diff --git a/gulpfile.js b/gulpfile.js
index 7220d8421a..4ddb624da7 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -49,8 +49,6 @@ gulp.task("build:backend:script", () => {
 	return gulp
 		.src([
 			"./packages/backend/src/server/web/boot.js",
-			"./packages/backend/src/server/web/bios.js",
-			"./packages/backend/src/server/web/cli.js",
 		])
 		.pipe(replace("LANGS", JSON.stringify(Object.keys(locales))))
 		.pipe(
@@ -65,8 +63,6 @@ gulp.task("build:backend:style", () => {
 	return gulp
 		.src([
 			"./packages/backend/src/server/web/style.css",
-			"./packages/backend/src/server/web/bios.css",
-			"./packages/backend/src/server/web/cli.css",
 		])
 		.pipe(
 			cssnano({
diff --git a/packages/backend/src/server/web/bios.js b/packages/backend/src/server/web/bios.js
deleted file mode 100644
index e715a01068..0000000000
--- a/packages/backend/src/server/web/bios.js
+++ /dev/null
@@ -1,89 +0,0 @@
-"use strict";
-
-window.onload = async () => {
-	const account = JSON.parse(localStorage.getItem("account"));
-	const i = account.token;
-
-	const api = (endpoint, data = {}) => {
-		const promise = new Promise((resolve, reject) => {
-			// Append a credential
-			if (i) data.i = i;
-
-			// Send request
-			fetch(endpoint.indexOf("://") > -1 ? endpoint : `/api/${endpoint}`, {
-				method: "POST",
-				body: JSON.stringify(data),
-				credentials: "omit",
-				cache: "no-cache",
-			})
-				.then(async (res) => {
-					const body = res.status === 204 ? null : await res.json();
-
-					if (res.status === 200) {
-						resolve(body);
-					} else if (res.status === 204) {
-						resolve();
-					} else {
-						reject(body.error);
-					}
-				})
-				.catch(reject);
-		});
-
-		return promise;
-	};
-
-	const content = document.getElementById("content");
-
-	document.getElementById("ls").addEventListener("click", () => {
-		content.innerHTML = "";
-
-		const lsEditor = document.createElement("div");
-		lsEditor.id = "lsEditor";
-
-		const adder = document.createElement("div");
-		adder.classList.add("adder");
-		const addKeyInput = document.createElement("input");
-		const addValueTextarea = document.createElement("textarea");
-		const addButton = document.createElement("button");
-		addButton.textContent = "Add";
-		addButton.addEventListener("click", () => {
-			localStorage.setItem(addKeyInput.value, addValueTextarea.value);
-			location.reload();
-		});
-
-		adder.appendChild(addKeyInput);
-		adder.appendChild(addValueTextarea);
-		adder.appendChild(addButton);
-		lsEditor.appendChild(adder);
-
-		for (let i = 0; i < localStorage.length; i++) {
-			const k = localStorage.key(i);
-			const record = document.createElement("div");
-			record.classList.add("record");
-			const header = document.createElement("header");
-			header.textContent = k;
-			const textarea = document.createElement("textarea");
-			textarea.textContent = localStorage.getItem(k);
-			const saveButton = document.createElement("button");
-			saveButton.textContent = "Save";
-			saveButton.addEventListener("click", () => {
-				localStorage.setItem(k, textarea.value);
-				location.reload();
-			});
-			const removeButton = document.createElement("button");
-			removeButton.textContent = "Remove";
-			removeButton.addEventListener("click", () => {
-				localStorage.removeItem(k);
-				location.reload();
-			});
-			record.appendChild(header);
-			record.appendChild(textarea);
-			record.appendChild(saveButton);
-			record.appendChild(removeButton);
-			lsEditor.appendChild(record);
-		}
-
-		content.appendChild(lsEditor);
-	});
-};
diff --git a/packages/backend/src/server/web/boot.js b/packages/backend/src/server/web/boot.js
index d3b7c3b823..48f3f1652c 100644
--- a/packages/backend/src/server/web/boot.js
+++ b/packages/backend/src/server/web/boot.js
@@ -144,25 +144,13 @@
 			</button>
 			<p class="dont-worry">Don't worry, it's (probably) not your fault.</p>
 			<p>Please make sure your browser is up-to-date and any AdBlockers are off.</p>
-			<p>If the problem persists after refreshing, please contact your instance's administrator.<br>You may also try the following options:</p>
+			<p>If the problem persists after refreshing, please contact your instance's administrator.<br>You may also try:</p>
 			<a href="/flush">
 				<button class="button-small">
 					<span class="button-label-small">Clear preferences and cache</span>
 				</button>
 			</a>
 			<br>
-			<a href="/cli">
-				<button class="button-small">
-					<span class="button-label-small">Start the simple client</span>
-				</button>
-			</a>
-			<br>
-			<a href="/bios">
-				<button class="button-small">
-					<span class="button-label-small">Start the repair tool</span>
-				</button>
-			</a>
-			<br>
 			<div id="errors"></div>
 			`;
 			errorsElement = document.getElementById("errors");
diff --git a/packages/backend/src/server/web/cli.css b/packages/backend/src/server/web/cli.css
deleted file mode 100644
index 460a7b7f31..0000000000
--- a/packages/backend/src/server/web/cli.css
+++ /dev/null
@@ -1,92 +0,0 @@
-html {
-	background: #191724;
-}
-main {
-	background: #1f1d2e;
-	border-radius: 10px;
-}
-#tl > div {
-	border: 1px solid #908caa;
-  border-radius: 10px;
-  margin: 10px;
-  padding: 10px;
-	width: fit-content;
-}
-#tl > div > header {
-	font-weight: 700;
-	display: inline-flex;
-}
-
-img {
-	border-radius: 10px;
-	margin-right: 10px;
-}
-
-#form {
-	text-align: center;
-}
-
-#calckey_app {
-	display: none !important;
-}
-
-body,
-html {
-	font-family: BIZ UDGothic, Roboto, HelveticaNeue, Arial, sans-serif;
-	background-color: #191724;
-	color: #e0def4;
-	justify-content: center;
-	margin: auto;
-	padding: 10px;
-}
-button {
-	border-radius:999px;
-	padding:0 40px;
-	margin-top: 1rem;
-	border:none;
-	cursor:pointer;
-	margin-bottom:12px;
-	background:linear-gradient(90deg,#9ccfd8,#31748f);
-	line-height:50px;
-	color:#191724;
-	font-weight:700;
-	font-size:20px;
- }
-button:hover {
-	background: rgb(156, 207, 216);
-}
-a {
-	color: rgb(156, 207, 216);
-	text-decoration: none;
-}
-p,
-li {
-	font-size: 16px;
-}
-
-h1 {
-	font-size: 32px;
-}
-code {
-	font-family: Fira, FiraCode, monospace;
-}
-#text {
-	background-color: #444;
-	border: solid #aaa;
-	border-radius: 10px;
-	color: #e0def4;
-	margin-top: 3rem;
-	width: 20rem;
-	height: 5rem;
-	padding: 0.5rem;
-}
-
-#text:focus {
-	border: solid #eee;
-}
-
-@media screen and (max-width: 500px) {
-  #text {
-    width: 80%
-  }
-}
diff --git a/packages/backend/src/server/web/cli.js b/packages/backend/src/server/web/cli.js
deleted file mode 100644
index 85a61a2446..0000000000
--- a/packages/backend/src/server/web/cli.js
+++ /dev/null
@@ -1,72 +0,0 @@
-"use strict";
-
-window.onload = async () => {
-	const account = JSON.parse(localStorage.getItem("account"));
-	const i = account.token;
-
-	const api = (endpoint, data = {}) => {
-		const promise = new Promise((resolve, reject) => {
-			// Append a credential
-			if (i) data.i = i;
-
-			// Send request
-			fetch(endpoint.indexOf("://") > -1 ? endpoint : `/api/${endpoint}`, {
-				method: "POST",
-				body: JSON.stringify(data),
-				credentials: "omit",
-				cache: "no-cache",
-			})
-				.then(async (res) => {
-					const body = res.status === 204 ? null : await res.json();
-
-					if (res.status === 200) {
-						resolve(body);
-					} else if (res.status === 204) {
-						resolve();
-					} else {
-						reject(body.error);
-					}
-				})
-				.catch(reject);
-		});
-
-		return promise;
-	};
-
-	document.getElementById("submit").addEventListener("click", () => {
-		api("notes/create", {
-			text: document.getElementById("text").value,
-		}).then(() => {
-			location.reload();
-		});
-	});
-
-	api("notes/timeline").then((notes) => {
-		const tl = document.getElementById("tl");
-		for (const note of notes) {
-			const el = document.createElement("div");
-			const header = document.createElement("header");
-			const name = document.createElement("p");
-			const avatar = document.createElement("img");
-			name.textContent = `${note.user.name} @${note.user.username}`;
-			avatar.src = note.user.avatarUrl;
-			avatar.style = "height: 40px";
-			const text = document.createElement("div");
-			text.textContent = `${note.text}`;
-			el.appendChild(header);
-			header.appendChild(avatar);
-			header.appendChild(name);
-			if (note.text) {
-				el.appendChild(text);
-			}
-			if (note.files) {
-				for (const file of note.files) {
-					const img = document.createElement("img");
-					img.src = file.properties.thumbnailUrl;
-					el.appendChild(img);
-				}
-			}
-			tl.appendChild(el);
-		}
-	});
-};
diff --git a/packages/backend/src/server/web/index.ts b/packages/backend/src/server/web/index.ts
index 55a125fac3..9c405d5ba3 100644
--- a/packages/backend/src/server/web/index.ts
+++ b/packages/backend/src/server/web/index.ts
@@ -2,39 +2,30 @@
  * Web Client Server
  */
 
-import { dirname } from "node:path";
-import { fileURLToPath } from "node:url";
-import { readFileSync } from "node:fs";
+import {dirname} from "node:path";
+import {fileURLToPath} from "node:url";
+import {readFileSync} from "node:fs";
 import Koa from "koa";
 import Router from "@koa/router";
 import send from "koa-send";
 import favicon from "koa-favicon";
 import views from "koa-views";
-import sharp from "sharp";
-import { createBullBoard } from "@bull-board/api";
-import { BullAdapter } from "@bull-board/api/bullAdapter.js";
-import { KoaAdapter } from "@bull-board/koa";
+import {createBullBoard} from "@bull-board/api";
+import {BullAdapter} from "@bull-board/api/bullAdapter.js";
+import {KoaAdapter} from "@bull-board/koa";
 
-import { In, IsNull } from "typeorm";
-import { fetchMeta, metaToPugArgs } from "@/misc/fetch-meta.js";
+import {In, IsNull} from "typeorm";
+import {fetchMeta, metaToPugArgs} from "@/misc/fetch-meta.js";
 import config from "@/config/index.js";
-import {
-	Users,
-	Notes,
-	UserProfiles,
-	Pages,
-	Channels,
-	Clips,
-	GalleryPosts,
-} from "@/models/index.js";
+import {Channels, Clips, GalleryPosts, Notes, Pages, UserProfiles, Users,} from "@/models/index.js";
 import * as Acct from "@/misc/acct.js";
-import { getNoteSummary } from "@/misc/get-note-summary.js";
-import { queues } from "@/queue/queues.js";
-import { genOpenapiSpec } from "../api/openapi/gen-spec.js";
-import { urlPreviewHandler } from "./url-preview.js";
-import { manifestHandler } from "./manifest.js";
+import {getNoteSummary} from "@/misc/get-note-summary.js";
+import {queues} from "@/queue/queues.js";
+import {genOpenapiSpec} from "../api/openapi/gen-spec.js";
+import {urlPreviewHandler} from "./url-preview.js";
+import {manifestHandler} from "./manifest.js";
 import packFeed from "./feed.js";
-import { MINUTE, DAY } from "@/const.js";
+import {DAY, MINUTE} from "@/const.js";
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
@@ -160,60 +151,6 @@ router.get("/twemoji/(.*)", async (ctx) => {
 	});
 });
 
-router.get("/twemoji-badge/(.*)", async (ctx) => {
-	const path = ctx.path.replace("/twemoji-badge/", "");
-
-	if (!path.match(/^[0-9a-f-]+\.png$/)) {
-		ctx.status = 404;
-		return;
-	}
-
-	const mask = await sharp(
-		`${_dirname}/../../../node_modules/@discordapp/twemoji/dist/svg/${path.replace(
-			".png",
-			"",
-		)}.svg`,
-		{ density: 1000 },
-	)
-		.resize(488, 488)
-		.greyscale()
-		.normalise()
-		.linear(1.75, -(128 * 1.75) + 128) // 1.75x contrast
-		.flatten({ background: "#000" })
-		.extend({
-			top: 12,
-			bottom: 12,
-			left: 12,
-			right: 12,
-			background: "#000",
-		})
-		.toColorspace("b-w")
-		.png()
-		.toBuffer();
-
-	const buffer = await sharp({
-		create: {
-			width: 512,
-			height: 512,
-			channels: 4,
-			background: { r: 0, g: 0, b: 0, alpha: 0 },
-		},
-	})
-		.pipelineColorspace("b-w")
-		.boolean(mask, "eor")
-		.resize(96, 96)
-		.png()
-		.toBuffer();
-
-	ctx.set(
-		"Content-Security-Policy",
-		"default-src 'none'; style-src 'unsafe-inline'",
-	);
-	ctx.set("Cache-Control", "max-age=2592000");
-	ctx.set("Content-Type", "image/png");
-	ctx.body = buffer;
-});
-
 // ServiceWorker
 router.get("/sw.js", async (ctx) => {
 	await send(ctx as any, "/sw.js", {
@@ -573,18 +510,6 @@ router.get("/channels/:channel", async (ctx, next) => {
 });
 //#endregion
 
-router.get("/bios", async (ctx) => {
-	await ctx.render("bios", {
-		version: config.version,
-	});
-});
-
-router.get("/cli", async (ctx) => {
-	await ctx.render("cli", {
-		version: config.version,
-	});
-});
-
 const override = (source: string, target: string, depth = 0) =>
 	[
 		undefined,
diff --git a/packages/backend/src/server/web/views/bios.pug b/packages/backend/src/server/web/views/bios.pug
deleted file mode 100644
index 408ebb27b1..0000000000
--- a/packages/backend/src/server/web/views/bios.pug
+++ /dev/null
@@ -1,21 +0,0 @@
-doctype html
-
-html
-
-	head
-		meta(charset='utf-8')
-		meta(name='application-name' content='Calckey')
-		meta(name='viewport' content='width=device-width, initial-scale=1.0')
-		title Calckey Repair Tool
-		style
-			include ../bios.css
-		script
-			include ../bios.js
-
-	body
-		header
-			h1 Calckey Repair Tool v#{version}
-		main
-			div.tabs
-				button#ls Edit local storage
-			div#content
diff --git a/packages/backend/src/server/web/views/cli.pug b/packages/backend/src/server/web/views/cli.pug
deleted file mode 100644
index 2abd5ae950..0000000000
--- a/packages/backend/src/server/web/views/cli.pug
+++ /dev/null
@@ -1,23 +0,0 @@
-doctype html
-
-html
-
-	head
-		meta(charset='utf-8')
-		meta(name='application-name' content='Calckey')
-		meta(name='viewport' content='width=device-width, initial-scale=1.0')
-		title Calckey Cli
-		style
-			include ../cli.css
-		script
-			include ../cli.js
-
-	body
-		header
-			h1 Calckey Simple Client v#{version}
-		main
-			div#form
-				textarea#text
-				br
-				button#submit Post
-			div#tl
diff --git a/packages/sw/src/scripts/create-notification.ts b/packages/sw/src/scripts/create-notification.ts
index aa761651a3..5aaf9087dc 100644
--- a/packages/sw/src/scripts/create-notification.ts
+++ b/packages/sw/src/scripts/create-notification.ts
@@ -3,13 +3,12 @@
  */
 declare let self: ServiceWorkerGlobalScope;
 
-import { swLang } from "@/scripts/lang";
-import { cli } from "@/scripts/operations";
-import { pushNotificationDataMap } from "@/types";
+import {swLang} from "@/scripts/lang";
+import {cli} from "@/scripts/operations";
+import {pushNotificationDataMap} from "@/types";
 import getUserName from "@/scripts/get-user-name";
-import { I18n } from "@/scripts/i18n";
-import { getAccountFromId } from "@/scripts/get-account-from-id";
-import { char2fileName } from "@/scripts/twemoji-base";
+import {I18n} from "@/scripts/i18n";
+import {getAccountFromId} from "@/scripts/get-account-from-id";
 import * as url from "@/scripts/url";
 
 const iconUrl = (name: string) =>
@@ -185,9 +184,6 @@ async function composeNotification<K extends keyof pushNotificationDataMap>(
 								})}`;
 							}
 						}
-					} else {
-						// Unicode絵文字の場合
-						badge = `/twemoji-badge/${char2fileName(reaction)}.png`;
 					}
 
 					if (
diff --git a/packages/sw/src/scripts/twemoji-base.ts b/packages/sw/src/scripts/twemoji-base.ts
deleted file mode 100644
index 0e45a527e2..0000000000
--- a/packages/sw/src/scripts/twemoji-base.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-export const twemojiSvgBase = "/twemoji";
-
-export function char2fileName(char: string): string {
-	let codes = Array.from(char).map((x) => x.codePointAt(0)?.toString(16));
-	if (!codes.includes("200d")) codes = codes.filter((x) => x !== "fe0f");
-	codes = codes.filter((x) => x?.length);
-	return codes.join("-");
-}
-
-export function char2filePath(char: string): string {
-	return `${twemojiSvgBase}/${char2fileName(char)}.svg`;
-}