diff --git a/package.json b/package.json
index 1bd418ee5a5..a2b331b2c7d 100644
--- a/package.json
+++ b/package.json
@@ -57,15 +57,14 @@
 		"esbuild": "0.27.4",
 		"execa": "9.6.1",
 		"ignore-walk": "8.0.0",
-		"js-yaml": "4.1.1",
 		"postcss": "8.5.8",
 		"tar": "7.5.13",
-		"terser": "5.46.1"
+		"terser": "5.46.1",
+		"yaml": "2.8.3"
 	},
 	"devDependencies": {
 		"@eslint/js": "9.39.4",
 		"@misskey-dev/eslint-plugin": "2.1.0",
-		"@types/js-yaml": "4.0.9",
 		"@types/node": "24.12.0",
 		"@typescript-eslint/eslint-plugin": "8.57.2",
 		"@typescript-eslint/parser": "8.57.2",
diff --git a/packages/backend/package.json b/packages/backend/package.json
index 54b06e8b4df..78e15793d0a 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -102,7 +102,6 @@
 		"async-mutex": "0.5.0",
 		"bcryptjs": "3.0.3",
 		"blurhash": "2.0.5",
-		"body-parser": "2.2.2",
 		"bullmq": "5.71.0",
 		"cacheable-lookup": "7.0.0",
 		"chalk": "5.6.2",
@@ -134,6 +133,7 @@
 		"mime-types": "3.0.2",
 		"misskey-js": "workspace:*",
 		"misskey-reversi": "workspace:*",
+		"milliparsec": "5.1.1",
 		"ms": "3.0.0-canary.202508261828",
 		"nanoid": "5.1.7",
 		"nested-property": "4.0.0",
@@ -184,7 +184,6 @@
 		"@swc/jest": "0.2.39",
 		"@types/accepts": "1.3.7",
 		"@types/archiver": "7.0.0",
-		"@types/body-parser": "1.19.6",
 		"@types/color-convert": "2.0.4",
 		"@types/content-disposition": "0.5.9",
 		"@types/fluent-ffmpeg": "2.1.28",
@@ -223,11 +222,11 @@
 		"fkill": "10.0.3",
 		"jest": "29.7.0",
 		"jest-mock": "29.7.0",
-		"js-yaml": "4.1.1",
 		"nodemon": "3.1.14",
 		"pid-port": "2.1.0",
 		"simple-oauth2": "5.1.0",
 		"supertest": "7.2.2",
-		"vite": "8.0.7"
+		"vite": "8.0.7",
+		"yaml": "2.8.3"
 	}
 }
diff --git a/packages/backend/scripts/compile_config.js b/packages/backend/scripts/compile_config.js
index e78fa3dc9f2..b36dbde9089 100644
--- a/packages/backend/scripts/compile_config.js
+++ b/packages/backend/scripts/compile_config.js
@@ -5,13 +5,13 @@
 
 /**
  * YAMLファイルをJSONファイルに変換するスクリプト
- * ビルド前に実行し、ランタイムにjs-yamlを含まないようにする
+ * ビルド前に実行し、ランタイムにyamlを含まないようにする
  */
 
 import fs from 'node:fs';
 import { resolve, dirname } from 'node:path';
 import { fileURLToPath } from 'node:url';
-import yaml from 'js-yaml';
+import * as yaml from 'yaml';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
@@ -34,7 +34,7 @@ function yamlToJson(ymlPath) {
 	console.log(`${ymlPath} → ${OUTPUT_PATH}`);
 
 	const yamlContent = fs.readFileSync(ymlPath, 'utf-8');
-	const jsonContent = yaml.load(yamlContent);
+	const jsonContent = yaml.parse(yamlContent);
 	if (!fs.existsSync(dirname(OUTPUT_PATH))) {
 		fs.mkdirSync(dirname(OUTPUT_PATH), { recursive: true });
 	}
diff --git a/packages/backend/src/server/oauth/OAuth2ProviderService.ts b/packages/backend/src/server/oauth/OAuth2ProviderService.ts
index 840c34b806e..a1feb7eebbc 100644
--- a/packages/backend/src/server/oauth/OAuth2ProviderService.ts
+++ b/packages/backend/src/server/oauth/OAuth2ProviderService.ts
@@ -12,7 +12,7 @@ import ipaddr from 'ipaddr.js';
 import oauth2orize, { type OAuth2, AuthorizationError, ValidateFunctionArity2, OAuth2Req, MiddlewareRequest } from 'oauth2orize';
 import oauth2Pkce from 'oauth2orize-pkce';
 import fastifyCors from '@fastify/cors';
-import bodyParser from 'body-parser';
+import { json as parseBodyJson, urlencoded as parseBodyUrlEncoded } from 'milliparsec';
 import fastifyExpress from '@fastify/express';
 import { verifyChallenge } from 'pkce-challenge';
 import { permissions as kinds } from 'misskey-js';
@@ -525,7 +525,7 @@ export class OAuth2ProviderService {
 		}));
 		fastify.use('/authorize', this.#server.errorHandler());
 
-		fastify.use('/decision', bodyParser.urlencoded({ extended: false }));
+		fastify.use('/decision', parseBodyUrlEncoded());
 		fastify.use('/decision', this.#server.decision((req, done) => {
 			const { body } = req as OAuth2DecisionRequest;
 			this.#logger.info(`Received the decision. Cancel: ${!!body.cancel}`);
@@ -556,8 +556,8 @@ export class OAuth2ProviderService {
 
 		await fastify.register(fastifyExpress);
 		// Clients may use JSON or urlencoded
-		fastify.use('', bodyParser.urlencoded({ extended: false }));
-		fastify.use('', bodyParser.json({ strict: true }));
+		fastify.use('', parseBodyUrlEncoded());
+		fastify.use('', parseBodyJson());
 		fastify.use('', this.#server.token());
 		fastify.use('', this.#server.errorHandler());
 	}
diff --git a/packages/frontend-embed/vite.config.ts b/packages/frontend-embed/vite.config.ts
index 7f5be591e88..9224380bfb4 100644
--- a/packages/frontend-embed/vite.config.ts
+++ b/packages/frontend-embed/vite.config.ts
@@ -1,7 +1,7 @@
 import path from 'path';
 import pluginVue from '@vitejs/plugin-vue';
 import { defineConfig, type UserConfig } from 'vite';
-import * as yaml from 'js-yaml';
+import * as yaml from 'yaml';
 import { promises as fsp } from 'fs';
 
 import locales from 'i18n';
@@ -10,7 +10,7 @@ import packageInfo from './package.json' with { type: 'json' };
 import pluginJson5 from './lib/vite-plugin-json5.js';
 import { pluginRemoveUnrefI18n } from '../frontend-builder/rollup-plugin-remove-unref-i18n';
 
-const url = process.env.NODE_ENV === 'development' ? (yaml.load(await fsp.readFile('../../.config/default.yml', 'utf-8')) as any).url : null;
+const url = process.env.NODE_ENV === 'development' ? (yaml.parse(await fsp.readFile('../../.config/default.yml', 'utf-8')) as any).url : null;
 const host = url ? (new URL(url)).hostname : undefined;
 
 const extensions = ['.ts', '.tsx', '.js', '.jsx', '.mjs', '.json', '.json5', '.svg', '.sass', '.scss', '.css', '.vue'];
diff --git a/packages/frontend/vite.config.ts b/packages/frontend/vite.config.ts
index b0617333330..5eddc093154 100644
--- a/packages/frontend/vite.config.ts
+++ b/packages/frontend/vite.config.ts
@@ -4,7 +4,7 @@ import pluginGlsl from 'vite-plugin-glsl';
 import { replacePlugin } from 'rolldown/plugins';
 import type { UserConfig } from 'vite';
 import { defineConfig } from 'vite';
-import * as yaml from 'js-yaml';
+import * as yaml from 'yaml';
 import { promises as fsp } from 'fs';
 
 import locales from 'i18n';
@@ -17,7 +17,7 @@ import pluginCreateSearchIndex from './lib/vite-plugin-create-search-index.js';
 import pluginWatchLocales from './lib/vite-plugin-watch-locales.js';
 import { pluginRemoveUnrefI18n } from '../frontend-builder/rollup-plugin-remove-unref-i18n.js';
 
-const url = process.env.NODE_ENV === 'development' ? (yaml.load(await fsp.readFile('../../.config/default.yml', 'utf-8')) as any).url : null;
+const url = process.env.NODE_ENV === 'development' ? (yaml.parse(await fsp.readFile('../../.config/default.yml', 'utf-8')) as any).url : null;
 const host = url ? (new URL(url)).hostname : undefined;
 
 const extensions = ['.ts', '.tsx', '.js', '.jsx', '.mjs', '.json', '.json5', '.svg', '.sass', '.scss', '.css', '.vue'];
diff --git a/packages/i18n/package.json b/packages/i18n/package.json
index 1b7ba3057ff..d28b212d829 100644
--- a/packages/i18n/package.json
+++ b/packages/i18n/package.json
@@ -28,7 +28,6 @@
 		"built"
 	],
 	"devDependencies": {
-		"@types/js-yaml": "4.0.9",
 		"@types/node": "24.12.0",
 		"@typescript-eslint/eslint-plugin": "8.57.2",
 		"@typescript-eslint/parser": "8.57.2",
@@ -39,6 +38,6 @@
 		"tsx": "4.21.0"
 	},
 	"dependencies": {
-		"js-yaml": "4.1.1"
+		"yaml": "2.8.3"
 	}
 }
diff --git a/packages/i18n/scripts/generateLocaleInterface.ts b/packages/i18n/scripts/generateLocaleInterface.ts
index 1c0f5c6a796..2f1b0ff023f 100644
--- a/packages/i18n/scripts/generateLocaleInterface.ts
+++ b/packages/i18n/scripts/generateLocaleInterface.ts
@@ -6,7 +6,7 @@
 import * as fs from 'node:fs';
 import { fileURLToPath } from 'node:url';
 import { dirname, resolve } from 'node:path';
-import * as yaml from 'js-yaml';
+import * as yaml from 'yaml';
 import ts from 'typescript';
 
 const __filename = fileURLToPath(import.meta.url);
@@ -62,14 +62,14 @@ function createMembers(record: LocaleRecord): ts.TypeElement[] {
 }
 
 export async function generateLocaleInterface(localesDir: string): Promise<void> {
-	const locale = yaml.load(fs.readFileSync(`${localesDir}/ja-JP.yml`, 'utf-8').toString()) as LocaleRecord;
+	const locale = yaml.parse(fs.readFileSync(`${localesDir}/ja-JP.yml`, 'utf-8').toString()) as LocaleRecord;
 	const members = createMembers(locale);
 
 	const elements: ts.Statement[] = [
 		ts.factory.createImportDeclaration(
 			undefined,
 			ts.factory.createImportClause(
-				false,
+				undefined,
 				undefined,
 				ts.factory.createNamedImports([
 					ts.factory.createImportSpecifier(
diff --git a/packages/i18n/src/index.ts b/packages/i18n/src/index.ts
index 21d215159fe..42cd933bd60 100644
--- a/packages/i18n/src/index.ts
+++ b/packages/i18n/src/index.ts
@@ -8,7 +8,7 @@
  */
 
 import * as fs from 'node:fs';
-import * as yaml from 'js-yaml';
+import * as yaml from 'yaml';
 import { languages, primaries } from './const.js';
 import type { Locale } from './autogen/locale.js';
 import type { ILocale, ParameterizedString } from './types.js';
@@ -62,7 +62,7 @@ function build(): Record<Language, Locale> {
 	// https://github.com/misskey-dev/misskey/pull/14057#issuecomment-2192833785
 	const metaUrl = import.meta.url;
 	const locales = languages.reduce<Locales>((a, lang) => {
-		a[lang] = (yaml.load(clean(fs.readFileSync(new URL(`./locales/${lang}.yml`, metaUrl), 'utf-8'))) ?? {}) as ILocale;
+		a[lang] = (yaml.parse(clean(fs.readFileSync(new URL(`./locales/${lang}.yml`, metaUrl), 'utf-8'))) ?? {}) as ILocale;
 		return a;
 	}, {} as Locales);
 
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9deeceefece..924a75cd150 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -25,9 +25,6 @@ importers:
       ignore-walk:
         specifier: 8.0.0
         version: 8.0.0
-      js-yaml:
-        specifier: 4.1.1
-        version: 4.1.1
       postcss:
         specifier: 8.5.8
         version: 8.5.8
@@ -37,6 +34,9 @@ importers:
       terser:
         specifier: 5.46.1
         version: 5.46.1
+      yaml:
+        specifier: 2.8.3
+        version: 2.8.3
     devDependencies:
       '@eslint/js':
         specifier: 9.39.4
@@ -44,9 +44,6 @@ importers:
       '@misskey-dev/eslint-plugin':
         specifier: 2.1.0
         version: 2.1.0(@eslint/compat@1.4.0(eslint@9.39.4))(@stylistic/eslint-plugin@5.5.0(eslint@9.39.4))(@typescript-eslint/eslint-plugin@8.57.2(@typescript-eslint/parser@8.57.2(eslint@9.39.4)(typescript@5.9.3))(eslint@9.39.4)(typescript@5.9.3))(@typescript-eslint/parser@8.57.2(eslint@9.39.4)(typescript@5.9.3))(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4)(typescript@5.9.3))(eslint@9.39.4))(eslint@9.39.4)(globals@17.4.0)
-      '@types/js-yaml':
-        specifier: 4.0.9
-        version: 4.0.9
       '@types/node':
         specifier: 24.12.0
         version: 24.12.0
@@ -183,9 +180,6 @@ importers:
       blurhash:
         specifier: 2.0.5
         version: 2.0.5
-      body-parser:
-        specifier: 2.2.2
-        version: 2.2.2
       bullmq:
         specifier: 5.71.0
         version: 5.71.0
@@ -270,6 +264,9 @@ importers:
       mfm-js:
         specifier: 0.25.0
         version: 0.25.0
+      milliparsec:
+        specifier: 5.1.1
+        version: 5.1.1
       mime-types:
         specifier: 3.0.2
         version: 3.0.2
@@ -424,9 +421,6 @@ importers:
       '@types/archiver':
         specifier: 7.0.0
         version: 7.0.0
-      '@types/body-parser':
-        specifier: 1.19.6
-        version: 1.19.6
       '@types/color-convert':
         specifier: 2.0.4
         version: 2.0.4
@@ -541,9 +535,6 @@ importers:
       jest-mock:
         specifier: 29.7.0
         version: 29.7.0
-      js-yaml:
-        specifier: 4.1.1
-        version: 4.1.1
       nodemon:
         specifier: 3.1.14
         version: 3.1.14
@@ -558,7 +549,10 @@ importers:
         version: 7.2.2
       vite:
         specifier: 8.0.7
-        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
+      yaml:
+        specifier: 2.8.3
+        version: 2.8.3
     optionalDependencies:
       '@swc/core-android-arm64':
         specifier: 1.3.11
@@ -679,7 +673,7 @@ importers:
         version: 16.0.0
       '@vitejs/plugin-vue':
         specifier: 6.0.5
-        version: 6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))(vue@3.5.30(typescript@5.9.3))
+        version: 6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vue@3.5.30(typescript@5.9.3))
       aiscript-vscode:
         specifier: github:aiscript-dev/aiscript-vscode#v0.1.16
         version: https://codeload.github.com/aiscript-dev/aiscript-vscode/tar.gz/1dc7f60cda78d030dadfc518a33c472202b2ef67
@@ -857,7 +851,7 @@ importers:
         version: 10.3.3(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)
       '@storybook/react-vite':
         specifier: 10.3.3
-        version: 10.3.3(esbuild@0.27.4)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+        version: 10.3.3(esbuild@0.27.4)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       '@storybook/test':
         specifier: 8.6.18
         version: 8.6.18(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))
@@ -872,7 +866,7 @@ importers:
         version: 10.3.3(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vue@3.5.30(typescript@5.9.3))
       '@storybook/vue3-vite':
         specifier: 10.3.3
-        version: 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))(vue@3.5.30(typescript@5.9.3))
+        version: 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vue@3.5.30(typescript@5.9.3))
       '@tabler/icons-webfont':
         specifier: 3.35.0
         version: 3.35.0
@@ -923,7 +917,7 @@ importers:
         version: 8.57.2(eslint@9.39.4)(typescript@5.9.3)
       '@vitest/coverage-v8':
         specifier: 4.1.2
-        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))
+        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))
       '@vue/compiler-core':
         specifier: 3.5.30
         version: 3.5.30
@@ -1001,19 +995,19 @@ importers:
         version: 4.21.0
       vite:
         specifier: 8.0.7
-        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
       vite-plugin-glsl:
         specifier: 1.5.6
-        version: 1.5.6(@rollup/pluginutils@5.3.0(rollup@4.60.0))(esbuild@0.27.4)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+        version: 1.5.6(@rollup/pluginutils@5.3.0(rollup@4.60.0))(esbuild@0.27.4)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       vite-plugin-turbosnap:
         specifier: 1.0.3
         version: 1.0.3
       vitest:
         specifier: 4.1.2
-        version: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+        version: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       vitest-fetch-mock:
         specifier: 0.4.5
-        version: 0.4.5(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))
+        version: 0.4.5(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))
       vue-component-type-helpers:
         specifier: 3.2.6
         version: 3.2.6
@@ -1040,7 +1034,7 @@ importers:
         version: 1.0.0-rc.13
       vite:
         specifier: 8.0.7
-        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
     devDependencies:
       '@types/estree':
         specifier: 1.0.8
@@ -1074,7 +1068,7 @@ importers:
         version: 16.0.0
       '@vitejs/plugin-vue':
         specifier: 6.0.5
-        version: 6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))(vue@3.5.30(typescript@5.9.3))
+        version: 6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vue@3.5.30(typescript@5.9.3))
       buraha:
         specifier: 0.0.1
         version: 0.0.1
@@ -1153,7 +1147,7 @@ importers:
         version: 8.57.2(eslint@9.39.4)(typescript@5.9.3)
       '@vitest/coverage-v8':
         specifier: 4.1.2
-        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))
+        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))
       '@vue/runtime-core':
         specifier: 3.5.30
         version: 3.5.30
@@ -1198,7 +1192,7 @@ importers:
         version: 4.21.0
       vite:
         specifier: 8.0.7
-        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+        version: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
       vite-plugin-turbosnap:
         specifier: 1.0.3
         version: 1.0.3
@@ -1248,13 +1242,10 @@ importers:
 
   packages/i18n:
     dependencies:
-      js-yaml:
-        specifier: 4.1.1
-        version: 4.1.1
+      yaml:
+        specifier: 2.8.3
+        version: 2.8.3
     devDependencies:
-      '@types/js-yaml':
-        specifier: 4.0.9
-        version: 4.0.9
       '@types/node':
         specifier: 24.12.0
         version: 24.12.0
@@ -1371,7 +1362,7 @@ importers:
         version: 8.57.2(eslint@9.39.4)(typescript@5.9.3)
       '@vitest/coverage-v8':
         specifier: 4.1.2
-        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))
+        version: 4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))
       esbuild:
         specifier: 0.27.4
         version: 0.27.4
@@ -1389,10 +1380,10 @@ importers:
         version: 0.33.0
       vitest:
         specifier: 4.1.2
-        version: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+        version: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       vitest-websocket-mock:
         specifier: 0.5.0
-        version: 0.5.0(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))
+        version: 0.5.0(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))
 
   packages/misskey-js/generator:
     devDependencies:
@@ -4661,9 +4652,6 @@ packages:
   '@types/jest@29.5.14':
     resolution: {integrity: sha512-ZN+4sdnLUbo8EVvVc2ao0GFW6oVrQRPn4K2lglySj7APvSrgzxHiNNK99us4WDMi57xxA2yggblIAMNhXOotLQ==}
 
-  '@types/js-yaml@4.0.9':
-    resolution: {integrity: sha512-k4MGaQl5TGo/iipqb2UDG2UwjXziSWkh0uysQelTlJpX1qGlpUZYm8PnO4DxG1qBomtJUdYJ6qR6xdIah10JLg==}
-
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
@@ -8383,6 +8371,10 @@ packages:
     resolution: {integrity: sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==}
     engines: {node: '>=8.6'}
 
+  milliparsec@5.1.1:
+    resolution: {integrity: sha512-jkEDaSWZp4/Q3vprqdqukBqUEyNNqC1pwTjZ5cp9YkaR1wv5fvTCd8VFsecbw7i8DNBGjzhJ83MDoPZlcTaPQg==}
+    engines: {node: '>=18.13 || >=19.20 || >=20'}
+
   mime-db@1.52.0:
     resolution: {integrity: sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==}
     engines: {node: '>= 0.6'}
@@ -9034,10 +9026,6 @@ packages:
     resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
     engines: {node: '>=8.6'}
 
-  picomatch@4.0.3:
-    resolution: {integrity: sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==}
-    engines: {node: '>=12'}
-
   picomatch@4.0.4:
     resolution: {integrity: sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==}
     engines: {node: '>=12'}
@@ -11375,6 +11363,11 @@ packages:
   yaml-ast-parser@0.0.43:
     resolution: {integrity: sha512-2PTINUwsRqSd+s8XxKaJWQlUuEMHJQyEuh2edBbW8KNJz0SJPwUSD2zRWqezFEdN7IzAgeuYHFUCF7o8zRdZ0A==}
 
+  yaml@2.8.3:
+    resolution: {integrity: sha512-AvbaCLOO2Otw/lW5bmh9d/WEdcDFdQp2Z2ZUH3pX9U2ihyUY0nvLv7J6TrWowklRGPYbB/IuIMfYgxaCPg5Bpg==}
+    engines: {node: '>= 14.6'}
+    hasBin: true
+
   yargs-parser@18.1.3:
     resolution: {integrity: sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==}
     engines: {node: '>=6'}
@@ -12918,11 +12911,11 @@ snapshots:
       '@types/yargs': 17.0.34
       chalk: 4.1.2
 
-  '@joshwooding/vite-plugin-react-docgen-typescript@0.6.4(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))':
+  '@joshwooding/vite-plugin-react-docgen-typescript@0.6.4(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))':
     dependencies:
       glob: 13.0.1
       react-docgen-typescript: 2.4.0(typescript@5.9.3)
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
     optionalDependencies:
       typescript: 5.9.3
 
@@ -13856,7 +13849,7 @@ snapshots:
     dependencies:
       '@types/estree': 1.0.8
       estree-walker: 2.0.2
-      picomatch: 4.0.3
+      picomatch: 4.0.4
     optionalDependencies:
       rollup: 4.60.0
 
@@ -14674,12 +14667,12 @@ snapshots:
       react: 19.2.4
       react-dom: 19.2.4(react@19.2.4)
 
-  '@storybook/builder-vite@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))':
+  '@storybook/builder-vite@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))':
     dependencies:
-      '@storybook/csf-plugin': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      '@storybook/csf-plugin': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
       ts-dedent: 2.2.0
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
     transitivePeerDependencies:
       - esbuild
       - rollup
@@ -14693,14 +14686,14 @@ snapshots:
     dependencies:
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
 
-  '@storybook/csf-plugin@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))':
+  '@storybook/csf-plugin@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))':
     dependencies:
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
       unplugin: 2.3.10
     optionalDependencies:
       esbuild: 0.27.4
       rollup: 4.60.0
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
 
   '@storybook/csf-plugin@8.6.18(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))':
     dependencies:
@@ -14745,11 +14738,11 @@ snapshots:
       react-dom: 19.2.4(react@19.2.4)
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
 
-  '@storybook/react-vite@10.3.3(esbuild@0.27.4)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))':
+  '@storybook/react-vite@10.3.3(esbuild@0.27.4)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))':
     dependencies:
-      '@joshwooding/vite-plugin-react-docgen-typescript': 0.6.4(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      '@joshwooding/vite-plugin-react-docgen-typescript': 0.6.4(typescript@5.9.3)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       '@rollup/pluginutils': 5.3.0(rollup@4.60.0)
-      '@storybook/builder-vite': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      '@storybook/builder-vite': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       '@storybook/react': 10.3.3(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(typescript@5.9.3)
       empathic: 2.0.0
       magic-string: 0.30.21
@@ -14759,7 +14752,7 @@ snapshots:
       resolve: 1.22.11
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
       tsconfig-paths: 4.2.0
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
     transitivePeerDependencies:
       - esbuild
       - rollup
@@ -14807,14 +14800,14 @@ snapshots:
     dependencies:
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
 
-  '@storybook/vue3-vite@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))(vue@3.5.30(typescript@5.9.3))':
+  '@storybook/vue3-vite@10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vue@3.5.30(typescript@5.9.3))':
     dependencies:
-      '@storybook/builder-vite': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      '@storybook/builder-vite': 10.3.3(esbuild@0.27.4)(rollup@4.60.0)(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       '@storybook/vue3': 10.3.3(storybook@10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6))(vue@3.5.30(typescript@5.9.3))
       magic-string: 0.30.21
       storybook: 10.3.3(@testing-library/dom@10.4.0)(bufferutil@4.1.0)(prettier@3.8.1)(react-dom@19.2.4(react@19.2.4))(react@19.2.4)(utf-8-validate@6.0.6)
       typescript: 5.9.3
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
       vue-component-meta: 2.2.12(typescript@5.9.3)
       vue-docgen-api: 4.79.2(vue@3.5.30(typescript@5.9.3))
     transitivePeerDependencies:
@@ -15262,8 +15255,6 @@ snapshots:
       expect: 29.7.0
       pretty-format: 29.7.0
 
-  '@types/js-yaml@4.0.9': {}
-
   '@types/json-schema@7.0.15': {}
 
   '@types/json5@0.0.29': {}
@@ -15592,13 +15583,13 @@ snapshots:
 
   '@ungap/structured-clone@1.3.0': {}
 
-  '@vitejs/plugin-vue@6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))(vue@3.5.30(typescript@5.9.3))':
+  '@vitejs/plugin-vue@6.0.5(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))(vue@3.5.30(typescript@5.9.3))':
     dependencies:
       '@rolldown/pluginutils': 1.0.0-rc.2
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
       vue: 3.5.30(typescript@5.9.3)
 
-  '@vitest/coverage-v8@4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)))':
+  '@vitest/coverage-v8@4.1.2(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)))':
     dependencies:
       '@bcoe/v8-coverage': 1.0.2
       '@vitest/utils': 4.1.2
@@ -15610,7 +15601,7 @@ snapshots:
       obug: 2.1.1
       std-env: 4.0.0
       tinyrainbow: 3.1.0
-      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
 
   '@vitest/expect@2.0.5':
     dependencies:
@@ -15636,14 +15627,14 @@ snapshots:
       chai: 6.2.2
       tinyrainbow: 3.1.0
 
-  '@vitest/mocker@4.1.2(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))':
+  '@vitest/mocker@4.1.2(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))':
     dependencies:
       '@vitest/spy': 4.1.2
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
       msw: 2.12.14(@types/node@24.12.0)(typescript@5.9.3)
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
 
   '@vitest/pretty-format@2.0.5':
     dependencies:
@@ -15788,7 +15779,7 @@ snapshots:
       alien-signals: 3.1.2
       muggle-string: 0.4.1
       path-browserify: 1.0.1
-      picomatch: 4.0.3
+      picomatch: 4.0.4
 
   '@vue/reactivity@3.5.30':
     dependencies:
@@ -19937,6 +19928,8 @@ snapshots:
       braces: 3.0.3
       picomatch: 2.3.1
 
+  milliparsec@5.1.1: {}
+
   mime-db@1.52.0: {}
 
   mime-db@1.54.0: {}
@@ -20579,8 +20572,6 @@ snapshots:
 
   picomatch@2.3.1: {}
 
-  picomatch@4.0.3: {}
-
   picomatch@4.0.4: {}
 
   pid-port@2.1.0:
@@ -22565,7 +22556,7 @@ snapshots:
     dependencies:
       '@jridgewell/remapping': 2.3.5
       acorn: 8.16.0
-      picomatch: 4.0.3
+      picomatch: 4.0.4
       webpack-virtual-modules: 0.6.2
 
   until-async@3.0.2: {}
@@ -22644,16 +22635,16 @@ snapshots:
       '@types/unist': 3.0.3
       vfile-message: 4.0.3
 
-  vite-plugin-glsl@1.5.6(@rollup/pluginutils@5.3.0(rollup@4.60.0))(esbuild@0.27.4)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)):
+  vite-plugin-glsl@1.5.6(@rollup/pluginutils@5.3.0(rollup@4.60.0))(esbuild@0.27.4)(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)):
     dependencies:
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
     optionalDependencies:
       '@rollup/pluginutils': 5.3.0(rollup@4.60.0)
       esbuild: 0.27.4
 
   vite-plugin-turbosnap@1.0.3: {}
 
-  vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0):
+  vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3):
     dependencies:
       lightningcss: 1.32.0
       picomatch: 4.0.4
@@ -22668,21 +22659,22 @@ snapshots:
       sass-embedded: 1.98.0
       terser: 5.46.1
       tsx: 4.21.0
+      yaml: 2.8.3
 
-  vitest-fetch-mock@0.4.5(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))):
+  vitest-fetch-mock@0.4.5(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))):
     dependencies:
-      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
 
-  vitest-websocket-mock@0.5.0(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))):
+  vitest-websocket-mock@0.5.0(vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))):
     dependencies:
       '@vitest/utils': 3.2.4
       mock-socket: 9.3.1
-      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      vitest: 4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
 
-  vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)):
+  vitest@4.1.2(@opentelemetry/api@1.9.0)(@types/node@24.12.0)(happy-dom@20.8.8(bufferutil@4.1.0)(utf-8-validate@6.0.6))(jsdom@27.2.0(bufferutil@4.1.0)(utf-8-validate@6.0.6))(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)):
     dependencies:
       '@vitest/expect': 4.1.2
-      '@vitest/mocker': 4.1.2(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0))
+      '@vitest/mocker': 4.1.2(msw@2.12.14(@types/node@24.12.0)(typescript@5.9.3))(vite@8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3))
       '@vitest/pretty-format': 4.1.2
       '@vitest/runner': 4.1.2
       '@vitest/snapshot': 4.1.2
@@ -22693,13 +22685,13 @@ snapshots:
       magic-string: 0.30.21
       obug: 2.1.1
       pathe: 2.0.3
-      picomatch: 4.0.3
+      picomatch: 4.0.4
       std-env: 4.0.0
       tinybench: 2.9.0
       tinyexec: 1.0.2
       tinyglobby: 0.2.15
       tinyrainbow: 3.1.0
-      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)
+      vite: 8.0.7(@types/node@24.12.0)(esbuild@0.27.4)(sass-embedded@1.98.0)(sass@1.98.0)(terser@5.46.1)(tsx@4.21.0)(yaml@2.8.3)
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@opentelemetry/api': 1.9.0
@@ -23016,6 +23008,8 @@ snapshots:
 
   yaml-ast-parser@0.0.43: {}
 
+  yaml@2.8.3: {}
+
   yargs-parser@18.1.3:
     dependencies:
       camelcase: 5.3.1
diff --git a/scripts/build-assets.mjs b/scripts/build-assets.mjs
index 1086d5a25a6..4be368bb34d 100644
--- a/scripts/build-assets.mjs
+++ b/scripts/build-assets.mjs
@@ -6,7 +6,7 @@
 import * as fs from 'node:fs/promises';
 import * as path from 'node:path';
 import { fileURLToPath } from 'node:url';
-import * as yaml from 'js-yaml';
+import * as yaml from 'yaml';
 import { buildTarball } from './tarball.mjs';
 
 const configDir = fileURLToPath(new URL('../.config', import.meta.url));
@@ -17,7 +17,7 @@ const configPath = process.env.MISSKEY_CONFIG_YML
 		: path.resolve(configDir, 'default.yml');
 
 async function loadConfig() {
-	return fs.readFile(configPath, 'utf-8').then(data => yaml.load(data)).catch(() => null);
+	return fs.readFile(configPath, 'utf-8').then(data => yaml.parse(data)).catch(() => null);
 }
 
 async function copyFrontendFonts() {