diff --git a/locales/index.d.ts b/locales/index.d.ts
index 9f348cdd87..17bfcce8e9 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -12868,6 +12868,10 @@ export interface Locale extends ILocale {
      * The configuration property 'checkActivityPubGetSignature' has been deprecated and replaced with the new Authorized Fetch setting. Please remove it from your configuration file.
      */
     "authorizedFetchLegacyWarning": string;
+    /**
+     * Deleted
+     */
+    "deleted": string;
 }
 declare const locales: {
     [lang: string]: Locale;
diff --git a/packages/frontend/src/components/MkPagination.vue b/packages/frontend/src/components/MkPagination.vue
index ee128e5991..ee56533526 100644
--- a/packages/frontend/src/components/MkPagination.vue
+++ b/packages/frontend/src/components/MkPagination.vue
@@ -43,11 +43,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts">
-import { computed, isRef, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onDeactivated, ref, useTemplateRef, watch, type Ref } from 'vue';
+import { computed, isRef, nextTick, onActivated, onBeforeMount, onBeforeUnmount, onDeactivated, ref, useTemplateRef, watch } from 'vue';
 import * as Misskey from 'misskey-js';
 import { useDocumentVisibility } from '@@/js/use-document-visibility.js';
 import { onScrollTop, isHeadVisible, getBodyScrollHeight, getScrollContainer, onScrollBottom, scrollToBottom, scrollInContainer, isTailVisible } from '@@/js/scroll.js';
-import type { ComputedRef } from 'vue';
+import type { ComputedRef, Ref } from 'vue';
 import type { MisskeyEntity } from '@/types/date-separated-list.js';
 import { misskeyApi } from '@/utility/misskey-api.js';
 import { i18n } from '@/i18n.js';
@@ -197,10 +197,10 @@ watch(error, (n, o) => {
 	emit('status', n);
 });
 
-function getActualValue<T>(input: T|Ref<T>|undefined, defaultValue: T) : T {
-		if (!input) return defaultValue;
-		if (isRef(input)) return input.value;
-		return input;
+function getActualValue<T>(input: T | Ref<T> | undefined, defaultValue: T) : T {
+	if (!input) return defaultValue;
+	if (isRef(input)) return input.value;
+	return input;
 }
 
 async function init(): Promise<void> {
diff --git a/packages/frontend/src/components/MkUrlWarningDialog.vue b/packages/frontend/src/components/MkUrlWarningDialog.vue
index f9a979f33e..01ecba1817 100644
--- a/packages/frontend/src/components/MkUrlWarningDialog.vue
+++ b/packages/frontend/src/components/MkUrlWarningDialog.vue
@@ -55,6 +55,7 @@ const domain = computed(() => new URL(props.url).hostname);
 // overload function を使いたいので lint エラーを無視する
 function done(canceled: true): void;
 function done(canceled: false, result: Result): void; // eslint-disable-line no-redeclare
+
 function done(canceled: boolean, result?: Result): void { // eslint-disable-line no-redeclare
 	emit('done', { canceled, result } as { canceled: true } | { canceled: false, result: Result });
 	modal.value?.close();
diff --git a/packages/frontend/src/components/SkFlashPlayer.vue b/packages/frontend/src/components/SkFlashPlayer.vue
index 0cdc7bf104..f7fb42fc9f 100644
--- a/packages/frontend/src/components/SkFlashPlayer.vue
+++ b/packages/frontend/src/components/SkFlashPlayer.vue
@@ -60,7 +60,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { ref, onDeactivated } from 'vue';
 import * as Misskey from 'misskey-js';
 import type { PublicAPI, PublicAPILike } from '@/types/ruffle/setup';
-import type { PlayerElement } from '@/types/ruffle/player.js';
+import type { PlayerElement } from '@/types/ruffle/player';
 import MkEllipsis from '@/components/global/MkEllipsis.vue';
 import MkLoading from '@/components/global/MkLoading.vue';
 import { i18n } from '@/i18n.js';
@@ -177,11 +177,11 @@ async function loadContent() {
 		loadingStatus.value = undefined;
 	} catch (error) {
 		try {
-			await fetch('https://raw.esm.sh/', {
+			await window.fetch('https://raw.esm.sh/', {
 				mode: 'cors',
 			});
 			handleError(error); // Unexpected error
-		} catch (_) {
+		} catch {
 			// Must be CSP because esm.sh should be online if `loadRuffle()` didn't fail
 			handleError(i18n.ts._flash.cspError);
 		}
diff --git a/packages/frontend/src/components/SkInstanceTicker.vue b/packages/frontend/src/components/SkInstanceTicker.vue
index 22532f7c33..d2bac6d681 100644
--- a/packages/frontend/src/components/SkInstanceTicker.vue
+++ b/packages/frontend/src/components/SkInstanceTicker.vue
@@ -11,8 +11,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, type CSSProperties } from 'vue';
 import { instanceName as localInstanceName } from '@@/js/config.js';
+import { computed } from 'vue';
+import type { CSSProperties } from 'vue';
 import { instance as localInstance } from '@/instance.js';
 import { getProxiedImageUrlNullable } from '@/utility/media-proxy.js';
 
diff --git a/packages/frontend/src/components/SkOneko.vue b/packages/frontend/src/components/SkOneko.vue
index ef7bdd74f0..f855805c70 100644
--- a/packages/frontend/src/components/SkOneko.vue
+++ b/packages/frontend/src/components/SkOneko.vue
@@ -23,7 +23,7 @@ let mousePosY = 0;
 
 let frameCount = 0;
 let idleTime = 0;
-let idleAnimation: string|null = null;
+let idleAnimation: string | null = null;
 let idleAnimationFrame = 0;
 let lastFrameTimestamp;
 
@@ -97,7 +97,8 @@ function init() {
 	nekoEl.value.style.left = `${nekoPosX - 16}px`;
 	nekoEl.value.style.top = `${nekoPosY - 16}px`;
 
-	document.addEventListener('mousemove', (event) => {
+	// TODO this causes a memory leak because it never gets unbound
+	window.document.addEventListener('mousemove', (event) => {
 		mousePosX = event.clientX;
 		mousePosY = event.clientY;
 	});
@@ -140,7 +141,6 @@ function idle() {
 	if (
 		idleTime > 10 &&
       Math.floor(Math.random() * 200) === 0 &&
-      // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
       idleAnimation == null
 	) {
 		let avalibleIdleAnimations = ['sleeping', 'scratchSelf'];
diff --git a/packages/frontend/src/pages/user/index.listenbrainz.vue b/packages/frontend/src/pages/user/index.listenbrainz.vue
index 1c9ef8dd22..939930349a 100644
--- a/packages/frontend/src/pages/user/index.listenbrainz.vue
+++ b/packages/frontend/src/pages/user/index.listenbrainz.vue
@@ -45,7 +45,7 @@ const props = withDefaults(
 const listenbrainz = { title: '', artist: '', lastlisten: '', img: '', musicbrainzurl: '', listenbrainzurl: '' };
 if (props.user.listenbrainz) {
 	const getLMData = async (title: string, artist: string) => {
-		const response = await fetch(`https://api.listenbrainz.org/1/metadata/lookup/?artist_name=${artist}&recording_name=${title}`, {
+		const response = await window.fetch(`https://api.listenbrainz.org/1/metadata/lookup/?artist_name=${artist}&recording_name=${title}`, {
 			method: 'GET',
 			headers: {
 				'Content-Type': 'application/json',
@@ -62,7 +62,7 @@ if (props.user.listenbrainz) {
 		const listenbrainzurl: string = data.recording_mbid ? `https://listenbrainz.org/player?recording_mbids=${data.recording_mbid}` : '#';
 		return [titler, artistr, img, musicbrainzurl, listenbrainzurl];
 	};
-	const response = await fetch(`https://api.listenbrainz.org/1/user/${props.user.listenbrainz}/playing-now`, {
+	const response = await window.fetch(`https://api.listenbrainz.org/1/user/${props.user.listenbrainz}/playing-now`, {
 		method: 'GET',
 		headers: {
 			'Content-Type': 'application/json',
diff --git a/packages/frontend/test/aiscript/ui.test.ts b/packages/frontend/test/aiscript/ui.test.ts
index 3102e22e81..a75ccf4a27 100644
--- a/packages/frontend/test/aiscript/ui.test.ts
+++ b/packages/frontend/test/aiscript/ui.test.ts
@@ -3,10 +3,10 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { registerAsUiLib } from '@/aiscript/ui.js';
 import { errors, Interpreter, Parser, values } from '@syuilo/aiscript';
 import { describe, expect, test } from 'vitest';
-import { type Ref, ref } from 'vue';
+import { ref } from 'vue';
+import type { Ref } from 'vue';
 import type {
 	AsUiButton,
 	AsUiButtons,
@@ -20,6 +20,7 @@ import type {
 	AsUiTextarea,
 	AsUiTextInput,
 } from '@/aiscript/ui.js';
+import { registerAsUiLib } from '@/aiscript/ui.js';
 
 type ExeResult = {
 	root: AsUiRoot;
@@ -39,8 +40,8 @@ async function exe(script: string): Promise<ExeResult> {
 		{
 			out: (value) => {
 				outputs.push(value);
-			}
-		}
+			},
+		},
 	);
 	const ast = Parser.parse(script);
 	await interpreter.exec(ast);
diff --git a/packages/frontend/test/emoji.test.ts b/packages/frontend/test/emoji.test.ts
index ffdc858b75..955513bbac 100644
--- a/packages/frontend/test/emoji.test.ts
+++ b/packages/frontend/test/emoji.test.ts
@@ -4,9 +4,10 @@
  */
 
 import { describe, test, assert, afterEach } from 'vitest';
-import { render, cleanup, type RenderResult } from '@testing-library/vue';
-import { preferState } from './init.js';
+import { render, cleanup } from '@testing-library/vue';
 import { getEmojiName } from '@@/js/emojilist.js';
+import { preferState } from './init.js';
+import type { RenderResult } from '@testing-library/vue';
 import { components } from '@/components/index.js';
 import { directives } from '@/directives/index.js';
 import MkEmoji from '@/components/global/MkEmoji.vue';
diff --git a/packages/frontend/test/home.test.ts b/packages/frontend/test/home.test.ts
index a67ea40176..ae26795ac1 100644
--- a/packages/frontend/test/home.test.ts
+++ b/packages/frontend/test/home.test.ts
@@ -4,9 +4,10 @@
  */
 
 import { afterEach, assert, describe, test } from 'vitest';
-import { cleanup, render, type RenderResult } from '@testing-library/vue';
-import './init';
 import * as Misskey from 'misskey-js';
+import { cleanup, render } from '@testing-library/vue';
+import type { RenderResult } from '@testing-library/vue';
+import './init';
 import { directives } from '@/directives/index.js';
 import { components } from '@/components/index.js';
 import XHome from '@/pages/user/home.vue';
@@ -15,7 +16,7 @@ import 'intersection-observer';
 describe('XHome', () => {
 	const renderHome = (user: Partial<Misskey.entities.UserDetailed>): RenderResult => {
 		return render(XHome, {
-			props: { user, disableNotes: true },
+			props: { user: user as Misskey.entitites.UserDetailed, disableNotes: true },
 			global: { directives, components },
 		});
 	};
@@ -41,7 +42,7 @@ describe('XHome', () => {
 
 		const anchor = home.container.querySelector<HTMLAnchorElement>('a[href^="https://example.com/"]');
 		assert.exists(anchor, 'anchor to the remote exists');
-		assert.strictEqual(anchor?.href, 'https://example.com/@user/profile');
+		assert.strictEqual(anchor.href, 'https://example.com/@user/profile');
 	});
 
 	test('The remote caution should fall back to uri if url is null', async () => {
@@ -61,6 +62,6 @@ describe('XHome', () => {
 
 		const anchor = home.container.querySelector<HTMLAnchorElement>('a[href^="https://example.com/"]');
 		assert.exists(anchor, 'anchor to the remote exists');
-		assert.strictEqual(anchor?.href, 'https://example.com/@user');
+		assert.strictEqual(anchor.href, 'https://example.com/@user');
 	});
 });
diff --git a/packages/frontend/test/note.test.ts b/packages/frontend/test/note.test.ts
index fda2d9ad7b..d971098419 100644
--- a/packages/frontend/test/note.test.ts
+++ b/packages/frontend/test/note.test.ts
@@ -4,9 +4,10 @@
  */
 
 import { describe, test, assert, afterEach } from 'vitest';
-import { render, cleanup, type RenderResult } from '@testing-library/vue';
-import './init';
 import * as Misskey from 'misskey-js';
+import { render, cleanup } from '@testing-library/vue';
+import type { RenderResult } from '@testing-library/vue';
+import './init';
 import { components } from '@/components/index.js';
 import { directives } from '@/directives/index.js';
 import MkMediaImage from '@/components/MkMediaImage.vue';
diff --git a/packages/frontend/test/url-preview.test.ts b/packages/frontend/test/url-preview.test.ts
index 943cf2ac7a..8b374e69a3 100644
--- a/packages/frontend/test/url-preview.test.ts
+++ b/packages/frontend/test/url-preview.test.ts
@@ -4,7 +4,8 @@
  */
 
 import { describe, test, assert, afterEach } from 'vitest';
-import { render, cleanup, type RenderResult } from '@testing-library/vue';
+import { render, cleanup } from '@testing-library/vue';
+import type { RenderResult } from '@testing-library/vue';
 import './init';
 import type { summaly } from '@misskey-dev/summaly';
 import { components } from '@/components/index.js';
@@ -35,7 +36,7 @@ describe('MkUrlPreview', () => {
 		});
 
 		const result = render(MkUrlPreview, {
-			props: { url: summary.url },
+			props: { url: summary.url as string },
 			global: { directives, components },
 		});
 
@@ -98,9 +99,9 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.src, 'https://example.local/player?autoplay=1&auto_play=1');
+		assert.strictEqual(iframe.src, 'https://example.local/player?autoplay=1&auto_play=1');
 		assert.strictEqual(
-			iframe?.sandbox.toString(),
+			iframe.sandbox.toString(),
 			'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-storage-access-by-user-activation allow-same-origin',
 		);
 	});
@@ -116,7 +117,7 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.allow, 'fullscreen;web-share');
+		assert.strictEqual(iframe.allow, 'fullscreen;web-share');
 	});
 
 	test('A Summaly proxy response without allow falls back to the default', async () => {
@@ -130,7 +131,7 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.allow, 'autoplay;encrypted-media;fullscreen');
+		assert.strictEqual(iframe.allow, 'autoplay;encrypted-media;fullscreen');
 	});
 
 	test('Filtering the allow list from the Summaly proxy', async () => {
@@ -144,7 +145,7 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.allow, 'autoplay;fullscreen');
+		assert.strictEqual(iframe.allow, 'autoplay;fullscreen');
 	});
 
 	test('Having a player width should keep the fixed aspect ratio', async () => {
@@ -158,7 +159,7 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.parentElement?.style.paddingTop, '50%');
+		assert.strictEqual(iframe.parentElement?.style.paddingTop, '50%');
 	});
 
 	test('Having a player width should keep the fixed height', async () => {
@@ -172,7 +173,7 @@ describe('MkUrlPreview', () => {
 			},
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.parentElement?.style.paddingTop, '200px');
+		assert.strictEqual(iframe.parentElement?.style.paddingTop, '200px');
 	});
 
 	test('Loading a tweet in iframe', async () => {
@@ -180,8 +181,8 @@ describe('MkUrlPreview', () => {
 			url: 'https://twitter.com/i/web/status/1685072521782325249',
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.getAttribute('allow'), 'fullscreen;web-share');
-		assert.strictEqual(iframe?.getAttribute('sandbox'), 'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin');
+		assert.strictEqual(iframe.getAttribute('allow'), 'fullscreen;web-share');
+		assert.strictEqual(iframe.getAttribute('sandbox'), 'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin');
 	});
 
 	test('Loading a post in iframe', async () => {
@@ -189,7 +190,7 @@ describe('MkUrlPreview', () => {
 			url: 'https://x.com/i/web/status/1685072521782325249',
 		});
 		assert.exists(iframe, 'iframe should exist');
-		assert.strictEqual(iframe?.getAttribute('allow'), 'fullscreen;web-share');
-		assert.strictEqual(iframe?.getAttribute('sandbox'), 'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin');
+		assert.strictEqual(iframe.getAttribute('allow'), 'fullscreen;web-share');
+		assert.strictEqual(iframe.getAttribute('sandbox'), 'allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin');
 	});
 });
diff --git a/sharkey-locales/en-US.yml b/sharkey-locales/en-US.yml
index 8dbf7ef811..730e96d08b 100644
--- a/sharkey-locales/en-US.yml
+++ b/sharkey-locales/en-US.yml
@@ -534,3 +534,5 @@ authorizedFetchLegacyWarning: "The configuration property 'checkActivityPubGetSi
 _followRequest:
   recieved: "Received"
   sent: "Sent"
+
+deleted: "Deleted"