diff --git a/README.md b/README.md
index 659e0a0..6d1d20d 100644
--- a/README.md
+++ b/README.md
@@ -24,13 +24,13 @@ App Design: [Freeform](https://www.icloud.com/freeform/026AxB798cViZ9jJ2DkNsXUCQ
 ## Stack:
 
 - Postgres
-- Passport.js
 - Tailwind
 - Nuxt
 - Animate.css
 - GSAP
-- Zeabur
 - Minio S3
-- Nuxt i18N
+- Nuxt i18n
 - BunJS
 - Groq
+- Clerk
+- Custom Infra
\ No newline at end of file
diff --git a/app.vue b/app.vue
index 12c1703..08434bb 100644
--- a/app.vue
+++ b/app.vue
@@ -1,5 +1,4 @@
 <script setup lang="ts">
-import "bootstrap-icons/font/bootstrap-icons.css";
 import "animate.css";
 import "@fontsource/fira-sans";
 import "@fontsource-variable/noto-sans-tc";
diff --git a/i18n/locales/de.json b/i18n/locales/de.json
deleted file mode 100644
index baafd17..0000000
--- a/i18n/locales/de.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "dailybriefing": "",
-  "Welcome": ""
-}
diff --git a/i18n/locales/en.json b/i18n/locales/en.json
index f67194b..e6f92f5 100644
--- a/i18n/locales/en.json
+++ b/i18n/locales/en.json
@@ -1,4 +1,5 @@
 {
+  "localeflag": "🇺🇸",
   "core": {
     "sitename": "BlindSpec"
   },
diff --git a/i18n/locales/zh-tw.json b/i18n/locales/zh-tw.json
index 78c71e5..7d5850b 100644
--- a/i18n/locales/zh-tw.json
+++ b/i18n/locales/zh-tw.json
@@ -1,4 +1,5 @@
 {
+  "localeflag": "🇹🇼",
   "core": {
     "sitename": "新聞盲點平台"
   },
diff --git a/pages/app/index.vue b/pages/app/index.vue
index f2a1f9a..98b7477 100644
--- a/pages/app/index.vue
+++ b/pages/app/index.vue
@@ -4,22 +4,26 @@ definePageMeta({
 });
 import { gsap } from "gsap";
 import { TextPlugin } from "gsap/TextPlugin";
+import { createApp } from "vue";
 gsap.registerPlugin(TextPlugin);
 
 // Import Windows
 import SignIn from "~/components/app/windows/login.vue";
 
 // Icons
-import { ComputerDesktopIcon, UserIcon } from "@heroicons/vue/24/outline";
+import { ComputerDesktopIcon, UserIcon, LanguageIcon, ChevronRightIcon} from "@heroicons/vue/24/outline";
 
 // i18n
 const { t, locale, locales } = useI18n();
+const switchLocalePath = useSwitchLocalePath();
 const localePath = useLocalePath();
 // Router
 const router = useRouter();
 // values
 const popMessage = ref(null);
 const menuOpen = ref(false);
+const langMenuOpen = ref(false);
+const lang = ref(locale.value);
 // Date
 const currentDate = ref(
   new Date().toLocaleDateString("zh-TW", {
@@ -48,12 +52,15 @@ onMounted(() => {
 
 // functions
 const showLogin = () => {
+  const desktopEl = document.getElementById('desktop');
+  if (!desktopEl) return;
+  
   const loginWindow = document.createElement("div");
-  loginWindow.className = "login-window";
-  document.body.appendChild(loginWindow);
+  loginWindow.className = "login-window absolute top-1/2 left-1/2 transform -translate-x-1/2 -translate-y-1/2";
+  desktopEl.appendChild(loginWindow);
   const app = createApp(SignIn);
-  app.component("SignIn", SignIn);
   app.mount(loginWindow);
+  
   setTimeout(() => {
     gsap.fromTo(
       loginWindow,
@@ -61,44 +68,43 @@ const showLogin = () => {
       { opacity: 1, scale: 1, duration: 0.5 },
     );
   }, 100);
+  
   setTimeout(() => {
     gsap.to(loginWindow, {
       opacity: 0,
       scale: 0.5,
       duration: 0.5,
       onComplete: () => {
-        document.body.removeChild(loginWindow);
+        desktopEl.removeChild(loginWindow);
       },
     });
   }, 5000);
 }
-// menu
+const openWindow = (windowName?: string) => {
+  console.log(windowName);
+}
+// menus
 const menuItems = [
-  { name: "Hot News", action: () => router.push(localePath("/app/hotnews")) },
-  { name: "News", action: () => router.push(localePath("/app/news")) },
-  { name: "Sources", action: () => router.push(localePath("/sources")) },
-  { type: "separator" },
-  { name: 'About This Website', action: () => console.log('About') },
-  { name: 'Settings', action: () => router.push('/settings') },
-  { type: 'separator' },
-  { name: 'Leave', action: () => router.push(localePath('/')) },
+  { name: "Hot News", windowName: "hotnews"} ,
+  { name: "News", windowName: "news"},
+  { name: "Sources", windowName: "sources"},
+  { name: 'About This Website', },
+  { name: 'Settings', windowName: "settings"},
+  { name: 'Leave', windowName: "leave"},
 ]
 const toggleMenu = () => {
   menuOpen.value = !menuOpen.value
 }
-onMounted(() => {
-  document.addEventListener('click', (e) => {
-    if (!(e.target as HTMLElement).closest('.menu-container')) {
-      menuOpen.value = false
-    }
-  })
-})
+// Lang Menu
+const toggleLangMenu = () => {
+  langMenuOpen.value = !langMenuOpen.value
+}
 </script>
 <template>
   <div
     class="absolute inset-x-0 flex flex-row px-2 py-1 bg-white dark:bg-gray-900 justify-between align-center text-center z-50"
   >
-    <div class="flex flex-row g-2 text-gray-400 dark:text-gray-500 z-100">
+    <div class="flex flex-row g-2 text-gray-400 dark:text-gray-500">
       <button @click="toggleMenu" class="w-8 h-8 text-gray-400 dark:text-gray-500 hover:text-blue-500 transition-all duration-100 flex flex-row">
         <ComputerDesktopIcon/>
       </button>
@@ -107,8 +113,16 @@ onMounted(() => {
     <div class="text-gray-400">{{ currentDate }}</div>
   </div>
   <div class="w-full h-[2.5em]"></div>
+  <div class="m-2 p-2 bg-gray-800 shadow-lg w-fit rounded-[10px]" v-if="menuOpen">
+    <div v-for="item in menuItems" :key="item.name" class="">
+      <button @click="openWindow(item.windowName)" class="flex flex-row items-center gap-x-2 text-gray-400 hover:text-gray-600 transition-all duration-100">
+        <span>{{ item.name }}</span>
+        <ChevronRightIcon class="w-4 h-4 justify-center align-center" />
+      </button>
+    </div>
+  </div>
   <div
-    class="flex flex-col justify-center align-center text-center absolute w-full h-screen inset-x-0 inset-y-0"
+    class="flex flex-col justify-center align-center text-center absolute w-full h-screen inset-x-0 inset-y-0 z-[-1]"
     id="desktop"
   >
 
@@ -117,9 +131,15 @@ onMounted(() => {
     class="absolute w-[calc(100% - 5px)] inset-x-0 bottom-0 mx-[1.5px] p-3 justify-between align-center flex flex-row"
   >
     <div class="">
-      Lang: <span class="text-sm">{{ locale }}</span>
+      <!--Lang-->
+      <span>Lang: </span>
+      <span class="text-lg">{{ t("localeflag") }}</span>&nbsp;
+      <button class="w-4 h-4 hover:text-blue-200 transition-all duration-100" @click="toggleLangMenu">
+        <LanguageIcon />
+      </button>
     </div>
     <div class="gap-2 flex flex-row">
+      <!--版權資訊-->
       <span class="text-sm">1.0.0</span>
       <span class="text-sm">|</span>
       <span class="text-sm">MIT License</span>
@@ -127,6 +147,7 @@ onMounted(() => {
       <span class="text-sm">{{ new Date().getFullYear() }} &copy yh</span>
     </div>
     <div class="">
+      <!--Clerk-->
       <SignedOut>
         <SignInButton>
           <button @click="showLogin" class="w-8 h-8 text-gray-400 dark:text-gray-500 flex flex-row">
diff --git a/pages/system/login.vue b/pages/system/login.vue
deleted file mode 100644
index 08b9e29..0000000
--- a/pages/system/login.vue
+++ /dev/null
@@ -1,43 +0,0 @@
-<template>
-  <div class="w-full min-h-screen flex items-center justify-center text-center">
-    <div
-      class="border border-white w-[40%] p-16 justify-center align-center text-center rounded-md backdrop-blur-sm bg-gray-900"
-    >
-      <h1 class="text-2xl">Login / Register</h1>
-      <h4 class="text-sm">via OAuth Providers</h4>
-      <div class="m-4 flex flex-col gap-2">
-        <a href="/api/auth/google">
-          <button
-            class="gap-3 px-10 justify-between align-center text-center bg-gray-500 hover:bg-gray-700 p-2 rounded-md transition-all duration-150"
-          >
-            <i class="bi bi-google"></i>&nbsp;&nbsp;<span>Google</span>
-          </button>
-        </a>
-        <a href="/api/auth/github">
-          <button
-            class="gap-3 px-10 bg-gray-500 hover:bg-gray-700 p-2 rounded-md transition-all duration-150"
-          >
-            <i class="bi bi-github"></i>&nbsp;&nbsp;<span>Github</span>
-          </button>
-        </a>
-        <a href="/api/auth/discord">
-          <button
-            class="gap-3 px-10 bg-gray-500 hover:bg-gray-700 p-2 rounded-md transition-all duration-150"
-          >
-            <i class="bi bi-discord"></i>&nbsp;&nbsp;<span>Discord</span>
-          </button>
-        </a>
-      </div>
-    </div>
-  </div>
-</template>
-<style scoped>
-@keyframes animateLoginLoad {
-  0% {
-    transform: translateY(-5%);
-  }
-  100% {
-    transform: translateY(0);
-  }
-}
-</style>