts
index 4bf5bb729e..4a56bd45c5 100644
--- a/packages/backend/src/core/chart/charts/entities/drive.ts
+++ b/packages/backend/src/core/chart/charts/entities/drive.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'drive';
diff --git a/packages/backend/src/core/chart/charts/entities/federation.ts b/packages/backend/src/core/chart/charts/entities/federation.ts
index a8466b0b4c..e067c71a7f 100644
--- a/packages/backend/src/core/chart/charts/entities/federation.ts
+++ b/packages/backend/src/core/chart/charts/entities/federation.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'federation';
diff --git a/packages/backend/src/core/chart/charts/entities/instance.ts b/packages/backend/src/core/chart/charts/entities/instance.ts
index 06962120e2..4ea10d56d1 100644
--- a/packages/backend/src/core/chart/charts/entities/instance.ts
+++ b/packages/backend/src/core/chart/charts/entities/instance.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'instance';
diff --git a/packages/backend/src/core/chart/charts/entities/notes.ts b/packages/backend/src/core/chart/charts/entities/notes.ts
index 9387dbfb2c..26e2529b17 100644
--- a/packages/backend/src/core/chart/charts/entities/notes.ts
+++ b/packages/backend/src/core/chart/charts/entities/notes.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'notes';
diff --git a/packages/backend/src/core/chart/charts/entities/per-user-drive.ts b/packages/backend/src/core/chart/charts/entities/per-user-drive.ts
index 6111640ea0..aec3dd5140 100644
--- a/packages/backend/src/core/chart/charts/entities/per-user-drive.ts
+++ b/packages/backend/src/core/chart/charts/entities/per-user-drive.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'perUserDrive';
diff --git a/packages/backend/src/core/chart/charts/entities/per-user-following.ts b/packages/backend/src/core/chart/charts/entities/per-user-following.ts
index 4118daa474..afb5813058 100644
--- a/packages/backend/src/core/chart/charts/entities/per-user-following.ts
+++ b/packages/backend/src/core/chart/charts/entities/per-user-following.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'perUserFollowing';
diff --git a/packages/backend/src/core/chart/charts/entities/per-user-notes.ts b/packages/backend/src/core/chart/charts/entities/per-user-notes.ts
index c1fa174452..60a0b01c8e 100644
--- a/packages/backend/src/core/chart/charts/entities/per-user-notes.ts
+++ b/packages/backend/src/core/chart/charts/entities/per-user-notes.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'perUserNotes';
diff --git a/packages/backend/src/core/chart/charts/entities/per-user-pv.ts b/packages/backend/src/core/chart/charts/entities/per-user-pv.ts
index 64c8ed1fb1..78d4464d7e 100644
--- a/packages/backend/src/core/chart/charts/entities/per-user-pv.ts
+++ b/packages/backend/src/core/chart/charts/entities/per-user-pv.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'perUserPv';
diff --git a/packages/backend/src/core/chart/charts/entities/per-user-reactions.ts b/packages/backend/src/core/chart/charts/entities/per-user-reactions.ts
index 5e1a6c7b30..761101d479 100644
--- a/packages/backend/src/core/chart/charts/entities/per-user-reactions.ts
+++ b/packages/backend/src/core/chart/charts/entities/per-user-reactions.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'perUserReaction';
diff --git a/packages/backend/src/core/chart/charts/entities/test-grouped.ts b/packages/backend/src/core/chart/charts/entities/test-grouped.ts
index 66b6e8e864..15eb1fd1f8 100644
--- a/packages/backend/src/core/chart/charts/entities/test-grouped.ts
+++ b/packages/backend/src/core/chart/charts/entities/test-grouped.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'testGrouped';
diff --git a/packages/backend/src/core/chart/charts/entities/test-intersection.ts b/packages/backend/src/core/chart/charts/entities/test-intersection.ts
index a3bdcb367f..2ef63977a5 100644
--- a/packages/backend/src/core/chart/charts/entities/test-intersection.ts
+++ b/packages/backend/src/core/chart/charts/entities/test-intersection.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'testIntersection';
diff --git a/packages/backend/src/core/chart/charts/entities/test-unique.ts b/packages/backend/src/core/chart/charts/entities/test-unique.ts
index b2cfb71b05..56233585db 100644
--- a/packages/backend/src/core/chart/charts/entities/test-unique.ts
+++ b/packages/backend/src/core/chart/charts/entities/test-unique.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'testUnique';
diff --git a/packages/backend/src/core/chart/charts/entities/test.ts b/packages/backend/src/core/chart/charts/entities/test.ts
index 7cba21e16a..163db4e79f 100644
--- a/packages/backend/src/core/chart/charts/entities/test.ts
+++ b/packages/backend/src/core/chart/charts/entities/test.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'test';
diff --git a/packages/backend/src/core/chart/charts/entities/users.ts b/packages/backend/src/core/chart/charts/entities/users.ts
index c0b83094ae..c7bffd3fd4 100644
--- a/packages/backend/src/core/chart/charts/entities/users.ts
+++ b/packages/backend/src/core/chart/charts/entities/users.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import Chart from '../../core.js';
 
 export const name = 'users';
diff --git a/packages/backend/src/core/chart/charts/federation.ts b/packages/backend/src/core/chart/charts/federation.ts
index ae4eb6e48d..6d42dab9b4 100644
--- a/packages/backend/src/core/chart/charts/federation.ts
+++ b/packages/backend/src/core/chart/charts/federation.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { FollowingsRepository, InstancesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/chart/charts/instance.ts b/packages/backend/src/core/chart/charts/instance.ts
index 8ca88d80e3..08592855dc 100644
--- a/packages/backend/src/core/chart/charts/instance.ts
+++ b/packages/backend/src/core/chart/charts/instance.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { DriveFilesRepository, FollowingsRepository, UsersRepository, NotesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/chart/charts/notes.ts b/packages/backend/src/core/chart/charts/notes.ts
index 23dc248fec..5b18bcff5a 100644
--- a/packages/backend/src/core/chart/charts/notes.ts
+++ b/packages/backend/src/core/chart/charts/notes.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { Not, IsNull, DataSource } from 'typeorm';
 import type { NotesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/chart/charts/per-user-drive.ts b/packages/backend/src/core/chart/charts/per-user-drive.ts
index ffba04b041..a3ee4c2958 100644
--- a/packages/backend/src/core/chart/charts/per-user-drive.ts
+++ b/packages/backend/src/core/chart/charts/per-user-drive.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { DriveFilesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/chart/charts/per-user-following.ts b/packages/backend/src/core/chart/charts/per-user-following.ts
index aea6d44a9a..ee629772b2 100644
--- a/packages/backend/src/core/chart/charts/per-user-following.ts
+++ b/packages/backend/src/core/chart/charts/per-user-following.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { Not, IsNull, DataSource } from 'typeorm';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/chart/charts/per-user-notes.ts b/packages/backend/src/core/chart/charts/per-user-notes.ts
index d8966f34c1..796fe29eac 100644
--- a/packages/backend/src/core/chart/charts/per-user-notes.ts
+++ b/packages/backend/src/core/chart/charts/per-user-notes.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/chart/charts/per-user-pv.ts b/packages/backend/src/core/chart/charts/per-user-pv.ts
index 53c89d8a9a..efab633fa2 100644
--- a/packages/backend/src/core/chart/charts/per-user-pv.ts
+++ b/packages/backend/src/core/chart/charts/per-user-pv.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/chart/charts/per-user-reactions.ts b/packages/backend/src/core/chart/charts/per-user-reactions.ts
index 7bc6d4b521..b6e89f2177 100644
--- a/packages/backend/src/core/chart/charts/per-user-reactions.ts
+++ b/packages/backend/src/core/chart/charts/per-user-reactions.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/chart/charts/test-grouped.ts b/packages/backend/src/core/chart/charts/test-grouped.ts
index 128967bc65..452f54330e 100644
--- a/packages/backend/src/core/chart/charts/test-grouped.ts
+++ b/packages/backend/src/core/chart/charts/test-grouped.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/test-intersection.ts b/packages/backend/src/core/chart/charts/test-intersection.ts
index 6b4eed9062..0898f28128 100644
--- a/packages/backend/src/core/chart/charts/test-intersection.ts
+++ b/packages/backend/src/core/chart/charts/test-intersection.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/test-unique.ts b/packages/backend/src/core/chart/charts/test-unique.ts
index 5d2b3f8ab1..96cc171945 100644
--- a/packages/backend/src/core/chart/charts/test-unique.ts
+++ b/packages/backend/src/core/chart/charts/test-unique.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/test.ts b/packages/backend/src/core/chart/charts/test.ts
index 238351d8b3..ce2eeb0d5a 100644
--- a/packages/backend/src/core/chart/charts/test.ts
+++ b/packages/backend/src/core/chart/charts/test.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
diff --git a/packages/backend/src/core/chart/charts/users.ts b/packages/backend/src/core/chart/charts/users.ts
index 7bc3602439..347b1d24f7 100644
--- a/packages/backend/src/core/chart/charts/users.ts
+++ b/packages/backend/src/core/chart/charts/users.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Injectable, Inject } from '@nestjs/common';
 import { Not, IsNull, DataSource } from 'typeorm';
 import type { User } from '@/models/entities/User.js';
diff --git a/packages/backend/src/core/chart/core.ts b/packages/backend/src/core/chart/core.ts
index 7a89233eda..8d0a89f2d6 100644
--- a/packages/backend/src/core/chart/core.ts
+++ b/packages/backend/src/core/chart/core.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 /**
  * チャートエンジン
  *
diff --git a/packages/backend/src/core/chart/entities.ts b/packages/backend/src/core/chart/entities.ts
index b44e2e38b7..b6a1299a2f 100644
--- a/packages/backend/src/core/chart/entities.ts
+++ b/packages/backend/src/core/chart/entities.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { entity as FederationChart } from './charts/entities/federation.js';
 import { entity as NotesChart } from './charts/entities/notes.js';
 import { entity as UsersChart } from './charts/entities/users.js';
diff --git a/packages/backend/src/core/entities/AbuseUserReportEntityService.ts b/packages/backend/src/core/entities/AbuseUserReportEntityService.ts
index 94ae1856b9..557174605c 100644
--- a/packages/backend/src/core/entities/AbuseUserReportEntityService.ts
+++ b/packages/backend/src/core/entities/AbuseUserReportEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { AbuseUserReportsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/AntennaEntityService.ts b/packages/backend/src/core/entities/AntennaEntityService.ts
index 328511f5df..662510603b 100644
--- a/packages/backend/src/core/entities/AntennaEntityService.ts
+++ b/packages/backend/src/core/entities/AntennaEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { AntennasRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/AppEntityService.ts b/packages/backend/src/core/entities/AppEntityService.ts
index 0b4c3935c7..1a0c5e2c56 100644
--- a/packages/backend/src/core/entities/AppEntityService.ts
+++ b/packages/backend/src/core/entities/AppEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { AccessTokensRepository, AppsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/AuthSessionEntityService.ts b/packages/backend/src/core/entities/AuthSessionEntityService.ts
index a1874c63ab..a24495b559 100644
--- a/packages/backend/src/core/entities/AuthSessionEntityService.ts
+++ b/packages/backend/src/core/entities/AuthSessionEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { AuthSessionsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/BlockingEntityService.ts b/packages/backend/src/core/entities/BlockingEntityService.ts
index e169c7e90a..1b11450669 100644
--- a/packages/backend/src/core/entities/BlockingEntityService.ts
+++ b/packages/backend/src/core/entities/BlockingEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { BlockingsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/ChannelEntityService.ts b/packages/backend/src/core/entities/ChannelEntityService.ts
index de99ce72c4..f62daa21c9 100644
--- a/packages/backend/src/core/entities/ChannelEntityService.ts
+++ b/packages/backend/src/core/entities/ChannelEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { ChannelFavoritesRepository, ChannelFollowingsRepository, ChannelsRepository, DriveFilesRepository, NoteUnreadsRepository, NotesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/ClipEntityService.ts b/packages/backend/src/core/entities/ClipEntityService.ts
index f558cbc33d..32009a8aad 100644
--- a/packages/backend/src/core/entities/ClipEntityService.ts
+++ b/packages/backend/src/core/entities/ClipEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { ClipFavoritesRepository, ClipsRepository, User } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/DriveFileEntityService.ts b/packages/backend/src/core/entities/DriveFileEntityService.ts
index 80442af09b..315b4fae8a 100644
--- a/packages/backend/src/core/entities/DriveFileEntityService.ts
+++ b/packages/backend/src/core/entities/DriveFileEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { forwardRef, Inject, Injectable } from '@nestjs/common';
 import { DataSource, In } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/entities/DriveFolderEntityService.ts b/packages/backend/src/core/entities/DriveFolderEntityService.ts
index 13929b145f..ab56116965 100644
--- a/packages/backend/src/core/entities/DriveFolderEntityService.ts
+++ b/packages/backend/src/core/entities/DriveFolderEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { DriveFilesRepository, DriveFoldersRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/EmojiEntityService.ts b/packages/backend/src/core/entities/EmojiEntityService.ts
index 4a18cd1b3b..263117bd3d 100644
--- a/packages/backend/src/core/entities/EmojiEntityService.ts
+++ b/packages/backend/src/core/entities/EmojiEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { EmojisRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/FlashEntityService.ts b/packages/backend/src/core/entities/FlashEntityService.ts
index 92345457c9..4c95d83481 100644
--- a/packages/backend/src/core/entities/FlashEntityService.ts
+++ b/packages/backend/src/core/entities/FlashEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { FlashsRepository, FlashLikesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/FlashLikeEntityService.ts b/packages/backend/src/core/entities/FlashLikeEntityService.ts
index 0351ec3014..20a2b44bed 100644
--- a/packages/backend/src/core/entities/FlashLikeEntityService.ts
+++ b/packages/backend/src/core/entities/FlashLikeEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { FlashLikesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/FollowRequestEntityService.ts b/packages/backend/src/core/entities/FollowRequestEntityService.ts
index 6f6f4be412..00ce3ae73e 100644
--- a/packages/backend/src/core/entities/FollowRequestEntityService.ts
+++ b/packages/backend/src/core/entities/FollowRequestEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { FollowRequestsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/FollowingEntityService.ts b/packages/backend/src/core/entities/FollowingEntityService.ts
index 55ba4e67ad..2c04e98c32 100644
--- a/packages/backend/src/core/entities/FollowingEntityService.ts
+++ b/packages/backend/src/core/entities/FollowingEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { FollowingsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/GalleryLikeEntityService.ts b/packages/backend/src/core/entities/GalleryLikeEntityService.ts
index 73c264da94..7332ca4c50 100644
--- a/packages/backend/src/core/entities/GalleryLikeEntityService.ts
+++ b/packages/backend/src/core/entities/GalleryLikeEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { GalleryLikesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/GalleryPostEntityService.ts b/packages/backend/src/core/entities/GalleryPostEntityService.ts
index c44a5df118..0a0a03824b 100644
--- a/packages/backend/src/core/entities/GalleryPostEntityService.ts
+++ b/packages/backend/src/core/entities/GalleryPostEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { GalleryLikesRepository, GalleryPostsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/HashtagEntityService.ts b/packages/backend/src/core/entities/HashtagEntityService.ts
index 2cd79b8f8c..f0ded6fdd4 100644
--- a/packages/backend/src/core/entities/HashtagEntityService.ts
+++ b/packages/backend/src/core/entities/HashtagEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { HashtagsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/InstanceEntityService.ts b/packages/backend/src/core/entities/InstanceEntityService.ts
index 3bf84ed375..c9d08f3f8b 100644
--- a/packages/backend/src/core/entities/InstanceEntityService.ts
+++ b/packages/backend/src/core/entities/InstanceEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { InstancesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/InviteCodeEntityService.ts b/packages/backend/src/core/entities/InviteCodeEntityService.ts
index 2d8e7a4681..112572abe4 100644
--- a/packages/backend/src/core/entities/InviteCodeEntityService.ts
+++ b/packages/backend/src/core/entities/InviteCodeEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { RegistrationTicketsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/ModerationLogEntityService.ts b/packages/backend/src/core/entities/ModerationLogEntityService.ts
index 59815d2639..29f1a03b2b 100644
--- a/packages/backend/src/core/entities/ModerationLogEntityService.ts
+++ b/packages/backend/src/core/entities/ModerationLogEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { ModerationLogsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/MutingEntityService.ts b/packages/backend/src/core/entities/MutingEntityService.ts
index 561d53292e..b452740287 100644
--- a/packages/backend/src/core/entities/MutingEntityService.ts
+++ b/packages/backend/src/core/entities/MutingEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { MutingsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 546e5f56d2..2a2b962ed0 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DataSource, In } from 'typeorm';
 import * as mfm from 'mfm-js';
diff --git a/packages/backend/src/core/entities/NoteFavoriteEntityService.ts b/packages/backend/src/core/entities/NoteFavoriteEntityService.ts
index badb8fb816..1597246dc2 100644
--- a/packages/backend/src/core/entities/NoteFavoriteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteFavoriteEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NoteFavoritesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/NoteReactionEntityService.ts b/packages/backend/src/core/entities/NoteReactionEntityService.ts
index d454ddb70a..cc20334fdb 100644
--- a/packages/backend/src/core/entities/NoteReactionEntityService.ts
+++ b/packages/backend/src/core/entities/NoteReactionEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { NoteReactionsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/NotificationEntityService.ts b/packages/backend/src/core/entities/NotificationEntityService.ts
index 02c6982847..cc6f0a49dd 100644
--- a/packages/backend/src/core/entities/NotificationEntityService.ts
+++ b/packages/backend/src/core/entities/NotificationEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { ModuleRef } from '@nestjs/core';
 import { In } from 'typeorm';
diff --git a/packages/backend/src/core/entities/PageEntityService.ts b/packages/backend/src/core/entities/PageEntityService.ts
index 94b26a5017..8f51daeb9b 100644
--- a/packages/backend/src/core/entities/PageEntityService.ts
+++ b/packages/backend/src/core/entities/PageEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { DriveFilesRepository, PagesRepository, PageLikesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/PageLikeEntityService.ts b/packages/backend/src/core/entities/PageLikeEntityService.ts
index 99465d0ea3..1a14d5cac3 100644
--- a/packages/backend/src/core/entities/PageLikeEntityService.ts
+++ b/packages/backend/src/core/entities/PageLikeEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { PageLikesRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/RenoteMutingEntityService.ts b/packages/backend/src/core/entities/RenoteMutingEntityService.ts
index f8871e0495..ca192379fe 100644
--- a/packages/backend/src/core/entities/RenoteMutingEntityService.ts
+++ b/packages/backend/src/core/entities/RenoteMutingEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { RenoteMutingsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/RoleEntityService.ts b/packages/backend/src/core/entities/RoleEntityService.ts
index 54818782dd..19c672c118 100644
--- a/packages/backend/src/core/entities/RoleEntityService.ts
+++ b/packages/backend/src/core/entities/RoleEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { Brackets } from 'typeorm';
 import { DI } from '@/di-symbols.js';
diff --git a/packages/backend/src/core/entities/SigninEntityService.ts b/packages/backend/src/core/entities/SigninEntityService.ts
index a6c4407ce8..70002b5e47 100644
--- a/packages/backend/src/core/entities/SigninEntityService.ts
+++ b/packages/backend/src/core/entities/SigninEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { SigninsRepository } from '@/models/index.js';
diff --git a/packages/backend/src/core/entities/UserEntityService.ts b/packages/backend/src/core/entities/UserEntityService.ts
index 7d248f8524..f72fc19d45 100644
--- a/packages/backend/src/core/entities/UserEntityService.ts
+++ b/packages/backend/src/core/entities/UserEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { In, Not } from 'typeorm';
 import * as Redis from 'ioredis';
diff --git a/packages/backend/src/core/entities/UserListEntityService.ts b/packages/backend/src/core/entities/UserListEntityService.ts
index 8628819278..fd72018a3a 100644
--- a/packages/backend/src/core/entities/UserListEntityService.ts
+++ b/packages/backend/src/core/entities/UserListEntityService.ts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { UserListJoiningsRepository, UserListsRepository } from '@/models/index.js';