merge: upstream changes (#123)

67 files changed, 1825 insertions, 557 deletions

diff --git a/packages/backend/src/core/AvatarDecorationService.ts b/packages/backend/src/core/AvatarDecorationService.ts
new file mode 100644
index 0000000000..e97946f9dc
--- /dev/null
+++ b/packages/backend/src/core/AvatarDecorationService.ts
@@ -0,0 +1,129 @@
+/*
+ * 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 { AvatarDecorationsRepository, MiAvatarDecoration, MiUser } from '@/models/_.js';
+import { IdService } from '@/core/IdService.js';
+import { GlobalEventService } from '@/core/GlobalEventService.js';
+import { DI } from '@/di-symbols.js';
+import { bindThis } from '@/decorators.js';
+import { MemorySingleCache } from '@/misc/cache.js';
+import type { GlobalEvents } from '@/core/GlobalEventService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
+
+@Injectable()
+export class AvatarDecorationService implements OnApplicationShutdown {
+	public cache: MemorySingleCache<MiAvatarDecoration[]>;
+
+	constructor(
+		@Inject(DI.redisForSub)
+		private redisForSub: Redis.Redis,
+
+		@Inject(DI.avatarDecorationsRepository)
+		private avatarDecorationsRepository: AvatarDecorationsRepository,
+
+		private idService: IdService,
+		private moderationLogService: ModerationLogService,
+		private globalEventService: GlobalEventService,
+	) {
+		this.cache = new MemorySingleCache<MiAvatarDecoration[]>(1000 * 60 * 30);
+
+		this.redisForSub.on('message', this.onMessage);
+	}
+
+	@bindThis
+	private async onMessage(_: string, data: string): Promise<void> {
+		const obj = JSON.parse(data);
+
+		if (obj.channel === 'internal') {
+			const { type, body } = obj.message as GlobalEvents['internal']['payload'];
+			switch (type) {
+				case 'avatarDecorationCreated':
+				case 'avatarDecorationUpdated':
+				case 'avatarDecorationDeleted': {
+					this.cache.delete();
+					break;
+				}
+				default:
+					break;
+			}
+		}
+	}
+
+	@bindThis
+	public async create(options: Partial<MiAvatarDecoration>, moderator?: MiUser): Promise<MiAvatarDecoration> {
+		const created = await this.avatarDecorationsRepository.insert({
+			id: this.idService.gen(),
+			...options,
+		}).then(x => this.avatarDecorationsRepository.findOneByOrFail(x.identifiers[0]));
+
+		this.globalEventService.publishInternalEvent('avatarDecorationCreated', created);
+
+		if (moderator) {
+			this.moderationLogService.log(moderator, 'createAvatarDecoration', {
+				avatarDecorationId: created.id,
+				avatarDecoration: created,
+			});
+		}
+
+		return created;
+	}
+
+	@bindThis
+	public async update(id: MiAvatarDecoration['id'], params: Partial<MiAvatarDecoration>, moderator?: MiUser): Promise<void> {
+		const avatarDecoration = await this.avatarDecorationsRepository.findOneByOrFail({ id });
+
+		const date = new Date();
+		await this.avatarDecorationsRepository.update(avatarDecoration.id, {
+			updatedAt: date,
+			...params,
+		});
+
+		const updated = await this.avatarDecorationsRepository.findOneByOrFail({ id: avatarDecoration.id });
+		this.globalEventService.publishInternalEvent('avatarDecorationUpdated', updated);
+
+		if (moderator) {
+			this.moderationLogService.log(moderator, 'updateAvatarDecoration', {
+				avatarDecorationId: avatarDecoration.id,
+				before: avatarDecoration,
+				after: updated,
+			});
+		}
+	}
+
+	@bindThis
+	public async delete(id: MiAvatarDecoration['id'], moderator?: MiUser): Promise<void> {
+		const avatarDecoration = await this.avatarDecorationsRepository.findOneByOrFail({ id });
+
+		await this.avatarDecorationsRepository.delete({ id: avatarDecoration.id });
+		this.globalEventService.publishInternalEvent('avatarDecorationDeleted', avatarDecoration);
+
+		if (moderator) {
+			this.moderationLogService.log(moderator, 'deleteAvatarDecoration', {
+				avatarDecorationId: avatarDecoration.id,
+				avatarDecoration: avatarDecoration,
+			});
+		}
+	}
+
+	@bindThis
+	public async getAll(noCache = false): Promise<MiAvatarDecoration[]> {
+		if (noCache) {
+			this.cache.delete();
+		}
+		return this.cache.fetch(() => this.avatarDecorationsRepository.find());
+	}
+
+	@bindThis
+	public dispose(): void {
+		this.redisForSub.off('message', this.onMessage);
+	}
+
+	@bindThis
+	public onApplicationShutdown(signal?: string | undefined): void {
+		this.dispose();
+	}
+}
diff --git a/packages/backend/src/core/CacheService.ts b/packages/backend/src/core/CacheService.ts
index 22c510cc37..e1413342b1 100644
--- a/packages/backend/src/core/CacheService.ts
+++ b/packages/backend/src/core/CacheService.ts
@@ -5,7 +5,7 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import * as Redis from 'ioredis';
-import type { BlockingsRepository, ChannelFollowingsRepository, FollowingsRepository, MutingsRepository, RenoteMutingsRepository, MiUserProfile, UserProfilesRepository, UsersRepository, MiFollowing } from '@/models/_.js';
+import type { BlockingsRepository, FollowingsRepository, MutingsRepository, RenoteMutingsRepository, MiUserProfile, UserProfilesRepository, UsersRepository, MiFollowing } from '@/models/_.js';
 import { MemoryKVCache, RedisKVCache } from '@/misc/cache.js';
 import type { MiLocalUser, MiUser } from '@/models/User.js';
 import { DI } from '@/di-symbols.js';
@@ -26,7 +26,6 @@ export class CacheService implements OnApplicationShutdown {
 	public userBlockedCache: RedisKVCache<Set<string>>; // NOTE: 「被」Blockキャッシュ
 	public renoteMutingsCache: RedisKVCache<Set<string>>;
 	public userFollowingsCache: RedisKVCache<Record<string, Pick<MiFollowing, 'withReplies'> | undefined>>;
-	public userFollowingChannelsCache: RedisKVCache<Set<string>>;
 
 	constructor(
 		@Inject(DI.redis)
@@ -53,9 +52,6 @@ export class CacheService implements OnApplicationShutdown {
 		@Inject(DI.followingsRepository)
 		private followingsRepository: FollowingsRepository,
 
-		@Inject(DI.channelFollowingsRepository)
-		private channelFollowingsRepository: ChannelFollowingsRepository,
-
 		private userEntityService: UserEntityService,
 	) {
 		//this.onMessage = this.onMessage.bind(this);
@@ -150,13 +146,7 @@ export class CacheService implements OnApplicationShutdown {
 			fromRedisConverter: (value) => JSON.parse(value),
 		});
 
-		this.userFollowingChannelsCache = new RedisKVCache<Set<string>>(this.redisClient, 'userFollowingChannels', {
-			lifetime: 1000 * 60 * 30, // 30m
-			memoryCacheLifetime: 1000 * 60, // 1m
-			fetcher: (key) => this.channelFollowingsRepository.find({ where: { followerId: key }, select: ['followeeId'] }).then(xs => new Set(xs.map(x => x.followeeId))),
-			toRedisConverter: (value) => JSON.stringify(Array.from(value)),
-			fromRedisConverter: (value) => new Set(JSON.parse(value)),
-		});
+		// NOTE: チャンネルのフォロー状況キャッシュはChannelFollowingServiceで行っている
 
 		this.redisForSub.on('message', this.onMessage);
 	}
@@ -221,7 +211,6 @@ export class CacheService implements OnApplicationShutdown {
 		this.userBlockedCache.dispose();
 		this.renoteMutingsCache.dispose();
 		this.userFollowingsCache.dispose();
-		this.userFollowingChannelsCache.dispose();
 	}
 
 	@bindThis
diff --git a/packages/backend/src/core/ChannelFollowingService.ts b/packages/backend/src/core/ChannelFollowingService.ts
new file mode 100644
index 0000000000..75843b9773
--- /dev/null
+++ b/packages/backend/src/core/ChannelFollowingService.ts
@@ -0,0 +1,104 @@
+import { Inject, Injectable, OnModuleInit } from '@nestjs/common';
+import Redis from 'ioredis';
+import { DI } from '@/di-symbols.js';
+import type { ChannelFollowingsRepository } from '@/models/_.js';
+import { MiChannel } from '@/models/_.js';
+import { IdService } from '@/core/IdService.js';
+import { GlobalEvents, GlobalEventService } from '@/core/GlobalEventService.js';
+import { bindThis } from '@/decorators.js';
+import type { MiLocalUser } from '@/models/User.js';
+import { RedisKVCache } from '@/misc/cache.js';
+
+@Injectable()
+export class ChannelFollowingService implements OnModuleInit {
+	public userFollowingChannelsCache: RedisKVCache<Set<string>>;
+
+	constructor(
+		@Inject(DI.redis)
+		private redisClient: Redis.Redis,
+		@Inject(DI.redisForSub)
+		private redisForSub: Redis.Redis,
+		@Inject(DI.channelFollowingsRepository)
+		private channelFollowingsRepository: ChannelFollowingsRepository,
+		private idService: IdService,
+		private globalEventService: GlobalEventService,
+	) {
+		this.userFollowingChannelsCache = new RedisKVCache<Set<string>>(this.redisClient, 'userFollowingChannels', {
+			lifetime: 1000 * 60 * 30, // 30m
+			memoryCacheLifetime: 1000 * 60, // 1m
+			fetcher: (key) => this.channelFollowingsRepository.find({
+				where: { followerId: key },
+				select: ['followeeId'],
+			}).then(xs => new Set(xs.map(x => x.followeeId))),
+			toRedisConverter: (value) => JSON.stringify(Array.from(value)),
+			fromRedisConverter: (value) => new Set(JSON.parse(value)),
+		});
+
+		this.redisForSub.on('message', this.onMessage);
+	}
+
+	onModuleInit() {
+	}
+
+	@bindThis
+	public async follow(
+		requestUser: MiLocalUser,
+		targetChannel: MiChannel,
+	): Promise<void> {
+		await this.channelFollowingsRepository.insert({
+			id: this.idService.gen(),
+			followerId: requestUser.id,
+			followeeId: targetChannel.id,
+		});
+
+		this.globalEventService.publishInternalEvent('followChannel', {
+			userId: requestUser.id,
+			channelId: targetChannel.id,
+		});
+	}
+
+	@bindThis
+	public async unfollow(
+		requestUser: MiLocalUser,
+		targetChannel: MiChannel,
+	): Promise<void> {
+		await this.channelFollowingsRepository.delete({
+			followerId: requestUser.id,
+			followeeId: targetChannel.id,
+		});
+
+		this.globalEventService.publishInternalEvent('unfollowChannel', {
+			userId: requestUser.id,
+			channelId: targetChannel.id,
+		});
+	}
+
+	@bindThis
+	private async onMessage(_: string, data: string): Promise<void> {
+		const obj = JSON.parse(data);
+
+		if (obj.channel === 'internal') {
+			const { type, body } = obj.message as GlobalEvents['internal']['payload'];
+			switch (type) {
+				case 'followChannel': {
+					this.userFollowingChannelsCache.refresh(body.userId);
+					break;
+				}
+				case 'unfollowChannel': {
+					this.userFollowingChannelsCache.delete(body.userId);
+					break;
+				}
+			}
+		}
+	}
+
+	@bindThis
+	public dispose(): void {
+		this.userFollowingChannelsCache.dispose();
+	}
+
+	@bindThis
+	public onApplicationShutdown(signal?: string | undefined): void {
+		this.dispose();
+	}
+}
diff --git a/packages/backend/src/core/CoreModule.ts b/packages/backend/src/core/CoreModule.ts
index ad4f58e1d7..47091af216 100644
--- a/packages/backend/src/core/CoreModule.ts
+++ b/packages/backend/src/core/CoreModule.ts
@@ -11,6 +11,7 @@ import { AnnouncementService } from './AnnouncementService.js';
 import { AntennaService } from './AntennaService.js';
 import { AppLockService } from './AppLockService.js';
 import { AchievementService } from './AchievementService.js';
+import { AvatarDecorationService } from './AvatarDecorationService.js';
 import { CaptchaService } from './CaptchaService.js';
 import { CreateSystemUserService } from './CreateSystemUserService.js';
 import { CustomEmojiService } from './CustomEmojiService.js';
@@ -63,6 +64,7 @@ import { SearchService } from './SearchService.js';
 import { ClipService } from './ClipService.js';
 import { FeaturedService } from './FeaturedService.js';
 import { FunoutTimelineService } from './FunoutTimelineService.js';
+import { ChannelFollowingService } from './ChannelFollowingService.js';
 import { ChartLoggerService } from './chart/ChartLoggerService.js';
 import FederationChart from './chart/charts/federation.js';
 import NotesChart from './chart/charts/notes.js';
@@ -141,6 +143,7 @@ const $AnnouncementService: Provider = { provide: 'AnnouncementService', useExis
 const $AntennaService: Provider = { provide: 'AntennaService', useExisting: AntennaService };
 const $AppLockService: Provider = { provide: 'AppLockService', useExisting: AppLockService };
 const $AchievementService: Provider = { provide: 'AchievementService', useExisting: AchievementService };
+const $AvatarDecorationService: Provider = { provide: 'AvatarDecorationService', useExisting: AvatarDecorationService };
 const $CaptchaService: Provider = { provide: 'CaptchaService', useExisting: CaptchaService };
 const $CreateSystemUserService: Provider = { provide: 'CreateSystemUserService', useExisting: CreateSystemUserService };
 const $CustomEmojiService: Provider = { provide: 'CustomEmojiService', useExisting: CustomEmojiService };
@@ -193,6 +196,7 @@ const $SearchService: Provider = { provide: 'SearchService', useExisting: Search
 const $ClipService: Provider = { provide: 'ClipService', useExisting: ClipService };
 const $FeaturedService: Provider = { provide: 'FeaturedService', useExisting: FeaturedService };
 const $FunoutTimelineService: Provider = { provide: 'FunoutTimelineService', useExisting: FunoutTimelineService };
+const $ChannelFollowingService: Provider = { provide: 'ChannelFollowingService', useExisting: ChannelFollowingService };
 
 const $ChartLoggerService: Provider = { provide: 'ChartLoggerService', useExisting: ChartLoggerService };
 const $FederationChart: Provider = { provide: 'FederationChart', useExisting: FederationChart };
@@ -275,6 +279,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		AntennaService,
 		AppLockService,
 		AchievementService,
+		AvatarDecorationService,
 		CaptchaService,
 		CreateSystemUserService,
 		CustomEmojiService,
@@ -327,6 +332,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		ClipService,
 		FeaturedService,
 		FunoutTimelineService,
+		ChannelFollowingService,
 		ChartLoggerService,
 		FederationChart,
 		NotesChart,
@@ -402,6 +408,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$AntennaService,
 		$AppLockService,
 		$AchievementService,
+		$AvatarDecorationService,
 		$CaptchaService,
 		$CreateSystemUserService,
 		$CustomEmojiService,
@@ -454,6 +461,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$ClipService,
 		$FeaturedService,
 		$FunoutTimelineService,
+		$ChannelFollowingService,
 		$ChartLoggerService,
 		$FederationChart,
 		$NotesChart,
@@ -530,6 +538,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		AntennaService,
 		AppLockService,
 		AchievementService,
+		AvatarDecorationService,
 		CaptchaService,
 		CreateSystemUserService,
 		CustomEmojiService,
@@ -582,6 +591,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		ClipService,
 		FeaturedService,
 		FunoutTimelineService,
+		ChannelFollowingService,
 		FederationChart,
 		NotesChart,
 		UsersChart,
@@ -656,6 +666,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$AntennaService,
 		$AppLockService,
 		$AchievementService,
+		$AvatarDecorationService,
 		$CaptchaService,
 		$CreateSystemUserService,
 		$CustomEmojiService,
@@ -708,6 +719,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$ClipService,
 		$FeaturedService,
 		$FunoutTimelineService,
+		$ChannelFollowingService,
 		$FederationChart,
 		$NotesChart,
 		$UsersChart,
diff --git a/packages/backend/src/core/FeaturedService.ts b/packages/backend/src/core/FeaturedService.ts
index cccbbd95cb..9617f83880 100644
--- a/packages/backend/src/core/FeaturedService.ts
+++ b/packages/backend/src/core/FeaturedService.ts
@@ -52,7 +52,7 @@ export class FeaturedService {
 			`${name}:${currentWindow}`, 0, threshold, 'REV', 'WITHSCORES');
 		redisPipeline.zrange(
 			`${name}:${previousWindow}`, 0, threshold, 'REV', 'WITHSCORES');
-		const [currentRankingResult, previousRankingResult] = await redisPipeline.exec().then(result => result ? result.map(r => r[1] as string[]) : [[], []]);
+		const [currentRankingResult, previousRankingResult] = await redisPipeline.exec().then(result => result ? result.map(r => (r[1] ?? []) as string[]) : [[], []]);
 
 		const ranking = new Map<string, number>();
 		for (let i = 0; i < currentRankingResult.length; i += 2) {
diff --git a/packages/backend/src/core/GlobalEventService.ts b/packages/backend/src/core/GlobalEventService.ts
index b74fbbe584..d175f21f2f 100644
--- a/packages/backend/src/core/GlobalEventService.ts
+++ b/packages/backend/src/core/GlobalEventService.ts
@@ -18,7 +18,7 @@ import type { MiSignin } from '@/models/Signin.js';
 import type { MiPage } from '@/models/Page.js';
 import type { MiWebhook } from '@/models/Webhook.js';
 import type { MiMeta } from '@/models/Meta.js';
-import { MiRole, MiRoleAssignment } from '@/models/_.js';
+import { MiAvatarDecoration, MiRole, MiRoleAssignment } from '@/models/_.js';
 import type { Packed } from '@/misc/json-schema.js';
 import { DI } from '@/di-symbols.js';
 import type { Config } from '@/config.js';
@@ -77,7 +77,13 @@ export interface MainEventTypes {
 	unreadAntenna: MiAntenna;
 	readAllAnnouncements: undefined;
 	myTokenRegenerated: undefined;
-	signin: MiSignin;
+	signin: {
+		id: MiSignin['id'];
+		createdAt: string;
+		ip: string;
+		headers: Record<string, any>;
+		success: boolean;
+	};
 	registryUpdated: {
 		scope?: string[];
 		key: string;
@@ -188,6 +194,9 @@ export interface InternalEventTypes {
 	antennaCreated: MiAntenna;
 	antennaDeleted: MiAntenna;
 	antennaUpdated: MiAntenna;
+	avatarDecorationCreated: MiAvatarDecoration;
+	avatarDecorationDeleted: MiAvatarDecoration;
+	avatarDecorationUpdated: MiAvatarDecoration;
 	metaUpdated: MiMeta;
 	followChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
 	unfollowChannel: { userId: MiUser['id']; channelId: MiChannel['id']; };
diff --git a/packages/backend/src/core/NoteCreateService.ts b/packages/backend/src/core/NoteCreateService.ts
index 029891c610..34c8d4f8b1 100644
--- a/packages/backend/src/core/NoteCreateService.ts
+++ b/packages/backend/src/core/NoteCreateService.ts
@@ -55,8 +55,8 @@ import { MetaService } from '@/core/MetaService.js';
 import { SearchService } from '@/core/SearchService.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 import { FunoutTimelineService } from '@/core/FunoutTimelineService.js';
-import { nyaize } from '@/misc/nyaize.js';
 import { UtilityService } from '@/core/UtilityService.js';
+import { UserBlockingService } from '@/core/UserBlockingService.js';
 
 type NotificationType = 'reply' | 'renote' | 'quote' | 'mention';
 
@@ -217,6 +217,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 		private activeUsersChart: ActiveUsersChart,
 		private instanceChart: InstanceChart,
 		private utilityService: UtilityService,
+		private userBlockingService: UserBlockingService,
 	) { }
 
 	@bindThis
@@ -228,8 +229,6 @@ export class NoteCreateService implements OnApplicationShutdown {
 		isCat: MiUser['isCat'];
 		speakAsCat: MiUser['speakAsCat'];
 	}, data: Option, silent = false): Promise<MiNote> {
-		let patsedText: mfm.MfmNode[] | null = null;
-
 		// チャンネル外にリプライしたら対象のスコープに合わせる
 		// (クライアントサイドでやっても良い処理だと思うけどとりあえずサーバーサイドで)
 		if (data.reply && data.channel && data.reply.channelId !== data.channel.id) {
@@ -296,6 +295,18 @@ export class NoteCreateService implements OnApplicationShutdown {
 			}
 		}
 
+		// Check blocking
+		if (data.renote && data.text == null && data.poll == null && (data.files == null || data.files.length === 0)) {
+			if (data.renote.userHost === null) {
+				if (data.renote.userId !== user.id) {
+					const blocked = await this.userBlockingService.checkBlocked(data.renote.userId, user.id);
+					if (blocked) {
+						throw new Error('blocked');
+					}
+				}
+			}
+		}
+
 		// 返信対象がpublicではないならhomeにする
 		if (data.reply && data.reply.visibility !== 'public' && data.visibility === 'public') {
 			data.visibility = 'home';
@@ -316,25 +327,6 @@ export class NoteCreateService implements OnApplicationShutdown {
 				data.text = data.text.slice(0, DB_MAX_NOTE_TEXT_LENGTH);
 			}
 			data.text = data.text.trim();
-
-			if (user.isCat && user.speakAsCat) {
-				patsedText = mfm.parse(data.text);
-				function nyaizeNode(node: mfm.MfmNode) {
-					if (node.type === 'quote') return;
-					if (node.type === 'text') {
-						node.props.text = nyaize(node.props.text);
-					}
-					if (node.children) {
-						for (const child of node.children) {
-							nyaizeNode(child);
-						}
-					}
-				}
-				for (const node of patsedText) {
-					nyaizeNode(node);
-				}
-				data.text = mfm.toString(patsedText);
-			}
 		} else {
 			data.text = null;
 		}
@@ -345,7 +337,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 
 		// Parse MFM if needed
 		if (!tags || !emojis || !mentionedUsers) {
-			const tokens = patsedText ?? (data.text ? mfm.parse(data.text)! : []);
+			const tokens = (data.text ? mfm.parse(data.text)! : []);
 			const cwTokens = data.cw ? mfm.parse(data.cw)! : [];
 			const choiceTokens = data.poll && data.poll.choices
 				? concat(data.poll.choices.map(choice => mfm.parse(choice)!))
@@ -598,7 +590,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 			}
 
 			// Pack the note
-			const noteObj = await this.noteEntityService.pack(note, null, { skipHide: true });
+			const noteObj = await this.noteEntityService.pack(note, null, { skipHide: true, withReactionAndUserPairCache: true });
 
 			this.globalEventService.publishNotesStream(noteObj);
 
@@ -861,6 +853,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 	@bindThis
 	private async pushToTl(note: MiNote, user: { id: MiUser['id']; host: MiUser['host']; }) {
 		const meta = await this.metaService.fetch();
+		if (!meta.enableFanoutTimeline) return;
 
 		const r = this.redisForTimelines.pipeline();
 
@@ -904,7 +897,7 @@ export class NoteCreateService implements OnApplicationShutdown {
 
 			if (note.visibility === 'followers') {
 				// TODO: 重そうだから何とかしたい Set 使う？
-				userListMemberships = userListMemberships.filter(x => followings.some(f => f.followerId === x.userListUserId));
+				userListMemberships = userListMemberships.filter(x => x.userListUserId === user.id || followings.some(f => f.followerId === x.userListUserId));
 			}
 
 			// TODO: あまりにも数が多いと redisPipeline.exec に失敗する(理由は不明)ため、3万件程度を目安に分割して実行するようにする
diff --git a/packages/backend/src/core/NoteDeleteService.ts b/packages/backend/src/core/NoteDeleteService.ts
index 1146d4e2f7..99d9d9db7e 100644
--- a/packages/backend/src/core/NoteDeleteService.ts
+++ b/packages/backend/src/core/NoteDeleteService.ts
@@ -24,6 +24,7 @@ import { bindThis } from '@/decorators.js';
 import { MetaService } from '@/core/MetaService.js';
 import { SearchService } from '@/core/SearchService.js';
 import { ModerationLogService } from '@/core/ModerationLogService.js';
+import { isPureRenote } from '@/misc/is-pure-renote.js';
 
 @Injectable()
 export class NoteDeleteService {
@@ -84,8 +85,8 @@ export class NoteDeleteService {
 			if (this.userEntityService.isLocalUser(user) && !note.localOnly) {
 				let renote: MiNote | null = null;
 
-				// if deletd note is renote
-				if (note.renoteId && note.text == null && !note.hasPoll && (note.fileIds == null || note.fileIds.length === 0)) {
+				// if deleted note is renote
+				if (isPureRenote(note)) {
 					renote = await this.notesRepository.findOneBy({
 						id: note.renoteId,
 					});
diff --git a/packages/backend/src/core/QueryService.ts b/packages/backend/src/core/QueryService.ts
index ae8f8a3f19..f006ed4944 100644
--- a/packages/backend/src/core/QueryService.ts
+++ b/packages/backend/src/core/QueryService.ts
@@ -40,7 +40,7 @@ export class QueryService {
 	) {
 	}
 
-	public makePaginationQuery<T extends ObjectLiteral>(q: SelectQueryBuilder<T>, sinceId?: string, untilId?: string, sinceDate?: number, untilDate?: number): SelectQueryBuilder<T> {
+	public makePaginationQuery<T extends ObjectLiteral>(q: SelectQueryBuilder<T>, sinceId?: string | null, untilId?: string | null, sinceDate?: number | null, untilDate?: number | null): SelectQueryBuilder<T> {
 		if (sinceId && untilId) {
 			q.andWhere(`${q.alias}.id > :sinceId`, { sinceId: sinceId });
 			q.andWhere(`${q.alias}.id < :untilId`, { untilId: untilId });
diff --git a/packages/backend/src/core/ReactionService.ts b/packages/backend/src/core/ReactionService.ts
index 1458e2b173..4233b8d4c3 100644
--- a/packages/backend/src/core/ReactionService.ts
+++ b/packages/backend/src/core/ReactionService.ts
@@ -30,6 +30,7 @@ import { RoleService } from '@/core/RoleService.js';
 import { FeaturedService } from '@/core/FeaturedService.js';
 
 const FALLBACK = '❤';
+const PER_NOTE_REACTION_USER_PAIR_CACHE_MAX = 16;
 
 const legacies: Record<string, string> = {
 	'like': '👍',
@@ -187,6 +188,9 @@ export class ReactionService {
 		await this.notesRepository.createQueryBuilder().update()
 			.set({
 				reactions: () => sql,
+				...(note.reactionAndUserPairCache.length < PER_NOTE_REACTION_USER_PAIR_CACHE_MAX ? {
+					reactionAndUserPairCache: () => `array_append("reactionAndUserPairCache", '${user.id}/${reaction}')`,
+				} : {}),
 			})
 			.where('id = :id', { id: note.id })
 			.execute();
@@ -293,6 +297,7 @@ export class ReactionService {
 		await this.notesRepository.createQueryBuilder().update()
 			.set({
 				reactions: () => sql,
+				reactionAndUserPairCache: () => `array_remove("reactionAndUserPairCache", '${user.id}/${exist.reaction}')`,
 			})
 			.where('id = :id', { id: note.id })
 			.execute();
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index 2c2ff7af1d..d6a414694a 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -32,6 +32,7 @@ export type RolePolicies = {
 	inviteLimitCycle: number;
 	inviteExpirationTime: number;
 	canManageCustomEmojis: boolean;
+	canManageAvatarDecorations: boolean;
 	canSearchNotes: boolean;
 	canUseTranslator: boolean;
 	canHideAds: boolean;
@@ -57,6 +58,7 @@ export const DEFAULT_POLICIES: RolePolicies = {
 	inviteLimitCycle: 60 * 24 * 7,
 	inviteExpirationTime: 0,
 	canManageCustomEmojis: false,
+	canManageAvatarDecorations: false,
 	canSearchNotes: false,
 	canUseTranslator: true,
 	canHideAds: false,
@@ -228,6 +230,12 @@ export class RoleService implements OnApplicationShutdown {
 	}
 
 	@bindThis
+	public async getRoles() {
+		const roles = await this.rolesCache.fetch(() => this.rolesRepository.findBy({}));
+		return roles;
+	}
+
+	@bindThis
 	public async getUserAssigns(userId: MiUser['id']) {
 		const now = Date.now();
 		let assigns = await this.roleAssignmentByUserIdCache.fetch(userId, () => this.roleAssignmentsRepository.findBy({ userId }));
@@ -300,6 +308,7 @@ export class RoleService implements OnApplicationShutdown {
 			inviteLimitCycle: calc('inviteLimitCycle', vs => Math.max(...vs)),
 			inviteExpirationTime: calc('inviteExpirationTime', vs => Math.max(...vs)),
 			canManageCustomEmojis: calc('canManageCustomEmojis', vs => vs.some(v => v === true)),
+			canManageAvatarDecorations: calc('canManageAvatarDecorations', vs => vs.some(v => v === true)),
 			canSearchNotes: calc('canSearchNotes', vs => vs.some(v => v === true)),
 			canUseTranslator: calc('canUseTranslator', vs => vs.some(v => v === true)),
 			canHideAds: calc('canHideAds', vs => vs.some(v => v === true)),
diff --git a/packages/backend/src/core/activitypub/ApRendererService.ts b/packages/backend/src/core/activitypub/ApRendererService.ts
index bfbe62e2a9..8facc2536c 100644
--- a/packages/backend/src/core/activitypub/ApRendererService.ts
+++ b/packages/backend/src/core/activitypub/ApRendererService.ts
@@ -497,6 +497,7 @@ export class ApRendererService {
 			preferredUsername: user.username,
 			name: user.name,
 			summary: profile.description ? this.mfmService.toHtml(mfm.parse(profile.description)) : null,
+			_misskey_summary: profile.description,
 			icon: avatar ? this.renderImage(avatar) : null,
 			image: banner ? this.renderImage(banner) : null,
 			backgroundUrl: background ? this.renderImage(background) : null,
@@ -796,6 +797,7 @@ export class ApRendererService {
 					'_misskey_quote': 'misskey:_misskey_quote',
 					'_misskey_reaction': 'misskey:_misskey_reaction',
 					'_misskey_votes': 'misskey:_misskey_votes',
+					'_misskey_summary': 'misskey:_misskey_summary',
 					'isCat': 'misskey:isCat',
 					// Firefish
 					firefish: "https://joinfirefish.org/ns#",
diff --git a/packages/backend/src/core/activitypub/models/ApPersonService.ts b/packages/backend/src/core/activitypub/models/ApPersonService.ts
index 09aa9277fb..a55181a9d1 100644
--- a/packages/backend/src/core/activitypub/models/ApPersonService.ts
+++ b/packages/backend/src/core/activitypub/models/ApPersonService.ts
@@ -334,9 +334,17 @@ export class ApPersonService implements OnModuleInit {
 					emojis,
 				})) as MiRemoteUser;
 
+				let _description: string | null = null;
+
+				if (person._misskey_summary) {
+					_description = truncate(person._misskey_summary, summaryLength);
+				} else if (person.summary) {
+					_description = this.apMfmService.htmlToMfm(truncate(person.summary, summaryLength), person.tag);
+				}
+
 				await transactionalEntityManager.save(new MiUserProfile({
 					userId: user.id,
-					description: person.summary ? this.apMfmService.htmlToMfm(truncate(person.summary, summaryLength), person.tag) : null,
+					description: _description,
 					url,
 					fields,
 					birthday: bday?.[0] ?? null,
@@ -505,10 +513,18 @@ export class ApPersonService implements OnModuleInit {
 			});
 		}
 
+		let _description: string | null = null;
+
+		if (person._misskey_summary) {
+			_description = truncate(person._misskey_summary, summaryLength);
+		} else if (person.summary) {
+			_description = this.apMfmService.htmlToMfm(truncate(person.summary, summaryLength), person.tag);
+		}
+
 		await this.userProfilesRepository.update({ userId: exist.id }, {
 			url,
 			fields,
-			description: person.summary ? this.apMfmService.htmlToMfm(truncate(person.summary, summaryLength), person.tag) : null,
+			description: _description,
 			birthday: bday?.[0] ?? null,
 			location: person['vcard:Address'] ?? null,
 			listenbrainz: person.listenbrainz ?? null,
diff --git a/packages/backend/src/core/activitypub/type.ts b/packages/backend/src/core/activitypub/type.ts
index 9b19707ebb..62d7ef93f2 100644
--- a/packages/backend/src/core/activitypub/type.ts
+++ b/packages/backend/src/core/activitypub/type.ts
@@ -12,6 +12,7 @@ export interface IObject {
 	id?: string;
 	name?: string | null;
 	summary?: string;
+	_misskey_summary?: string;
 	published?: string;
 	cc?: ApObject;
 	to?: ApObject;
diff --git a/packages/backend/src/core/entities/InstanceEntityService.ts b/packages/backend/src/core/entities/InstanceEntityService.ts
index 9afe87eab7..8bba150ece 100644
--- a/packages/backend/src/core/entities/InstanceEntityService.ts
+++ b/packages/backend/src/core/entities/InstanceEntityService.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Inject, Injectable } from '@nestjs/common';
+import { Injectable } from '@nestjs/common';
 import type { Packed } from '@/misc/json-schema.js';
 import type { MiInstance } from '@/models/Instance.js';
 import { MetaService } from '@/core/MetaService.js';
diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 1453723b29..ec8e818be4 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -77,7 +77,7 @@ export class NoteEntityService implements OnModuleInit {
 
 	@bindThis
 	private async hideNote(packedNote: Packed<'Note'>, meId: MiUser['id'] | null) {
-	// TODO: isVisibleForMe を使うようにしても良さそう(型違うけど)
+		// TODO: isVisibleForMe を使うようにしても良さそう(型違うけど)
 		let hide = false;
 
 		// visibility が specified かつ自分が指定されていなかったら非表示
@@ -87,7 +87,7 @@ export class NoteEntityService implements OnModuleInit {
 			} else if (meId === packedNote.userId) {
 				hide = false;
 			} else {
-			// 指定されているかどうか
+				// 指定されているかどうか
 				const specified = packedNote.visibleUserIds!.some((id: any) => meId === id);
 
 				if (specified) {
@@ -187,27 +187,37 @@ export class NoteEntityService implements OnModuleInit {
 	}
 
 	@bindThis
-	public async populateMyReaction(noteId: MiNote['id'], meId: MiUser['id'], _hint_?: {
-		myReactions: Map<MiNote['id'], MiNoteReaction | null>;
+	public async populateMyReaction(note: { id: MiNote['id']; reactions: MiNote['reactions']; reactionAndUserPairCache?: MiNote['reactionAndUserPairCache']; }, meId: MiUser['id'], _hint_?: {
+		myReactions: Map<MiNote['id'], string | null>;
 	}) {
 		if (_hint_?.myReactions) {
-			const reaction = _hint_.myReactions.get(noteId);
+			const reaction = _hint_.myReactions.get(note.id);
 			if (reaction) {
-				return this.reactionService.convertLegacyReaction(reaction.reaction);
-			} else if (reaction === null) {
+				return this.reactionService.convertLegacyReaction(reaction);
+			} else {
+				return undefined;
+			}
+		}
+
+		const reactionsCount = Object.values(note.reactions).reduce((a, b) => a + b, 0);
+		if (reactionsCount === 0) return undefined;
+		if (note.reactionAndUserPairCache && reactionsCount <= note.reactionAndUserPairCache.length) {
+			const pair = note.reactionAndUserPairCache.find(p => p.startsWith(meId));
+			if (pair) {
+				return this.reactionService.convertLegacyReaction(pair.split('/')[1]);
+			} else {
 				return undefined;
 			}
-		// 実装上抜けがあるだけかもしれないので、「ヒントに含まれてなかったら(=undefinedなら)return」のようにはしない
 		}
 
 		// パフォーマンスのためノートが作成されてから2秒以上経っていない場合はリアクションを取得しない
-		if (this.idService.parse(noteId).date.getTime() + 2000 > Date.now()) {
+		if (this.idService.parse(note.id).date.getTime() + 2000 > Date.now()) {
 			return undefined;
 		}
 
 		const reaction = await this.noteReactionsRepository.findOneBy({
 			userId: meId,
-			noteId: noteId,
+			noteId: note.id,
 		});
 
 		if (reaction) {
@@ -293,8 +303,9 @@ export class NoteEntityService implements OnModuleInit {
 		options?: {
 			detail?: boolean;
 			skipHide?: boolean;
+			withReactionAndUserPairCache?: boolean;
 			_hint_?: {
-				myReactions: Map<MiNote['id'], MiNoteReaction | null>;
+				myReactions: Map<MiNote['id'], string | null>;
 				packedFiles: Map<MiNote['fileIds'][number], Packed<'DriveFile'> | null>;
 			};
 		},
@@ -302,6 +313,7 @@ export class NoteEntityService implements OnModuleInit {
 		const opts = Object.assign({
 			detail: true,
 			skipHide: false,
+			withReactionAndUserPairCache: false,
 		}, options);
 
 		const meId = me ? me.id : null;
@@ -343,6 +355,7 @@ export class NoteEntityService implements OnModuleInit {
 			repliesCount: note.repliesCount,
 			reactions: this.reactionService.convertLegacyReactions(note.reactions),
 			reactionEmojis: this.customEmojiService.populateEmojis(reactionEmojiNames, host),
+			reactionAndUserPairCache: opts.withReactionAndUserPairCache ? note.reactionAndUserPairCache : undefined,
 			emojis: host != null ? this.customEmojiService.populateEmojis(note.emojis, host) : undefined,
 			tags: note.tags.length > 0 ? note.tags : undefined,
 			fileIds: note.fileIds,
@@ -360,8 +373,8 @@ export class NoteEntityService implements OnModuleInit {
 			uri: note.uri ?? undefined,
 			url: note.url ?? undefined,
 			poll: note.hasPoll ? this.populatePoll(note, meId) : undefined,
-			...(meId ? {
-				myReaction: this.populateMyReaction(note.id, meId, options?._hint_),
+			...(meId && Object.keys(note.reactions).length > 0 ? {
+				myReaction: this.populateMyReaction(note, meId, options?._hint_),
 			} : {}),
 
 			...(opts.detail ? {
@@ -369,11 +382,15 @@ export class NoteEntityService implements OnModuleInit {
 
 				reply: note.replyId ? this.pack(note.reply ?? note.replyId, me, {
 					detail: false,
+					skipHide: opts.skipHide,
+					withReactionAndUserPairCache: opts.withReactionAndUserPairCache,
 					_hint_: options?._hint_,
 				}) : undefined,
 
 				renote: note.renoteId ? this.pack(note.renote ?? note.renoteId, me, {
 					detail: true,
+					skipHide: opts.skipHide,
+					withReactionAndUserPairCache: opts.withReactionAndUserPairCache,
 					_hint_: options?._hint_,
 				}) : undefined,
 			} : {}),
@@ -398,19 +415,48 @@ export class NoteEntityService implements OnModuleInit {
 		if (notes.length === 0) return [];
 
 		const meId = me ? me.id : null;
-		const myReactionsMap = new Map<MiNote['id'], MiNoteReaction | null>();
+		const myReactionsMap = new Map<MiNote['id'], string | null>();
 		if (meId) {
-			const renoteIds = notes.filter(n => n.renoteId != null).map(n => n.renoteId!);
+			const idsNeedFetchMyReaction = new Set<MiNote['id']>();
+
 			// パフォーマンスのためノートが作成されてから2秒以上経っていない場合はリアクションを取得しない
 			const oldId = this.idService.gen(Date.now() - 2000);
-			const targets = [...notes.filter(n => n.id < oldId).map(n => n.id), ...renoteIds];
-			const myReactions = await this.noteReactionsRepository.findBy({
+
+			for (const note of notes) {
+				if (note.renote && (note.text == null && note.fileIds.length === 0)) { // pure renote
+					const reactionsCount = Object.values(note.renote.reactions).reduce((a, b) => a + b, 0);
+					if (reactionsCount === 0) {
+						myReactionsMap.set(note.renote.id, null);
+					} else if (reactionsCount <= note.renote.reactionAndUserPairCache.length) {
+						const pair = note.renote.reactionAndUserPairCache.find(p => p.startsWith(meId));
+						myReactionsMap.set(note.renote.id, pair ? pair.split('/')[1] : null);
+					} else {
+						idsNeedFetchMyReaction.add(note.renote.id);
+					}
+				} else {
+					if (note.id < oldId) {
+						const reactionsCount = Object.values(note.reactions).reduce((a, b) => a + b, 0);
+						if (reactionsCount === 0) {
+							myReactionsMap.set(note.id, null);
+						} else if (reactionsCount <= note.reactionAndUserPairCache.length) {
+							const pair = note.reactionAndUserPairCache.find(p => p.startsWith(meId));
+							myReactionsMap.set(note.id, pair ? pair.split('/')[1] : null);
+						} else {
+							idsNeedFetchMyReaction.add(note.id);
+						}
+					} else {
+						myReactionsMap.set(note.id, null);
+					}
+				}
+			}
+
+			const myReactions = idsNeedFetchMyReaction.size > 0 ? await this.noteReactionsRepository.findBy({
 				userId: meId,
-				noteId: In(targets),
-			});
+				noteId: In(Array.from(idsNeedFetchMyReaction)),
+			}) : [];
 
-			for (const target of targets) {
-				myReactionsMap.set(target, myReactions.find(reaction => reaction.noteId === target) ?? null);
+			for (const id of idsNeedFetchMyReaction) {
+				myReactionsMap.set(id, myReactions.find(reaction => reaction.noteId === id)?.reaction ?? null);
 			}
 		}
 
diff --git a/packages/backend/src/core/entities/NotificationEntityService.ts b/packages/backend/src/core/entities/NotificationEntityService.ts
index 3ee7c91f3a..9542815bd7 100644
--- a/packages/backend/src/core/entities/NotificationEntityService.ts
+++ b/packages/backend/src/core/entities/NotificationEntityService.ts
@@ -7,7 +7,7 @@ import { Inject, Injectable } from '@nestjs/common';
 import { ModuleRef } from '@nestjs/core';
 import { In } from 'typeorm';
 import { DI } from '@/di-symbols.js';
-import type { AccessTokensRepository, FollowRequestsRepository, NotesRepository, MiUser, UsersRepository } from '@/models/_.js';
+import type { FollowRequestsRepository, NotesRepository, MiUser, UsersRepository } from '@/models/_.js';
 import { awaitAll } from '@/misc/prelude/await-all.js';
 import type { MiNotification } from '@/models/Notification.js';
 import type { MiNote } from '@/models/Note.js';
@@ -40,9 +40,6 @@ export class NotificationEntityService implements OnModuleInit {
 		@Inject(DI.followRequestsRepository)
 		private followRequestsRepository: FollowRequestsRepository,
 
-		@Inject(DI.accessTokensRepository)
-		private accessTokensRepository: AccessTokensRepository,
-
 		//private userEntityService: UserEntityService,
 		//private noteEntityService: NoteEntityService,
 		//private customEmojiService: CustomEmojiService,
@@ -69,7 +66,6 @@ export class NotificationEntityService implements OnModuleInit {
 		},
 	): Promise<Packed<'Notification'>> {
 		const notification = src;
-		const token = notification.appAccessTokenId ? await this.accessTokensRepository.findOneByOrFail({ id: notification.appAccessTokenId }) : null;
 		const noteIfNeed = NOTE_REQUIRED_NOTIFICATION_TYPES.has(notification.type) && notification.noteId != null ? (
 			hint?.packedNotes != null
 				? hint.packedNotes.get(notification.noteId)
@@ -100,8 +96,8 @@ export class NotificationEntityService implements OnModuleInit {
 			} : {}),
 			...(notification.type === 'app' ? {
 				body: notification.customBody,
-				header: notification.customHeader ?? token?.name,
-				icon: notification.customIcon ?? token?.iconUrl,
+				header: notification.customHeader,
+				icon: notification.customIcon,
 			} : {}),
 		});
 	}
diff --git a/packages/backend/src/core/entities/SigninEntityService.ts b/packages/backend/src/core/entities/SigninEntityService.ts
index 8c88e8560a..6bde3e589a 100644
--- a/packages/backend/src/core/entities/SigninEntityService.ts
+++ b/packages/backend/src/core/entities/SigninEntityService.ts
@@ -7,10 +7,12 @@ import { Injectable } from '@nestjs/common';
 import type { } from '@/models/Blocking.js';
 import type { MiSignin } from '@/models/Signin.js';
 import { bindThis } from '@/decorators.js';
+import { IdService } from '@/core/IdService.js';
 
 @Injectable()
 export class SigninEntityService {
 	constructor(
+		private idService: IdService,
 	) {
 	}
 
@@ -18,7 +20,13 @@ export class SigninEntityService {
 	public async pack(
 		src: MiSignin,
 	) {
-		return src;
+		return {
+			id: src.id,
+			createdAt: this.idService.parse(src.id).date.toISOString(),
+			ip: src.ip,
+			headers: src.headers,
+			success: src.success,
+		};
 	}
 }
 
diff --git a/packages/backend/src/core/entities/UserEntityService.ts b/packages/backend/src/core/entities/UserEntityService.ts
index 02fbd50ee4..60b3c165ab 100644
--- a/packages/backend/src/core/entities/UserEntityService.ts
+++ b/packages/backend/src/core/entities/UserEntityService.ts
@@ -21,9 +21,10 @@ import { RoleService } from '@/core/RoleService.js';
 import { ApPersonService } from '@/core/activitypub/models/ApPersonService.js';
 import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
 import { IdService } from '@/core/IdService.js';
+import type { AnnouncementService } from '@/core/AnnouncementService.js';
+import type { CustomEmojiService } from '@/core/CustomEmojiService.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
 import type { OnModuleInit } from '@nestjs/common';
-import type { AnnouncementService } from '../AnnouncementService.js';
-import type { CustomEmojiService } from '../CustomEmojiService.js';
 import type { NoteEntityService } from './NoteEntityService.js';
 import type { DriveFileEntityService } from './DriveFileEntityService.js';
 import type { PageEntityService } from './PageEntityService.js';
@@ -62,6 +63,7 @@ export class UserEntityService implements OnModuleInit {
 	private roleService: RoleService;
 	private federatedInstanceService: FederatedInstanceService;
 	private idService: IdService;
+	private avatarDecorationService: AvatarDecorationService;
 
 	constructor(
 		private moduleRef: ModuleRef,
@@ -126,6 +128,7 @@ export class UserEntityService implements OnModuleInit {
 		this.roleService = this.moduleRef.get('RoleService');
 		this.federatedInstanceService = this.moduleRef.get('FederatedInstanceService');
 		this.idService = this.moduleRef.get('IdService');
+		this.avatarDecorationService = this.moduleRef.get('AvatarDecorationService');
 	}
 
 	//#region Validators
@@ -351,9 +354,11 @@ export class UserEntityService implements OnModuleInit {
 
 		const isModerator = isMe && opts.detail ? this.roleService.isModerator(user) : null;
 		const isAdmin = isMe && opts.detail ? this.roleService.isAdministrator(user) : null;
-		const unreadAnnouncements = isMe && opts.detail ? await this.announcementService.getUnreadAnnouncements(user) : null;
-
-		const falsy = opts.detail ? false : undefined;
+		const unreadAnnouncements = isMe && opts.detail ?
+			(await this.announcementService.getUnreadAnnouncements(user)).map((announcement) => ({
+				createdAt: this.idService.parse(announcement.id).date.toISOString(),
+				...announcement,
+			})) : null;
 
 		const checkHost = user.host == null ? this.config.host : user.host;
 
@@ -366,10 +371,16 @@ export class UserEntityService implements OnModuleInit {
 			avatarBlurhash: user.avatarBlurhash,
 			description: mastoapi ? mastoapi.description : profile ? profile.description : '',
 			createdAt: this.idService.parse(user.id).date.toISOString(),
+			avatarDecorations: user.avatarDecorations.length > 0 ? this.avatarDecorationService.getAll().then(decorations => user.avatarDecorations.filter(ud => decorations.some(d => d.id === ud.id)).map(ud => ({
+				id: ud.id,
+				angle: ud.angle || undefined,
+				flipH: ud.flipH || undefined,
+				url: decorations.find(d => d.id === ud.id)!.url,
+			}))) : [],
 			isBot: user.isBot,
 			isCat: user.isCat,
 			isSilenced: user.isSilenced || this.roleService.getUserPolicies(user.id).then(r => !r.canPublicNote),
-			speakAsCat: user.speakAsCat ?? falsy,
+			speakAsCat: user.speakAsCat ?? false,
 			approved: user.approved,
 			instance: user.host ? this.federatedInstanceService.federatedInstanceCache.fetch(user.host).then(instance => instance ? {
 				name: instance.name,
diff --git a/packages/backend/src/di-symbols.ts b/packages/backend/src/di-symbols.ts
index ccaa810f5c..0c5ac8f2d3 100644
--- a/packages/backend/src/di-symbols.ts
+++ b/packages/backend/src/di-symbols.ts
@@ -18,6 +18,7 @@ export const DI = {
 	announcementsRepository: Symbol('announcementsRepository'),
 	announcementReadsRepository: Symbol('announcementReadsRepository'),
 	appsRepository: Symbol('appsRepository'),
+	avatarDecorationsRepository: Symbol('avatarDecorationsRepository'),
 	noteFavoritesRepository: Symbol('noteFavoritesRepository'),
 	noteThreadMutingsRepository: Symbol('noteThreadMutingsRepository'),
 	noteReactionsRepository: Symbol('noteReactionsRepository'),
diff --git a/packages/backend/src/misc/is-pure-renote.ts b/packages/backend/src/misc/is-pure-renote.ts
new file mode 100644
index 0000000000..994d981522
--- /dev/null
+++ b/packages/backend/src/misc/is-pure-renote.ts
@@ -0,0 +1,10 @@
+import type { MiNote } from '@/models/Note.js';
+
+export function isPureRenote(note: MiNote): note is MiNote & { renoteId: NonNullable<MiNote['renoteId']> } {
+	if (!note.renoteId) return false;
+
+	if (note.text) return false; // it's quoted with text
+	if (note.fileIds.length !== 0) return false; // it's quoted with files
+	if (note.hasPoll) return false; // it's quoted with poll
+	return true;
+}
diff --git a/packages/backend/src/misc/nyaize.ts b/packages/backend/src/misc/nyaize.ts
deleted file mode 100644
index 0ac77e1006..0000000000
--- a/packages/backend/src/misc/nyaize.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and other misskey contributors
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-export function nyaize(text: string): string {
-	return text
-		// ja-JP
-		.replaceAll('な', 'にゃ').replaceAll('ナ', 'ニャ').replaceAll('ﾅ', 'ﾆｬ')
-		// en-US
-		.replace(/(?<=n)a/gi, x => x === 'A' ? 'YA' : 'ya')
-		.replace(/(?<=morn)ing/gi, x => x === 'ING' ? 'YAN' : 'yan')
-		.replace(/(?<=every)one/gi, x => x === 'ONE' ? 'NYAN' : 'nyan')
-		// ko-KR
-		.replace(/[나-낳]/g, match => String.fromCharCode(
-			match.charCodeAt(0)! + '냐'.charCodeAt(0) - '나'.charCodeAt(0),
-		))
-		.replace(/(다$)|(다(?=\.))|(다(?= ))|(다(?=!))|(다(?=\?))/gm, '다냥')
-		.replace(/(야(?=\?))|(야$)|(야(?= ))/gm, '냥');
-}
diff --git a/packages/backend/src/models/AvatarDecoration.ts b/packages/backend/src/models/AvatarDecoration.ts
new file mode 100644
index 0000000000..08ebbdeac1
--- /dev/null
+++ b/packages/backend/src/models/AvatarDecoration.ts
@@ -0,0 +1,39 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Entity, PrimaryColumn, Index, Column, ManyToOne, JoinColumn } from 'typeorm';
+import { id } from './util/id.js';
+
+@Entity('avatar_decoration')
+export class MiAvatarDecoration {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Column('timestamp with time zone', {
+		nullable: true,
+	})
+	public updatedAt: Date | null;
+
+	@Column('varchar', {
+		length: 1024,
+	})
+	public url: string;
+
+	@Column('varchar', {
+		length: 256,
+	})
+	public name: string;
+
+	@Column('varchar', {
+		length: 2048,
+	})
+	public description: string;
+
+	// TODO: 定期ジョブで存在しなくなったロールIDを除去するようにする
+	@Column('varchar', {
+		array: true, length: 128, default: '{}',
+	})
+	public roleIdsThatCanBeUsedThisDecoration: string[];
+}
diff --git a/packages/backend/src/models/Meta.ts b/packages/backend/src/models/Meta.ts
index fca214a372..bb713c458c 100644
--- a/packages/backend/src/models/Meta.ts
+++ b/packages/backend/src/models/Meta.ts
@@ -504,6 +504,11 @@ export class MiMeta {
 	})
 	public preservedUsernames: string[];
 
+	@Column('boolean', {
+		default: true,
+	})
+	public enableFanoutTimeline: boolean;
+
 	@Column('integer', {
 		default: 300,
 	})
diff --git a/packages/backend/src/models/Note.ts b/packages/backend/src/models/Note.ts
index f57d37c166..2705282880 100644
--- a/packages/backend/src/models/Note.ts
+++ b/packages/backend/src/models/Note.ts
@@ -171,6 +171,11 @@ export class MiNote {
 	public mentionedRemoteUsers: string;
 
 	@Column('varchar', {
+		length: 1024, array: true, default: '{}',
+	})
+	public reactionAndUserPairCache: string[];
+
+	@Column('varchar', {
 		length: 128, array: true, default: '{}',
 	})
 	public emojis: string[];
diff --git a/packages/backend/src/models/RepositoryModule.ts b/packages/backend/src/models/RepositoryModule.ts
index bef053610b..0b5d3b640f 100644
--- a/packages/backend/src/models/RepositoryModule.ts
+++ b/packages/backend/src/models/RepositoryModule.ts
@@ -5,7 +5,7 @@
 
 import { Module } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
-import { MiAbuseUserReport, MiAccessToken, MiAd, MiAnnouncement, MiAnnouncementRead, MiAntenna, MiApp, MiAuthSession, MiBlocking, MiChannel, MiChannelFavorite, MiChannelFollowing, MiClip, MiClipFavorite, MiClipNote, MiDriveFile, MiDriveFolder, MiEmoji, MiFlash, MiFlashLike, MiFollowRequest, MiFollowing, MiGalleryLike, MiGalleryPost, MiHashtag, MiInstance, MiMeta, MiModerationLog, MiMuting, MiNote, MiNoteFavorite, MiNoteReaction, MiNoteThreadMuting, MiNoteUnread, MiPage, MiPageLike, MiPasswordResetRequest, MiPoll, MiPollVote, MiPromoNote, MiPromoRead, MiRegistrationTicket, MiRegistryItem, MiRelay, MiRenoteMuting, MiRetentionAggregation, MiRole, MiRoleAssignment, MiSignin, MiSwSubscription, MiUsedUsername, MiUser, MiUserIp, MiUserKeypair, MiUserList, MiUserListFavorite, MiUserListMembership, MiUserMemo, MiUserNotePining, MiUserPending, MiUserProfile, MiUserPublickey, MiUserSecurityKey, MiWebhook, NoteEdit } from './_.js';
+import { MiAbuseUserReport, MiAccessToken, MiAd, MiAnnouncement, MiAnnouncementRead, MiAntenna, MiApp, MiAuthSession, MiAvatarDecoration, MiBlocking, MiChannel, MiChannelFavorite, MiChannelFollowing, MiClip, MiClipFavorite, MiClipNote, MiDriveFile, MiDriveFolder, MiEmoji, MiFlash, MiFlashLike, MiFollowRequest, MiFollowing, MiGalleryLike, MiGalleryPost, MiHashtag, MiInstance, MiMeta, MiModerationLog, MiMuting, MiNote, MiNoteFavorite, MiNoteReaction, MiNoteThreadMuting, MiNoteUnread, MiPage, MiPageLike, MiPasswordResetRequest, MiPoll, MiPollVote, MiPromoNote, MiPromoRead, MiRegistrationTicket, MiRegistryItem, MiRelay, MiRenoteMuting, MiRetentionAggregation, MiRole, MiRoleAssignment, MiSignin, MiSwSubscription, MiUsedUsername, MiUser, MiUserIp, MiUserKeypair, MiUserList, MiUserListFavorite, MiUserListMembership, MiUserMemo, MiUserNotePining, MiUserPending, MiUserProfile, MiUserPublickey, MiUserSecurityKey, MiWebhook, NoteEdit } from './_.js';
 import type { DataSource } from 'typeorm';
 import type { Provider } from '@nestjs/common';
 
@@ -39,6 +39,12 @@ const $appsRepository: Provider = {
 	inject: [DI.db],
 };
 
+const $avatarDecorationsRepository: Provider = {
+	provide: DI.avatarDecorationsRepository,
+	useFactory: (db: DataSource) => db.getRepository(MiAvatarDecoration),
+	inject: [DI.db],
+};
+
 const $noteFavoritesRepository: Provider = {
 	provide: DI.noteFavoritesRepository,
 	useFactory: (db: DataSource) => db.getRepository(MiNoteFavorite),
@@ -408,6 +414,7 @@ const $noteEditRepository: Provider = {
 		$announcementsRepository,
 		$announcementReadsRepository,
 		$appsRepository,
+		$avatarDecorationsRepository,
 		$noteFavoritesRepository,
 		$noteThreadMutingsRepository,
 		$noteReactionsRepository,
@@ -475,6 +482,7 @@ const $noteEditRepository: Provider = {
 		$announcementsRepository,
 		$announcementReadsRepository,
 		$appsRepository,
+		$avatarDecorationsRepository,
 		$noteFavoritesRepository,
 		$noteThreadMutingsRepository,
 		$noteReactionsRepository,
diff --git a/packages/backend/src/models/User.ts b/packages/backend/src/models/User.ts
index 646caf6f63..c4bc98fc10 100644
--- a/packages/backend/src/models/User.ts
+++ b/packages/backend/src/models/User.ts
@@ -160,6 +160,15 @@ export class MiUser {
 		length: 128, nullable: true,
 	})
 	public backgroundBlurhash: string | null;
+	
+	@Column('jsonb', {
+		default: [],
+	})
+	public avatarDecorations: {
+		id: string;
+		angle: number;
+		flipH: boolean;
+	}[];
 
 	@Index()
 	@Column('varchar', {
diff --git a/packages/backend/src/models/_.ts b/packages/backend/src/models/_.ts
index b76f6d5420..2a7810235e 100644
--- a/packages/backend/src/models/_.ts
+++ b/packages/backend/src/models/_.ts
@@ -10,6 +10,7 @@ import { MiAnnouncement } from '@/models/Announcement.js';
 import { MiAnnouncementRead } from '@/models/AnnouncementRead.js';
 import { MiAntenna } from '@/models/Antenna.js';
 import { MiApp } from '@/models/App.js';
+import { MiAvatarDecoration } from '@/models/AvatarDecoration.js';
 import { MiAuthSession } from '@/models/AuthSession.js';
 import { MiBlocking } from '@/models/Blocking.js';
 import { MiChannelFollowing } from '@/models/ChannelFollowing.js';
@@ -78,6 +79,7 @@ export {
 	MiAnnouncementRead,
 	MiAntenna,
 	MiApp,
+	MiAvatarDecoration,
 	MiAuthSession,
 	MiBlocking,
 	MiChannelFollowing,
@@ -145,6 +147,7 @@ export type AnnouncementsRepository = Repository<MiAnnouncement>;
 export type AnnouncementReadsRepository = Repository<MiAnnouncementRead>;
 export type AntennasRepository = Repository<MiAntenna>;
 export type AppsRepository = Repository<MiApp>;
+export type AvatarDecorationsRepository = Repository<MiAvatarDecoration>;
 export type AuthSessionsRepository = Repository<MiAuthSession>;
 export type BlockingsRepository = Repository<MiBlocking>;
 export type ChannelFollowingsRepository = Repository<MiChannelFollowing>;
diff --git a/packages/backend/src/models/json-schema/note.ts b/packages/backend/src/models/json-schema/note.ts
index 2caf0d0c3d..38c0054b55 100644
--- a/packages/backend/src/models/json-schema/note.ts
+++ b/packages/backend/src/models/json-schema/note.ts
@@ -174,6 +174,14 @@ export const packedNoteSchema = {
 			type: 'string',
 			optional: true, nullable: false,
 		},
+		reactionAndUserPairCache: {
+			type: 'array',
+			optional: true, nullable: false,
+			items: {
+				type: 'string',
+				optional: false, nullable: false,
+			},
+		},
 
 		myReaction: {
 			type: 'object',
diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index ca2436b730..fe9180b766 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -37,6 +37,34 @@ export const packedUserLiteSchema = {
 			type: 'string',
 			nullable: true, optional: false,
 		},
+		avatarDecorations: {
+			type: 'array',
+			nullable: false, optional: false,
+			items: {
+				type: 'object',
+				nullable: false, optional: false,
+				properties: {
+					id: {
+						type: 'string',
+						nullable: false, optional: false,
+						format: 'id',
+					},
+					url: {
+						type: 'string',
+						format: 'url',
+						nullable: false, optional: false,
+					},
+					angle: {
+						type: 'number',
+						nullable: false, optional: true,
+					},
+					flipH: {
+						type: 'boolean',
+						nullable: false, optional: true,
+					},
+				},
+			},
+		},
 		isAdmin: {
 			type: 'boolean',
 			nullable: false, optional: true,
diff --git a/packages/backend/src/postgres.ts b/packages/backend/src/postgres.ts
index 5cf9d7d1aa..18773a1b66 100644
--- a/packages/backend/src/postgres.ts
+++ b/packages/backend/src/postgres.ts
@@ -18,6 +18,7 @@ import { MiAnnouncement } from '@/models/Announcement.js';
 import { MiAnnouncementRead } from '@/models/AnnouncementRead.js';
 import { MiAntenna } from '@/models/Antenna.js';
 import { MiApp } from '@/models/App.js';
+import { MiAvatarDecoration } from '@/models/AvatarDecoration.js';
 import { MiAuthSession } from '@/models/AuthSession.js';
 import { MiBlocking } from '@/models/Blocking.js';
 import { MiChannelFollowing } from '@/models/ChannelFollowing.js';
@@ -130,6 +131,7 @@ export const entities = [
 	MiMeta,
 	MiInstance,
 	MiApp,
+	MiAvatarDecoration,
 	MiAuthSession,
 	MiAccessToken,
 	MiUser,
diff --git a/packages/backend/src/server/ActivityPubServerService.ts b/packages/backend/src/server/ActivityPubServerService.ts
index a7f6f82daf..2e64d41c91 100644
--- a/packages/backend/src/server/ActivityPubServerService.ts
+++ b/packages/backend/src/server/ActivityPubServerService.ts
@@ -26,6 +26,7 @@ import { UtilityService } from '@/core/UtilityService.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { bindThis } from '@/decorators.js';
 import { IActivity } from '@/core/activitypub/type.js';
+import { isPureRenote } from '@/misc/is-pure-renote.js';
 import type { FastifyInstance, FastifyRequest, FastifyReply, FastifyPluginOptions } from 'fastify';
 import type { FindOptionsWhere } from 'typeorm';
 
@@ -88,7 +89,7 @@ export class ActivityPubServerService {
 	 */
 	@bindThis
 	private async packActivity(note: MiNote): Promise<any> {
-		if (note.renoteId && note.text == null && !note.hasPoll && (note.fileIds == null || note.fileIds.length === 0)) {
+		if (isPureRenote(note)) {
 			const renote = await this.notesRepository.findOneByOrFail({ id: note.renoteId });
 			return this.apRendererService.renderAnnounce(renote.uri ? renote.uri : `${this.config.url}/notes/${renote.id}`, note);
 		}
diff --git a/packages/backend/src/server/ServerService.ts b/packages/backend/src/server/ServerService.ts
index d03f0f5efe..16bcfc7459 100644
--- a/packages/backend/src/server/ServerService.ts
+++ b/packages/backend/src/server/ServerService.ts
@@ -75,7 +75,7 @@ export class ServerService implements OnApplicationShutdown {
 	public async launch(): Promise<void> {
 		const fastify = Fastify({
 			trustProxy: true,
-			logger: !['production', 'test'].includes(process.env.NODE_ENV ?? ''),
+			logger: false,
 		});
 		this.#fastify = fastify;
 
diff --git a/packages/backend/src/server/api/ApiCallService.ts b/packages/backend/src/server/api/ApiCallService.ts
index 085a0fd58a..66f171a5d8 100644
--- a/packages/backend/src/server/api/ApiCallService.ts
+++ b/packages/backend/src/server/api/ApiCallService.ts
@@ -318,8 +318,9 @@ export class ApiCallService implements OnApplicationShutdown {
 		}
 
 		if (ep.meta.requireRolePolicy != null && !user!.isRoot) {
+			const myRoles = await this.roleService.getUserRoles(user!.id);
 			const policies = await this.roleService.getUserPolicies(user!.id);
-			if (!policies[ep.meta.requireRolePolicy]) {
+			if (!policies[ep.meta.requireRolePolicy] && !myRoles.some(r => r.isAdministrator)) {
 				throw new ApiError({
 					message: 'You are not assigned to a required role.',
 					code: 'ROLE_PERMISSION_DENIED',
diff --git a/packages/backend/src/server/api/EndpointsModule.ts b/packages/backend/src/server/api/EndpointsModule.ts
index 19e05e5c17..c458a8fd36 100644
--- a/packages/backend/src/server/api/EndpointsModule.ts
+++ b/packages/backend/src/server/api/EndpointsModule.ts
@@ -18,6 +18,10 @@ import * as ep___admin_announcements_create from './endpoints/admin/announcement
 import * as ep___admin_announcements_delete from './endpoints/admin/announcements/delete.js';
 import * as ep___admin_announcements_list from './endpoints/admin/announcements/list.js';
 import * as ep___admin_announcements_update from './endpoints/admin/announcements/update.js';
+import * as ep___admin_avatarDecorations_create from './endpoints/admin/avatar-decorations/create.js';
+import * as ep___admin_avatarDecorations_delete from './endpoints/admin/avatar-decorations/delete.js';
+import * as ep___admin_avatarDecorations_list from './endpoints/admin/avatar-decorations/list.js';
+import * as ep___admin_avatarDecorations_update from './endpoints/admin/avatar-decorations/update.js';
 import * as ep___admin_deleteAllFilesOfAUser from './endpoints/admin/delete-all-files-of-a-user.js';
 import * as ep___admin_drive_cleanRemoteFiles from './endpoints/admin/drive/clean-remote-files.js';
 import * as ep___admin_drive_cleanup from './endpoints/admin/drive/cleanup.js';
@@ -166,6 +170,7 @@ import * as ep___federation_stats from './endpoints/federation/stats.js';
 import * as ep___following_create from './endpoints/following/create.js';
 import * as ep___following_delete from './endpoints/following/delete.js';
 import * as ep___following_update from './endpoints/following/update.js';
+import * as ep___following_update_all from './endpoints/following/update-all.js';
 import * as ep___following_invalidate from './endpoints/following/invalidate.js';
 import * as ep___following_requests_accept from './endpoints/following/requests/accept.js';
 import * as ep___following_requests_cancel from './endpoints/following/requests/cancel.js';
@@ -181,6 +186,7 @@ import * as ep___gallery_posts_show from './endpoints/gallery/posts/show.js';
 import * as ep___gallery_posts_unlike from './endpoints/gallery/posts/unlike.js';
 import * as ep___gallery_posts_update from './endpoints/gallery/posts/update.js';
 import * as ep___getOnlineUsersCount from './endpoints/get-online-users-count.js';
+import * as ep___getAvatarDecorations from './endpoints/get-avatar-decorations.js';
 import * as ep___hashtags_list from './endpoints/hashtags/list.js';
 import * as ep___hashtags_search from './endpoints/hashtags/search.js';
 import * as ep___hashtags_show from './endpoints/hashtags/show.js';
@@ -359,6 +365,7 @@ import * as ep___users_show from './endpoints/users/show.js';
 import * as ep___users_achievements from './endpoints/users/achievements.js';
 import * as ep___users_updateMemo from './endpoints/users/update-memo.js';
 import * as ep___fetchRss from './endpoints/fetch-rss.js';
+import * as ep___fetchExternalResources from './endpoints/fetch-external-resources.js';
 import * as ep___retention from './endpoints/retention.js';
 import * as ep___sponsors from './endpoints/sponsors.js';
 import { GetterService } from './GetterService.js';
@@ -377,6 +384,10 @@ const $admin_announcements_create: Provider = { provide: 'ep:admin/announcements
 const $admin_announcements_delete: Provider = { provide: 'ep:admin/announcements/delete', useClass: ep___admin_announcements_delete.default };
 const $admin_announcements_list: Provider = { provide: 'ep:admin/announcements/list', useClass: ep___admin_announcements_list.default };
 const $admin_announcements_update: Provider = { provide: 'ep:admin/announcements/update', useClass: ep___admin_announcements_update.default };
+const $admin_avatarDecorations_create: Provider = { provide: 'ep:admin/avatar-decorations/create', useClass: ep___admin_avatarDecorations_create.default };
+const $admin_avatarDecorations_delete: Provider = { provide: 'ep:admin/avatar-decorations/delete', useClass: ep___admin_avatarDecorations_delete.default };
+const $admin_avatarDecorations_list: Provider = { provide: 'ep:admin/avatar-decorations/list', useClass: ep___admin_avatarDecorations_list.default };
+const $admin_avatarDecorations_update: Provider = { provide: 'ep:admin/avatar-decorations/update', useClass: ep___admin_avatarDecorations_update.default };
 const $admin_deleteAllFilesOfAUser: Provider = { provide: 'ep:admin/delete-all-files-of-a-user', useClass: ep___admin_deleteAllFilesOfAUser.default };
 const $admin_drive_cleanRemoteFiles: Provider = { provide: 'ep:admin/drive/clean-remote-files', useClass: ep___admin_drive_cleanRemoteFiles.default };
 const $admin_drive_cleanup: Provider = { provide: 'ep:admin/drive/cleanup', useClass: ep___admin_drive_cleanup.default };
@@ -525,6 +536,7 @@ const $federation_stats: Provider = { provide: 'ep:federation/stats', useClass:
 const $following_create: Provider = { provide: 'ep:following/create', useClass: ep___following_create.default };
 const $following_delete: Provider = { provide: 'ep:following/delete', useClass: ep___following_delete.default };
 const $following_update: Provider = { provide: 'ep:following/update', useClass: ep___following_update.default };
+const $following_update_all: Provider = { provide: 'ep:following/update-all', useClass: ep___following_update_all.default };
 const $following_invalidate: Provider = { provide: 'ep:following/invalidate', useClass: ep___following_invalidate.default };
 const $following_requests_accept: Provider = { provide: 'ep:following/requests/accept', useClass: ep___following_requests_accept.default };
 const $following_requests_cancel: Provider = { provide: 'ep:following/requests/cancel', useClass: ep___following_requests_cancel.default };
@@ -540,6 +552,7 @@ const $gallery_posts_show: Provider = { provide: 'ep:gallery/posts/show', useCla
 const $gallery_posts_unlike: Provider = { provide: 'ep:gallery/posts/unlike', useClass: ep___gallery_posts_unlike.default };
 const $gallery_posts_update: Provider = { provide: 'ep:gallery/posts/update', useClass: ep___gallery_posts_update.default };
 const $getOnlineUsersCount: Provider = { provide: 'ep:get-online-users-count', useClass: ep___getOnlineUsersCount.default };
+const $getAvatarDecorations: Provider = { provide: 'ep:get-avatar-decorations', useClass: ep___getAvatarDecorations.default };
 const $hashtags_list: Provider = { provide: 'ep:hashtags/list', useClass: ep___hashtags_list.default };
 const $hashtags_search: Provider = { provide: 'ep:hashtags/search', useClass: ep___hashtags_search.default };
 const $hashtags_show: Provider = { provide: 'ep:hashtags/show', useClass: ep___hashtags_show.default };
@@ -718,6 +731,7 @@ const $users_show: Provider = { provide: 'ep:users/show', useClass: ep___users_s
 const $users_achievements: Provider = { provide: 'ep:users/achievements', useClass: ep___users_achievements.default };
 const $users_updateMemo: Provider = { provide: 'ep:users/update-memo', useClass: ep___users_updateMemo.default };
 const $fetchRss: Provider = { provide: 'ep:fetch-rss', useClass: ep___fetchRss.default };
+const $fetchExternalResources: Provider = { provide: 'ep:fetch-external-resources', useClass: ep___fetchExternalResources.default };
 const $retention: Provider = { provide: 'ep:retention', useClass: ep___retention.default };
 const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.default };
 
@@ -740,6 +754,10 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$admin_announcements_delete,
 		$admin_announcements_list,
 		$admin_announcements_update,
+		$admin_avatarDecorations_create,
+		$admin_avatarDecorations_delete,
+		$admin_avatarDecorations_list,
+		$admin_avatarDecorations_update,
 		$admin_deleteAllFilesOfAUser,
 		$admin_drive_cleanRemoteFiles,
 		$admin_drive_cleanup,
@@ -888,6 +906,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$following_create,
 		$following_delete,
 		$following_update,
+		$following_update_all,
 		$following_invalidate,
 		$following_requests_accept,
 		$following_requests_cancel,
@@ -903,6 +922,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$gallery_posts_unlike,
 		$gallery_posts_update,
 		$getOnlineUsersCount,
+		$getAvatarDecorations,
 		$hashtags_list,
 		$hashtags_search,
 		$hashtags_show,
@@ -1081,6 +1101,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$users_achievements,
 		$users_updateMemo,
 		$fetchRss,
+		$fetchExternalResources,
 		$retention,
 		$sponsors,
 	],
@@ -1097,6 +1118,10 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$admin_announcements_delete,
 		$admin_announcements_list,
 		$admin_announcements_update,
+		$admin_avatarDecorations_create,
+		$admin_avatarDecorations_delete,
+		$admin_avatarDecorations_list,
+		$admin_avatarDecorations_update,
 		$admin_deleteAllFilesOfAUser,
 		$admin_drive_cleanRemoteFiles,
 		$admin_drive_cleanup,
@@ -1245,6 +1270,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$following_create,
 		$following_delete,
 		$following_update,
+		$following_update_all,
 		$following_invalidate,
 		$following_requests_accept,
 		$following_requests_cancel,
@@ -1260,6 +1286,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$gallery_posts_unlike,
 		$gallery_posts_update,
 		$getOnlineUsersCount,
+		$getAvatarDecorations,
 		$hashtags_list,
 		$hashtags_search,
 		$hashtags_show,
@@ -1435,6 +1462,7 @@ const $sponsors: Provider = { provide: 'ep:sponsors', useClass: ep___sponsors.de
 		$users_achievements,
 		$users_updateMemo,
 		$fetchRss,
+		$fetchExternalResources,
 		$retention,
 		$sponsors,
 	],
diff --git a/packages/backend/src/server/api/StreamingApiServerService.ts b/packages/backend/src/server/api/StreamingApiServerService.ts
index badcec1b33..dc3a00617c 100644
--- a/packages/backend/src/server/api/StreamingApiServerService.ts
+++ b/packages/backend/src/server/api/StreamingApiServerService.ts
@@ -15,6 +15,7 @@ import { bindThis } from '@/decorators.js';
 import { CacheService } from '@/core/CacheService.js';
 import { MiLocalUser } from '@/models/User.js';
 import { UserService } from '@/core/UserService.js';
+import { ChannelFollowingService } from '@/core/ChannelFollowingService.js';
 import { AuthenticateService, AuthenticationError } from './AuthenticateService.js';
 import MainStreamConnection from './stream/Connection.js';
 import { ChannelsService } from './stream/ChannelsService.js';
@@ -39,6 +40,7 @@ export class StreamingApiServerService {
 		private channelsService: ChannelsService,
 		private notificationService: NotificationService,
 		private usersService: UserService,
+		private channelFollowingService: ChannelFollowingService,
 	) {
 	}
 
@@ -93,6 +95,7 @@ export class StreamingApiServerService {
 				this.noteReadService,
 				this.notificationService,
 				this.cacheService,
+				this.channelFollowingService,
 				user, app,
 			);
 
diff --git a/packages/backend/src/server/api/endpoints.ts b/packages/backend/src/server/api/endpoints.ts
index 7d82d116db..cc87bfa539 100644
--- a/packages/backend/src/server/api/endpoints.ts
+++ b/packages/backend/src/server/api/endpoints.ts
@@ -18,6 +18,10 @@ import * as ep___admin_announcements_create from './endpoints/admin/announcement
 import * as ep___admin_announcements_delete from './endpoints/admin/announcements/delete.js';
 import * as ep___admin_announcements_list from './endpoints/admin/announcements/list.js';
 import * as ep___admin_announcements_update from './endpoints/admin/announcements/update.js';
+import * as ep___admin_avatarDecorations_create from './endpoints/admin/avatar-decorations/create.js';
+import * as ep___admin_avatarDecorations_delete from './endpoints/admin/avatar-decorations/delete.js';
+import * as ep___admin_avatarDecorations_list from './endpoints/admin/avatar-decorations/list.js';
+import * as ep___admin_avatarDecorations_update from './endpoints/admin/avatar-decorations/update.js';
 import * as ep___admin_deleteAllFilesOfAUser from './endpoints/admin/delete-all-files-of-a-user.js';
 import * as ep___admin_drive_cleanRemoteFiles from './endpoints/admin/drive/clean-remote-files.js';
 import * as ep___admin_drive_cleanup from './endpoints/admin/drive/cleanup.js';
@@ -166,6 +170,7 @@ import * as ep___federation_stats from './endpoints/federation/stats.js';
 import * as ep___following_create from './endpoints/following/create.js';
 import * as ep___following_delete from './endpoints/following/delete.js';
 import * as ep___following_update from './endpoints/following/update.js';
+import * as ep___following_update_all from './endpoints/following/update-all.js';
 import * as ep___following_invalidate from './endpoints/following/invalidate.js';
 import * as ep___following_requests_accept from './endpoints/following/requests/accept.js';
 import * as ep___following_requests_cancel from './endpoints/following/requests/cancel.js';
@@ -181,6 +186,7 @@ import * as ep___gallery_posts_show from './endpoints/gallery/posts/show.js';
 import * as ep___gallery_posts_unlike from './endpoints/gallery/posts/unlike.js';
 import * as ep___gallery_posts_update from './endpoints/gallery/posts/update.js';
 import * as ep___getOnlineUsersCount from './endpoints/get-online-users-count.js';
+import * as ep___getAvatarDecorations from './endpoints/get-avatar-decorations.js';
 import * as ep___hashtags_list from './endpoints/hashtags/list.js';
 import * as ep___hashtags_search from './endpoints/hashtags/search.js';
 import * as ep___hashtags_show from './endpoints/hashtags/show.js';
@@ -359,6 +365,7 @@ import * as ep___users_show from './endpoints/users/show.js';
 import * as ep___users_achievements from './endpoints/users/achievements.js';
 import * as ep___users_updateMemo from './endpoints/users/update-memo.js';
 import * as ep___fetchRss from './endpoints/fetch-rss.js';
+import * as ep___fetchExternalResources from './endpoints/fetch-external-resources.js';
 import * as ep___retention from './endpoints/retention.js';
 import * as ep___sponsors from './endpoints/sponsors.js';
 
@@ -375,6 +382,10 @@ const eps = [
 	['admin/announcements/delete', ep___admin_announcements_delete],
 	['admin/announcements/list', ep___admin_announcements_list],
 	['admin/announcements/update', ep___admin_announcements_update],
+	['admin/avatar-decorations/create', ep___admin_avatarDecorations_create],
+	['admin/avatar-decorations/delete', ep___admin_avatarDecorations_delete],
+	['admin/avatar-decorations/list', ep___admin_avatarDecorations_list],
+	['admin/avatar-decorations/update', ep___admin_avatarDecorations_update],
 	['admin/delete-all-files-of-a-user', ep___admin_deleteAllFilesOfAUser],
 	['admin/drive/clean-remote-files', ep___admin_drive_cleanRemoteFiles],
 	['admin/drive/cleanup', ep___admin_drive_cleanup],
@@ -523,6 +534,7 @@ const eps = [
 	['following/create', ep___following_create],
 	['following/delete', ep___following_delete],
 	['following/update', ep___following_update],
+	['following/update-all', ep___following_update_all],
 	['following/invalidate', ep___following_invalidate],
 	['following/requests/accept', ep___following_requests_accept],
 	['following/requests/cancel', ep___following_requests_cancel],
@@ -538,6 +550,7 @@ const eps = [
 	['gallery/posts/unlike', ep___gallery_posts_unlike],
 	['gallery/posts/update', ep___gallery_posts_update],
 	['get-online-users-count', ep___getOnlineUsersCount],
+	['get-avatar-decorations', ep___getAvatarDecorations],
 	['hashtags/list', ep___hashtags_list],
 	['hashtags/search', ep___hashtags_search],
 	['hashtags/show', ep___hashtags_show],
@@ -716,6 +729,7 @@ const eps = [
 	['users/achievements', ep___users_achievements],
 	['users/update-memo', ep___users_updateMemo],
 	['fetch-rss', ep___fetchRss],
+	['fetch-external-resources', ep___fetchExternalResources],
 	['retention', ep___retention],
 	['sponsors', ep___sponsors],
 ];
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts
new file mode 100644
index 0000000000..ec143fcb53
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/create.ts
@@ -0,0 +1,44 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireRolePolicy: 'canManageAvatarDecorations',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		name: { type: 'string', minLength: 1 },
+		description: { type: 'string' },
+		url: { type: 'string', minLength: 1 },
+		roleIdsThatCanBeUsedThisDecoration: { type: 'array', items: {
+			type: 'string',
+		} },
+	},
+	required: ['name', 'description', 'url'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private avatarDecorationService: AvatarDecorationService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.avatarDecorationService.create({
+				name: ps.name,
+				description: ps.description,
+				url: ps.url,
+				roleIdsThatCanBeUsedThisDecoration: ps.roleIdsThatCanBeUsedThisDecoration,
+			}, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts
new file mode 100644
index 0000000000..6f1f386871
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/delete.ts
@@ -0,0 +1,38 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
+import { ApiError } from '../../../error.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireRolePolicy: 'canManageAvatarDecorations',
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+	},
+	required: ['id'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private avatarDecorationService: AvatarDecorationService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.avatarDecorationService.delete(ps.id, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts
new file mode 100644
index 0000000000..d9c669377d
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/list.ts
@@ -0,0 +1,101 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import type { AnnouncementsRepository, AnnouncementReadsRepository } from '@/models/_.js';
+import type { MiAnnouncement } from '@/models/Announcement.js';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { QueryService } from '@/core/QueryService.js';
+import { DI } from '@/di-symbols.js';
+import { IdService } from '@/core/IdService.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireRolePolicy: 'canManageAvatarDecorations',
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			properties: {
+				id: {
+					type: 'string',
+					optional: false, nullable: false,
+					format: 'id',
+					example: 'xxxxxxxxxx',
+				},
+				createdAt: {
+					type: 'string',
+					optional: false, nullable: false,
+					format: 'date-time',
+				},
+				updatedAt: {
+					type: 'string',
+					optional: false, nullable: true,
+					format: 'date-time',
+				},
+				name: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				description: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				url: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				roleIdsThatCanBeUsedThisDecoration: {
+					type: 'array',
+					optional: false, nullable: false,
+					items: {
+						type: 'string',
+						optional: false, nullable: false,
+						format: 'id',
+					},
+				},
+			},
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
+		sinceId: { type: 'string', format: 'misskey:id' },
+		untilId: { type: 'string', format: 'misskey:id' },
+		userId: { type: 'string', format: 'misskey:id', nullable: true },
+	},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private avatarDecorationService: AvatarDecorationService,
+		private idService: IdService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const avatarDecorations = await this.avatarDecorationService.getAll(true);
+
+			return avatarDecorations.map(avatarDecoration => ({
+				id: avatarDecoration.id,
+				createdAt: this.idService.parse(avatarDecoration.id).date.toISOString(),
+				updatedAt: avatarDecoration.updatedAt?.toISOString() ?? null,
+				name: avatarDecoration.name,
+				description: avatarDecoration.description,
+				url: avatarDecoration.url,
+				roleIdsThatCanBeUsedThisDecoration: avatarDecoration.roleIdsThatCanBeUsedThisDecoration,
+			}));
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts
new file mode 100644
index 0000000000..5ea9a40762
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/admin/avatar-decorations/update.ts
@@ -0,0 +1,50 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
+import { ApiError } from '../../../error.js';
+
+export const meta = {
+	tags: ['admin'],
+
+	requireCredential: true,
+	requireRolePolicy: 'canManageAvatarDecorations',
+
+	errors: {
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		id: { type: 'string', format: 'misskey:id' },
+		name: { type: 'string', minLength: 1 },
+		description: { type: 'string' },
+		url: { type: 'string', minLength: 1 },
+		roleIdsThatCanBeUsedThisDecoration: { type: 'array', items: {
+			type: 'string',
+		} },
+	},
+	required: ['id'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private avatarDecorationService: AvatarDecorationService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.avatarDecorationService.update(ps.id, {
+				name: ps.name,
+				description: ps.description,
+				url: ps.url,
+				roleIdsThatCanBeUsedThisDecoration: ps.roleIdsThatCanBeUsedThisDecoration,
+			}, me);
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index a6e483254c..f737a75972 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -110,11 +110,11 @@ export const meta = {
 				optional: false, nullable: false,
 			},
 			silencedHosts: {
-				type: "array",
+				type: 'array',
 				optional: true,
 				nullable: false,
 				items: {
-					type: "string",
+					type: 'string',
 					optional: false,
 					nullable: false,
 				},
@@ -303,6 +303,10 @@ export const meta = {
 				type: 'object',
 				optional: false, nullable: false,
 			},
+			enableFanoutTimeline: {
+				type: 'boolean',
+				optional: false, nullable: false,
+			},
 			perLocalUserUserTimelineCacheMax: {
 				type: 'number',
 				optional: false, nullable: false,
@@ -434,6 +438,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				enableIdenticonGeneration: instance.enableIdenticonGeneration,
 				policies: { ...DEFAULT_POLICIES, ...instance.policies },
 				manifestJsonOverride: instance.manifestJsonOverride,
+				enableFanoutTimeline: instance.enableFanoutTimeline,
 				perLocalUserUserTimelineCacheMax: instance.perLocalUserUserTimelineCacheMax,
 				perRemoteUserUserTimelineCacheMax: instance.perRemoteUserUserTimelineCacheMax,
 				perUserHomeTimelineCacheMax: instance.perUserHomeTimelineCacheMax,
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 2276eb0b18..915021601a 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -123,6 +123,7 @@ export const paramDef = {
 		serverRules: { type: 'array', items: { type: 'string' } },
 		preservedUsernames: { type: 'array', items: { type: 'string' } },
 		manifestJsonOverride: { type: 'string' },
+		enableFanoutTimeline: { type: 'boolean' },
 		perLocalUserUserTimelineCacheMax: { type: 'integer' },
 		perRemoteUserUserTimelineCacheMax: { type: 'integer' },
 		perUserHomeTimelineCacheMax: { type: 'integer' },
@@ -495,6 +496,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.manifestJsonOverride = ps.manifestJsonOverride;
 			}
 
+			if (ps.enableFanoutTimeline !== undefined) {
+				set.enableFanoutTimeline = ps.enableFanoutTimeline;
+			}
+
 			if (ps.perLocalUserUserTimelineCacheMax !== undefined) {
 				set.perLocalUserUserTimelineCacheMax = ps.perLocalUserUserTimelineCacheMax;
 			}
diff --git a/packages/backend/src/server/api/endpoints/channels/follow.ts b/packages/backend/src/server/api/endpoints/channels/follow.ts
index 76ec6be805..bb5a477eb8 100644
--- a/packages/backend/src/server/api/endpoints/channels/follow.ts
+++ b/packages/backend/src/server/api/endpoints/channels/follow.ts
@@ -5,9 +5,9 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { ChannelFollowingsRepository, ChannelsRepository } from '@/models/_.js';
-import { IdService } from '@/core/IdService.js';
+import type { ChannelsRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
+import { ChannelFollowingService } from '@/core/ChannelFollowingService.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -41,11 +41,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.channelsRepository)
 		private channelsRepository: ChannelsRepository,
-
-		@Inject(DI.channelFollowingsRepository)
-		private channelFollowingsRepository: ChannelFollowingsRepository,
-
-		private idService: IdService,
+		private channelFollowingService: ChannelFollowingService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const channel = await this.channelsRepository.findOneBy({
@@ -56,11 +52,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.noSuchChannel);
 			}
 
-			await this.channelFollowingsRepository.insert({
-				id: this.idService.gen(),
-				followerId: me.id,
-				followeeId: channel.id,
-			});
+			await this.channelFollowingService.follow(me, channel);
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/channels/unfollow.ts b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
index 46883dd548..c95332c7f8 100644
--- a/packages/backend/src/server/api/endpoints/channels/unfollow.ts
+++ b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
@@ -5,8 +5,9 @@
 
 import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import type { ChannelFollowingsRepository, ChannelsRepository } from '@/models/_.js';
+import type { ChannelsRepository } from '@/models/_.js';
 import { DI } from '@/di-symbols.js';
+import { ChannelFollowingService } from '@/core/ChannelFollowingService.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -40,9 +41,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 	constructor(
 		@Inject(DI.channelsRepository)
 		private channelsRepository: ChannelsRepository,
-
-		@Inject(DI.channelFollowingsRepository)
-		private channelFollowingsRepository: ChannelFollowingsRepository,
+		private channelFollowingService: ChannelFollowingService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const channel = await this.channelsRepository.findOneBy({
@@ -53,10 +52,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.noSuchChannel);
 			}
 
-			await this.channelFollowingsRepository.delete({
-				followerId: me.id,
-				followeeId: channel.id,
-			});
+			await this.channelFollowingService.unfollow(me, channel);
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/fetch-external-resources.ts b/packages/backend/src/server/api/endpoints/fetch-external-resources.ts
new file mode 100644
index 0000000000..d7b46cc666
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/fetch-external-resources.ts
@@ -0,0 +1,72 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { createHash } from 'crypto';
+import ms from 'ms';
+import { Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { HttpRequestService } from '@/core/HttpRequestService.js';
+import { ApiError } from '../error.js';
+
+export const meta = {
+	tags: ['meta'],
+
+	requireCredential: true,
+
+	limit: {
+		duration: ms('1hour'),
+		max: 50,
+	},
+
+	errors: {
+		invalidSchema: {
+			message: 'External resource returned invalid schema.',
+			code: 'EXT_RESOURCE_RETURNED_INVALID_SCHEMA',
+			id: 'bb774091-7a15-4a70-9dc5-6ac8cf125856',
+		},
+		hashUnmached: {
+			message: 'Hash did not match.',
+			code: 'EXT_RESOURCE_HASH_DIDNT_MATCH',
+			id: '693ba8ba-b486-40df-a174-72f8279b56a4',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		url: { type: 'string' },
+		hash: { type: 'string' },
+	},
+	required: ['url', 'hash'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private httpRequestService: HttpRequestService,
+	) {
+		super(meta, paramDef, async (ps) => {
+			const res = await this.httpRequestService.getJson<{
+				type: string;
+				data: string;
+			}>(ps.url);
+
+			if (!res.data || !res.type) {
+				throw new ApiError(meta.errors.invalidSchema);
+			}
+
+			const resHash = createHash('sha512').update(res.data.replace(/\r\n/g, '\n')).digest('hex');
+			if (resHash !== ps.hash) {
+				throw new ApiError(meta.errors.hashUnmached);
+			}
+
+			return {
+				type: res.type,
+				data: res.data,
+			};
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/following/update-all.ts b/packages/backend/src/server/api/endpoints/following/update-all.ts
new file mode 100644
index 0000000000..28734cfdbd
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/following/update-all.ts
@@ -0,0 +1,54 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import ms from 'ms';
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import type { FollowingsRepository } from '@/models/_.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+import { UserFollowingService } from '@/core/UserFollowingService.js';
+import { DI } from '@/di-symbols.js';
+import { GetterService } from '@/server/api/GetterService.js';
+import { ApiError } from '../../error.js';
+
+export const meta = {
+	tags: ['following', 'users'],
+
+	limit: {
+		duration: ms('1hour'),
+		max: 10,
+	},
+
+	requireCredential: true,
+
+	kind: 'write:following',
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		notify: { type: 'string', enum: ['normal', 'none'] },
+		withReplies: { type: 'boolean' },
+	},
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.followingsRepository)
+		private followingsRepository: FollowingsRepository,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			await this.followingsRepository.update({
+				followerId: me.id,
+			}, {
+				notify: ps.notify != null ? (ps.notify === 'none' ? null : ps.notify) : undefined,
+				withReplies: ps.withReplies != null ? ps.withReplies : undefined,
+			});
+
+			return;
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/get-avatar-decorations.ts b/packages/backend/src/server/api/endpoints/get-avatar-decorations.ts
new file mode 100644
index 0000000000..dbe1626149
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/get-avatar-decorations.ts
@@ -0,0 +1,82 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { IsNull } from 'typeorm';
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import { DI } from '@/di-symbols.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
+import { RoleService } from '@/core/RoleService.js';
+
+export const meta = {
+	tags: ['users'],
+
+	requireCredential: false,
+
+	res: {
+		type: 'array',
+		optional: false, nullable: false,
+		items: {
+			type: 'object',
+			optional: false, nullable: false,
+			properties: {
+				id: {
+					type: 'string',
+					optional: false, nullable: false,
+					format: 'id',
+					example: 'xxxxxxxxxx',
+				},
+				name: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				description: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				url: {
+					type: 'string',
+					optional: false, nullable: false,
+				},
+				roleIdsThatCanBeUsedThisDecoration: {
+					type: 'array',
+					optional: false, nullable: false,
+					items: {
+						type: 'string',
+						optional: false, nullable: false,
+						format: 'id',
+					},
+				},
+			},
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {},
+	required: [],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		private avatarDecorationService: AvatarDecorationService,
+		private roleService: RoleService,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			const decorations = await this.avatarDecorationService.getAll(true);
+			const allRoles = await this.roleService.getRoles();
+
+			return decorations.map(decoration => ({
+				id: decoration.id,
+				name: decoration.name,
+				description: decoration.description,
+				url: decoration.url,
+				roleIdsThatCanBeUsedThisDecoration: decoration.roleIdsThatCanBeUsedThisDecoration.filter(roleId => allRoles.some(role => role.id === roleId)),
+			}));
+		});
+	}
+}
diff --git a/packages/backend/src/server/api/endpoints/i/revoke-token.ts b/packages/backend/src/server/api/endpoints/i/revoke-token.ts
index 8e2f271005..e8bb282533 100644
--- a/packages/backend/src/server/api/endpoints/i/revoke-token.ts
+++ b/packages/backend/src/server/api/endpoints/i/revoke-token.ts
@@ -18,8 +18,12 @@ export const paramDef = {
 	type: 'object',
 	properties: {
 		tokenId: { type: 'string', format: 'misskey:id' },
+		token: { type: 'string' },
 	},
-	required: ['tokenId'],
+	anyOf: [
+		{ required: ['tokenId'] },
+		{ required: ['token'] },
+	],
 } as const;
 
 @Injectable()
@@ -29,13 +33,24 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private accessTokensRepository: AccessTokensRepository,
 	) {
 		super(meta, paramDef, async (ps, me) => {
-			const tokenExist = await this.accessTokensRepository.exist({ where: { id: ps.tokenId } });
+			if (ps.tokenId) {
+				const tokenExist = await this.accessTokensRepository.exist({ where: { id: ps.tokenId } });
 
-			if (tokenExist) {
-				await this.accessTokensRepository.delete({
-					id: ps.tokenId,
-					userId: me.id,
-				});
+				if (tokenExist) {
+					await this.accessTokensRepository.delete({
+						id: ps.tokenId,
+						userId: me.id,
+					});
+				}
+			} else if (ps.token) {
+				const tokenExist = await this.accessTokensRepository.exist({ where: { token: ps.token } });
+
+				if (tokenExist) {
+					await this.accessTokensRepository.delete({
+						token: ps.token,
+						userId: me.id,
+					});
+				}
 			}
 		});
 	}
diff --git a/packages/backend/src/server/api/endpoints/i/update.ts b/packages/backend/src/server/api/endpoints/i/update.ts
index 1011a8d31a..ec2d5d6579 100644
--- a/packages/backend/src/server/api/endpoints/i/update.ts
+++ b/packages/backend/src/server/api/endpoints/i/update.ts
@@ -32,6 +32,7 @@ import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.j
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import type { Config } from '@/config.js';
 import { safeForSql } from '@/misc/safe-for-sql.js';
+import { AvatarDecorationService } from '@/core/AvatarDecorationService.js';
 import { ApiLoggerService } from '../../ApiLoggerService.js';
 import { ApiError } from '../../error.js';
 
@@ -144,6 +145,15 @@ export const paramDef = {
 		listenbrainz: { ...listenbrainzSchema, nullable: true },
 		lang: { type: 'string', enum: [null, ...Object.keys(langmap)] as string[], nullable: true },
 		avatarId: { type: 'string', format: 'misskey:id', nullable: true },
+		avatarDecorations: { type: 'array', maxItems: 1, items: {
+			type: 'object',
+			properties: {
+				id: { type: 'string', format: 'misskey:id' },
+				angle: { type: 'number', nullable: true, maximum: 0.5, minimum: -0.5 },
+				flipH: { type: 'boolean', nullable: true },
+			},
+			required: ['id'],
+		} },
 		bannerId: { type: 'string', format: 'misskey:id', nullable: true },
 		backgroundId: { type: 'string', format: 'misskey:id', nullable: true },
 		fields: {
@@ -222,6 +232,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private roleService: RoleService,
 		private cacheService: CacheService,
 		private httpRequestService: HttpRequestService,
+		private avatarDecorationService: AvatarDecorationService,
 	) {
 		super(meta, paramDef, async (ps, _user, token) => {
 			const user = await this.usersRepository.findOneByOrFail({ id: _user.id }) as MiLocalUser;
@@ -327,6 +338,21 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				updates.backgroundUrl = null;
 				updates.backgroundBlurhash = null;
 			}
+			
+			if (ps.avatarDecorations) {
+				const decorations = await this.avatarDecorationService.getAll(true);
+				const myRoles = await this.roleService.getUserRoles(user.id);
+				const allRoles = await this.roleService.getRoles();
+				const decorationIds = decorations
+					.filter(d => d.roleIdsThatCanBeUsedThisDecoration.filter(roleId => allRoles.some(r => r.id === roleId)).length === 0 || myRoles.some(r => d.roleIdsThatCanBeUsedThisDecoration.includes(r.id)))
+					.map(d => d.id);
+
+				updates.avatarDecorations = ps.avatarDecorations.filter(d => decorationIds.includes(d.id)).map(d => ({
+					id: d.id,
+					angle: d.angle ?? 0,
+					flipH: d.flipH ?? false,
+				}));
+			}
 
 			if (ps.pinnedPageId) {
 				const page = await this.pagesRepository.findOneBy({ id: ps.pinnedPageId });
@@ -453,9 +479,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		const myLink = `${this.config.url}/@${user.username}`;
 
-		const includesMyLink = Array.from(doc.getElementsByTagName('a')).some(a => a.href === myLink);
+		const aEls = Array.from(doc.getElementsByTagName('a'));
+		const linkEls = Array.from(doc.getElementsByTagName('link'));
+
+		const includesMyLink = aEls.some(a => a.href === myLink);
+		const includesRelMeLinks = [...aEls, ...linkEls].some(link => link.rel === 'me' && link.href === myLink);
 
-		if (includesMyLink) {
+		if (includesMyLink || includesRelMeLinks) {
 			await this.userProfilesRepository.createQueryBuilder('profile').update()
 				.where('userId = :userId', { userId: user.id })
 				.set({
diff --git a/packages/backend/src/server/api/endpoints/notes/create.ts b/packages/backend/src/server/api/endpoints/notes/create.ts
index 3ae4ac044a..649068fb20 100644
--- a/packages/backend/src/server/api/endpoints/notes/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/create.ts
@@ -17,6 +17,7 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { NoteCreateService } from '@/core/NoteCreateService.js';
 import { DI } from '@/di-symbols.js';
 import { ApiError } from '../../error.js';
+import { isPureRenote } from '@/misc/is-pure-renote.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -221,7 +222,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 				if (renote == null) {
 					throw new ApiError(meta.errors.noSuchRenoteTarget);
-				} else if (renote.renoteId && !renote.text && !renote.fileIds && !renote.hasPoll) {
+				} else if (isPureRenote(renote)) {
 					throw new ApiError(meta.errors.cannotReRenote);
 				}
 
@@ -254,7 +255,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 				if (reply == null) {
 					throw new ApiError(meta.errors.noSuchReplyTarget);
-				} else if (reply.renoteId && !reply.text && !reply.fileIds && !reply.hasPoll) {
+				} else if (isPureRenote(reply)) {
 					throw new ApiError(meta.errors.cannotReplyToPureRenote);
 				}
 
diff --git a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
index ada88ea4f2..47dda846a7 100644
--- a/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/hybrid-timeline.ts
@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository, FollowingsRepository, MiNote } from '@/models/_.js';
+import type { NotesRepository, FollowingsRepository, MiNote, ChannelFollowingsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
@@ -17,6 +17,8 @@ import { CacheService } from '@/core/CacheService.js';
 import { FunoutTimelineService } from '@/core/FunoutTimelineService.js';
 import { QueryService } from '@/core/QueryService.js';
 import { UserFollowingService } from '@/core/UserFollowingService.js';
+import { MetaService } from '@/core/MetaService.js';
+import { MiLocalUser } from '@/models/User.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -68,6 +70,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
+		@Inject(DI.channelFollowingsRepository)
+		private channelFollowingsRepository: ChannelFollowingsRepository,
+
 		private noteEntityService: NoteEntityService,
 		private roleService: RoleService,
 		private activeUsersChart: ActiveUsersChart,
@@ -76,6 +81,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private funoutTimelineService: FunoutTimelineService,
 		private queryService: QueryService,
 		private userFollowingService: UserFollowingService,
+		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
@@ -86,171 +92,224 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.stlDisabled);
 			}
 
-			const [
-				followings,
-				userIdsWhoMeMuting,
-				userIdsWhoMeMutingRenotes,
-				userIdsWhoBlockingMe,
-			] = await Promise.all([
-				this.cacheService.userFollowingsCache.fetch(me.id),
-				this.cacheService.userMutingsCache.fetch(me.id),
-				this.cacheService.renoteMutingsCache.fetch(me.id),
-				this.cacheService.userBlockedCache.fetch(me.id),
-			]);
+			const serverSettings = await this.metaService.fetch();
 
-			let noteIds: string[];
-			let shouldFallbackToDb = false;
+			if (serverSettings.enableFanoutTimeline) {
+				const [
+					userIdsWhoMeMuting,
+					userIdsWhoMeMutingRenotes,
+					userIdsWhoBlockingMe,
+				] = await Promise.all([
+					this.cacheService.userMutingsCache.fetch(me.id),
+					this.cacheService.renoteMutingsCache.fetch(me.id),
+					this.cacheService.userBlockedCache.fetch(me.id),
+				]);
 
-			if (ps.withFiles) {
-				const [htlNoteIds, ltlNoteIds] = await this.funoutTimelineService.getMulti([
-					`homeTimelineWithFiles:${me.id}`,
-					'localTimelineWithFiles',
-				], untilId, sinceId);
-				noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds]));
-			} else if (ps.withReplies) {
-				const [htlNoteIds, ltlNoteIds, ltlReplyNoteIds] = await this.funoutTimelineService.getMulti([
-					`homeTimeline:${me.id}`,
-					'localTimeline',
-					'localTimelineWithReplies',
-				], untilId, sinceId);
-				noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds, ...ltlReplyNoteIds]));
-			} else {
-				const [htlNoteIds, ltlNoteIds] = await this.funoutTimelineService.getMulti([
-					`homeTimeline:${me.id}`,
-					'localTimeline',
-				], untilId, sinceId);
-				noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds]));
-				shouldFallbackToDb = htlNoteIds.length === 0;
-			}
+				let noteIds: string[];
+				let shouldFallbackToDb = false;
 
-			noteIds.sort((a, b) => a > b ? -1 : 1);
-			noteIds = noteIds.slice(0, ps.limit);
+				if (ps.withFiles) {
+					const [htlNoteIds, ltlNoteIds] = await this.funoutTimelineService.getMulti([
+						`homeTimelineWithFiles:${me.id}`,
+						'localTimelineWithFiles',
+					], untilId, sinceId);
+					noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds]));
+				} else if (ps.withReplies) {
+					const [htlNoteIds, ltlNoteIds, ltlReplyNoteIds] = await this.funoutTimelineService.getMulti([
+						`homeTimeline:${me.id}`,
+						'localTimeline',
+						'localTimelineWithReplies',
+					], untilId, sinceId);
+					noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds, ...ltlReplyNoteIds]));
+				} else {
+					const [htlNoteIds, ltlNoteIds] = await this.funoutTimelineService.getMulti([
+						`homeTimeline:${me.id}`,
+						'localTimeline',
+					], untilId, sinceId);
+					noteIds = Array.from(new Set([...htlNoteIds, ...ltlNoteIds]));
+					shouldFallbackToDb = htlNoteIds.length === 0;
+				}
 
-			if (!shouldFallbackToDb) {
-				const query = this.notesRepository.createQueryBuilder('note')
-					.where('note.id IN (:...noteIds)', { noteIds: noteIds })
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser')
-					.leftJoinAndSelect('note.channel', 'channel');
+				noteIds.sort((a, b) => a > b ? -1 : 1);
+				noteIds = noteIds.slice(0, ps.limit);
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+				shouldFallbackToDb = shouldFallbackToDb || (noteIds.length === 0);
 
-				let timeline = await query.getMany();
+				let redisTimeline: MiNote[] = [];
 
-				timeline = timeline.filter(note => {
-					if (note.userId === me.id) {
-						return true;
-					}
-					if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
-					if (isUserRelated(note, userIdsWhoMeMuting)) return false;
-					if (note.renoteId) {
-						if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
-							if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
-							if (ps.withRenotes === false) return false;
-						}
-					}
-					if (note.user?.isSilenced && note.userId !== me.id && !followings[note.userId]) return false;
+				if (!shouldFallbackToDb) {
+					const query = this.notesRepository.createQueryBuilder('note')
+						.where('note.id IN (:...noteIds)', { noteIds: noteIds })
+						.innerJoinAndSelect('note.user', 'user')
+						.leftJoinAndSelect('note.reply', 'reply')
+						.leftJoinAndSelect('note.renote', 'renote')
+						.leftJoinAndSelect('reply.user', 'replyUser')
+						.leftJoinAndSelect('renote.user', 'renoteUser')
+						.leftJoinAndSelect('note.channel', 'channel');
 
-					return true;
-				});
+					redisTimeline = await query.getMany();
 
-				// TODO: フィルタした結果件数が足りなかった場合の対応
+					redisTimeline = redisTimeline.filter(note => {
+						if (note.userId === me.id) {
+							return true;
+						}
+						if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
+						if (isUserRelated(note, userIdsWhoMeMuting)) return false;
+						if (note.renoteId) {
+							if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
+								if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
+								if (ps.withRenotes === false) return false;
+							}
+						}
+						if (!ps.withBots && note.user?.isBot) return false;
 
-				timeline.sort((a, b) => a.id > b.id ? -1 : 1);
+						return true;
+					});
 
-				process.nextTick(() => {
-					this.activeUsersChart.read(me);
-				});
+					redisTimeline.sort((a, b) => a.id > b.id ? -1 : 1);
+				}
 
-				return await this.noteEntityService.packMany(timeline, me);
-			} else { // fallback to db
-				const followees = await this.userFollowingService.getFollowees(me.id);
+				if (redisTimeline.length > 0) {
+					process.nextTick(() => {
+						this.activeUsersChart.read(me);
+					});
 
-				const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
-					.andWhere(new Brackets(qb => {
-						if (followees.length > 0) {
-							const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
-							qb.where('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds });
-							qb.orWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)');
-						} else {
-							qb.where('note.userId = :meId', { meId: me.id });
-							qb.orWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)');
-						}
-					}))
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser');
+					return await this.noteEntityService.packMany(redisTimeline, me);
+				} else { // fallback to db
+					return await this.getFromDb({
+						untilId,
+						sinceId,
+						limit: ps.limit,
+						includeMyRenotes: ps.includeMyRenotes,
+						includeRenotedMyNotes: ps.includeRenotedMyNotes,
+						includeLocalRenotes: ps.includeLocalRenotes,
+						withFiles: ps.withFiles,
+						withReplies: ps.withReplies,
+						withBots: ps.withBots,
+					}, me);
+				}
+			} else {
+				return await this.getFromDb({
+					untilId,
+					sinceId,
+					limit: ps.limit,
+					includeMyRenotes: ps.includeMyRenotes,
+					includeRenotedMyNotes: ps.includeRenotedMyNotes,
+					includeLocalRenotes: ps.includeLocalRenotes,
+					withFiles: ps.withFiles,
+					withReplies: ps.withReplies,
+					withBots: ps.withBots,
+				}, me);
+			}
+		});
+	}
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+	private async getFromDb(ps: {
+		untilId: string | null,
+		sinceId: string | null,
+		limit: number,
+		includeMyRenotes: boolean,
+		includeRenotedMyNotes: boolean,
+		includeLocalRenotes: boolean,
+		withFiles: boolean,
+		withReplies: boolean,
+		withBots: boolean,
+	}, me: MiLocalUser) {
+		const followees = await this.userFollowingService.getFollowees(me.id);
+		const followingChannels = await this.channelFollowingsRepository.find({
+			where: {
+				followerId: me.id,
+			},
+		});
 
-				query.andWhere(new Brackets(qb => {
-					qb
-						.where('note.replyId IS NULL') // 返信ではない
-						.orWhere(new Brackets(qb => {
-							qb // 返信だけど投稿者自身への返信
-								.where('note.replyId IS NOT NULL')
-								.andWhere('note.replyUserId = note.userId');
-						}));
-				}));
+		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
+			.andWhere(new Brackets(qb => {
+				if (followees.length > 0) {
+					const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
+					qb.where('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds });
+					qb.orWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)');
+				} else {
+					qb.where('note.userId = :meId', { meId: me.id });
+					qb.orWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)');
+				}
+			}))
+			.innerJoinAndSelect('note.user', 'user')
+			.leftJoinAndSelect('note.reply', 'reply')
+			.leftJoinAndSelect('note.renote', 'renote')
+			.leftJoinAndSelect('reply.user', 'replyUser')
+			.leftJoinAndSelect('renote.user', 'renoteUser');
 
-				this.queryService.generateVisibilityQuery(query, me);
-				this.queryService.generateMutedUserQuery(query, me);
-				this.queryService.generateBlockedUserQuery(query, me);
-				this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
+		if (followingChannels.length > 0) {
+			const followingChannelIds = followingChannels.map(x => x.followeeId);
 
-				if (ps.includeMyRenotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.userId != :meId', { meId: me.id });
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
-					}));
-				}
+			query.andWhere(new Brackets(qb => {
+				qb.where('note.channelId IN (:...followingChannelIds)', { followingChannelIds });
+				qb.orWhere('note.channelId IS NULL');
+			}));
+		} else {
+			query.andWhere('note.channelId IS NULL');
+		}
 
-				if (ps.includeRenotedMyNotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.renoteUserId != :meId', { meId: me.id });
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+		if (!ps.withReplies) {
+			query.andWhere(new Brackets(qb => {
+				qb
+					.where('note.replyId IS NULL') // 返信ではない
+					.orWhere(new Brackets(qb => {
+						qb // 返信だけど投稿者自身への返信
+							.where('note.replyId IS NOT NULL')
+							.andWhere('note.replyUserId = note.userId');
 					}));
-				}
+			}));
+		}
 
-				if (ps.includeLocalRenotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.renoteUserHost IS NOT NULL');
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
-					}));
-				}
+		this.queryService.generateVisibilityQuery(query, me);
+		this.queryService.generateMutedUserQuery(query, me);
+		this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
-				if (ps.withFiles) {
-					query.andWhere('note.fileIds != \'{}\'');
-				}
-				//#endregion
+		if (ps.includeMyRenotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.userId != :meId', { meId: me.id });
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				let timeline = await query.limit(ps.limit).getMany();
+		if (ps.includeRenotedMyNotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.renoteUserId != :meId', { meId: me.id });
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				timeline = timeline.filter(note => {
-					if (note.user?.isSilenced && note.userId !== me.id && !followings[note.userId]) return false;
-					return true;
-				});
+		if (ps.includeLocalRenotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.renoteUserHost IS NOT NULL');
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				process.nextTick(() => {
-					this.activeUsersChart.read(me);
-				});
+		if (ps.withFiles) {
+			query.andWhere('note.fileIds != \'{}\'');
+		}
 
-				return await this.noteEntityService.packMany(timeline, me);
-			}
+		if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+		//#endregion
+
+		const timeline = await query.limit(ps.limit).getMany();
+
+		process.nextTick(() => {
+			this.activeUsersChart.read(me);
 		});
+
+		return await this.noteEntityService.packMany(timeline, me);
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
index 85560f12ca..dec34860b5 100644
--- a/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/local-timeline.ts
@@ -16,6 +16,8 @@ import { CacheService } from '@/core/CacheService.js';
 import { isUserRelated } from '@/misc/is-user-related.js';
 import { FunoutTimelineService } from '@/core/FunoutTimelineService.js';
 import { QueryService } from '@/core/QueryService.js';
+import { MetaService } from '@/core/MetaService.js';
+import { MiLocalUser } from '@/models/User.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
@@ -70,6 +72,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private cacheService: CacheService,
 		private funoutTimelineService: FunoutTimelineService,
 		private queryService: QueryService,
+		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
@@ -80,112 +83,148 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				throw new ApiError(meta.errors.ltlDisabled);
 			}
 
-			const [
-				followings,
-				userIdsWhoMeMuting,
-				userIdsWhoMeMutingRenotes,
-				userIdsWhoBlockingMe,
-			] = me ? await Promise.all([
-				this.cacheService.userFollowingsCache.fetch(me.id),
-				this.cacheService.userMutingsCache.fetch(me.id),
-				this.cacheService.renoteMutingsCache.fetch(me.id),
-				this.cacheService.userBlockedCache.fetch(me.id),
-			]) : [undefined, new Set<string>(), new Set<string>(), new Set<string>()];
+			const serverSettings = await this.metaService.fetch();
 
-			let noteIds: string[];
+			if (serverSettings.enableFanoutTimeline) {
+				const [
+					userIdsWhoMeMuting,
+					userIdsWhoMeMutingRenotes,
+					userIdsWhoBlockingMe,
+				] = me ? await Promise.all([
+					this.cacheService.userMutingsCache.fetch(me.id),
+					this.cacheService.renoteMutingsCache.fetch(me.id),
+					this.cacheService.userBlockedCache.fetch(me.id),
+				]) : [new Set<string>(), new Set<string>(), new Set<string>()];
 
-			if (ps.withFiles) {
-				noteIds = await this.funoutTimelineService.get('localTimelineWithFiles', untilId, sinceId);
-			} else {
-				const [nonReplyNoteIds, replyNoteIds] = await this.funoutTimelineService.getMulti([
-					'localTimeline',
-					'localTimelineWithReplies',
-				], untilId, sinceId);
-				noteIds = Array.from(new Set([...nonReplyNoteIds, ...replyNoteIds]));
-				noteIds.sort((a, b) => a > b ? -1 : 1);
-			}
+				let noteIds: string[];
 
-			noteIds = noteIds.slice(0, ps.limit);
+				if (ps.withFiles) {
+					noteIds = await this.funoutTimelineService.get('localTimelineWithFiles', untilId, sinceId);
+				} else {
+					const [nonReplyNoteIds, replyNoteIds] = await this.funoutTimelineService.getMulti([
+						'localTimeline',
+						'localTimelineWithReplies',
+					], untilId, sinceId);
+					noteIds = Array.from(new Set([...nonReplyNoteIds, ...replyNoteIds]));
+					noteIds.sort((a, b) => a > b ? -1 : 1);
+				}
 
-			if (noteIds.length > 0) {
-				const query = this.notesRepository.createQueryBuilder('note')
-					.where('note.id IN (:...noteIds)', { noteIds: noteIds })
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser')
-					.leftJoinAndSelect('note.channel', 'channel');
+				noteIds = noteIds.slice(0, ps.limit);
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+				let redisTimeline: MiNote[] = [];
 
-				let timeline = await query.getMany();
+				if (noteIds.length > 0) {
+					const query = this.notesRepository.createQueryBuilder('note')
+						.where('note.id IN (:...noteIds)', { noteIds: noteIds })
+						.innerJoinAndSelect('note.user', 'user')
+						.leftJoinAndSelect('note.reply', 'reply')
+						.leftJoinAndSelect('note.renote', 'renote')
+						.leftJoinAndSelect('reply.user', 'replyUser')
+						.leftJoinAndSelect('renote.user', 'renoteUser')
+						.leftJoinAndSelect('note.channel', 'channel');
 
-				timeline = timeline.filter(note => {
-					if (me && (note.userId === me.id)) {
-						return true;
-					}
-					if (!ps.withReplies && note.replyId && (me == null || note.replyUserId !== me.id)) return false;
-					if (me && isUserRelated(note, userIdsWhoBlockingMe)) return false;
-					if (me && isUserRelated(note, userIdsWhoMeMuting)) return false;
-					if (note.renoteId) {
-						if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
-							if (me && isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
-							if (ps.withRenotes === false) return false;
-						}
-					}
-					if (note.user?.isSilenced && me && followings && note.userId !== me.id && !followings[note.userId]) return false;
+					redisTimeline = await query.getMany();
 
-					return true;
-				});
+					redisTimeline = redisTimeline.filter(note => {
+						if (me && (note.userId === me.id)) {
+							return true;
+						}
+						if (!ps.withReplies && note.replyId && note.replyUserId !== note.userId && (me == null || note.replyUserId !== me.id)) return false;
+						if (!ps.withBots && note.user?.isBot) return false;
+						if (me && isUserRelated(note, userIdsWhoBlockingMe)) return false;
+						if (me && isUserRelated(note, userIdsWhoMeMuting)) return false;
+						if (note.renoteId) {
+							if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
+								if (me && isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
+								if (ps.withRenotes === false) return false;
+							}
+						}
 
-				// TODO: フィルタした結果件数が足りなかった場合の対応
+						return true;
+					});
 
-				timeline.sort((a, b) => a.id > b.id ? -1 : 1);
+					redisTimeline.sort((a, b) => a.id > b.id ? -1 : 1);
+				}
 
-				process.nextTick(() => {
-					if (me) {
-						this.activeUsersChart.read(me);
-					}
-				});
+				if (redisTimeline.length > 0) {
+					process.nextTick(() => {
+						if (me) {
+							this.activeUsersChart.read(me);
+						}
+					});
 
-				return await this.noteEntityService.packMany(timeline, me);
-			} else { // fallback to db
-				const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'),
-					ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
-					.andWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)')
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser');
+					return await this.noteEntityService.packMany(redisTimeline, me);
+				} else { // fallback to db
+					return await this.getFromDb({
+						untilId,
+						sinceId,
+						limit: ps.limit,
+						withFiles: ps.withFiles,
+						withReplies: ps.withReplies,
+						withBots: ps.withBots,
+					}, me);
+				}
+			} else {
+				return await this.getFromDb({
+					untilId,
+					sinceId,
+					limit: ps.limit,
+					withFiles: ps.withFiles,
+					withReplies: ps.withReplies,
+					withBots: ps.withBots,
+				}, me);
+			}
+		});
+	}
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+	private async getFromDb(ps: {
+		sinceId: string | null,
+		untilId: string | null,
+		limit: number,
+		withFiles: boolean,
+		withReplies: boolean,
+		withBots: boolean,
+	}, me: MiLocalUser | null) {
+		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'),
+			ps.sinceId, ps.untilId)
+			.andWhere('(note.visibility = \'public\') AND (note.userHost IS NULL)')
+			.innerJoinAndSelect('note.user', 'user')
+			.leftJoinAndSelect('note.reply', 'reply')
+			.leftJoinAndSelect('note.renote', 'renote')
+			.leftJoinAndSelect('reply.user', 'replyUser')
+			.leftJoinAndSelect('renote.user', 'renoteUser');
 
-				this.queryService.generateVisibilityQuery(query, me);
-				if (me) this.queryService.generateMutedUserQuery(query, me);
-				if (me) this.queryService.generateBlockedUserQuery(query, me);
-				if (me) this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
+		this.queryService.generateVisibilityQuery(query, me);
+		if (me) this.queryService.generateMutedUserQuery(query, me);
+		if (me) this.queryService.generateBlockedUserQuery(query, me);
+		if (me) this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
-				if (ps.withFiles) {
-					query.andWhere('note.fileIds != \'{}\'');
-				}
+		if (ps.withFiles) {
+			query.andWhere('note.fileIds != \'{}\'');
+		}
 
-				let timeline = await query.limit(ps.limit).getMany();
+		if (!ps.withReplies) {
+			query.andWhere(new Brackets(qb => {
+				qb
+					.where('note.replyId IS NULL') // 返信ではない
+					.orWhere(new Brackets(qb => {
+						qb // 返信だけど投稿者自身への返信
+							.where('note.replyId IS NOT NULL')
+							.andWhere('note.replyUserId = note.userId');
+					}));
+			}));
+		}
 
-				timeline = timeline.filter(note => {
-					if (note.user?.isSilenced && me && followings && note.userId !== me.id && !followings[note.userId]) return false;
-					return true;
-				});
+		if (!ps.withBots) query.andWhere('user.isBot = FALSE');
 
-				process.nextTick(() => {
-					if (me) {
-						this.activeUsersChart.read(me);
-					}
-				});
+		const timeline = await query.limit(ps.limit).getMany();
 
-				return await this.noteEntityService.packMany(timeline, me);
+		process.nextTick(() => {
+			if (me) {
+				this.activeUsersChart.read(me);
 			}
 		});
+
+		return await this.noteEntityService.packMany(timeline, me);
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/timeline.ts b/packages/backend/src/server/api/endpoints/notes/timeline.ts
index b98d1d9f91..e58e524988 100644
--- a/packages/backend/src/server/api/endpoints/notes/timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/timeline.ts
@@ -5,7 +5,7 @@
 
 import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import type { NotesRepository } from '@/models/_.js';
+import type { MiNote, NotesRepository, ChannelFollowingsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
@@ -16,6 +16,8 @@ import { CacheService } from '@/core/CacheService.js';
 import { isUserRelated } from '@/misc/is-user-related.js';
 import { FunoutTimelineService } from '@/core/FunoutTimelineService.js';
 import { UserFollowingService } from '@/core/UserFollowingService.js';
+import { MiLocalUser } from '@/models/User.js';
+import { MetaService } from '@/core/MetaService.js';
 
 export const meta = {
 	tags: ['notes'],
@@ -57,6 +59,9 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
+		@Inject(DI.channelFollowingsRepository)
+		private channelFollowingsRepository: ChannelFollowingsRepository,
+
 		private noteEntityService: NoteEntityService,
 		private activeUsersChart: ActiveUsersChart,
 		private idService: IdService,
@@ -64,154 +69,214 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private funoutTimelineService: FunoutTimelineService,
 		private userFollowingService: UserFollowingService,
 		private queryService: QueryService,
+		private metaService: MetaService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
 			const sinceId = ps.sinceId ?? (ps.sinceDate ? this.idService.gen(ps.sinceDate!) : null);
 
-			const [
-				followings,
-				userIdsWhoMeMuting,
-				userIdsWhoMeMutingRenotes,
-				userIdsWhoBlockingMe,
-			] = await Promise.all([
-				this.cacheService.userFollowingsCache.fetch(me.id),
-				this.cacheService.userMutingsCache.fetch(me.id),
-				this.cacheService.renoteMutingsCache.fetch(me.id),
-				this.cacheService.userBlockedCache.fetch(me.id),
-			]);
-
-			let noteIds = await this.funoutTimelineService.get(ps.withFiles ? `homeTimelineWithFiles:${me.id}` : `homeTimeline:${me.id}`, untilId, sinceId);
-			noteIds = noteIds.slice(0, ps.limit);
+			const serverSettings = await this.metaService.fetch();
 
-			if (noteIds.length > 0) {
-				const query = this.notesRepository.createQueryBuilder('note')
-					.where('note.id IN (:...noteIds)', { noteIds: noteIds })
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser')
-					.leftJoinAndSelect('note.channel', 'channel');
+			if (serverSettings.enableFanoutTimeline) {
+				const [
+					followings,
+					userIdsWhoMeMuting,
+					userIdsWhoMeMutingRenotes,
+					userIdsWhoBlockingMe,
+				] = await Promise.all([
+					this.cacheService.userFollowingsCache.fetch(me.id),
+					this.cacheService.userMutingsCache.fetch(me.id),
+					this.cacheService.renoteMutingsCache.fetch(me.id),
+					this.cacheService.userBlockedCache.fetch(me.id),
+				]);
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+				let noteIds = await this.funoutTimelineService.get(ps.withFiles ? `homeTimelineWithFiles:${me.id}` : `homeTimeline:${me.id}`, untilId, sinceId);
+				noteIds = noteIds.slice(0, ps.limit);
 
-				let timeline = await query.getMany();
+				let redisTimeline: MiNote[] = [];
 
-				timeline = timeline.filter(note => {
-					if (note.userId === me.id) {
-						return true;
-					}
-					if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
-					if (isUserRelated(note, userIdsWhoMeMuting)) return false;
-					if (note.renoteId) {
-						if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
-							if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
-							if (ps.withRenotes === false) return false;
-						}
-					}
-					if (note.reply && note.reply.visibility === 'followers') {
-						if (!Object.hasOwn(followings, note.reply.userId)) return false;
-					}
-					if (note.user?.isSilenced && note.userId !== me.id && !followings[note.userId]) return false;
+				if (noteIds.length > 0) {
+					const query = this.notesRepository.createQueryBuilder('note')
+						.where('note.id IN (:...noteIds)', { noteIds: noteIds })
+						.innerJoinAndSelect('note.user', 'user')
+						.leftJoinAndSelect('note.reply', 'reply')
+						.leftJoinAndSelect('note.renote', 'renote')
+						.leftJoinAndSelect('reply.user', 'replyUser')
+						.leftJoinAndSelect('renote.user', 'renoteUser')
+						.leftJoinAndSelect('note.channel', 'channel');
 
-					return true;
-				});
+					redisTimeline = await query.getMany();
 
-				// TODO: フィルタした結果件数が足りなかった場合の対応
+					redisTimeline = redisTimeline.filter(note => {
+						if (note.userId === me.id) {
+							return true;
+						}
+						if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
+						if (isUserRelated(note, userIdsWhoMeMuting)) return false;
+						if (note.renoteId) {
+							if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
+								if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
+								if (ps.withRenotes === false) return false;
+							}
+						}
+						if (note.reply && note.reply.visibility === 'followers') {
+							if (!Object.hasOwn(followings, note.reply.userId)) return false;
+						}
+						if (!ps.withBots && note.user?.isBot) return false;
 
-				timeline.sort((a, b) => a.id > b.id ? -1 : 1);
+						return true;
+					});
 
-				process.nextTick(() => {
-					this.activeUsersChart.read(me);
-				});
+					redisTimeline.sort((a, b) => a.id > b.id ? -1 : 1);
+				}
 
-				return await this.noteEntityService.packMany(timeline, me);
-			} else { // fallback to db
-				const followees = await this.userFollowingService.getFollowees(me.id);
+				if (redisTimeline.length > 0) {
+					process.nextTick(() => {
+						this.activeUsersChart.read(me);
+					});
 
-				//#region Construct query
-				const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
-					.andWhere('note.channelId IS NULL')
-					.innerJoinAndSelect('note.user', 'user')
-					.leftJoinAndSelect('note.reply', 'reply')
-					.leftJoinAndSelect('note.renote', 'renote')
-					.leftJoinAndSelect('reply.user', 'replyUser')
-					.leftJoinAndSelect('renote.user', 'renoteUser');
+					return await this.noteEntityService.packMany(redisTimeline, me);
+				} else { // fallback to db
+					return await this.getFromDb({
+						untilId,
+						sinceId,
+						limit: ps.limit,
+						includeMyRenotes: ps.includeMyRenotes,
+						includeRenotedMyNotes: ps.includeRenotedMyNotes,
+						includeLocalRenotes: ps.includeLocalRenotes,
+						withFiles: ps.withFiles,
+						withRenotes: ps.withRenotes,
+						withBots: ps.withBots,
+					}, me);
+				}
+			} else {
+				return await this.getFromDb({
+					untilId,
+					sinceId,
+					limit: ps.limit,
+					includeMyRenotes: ps.includeMyRenotes,
+					includeRenotedMyNotes: ps.includeRenotedMyNotes,
+					includeLocalRenotes: ps.includeLocalRenotes,
+					withFiles: ps.withFiles,
+					withRenotes: ps.withRenotes,
+					withBots: ps.withBots,
+				}, me);
+			}
+		});
+	}
 
-				if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+	private async getFromDb(ps: { untilId: string | null; sinceId: string | null; limit: number; includeMyRenotes: boolean; includeRenotedMyNotes: boolean; includeLocalRenotes: boolean; withFiles: boolean; withRenotes: boolean; withBots: boolean; }, me: MiLocalUser) {
+		const followees = await this.userFollowingService.getFollowees(me.id);
+		const followingChannels = await this.channelFollowingsRepository.find({
+			where: {
+				followerId: me.id,
+			},
+		});
 
-				if (followees.length > 0) {
-					const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
+		//#region Construct query
+		const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
+			.innerJoinAndSelect('note.user', 'user')
+			.leftJoinAndSelect('note.reply', 'reply')
+			.leftJoinAndSelect('note.renote', 'renote')
+			.leftJoinAndSelect('reply.user', 'replyUser')
+			.leftJoinAndSelect('renote.user', 'renoteUser');
 
-					query.andWhere('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds });
-				} else {
-					query.andWhere('note.userId = :meId', { meId: me.id });
-				}
+		if (followees.length > 0 && followingChannels.length > 0) {
+			// ユーザー・チャンネルともにフォローあり
+			const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
+			const followingChannelIds = followingChannels.map(x => x.followeeId);
+			query.andWhere(new Brackets(qb => {
+				qb
+					.where(new Brackets(qb2 => {
+						qb2
+							.where('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds })
+							.andWhere('note.channelId IS NULL');
+					}))
+					.orWhere('note.channelId IN (:...followingChannelIds)', { followingChannelIds });
+			}));
+		} else if (followees.length > 0) {
+			// ユーザーフォローのみ（チャンネルフォローなし）
+			const meOrFolloweeIds = [me.id, ...followees.map(f => f.followeeId)];
+			query
+				.andWhere('note.channelId IS NULL')
+				.andWhere('note.userId IN (:...meOrFolloweeIds)', { meOrFolloweeIds: meOrFolloweeIds });
+		} else if (followingChannels.length > 0) {
+			// チャンネルフォローのみ（ユーザーフォローなし）
+			const followingChannelIds = followingChannels.map(x => x.followeeId);
+			query.andWhere(new Brackets(qb => {
+				qb
+					.where('note.channelId IN (:...followingChannelIds)', { followingChannelIds })
+					.orWhere('note.userId = :meId', { meId: me.id });
+			}));
+		} else {
+			// フォローなし
+			query
+				.andWhere('note.channelId IS NULL')
+				.andWhere('note.userId = :meId', { meId: me.id });
+		}
 
-				query.andWhere(new Brackets(qb => {
-					qb
-						.where('note.replyId IS NULL') // 返信ではない
-						.orWhere(new Brackets(qb => {
-							qb // 返信だけど投稿者自身への返信
-								.where('note.replyId IS NOT NULL')
-								.andWhere('note.replyUserId = note.userId');
-						}));
+		query.andWhere(new Brackets(qb => {
+			qb
+				.where('note.replyId IS NULL') // 返信ではない
+				.orWhere(new Brackets(qb => {
+					qb // 返信だけど投稿者自身への返信
+						.where('note.replyId IS NOT NULL')
+						.andWhere('note.replyUserId = note.userId');
 				}));
+		}));
 
-				this.queryService.generateVisibilityQuery(query, me);
-				this.queryService.generateMutedUserQuery(query, me);
-				this.queryService.generateBlockedUserQuery(query, me);
-				this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
+		this.queryService.generateVisibilityQuery(query, me);
+		this.queryService.generateMutedUserQuery(query, me);
+		this.queryService.generateBlockedUserQuery(query, me);
+		this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
 
-				if (ps.includeMyRenotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.userId != :meId', { meId: me.id });
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
-					}));
-				}
+		if (ps.includeMyRenotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.userId != :meId', { meId: me.id });
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				if (ps.includeRenotedMyNotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.renoteUserId != :meId', { meId: me.id });
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
-					}));
-				}
+		if (ps.includeRenotedMyNotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.renoteUserId != :meId', { meId: me.id });
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				if (ps.includeLocalRenotes === false) {
-					query.andWhere(new Brackets(qb => {
-						qb.orWhere('note.renoteUserHost IS NOT NULL');
-						qb.orWhere('note.renoteId IS NULL');
-						qb.orWhere('note.text IS NOT NULL');
-						qb.orWhere('note.fileIds != \'{}\'');
-						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
-					}));
-				}
+		if (ps.includeLocalRenotes === false) {
+			query.andWhere(new Brackets(qb => {
+				qb.orWhere('note.renoteUserHost IS NOT NULL');
+				qb.orWhere('note.renoteId IS NULL');
+				qb.orWhere('note.text IS NOT NULL');
+				qb.orWhere('note.fileIds != \'{}\'');
+				qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+			}));
+		}
 
-				if (ps.withFiles) {
-					query.andWhere('note.fileIds != \'{}\'');
-				}
-				//#endregion
+		if (ps.withFiles) {
+			query.andWhere('note.fileIds != \'{}\'');
+		}
 
-				let timeline = await query.limit(ps.limit).getMany();
+		if (ps.withRenotes === false) {
+			query.andWhere('note.renoteId IS NULL');
+		}
 
-				timeline = timeline.filter(note => {
-					if (note.user?.isSilenced && note.userId !== me.id && !followings[note.userId]) return false;
-					return true;
-				});
+		if (!ps.withBots) query.andWhere('user.isBot = FALSE');
+		//#endregion
 
-				process.nextTick(() => {
-					this.activeUsersChart.read(me);
-				});
+		const timeline = await query.limit(ps.limit).getMany();
 
-				return await this.noteEntityService.packMany(timeline, me);
-			}
+		process.nextTick(() => {
+			this.activeUsersChart.read(me);
 		});
+
+		return await this.noteEntityService.packMany(timeline, me);
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
index 2b31e6169c..9ead1410c2 100644
--- a/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
+++ b/packages/backend/src/server/api/endpoints/notes/user-list-timeline.ts
@@ -3,12 +3,9 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Brackets } from 'typeorm';
 import { Inject, Injectable } from '@nestjs/common';
-import * as Redis from 'ioredis';
-import type { NotesRepository, UserListsRepository, UserListMembershipsRepository, MiNote } from '@/models/_.js';
+import type { MiNote, NotesRepository, UserListMembershipsRepository, UserListsRepository } from '@/models/_.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
-import { QueryService } from '@/core/QueryService.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import ActiveUsersChart from '@/core/chart/charts/active-users.js';
 import { DI } from '@/di-symbols.js';
@@ -16,7 +13,9 @@ import { CacheService } from '@/core/CacheService.js';
 import { IdService } from '@/core/IdService.js';
 import { isUserRelated } from '@/misc/is-user-related.js';
 import { FunoutTimelineService } from '@/core/FunoutTimelineService.js';
+import { QueryService } from '@/core/QueryService.js';
 import { ApiError } from '../../error.js';
+import { Brackets } from 'typeorm';
 
 export const meta = {
 	tags: ['notes', 'lists'],
@@ -67,20 +66,22 @@ export const paramDef = {
 @Injectable()
 export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
 	constructor(
-		@Inject(DI.redisForTimelines)
-		private redisForTimelines: Redis.Redis,
-
 		@Inject(DI.notesRepository)
 		private notesRepository: NotesRepository,
 
 		@Inject(DI.userListsRepository)
 		private userListsRepository: UserListsRepository,
 
+		@Inject(DI.userListMembershipsRepository)
+		private userListMembershipsRepository: UserListMembershipsRepository,
+
 		private noteEntityService: NoteEntityService,
 		private activeUsersChart: ActiveUsersChart,
 		private cacheService: CacheService,
 		private idService: IdService,
 		private funoutTimelineService: FunoutTimelineService,
+		private queryService: QueryService,
+
 	) {
 		super(meta, paramDef, async (ps, me) => {
 			const untilId = ps.untilId ?? (ps.untilDate ? this.idService.gen(ps.untilDate!) : null);
@@ -108,44 +109,129 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			let noteIds = await this.funoutTimelineService.get(ps.withFiles ? `userListTimelineWithFiles:${list.id}` : `userListTimeline:${list.id}`, untilId, sinceId);
 			noteIds = noteIds.slice(0, ps.limit);
 
-			if (noteIds.length === 0) {
-				return [];
-			}
+			let redisTimeline: MiNote[] = [];
+
+			if (noteIds.length > 0) {
+				const query = this.notesRepository.createQueryBuilder('note')
+					.where('note.id IN (:...noteIds)', { noteIds: noteIds })
+					.innerJoinAndSelect('note.user', 'user')
+					.leftJoinAndSelect('note.reply', 'reply')
+					.leftJoinAndSelect('note.renote', 'renote')
+					.leftJoinAndSelect('reply.user', 'replyUser')
+					.leftJoinAndSelect('renote.user', 'renoteUser')
+					.leftJoinAndSelect('note.channel', 'channel');
 
-			const query = this.notesRepository.createQueryBuilder('note')
-				.where('note.id IN (:...noteIds)', { noteIds: noteIds })
-				.innerJoinAndSelect('note.user', 'user')
-				.leftJoinAndSelect('note.reply', 'reply')
-				.leftJoinAndSelect('note.renote', 'renote')
-				.leftJoinAndSelect('reply.user', 'replyUser')
-				.leftJoinAndSelect('renote.user', 'renoteUser')
-				.leftJoinAndSelect('note.channel', 'channel');
+				redisTimeline = await query.getMany();
 
-			let timeline = await query.getMany();
+				redisTimeline = redisTimeline.filter(note => {
+					if (note.userId === me.id) {
+						return true;
+					}
+					if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
+					if (isUserRelated(note, userIdsWhoMeMuting)) return false;
+					if (note.renoteId) {
+						if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
+							if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
+							if (ps.withRenotes === false) return false;
+						}
+					}
 
-			timeline = timeline.filter(note => {
-				if (note.userId === me.id) {
 					return true;
+				});
+
+				redisTimeline.sort((a, b) => a.id > b.id ? -1 : 1);
+			}
+
+			if (redisTimeline.length > 0) {
+				this.activeUsersChart.read(me);
+				return await this.noteEntityService.packMany(redisTimeline, me);
+			} else { // fallback to db
+				//#region Construct query
+				const query = this.queryService.makePaginationQuery(this.notesRepository.createQueryBuilder('note'), ps.sinceId, ps.untilId)
+					.innerJoin(this.userListMembershipsRepository.metadata.targetName, 'userListMemberships', 'userListMemberships.userId = note.userId')
+					.innerJoinAndSelect('note.user', 'user')
+					.leftJoinAndSelect('note.reply', 'reply')
+					.leftJoinAndSelect('note.renote', 'renote')
+					.leftJoinAndSelect('reply.user', 'replyUser')
+					.leftJoinAndSelect('renote.user', 'renoteUser')
+					.andWhere('userListMemberships.userListId = :userListId', { userListId: list.id })
+					.andWhere('note.channelId IS NULL') // チャンネルノートではない
+					.andWhere(new Brackets(qb => {
+						qb
+							.where('note.replyId IS NULL') // 返信ではない
+							.orWhere(new Brackets(qb => {
+								qb // 返信だけど投稿者自身への返信
+									.where('note.replyId IS NOT NULL')
+									.andWhere('note.replyUserId = note.userId');
+							}))
+							.orWhere(new Brackets(qb => {
+								qb // 返信だけど自分宛ての返信
+									.where('note.replyId IS NOT NULL')
+									.andWhere('note.replyUserId = :meId', { meId: me.id });
+							}))
+							.orWhere(new Brackets(qb => {
+								qb // 返信だけどwithRepliesがtrueの場合
+									.where('note.replyId IS NOT NULL')
+									.andWhere('userListMemberships.withReplies = true');
+							}));
+					}));
+
+				this.queryService.generateVisibilityQuery(query, me);
+				this.queryService.generateMutedUserQuery(query, me);
+				this.queryService.generateBlockedUserQuery(query, me);
+				this.queryService.generateMutedUserRenotesQueryForNotes(query, me);
+
+				if (ps.includeMyRenotes === false) {
+					query.andWhere(new Brackets(qb => {
+						qb.orWhere('note.userId != :meId', { meId: me.id });
+						qb.orWhere('note.renoteId IS NULL');
+						qb.orWhere('note.text IS NOT NULL');
+						qb.orWhere('note.fileIds != \'{}\'');
+						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+					}));
 				}
-				if (isUserRelated(note, userIdsWhoBlockingMe)) return false;
-				if (isUserRelated(note, userIdsWhoMeMuting)) return false;
-				if (note.renoteId) {
-					if (note.text == null && note.fileIds.length === 0 && !note.hasPoll) {
-						if (isUserRelated(note, userIdsWhoMeMutingRenotes)) return false;
-						if (ps.withRenotes === false) return false;
-					}
+
+				if (ps.includeRenotedMyNotes === false) {
+					query.andWhere(new Brackets(qb => {
+						qb.orWhere('note.renoteUserId != :meId', { meId: me.id });
+						qb.orWhere('note.renoteId IS NULL');
+						qb.orWhere('note.text IS NOT NULL');
+						qb.orWhere('note.fileIds != \'{}\'');
+						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+					}));
 				}
 
-				return true;
-			});
+				if (ps.includeLocalRenotes === false) {
+					query.andWhere(new Brackets(qb => {
+						qb.orWhere('note.renoteUserHost IS NOT NULL');
+						qb.orWhere('note.renoteId IS NULL');
+						qb.orWhere('note.text IS NOT NULL');
+						qb.orWhere('note.fileIds != \'{}\'');
+						qb.orWhere('0 < (SELECT COUNT(*) FROM poll WHERE poll."noteId" = note.id)');
+					}));
+				}
+
+				if (ps.withRenotes === false) {
+					query.andWhere(new Brackets(qb => {
+						qb.orWhere('note.renoteId IS NULL');
+						qb.orWhere(new Brackets(qb => {
+							qb.orWhere('note.text IS NOT NULL');
+							qb.orWhere('note.fileIds != \'{}\'');
+						}));
+					}));
+				}
 
-			// TODO: フィルタした結果件数が足りなかった場合の対応
+				if (ps.withFiles) {
+					query.andWhere('note.fileIds != \'{}\'');
+				}
+				//#endregion
 
-			timeline.sort((a, b) => a.id > b.id ? -1 : 1);
+				const timeline = await query.limit(ps.limit).getMany();
 
-			this.activeUsersChart.read(me);
+				this.activeUsersChart.read(me);
 
-			return await this.noteEntityService.packMany(timeline, me);
+				return await this.noteEntityService.packMany(timeline, me);
+			}
 		});
 	}
 }
diff --git a/packages/backend/src/server/api/endpoints/notifications/create.ts b/packages/backend/src/server/api/endpoints/notifications/create.ts
index 268628cf76..19bc6fa8d7 100644
--- a/packages/backend/src/server/api/endpoints/notifications/create.ts
+++ b/packages/backend/src/server/api/endpoints/notifications/create.ts
@@ -42,8 +42,8 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			this.notificationService.createNotification(user.id, 'app', {
 				appAccessTokenId: token ? token.id : null,
 				customBody: ps.body,
-				customHeader: ps.header,
-				customIcon: ps.icon,
+				customHeader: ps.header ?? token?.name,
+				customIcon: ps.icon ?? token?.iconUrl,
 			});
 		});
 	}
diff --git a/packages/backend/src/server/api/openapi/schemas.ts b/packages/backend/src/server/api/openapi/schemas.ts
index 0b9eb4fe24..1a1d973e56 100644
--- a/packages/backend/src/server/api/openapi/schemas.ts
+++ b/packages/backend/src/server/api/openapi/schemas.ts
@@ -26,7 +26,12 @@ export function convertSchemaToOpenApiSchema(schema: Schema) {
 	if (schema.allOf) res.allOf = schema.allOf.map(convertSchemaToOpenApiSchema);
 
 	if (schema.ref) {
-		res.$ref = `#/components/schemas/${schema.ref}`;
+		const $ref = `#/components/schemas/${schema.ref}`;
+		if (schema.nullable || schema.optional) {
+			res.allOf = [{ $ref }];
+		} else {
+			res.$ref = $ref;
+		}
 	}
 
 	return res;
diff --git a/packages/backend/src/server/api/stream/Connection.ts b/packages/backend/src/server/api/stream/Connection.ts
index f981e63871..2d8fec30b1 100644
--- a/packages/backend/src/server/api/stream/Connection.ts
+++ b/packages/backend/src/server/api/stream/Connection.ts
@@ -13,6 +13,7 @@ import { bindThis } from '@/decorators.js';
 import { CacheService } from '@/core/CacheService.js';
 import { MiFollowing, MiUserProfile } from '@/models/_.js';
 import type { StreamEventEmitter, GlobalEvents } from '@/core/GlobalEventService.js';
+import { ChannelFollowingService } from '@/core/ChannelFollowingService.js';
 import type { ChannelsService } from './ChannelsService.js';
 import type { EventEmitter } from 'events';
 import type Channel from './channel.js';
@@ -42,6 +43,7 @@ export default class Connection {
 		private noteReadService: NoteReadService,
 		private notificationService: NotificationService,
 		private cacheService: CacheService,
+		private channelFollowingService: ChannelFollowingService,
 
 		user: MiUser | null | undefined,
 		token: MiAccessToken | null | undefined,
@@ -56,7 +58,7 @@ export default class Connection {
 		const [userProfile, following, followingChannels, userIdsWhoMeMuting, userIdsWhoBlockingMe, userIdsWhoMeMutingRenotes] = await Promise.all([
 			this.cacheService.userProfileCache.fetch(this.user.id),
 			this.cacheService.userFollowingsCache.fetch(this.user.id),
-			this.cacheService.userFollowingChannelsCache.fetch(this.user.id),
+			this.channelFollowingService.userFollowingChannelsCache.fetch(this.user.id),
 			this.cacheService.userMutingsCache.fetch(this.user.id),
 			this.cacheService.userBlockedCache.fetch(this.user.id),
 			this.cacheService.renoteMutingsCache.fetch(this.user.id),
diff --git a/packages/backend/src/server/api/stream/channel.ts b/packages/backend/src/server/api/stream/channel.ts
index ad32d08fee..3aa0d69c0b 100644
--- a/packages/backend/src/server/api/stream/channel.ts
+++ b/packages/backend/src/server/api/stream/channel.ts
@@ -67,6 +67,8 @@ export default abstract class Channel {
 	}
 
 	public abstract init(params: any): void;
+
 	public dispose?(): void;
+
 	public onMessage?(type: string, body: any): void;
 }
diff --git a/packages/backend/src/server/api/stream/channels/channel.ts b/packages/backend/src/server/api/stream/channels/channel.ts
index e4c34e00ce..57034231a3 100644
--- a/packages/backend/src/server/api/stream/channels/channel.ts
+++ b/packages/backend/src/server/api/stream/channels/channel.ts
@@ -46,8 +46,10 @@ class ChannelChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/global-timeline.ts b/packages/backend/src/server/api/stream/channels/global-timeline.ts
index b39afbe361..fa0493854b 100644
--- a/packages/backend/src/server/api/stream/channels/global-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/global-timeline.ts
@@ -77,8 +77,10 @@ class GlobalTimelineChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/hashtag.ts b/packages/backend/src/server/api/stream/channels/hashtag.ts
index 2cfe9572d3..f30b29cfd6 100644
--- a/packages/backend/src/server/api/stream/channels/hashtag.ts
+++ b/packages/backend/src/server/api/stream/channels/hashtag.ts
@@ -51,8 +51,10 @@ class HashtagChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/home-timeline.ts b/packages/backend/src/server/api/stream/channels/home-timeline.ts
index f5216bb4f6..32bb9fd984 100644
--- a/packages/backend/src/server/api/stream/channels/home-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/home-timeline.ts
@@ -39,29 +39,35 @@ class HomeTimelineChannel extends Channel {
 
 	@bindThis
 	private async onNote(note: Packed<'Note'>) {
+		const isMe = this.user!.id === note.userId;
+
 		if (this.withFiles && (note.fileIds == null || note.fileIds.length === 0)) return;
 
 		if (note.channelId) {
 			if (!this.followingChannels.has(note.channelId)) return;
 		} else {
 			// その投稿のユーザーをフォローしていなかったら弾く
-			if ((this.user!.id !== note.userId) && !Object.hasOwn(this.following, note.userId)) return;
+			if (!isMe && !Object.hasOwn(this.following, note.userId)) return;
 		}
 
 		// Ignore notes from instances the user has muted
 		if (isInstanceMuted(note, new Set<string>(this.userProfile!.mutedInstances))) return;
 
 		if (note.visibility === 'followers') {
-			if (!Object.hasOwn(this.following, note.userId)) return;
+			if (!isMe && !Object.hasOwn(this.following, note.userId)) return;
 		} else if (note.visibility === 'specified') {
-			if (!note.visibleUserIds!.includes(this.user!.id)) return;
+			if (!isMe && !note.visibleUserIds!.includes(this.user!.id)) return;
 		}
 
-		// 関係ない返信は除外
-		if (note.reply && !this.following[note.userId]?.withReplies) {
+		if (note.reply) {
 			const reply = note.reply;
-			// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
-			if (reply.userId !== this.user!.id && note.userId !== this.user!.id && reply.userId !== note.userId) return;
+			if (this.following[note.userId]?.withReplies) {
+				// 自分のフォローしていないユーザーの visibility: followers な投稿への返信は弾く
+				if (reply.visibility === 'followers' && !Object.hasOwn(this.following, reply.userId)) return;
+			} else {
+				// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
+				if (reply.userId !== this.user!.id && !isMe && reply.userId !== note.userId) return;
+			}
 		}
 
 		if (note.user.isSilenced && !this.following[note.userId] && note.userId !== this.user!.id) return;
@@ -76,8 +82,10 @@ class HomeTimelineChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
index 1a062f393b..cf904b475a 100644
--- a/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/hybrid-timeline.ts
@@ -51,6 +51,8 @@ class HybridTimelineChannel extends Channel {
 
 	@bindThis
 	private async onNote(note: Packed<'Note'>) {
+		const isMe = this.user!.id === note.userId;
+
 		if (this.withFiles && (note.fileIds == null || note.fileIds.length === 0)) return;
 		if (!this.withBots && note.user.isBot) return;
 
@@ -59,26 +61,30 @@ class HybridTimelineChannel extends Channel {
 		// チャンネルの投稿ではなく、全体公開のローカルの投稿 または
 		// フォローしているチャンネルの投稿 の場合だけ
 		if (!(
-			(note.channelId == null && this.user!.id === note.userId) ||
+			(note.channelId == null && isMe) ||
 			(note.channelId == null && Object.hasOwn(this.following, note.userId)) ||
 			(note.channelId == null && (note.user.host == null && note.visibility === 'public')) ||
 			(note.channelId != null && this.followingChannels.has(note.channelId))
 		)) return;
 
 		if (note.visibility === 'followers') {
-			if (!Object.hasOwn(this.following, note.userId)) return;
+			if (!isMe && !Object.hasOwn(this.following, note.userId)) return;
 		} else if (note.visibility === 'specified') {
-			if (!note.visibleUserIds!.includes(this.user!.id)) return;
+			if (!isMe && !note.visibleUserIds!.includes(this.user!.id)) return;
 		}
 
 		// Ignore notes from instances the user has muted
 		if (isInstanceMuted(note, new Set<string>(this.userProfile!.mutedInstances))) return;
 
-		// 関係ない返信は除外
-		if (note.reply && !this.following[note.userId]?.withReplies && !this.withReplies) {
+		if (note.reply) {
 			const reply = note.reply;
-			// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
-			if (reply.userId !== this.user!.id && note.userId !== this.user!.id && reply.userId !== note.userId) return;
+			if ((this.following[note.userId]?.withReplies ?? false) || this.withReplies) {
+				// 自分のフォローしていないユーザーの visibility: followers な投稿への返信は弾く
+				if (reply.visibility === 'followers' && !Object.hasOwn(this.following, reply.userId)) return;
+			} else {
+				// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
+				if (reply.userId !== this.user!.id && !isMe && reply.userId !== note.userId) return;
+			}
 		}
 
 		if (note.user.isSilenced && !this.following[note.userId] && note.userId !== this.user!.id) return;
@@ -93,8 +99,11 @@ class HybridTimelineChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				console.log(note.renote.reactionAndUserPairCache);
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/local-timeline.ts b/packages/backend/src/server/api/stream/channels/local-timeline.ts
index 738dbd80fc..388f4dc361 100644
--- a/packages/backend/src/server/api/stream/channels/local-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/local-timeline.ts
@@ -76,8 +76,10 @@ class LocalTimelineChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/server/api/stream/channels/user-list.ts b/packages/backend/src/server/api/stream/channels/user-list.ts
index b73cedaa8b..4b6628df6f 100644
--- a/packages/backend/src/server/api/stream/channels/user-list.ts
+++ b/packages/backend/src/server/api/stream/channels/user-list.ts
@@ -78,21 +78,27 @@ class UserListChannel extends Channel {
 
 	@bindThis
 	private async onNote(note: Packed<'Note'>) {
+		const isMe = this.user!.id === note.userId;
+
 		if (this.withFiles && (note.fileIds == null || note.fileIds.length === 0)) return;
 
 		if (!Object.hasOwn(this.membershipsMap, note.userId)) return;
 
 		if (note.visibility === 'followers') {
-			if (!Object.hasOwn(this.following, note.userId)) return;
+			if (!isMe && !Object.hasOwn(this.following, note.userId)) return;
 		} else if (note.visibility === 'specified') {
 			if (!note.visibleUserIds!.includes(this.user!.id)) return;
 		}
 
-		// 関係ない返信は除外
-		if (note.reply && !this.membershipsMap[note.userId]?.withReplies) {
+		if (note.reply) {
 			const reply = note.reply;
-			// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
-			if (reply.userId !== this.user!.id && note.userId !== this.user!.id && reply.userId !== note.userId) return;
+			if (this.membershipsMap[note.userId]?.withReplies) {
+				// 自分のフォローしていないユーザーの visibility: followers な投稿への返信は弾く
+				if (reply.visibility === 'followers' && !Object.hasOwn(this.following, reply.userId)) return;
+			} else {
+				// 「チャンネル接続主への返信」でもなければ、「チャンネル接続主が行った返信」でもなければ、「投稿者の投稿者自身への返信」でもない場合
+				if (reply.userId !== this.user!.id && !isMe && reply.userId !== note.userId) return;
+			}
 		}
 
 		// 流れてきたNoteがミュートしているユーザーが関わるものだったら無視する
@@ -103,8 +109,10 @@ class UserListChannel extends Channel {
 		if (note.renote && !note.text && isUserRelated(note, this.userIdsWhoMeMutingRenotes)) return;
 
 		if (this.user && note.renoteId && !note.text) {
-			const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renoteId, this.user.id);
-			note.renote!.myReaction = myRenoteReaction;
+			if (note.renote && Object.keys(note.renote.reactions).length > 0) {
+				const myRenoteReaction = await this.noteEntityService.populateMyReaction(note.renote, this.user.id);
+				note.renote.myReaction = myRenoteReaction;
+			}
 		}
 
 		this.connection.cacheNote(note);
diff --git a/packages/backend/src/types.ts b/packages/backend/src/types.ts
index dfc6bcba9c..979c053224 100644
--- a/packages/backend/src/types.ts
+++ b/packages/backend/src/types.ts
@@ -61,6 +61,9 @@ export const moderationLogTypes = [
 	'createAd',
 	'updateAd',
 	'deleteAd',
+	'createAvatarDecoration',
+	'updateAvatarDecoration',
+	'deleteAvatarDecoration',
 ] as const;
 
 export type ModerationLogPayloads = {
@@ -227,6 +230,19 @@ export type ModerationLogPayloads = {
 		adId: string;
 		ad: any;
 	};
+	createAvatarDecoration: {
+		avatarDecorationId: string;
+		avatarDecoration: any;
+	};
+	updateAvatarDecoration: {
+		avatarDecorationId: string;
+		before: any;
+		after: any;
+	};
+	deleteAvatarDecoration: {
+		avatarDecorationId: string;
+		avatarDecoration: any;
+	};
 };
 
 export type Serialized<T> = {