refactor(frontend): 非推奨となったReactivity Transformを使わないように (#12539)

* refactor(frontend): 非推奨となったReactivity Transformを使わないように

* refactor: 不要な括弧を除去

* fix: 不要なアノテーションを除去

* fix: Refの配列をrefしている部分の対応

* refactor: 不要な括弧を除去

* fix: lint

* refactor: Ref、ShallowRef、ComputedRefの変数の宣言をletからconstに置換

* fix: type error

* chore: drop reactivity transform from eslint configuration

* refactor: remove unnecessary import

* fix: 対応漏れ

152 files changed, 1899 insertions, 1889 deletions

diff --git a/packages/frontend/src/pages/_error_.vue b/packages/frontend/src/pages/_error_.vue
index 4821687ac3..72a12e3c7b 100644
--- a/packages/frontend/src/pages/_error_.vue
+++ b/packages/frontend/src/pages/_error_.vue
@@ -25,7 +25,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkButton from '@/components/MkButton.vue';
 import { version } from '@/config.js';
@@ -42,29 +42,29 @@ const props = withDefaults(defineProps<{
 }>(), {
 });
 
-let loaded = $ref(false);
-let serverIsDead = $ref(false);
-let meta = $ref<Misskey.entities.MetaResponse | null>(null);
+const loaded = ref(false);
+const serverIsDead = ref(false);
+const meta = ref<Misskey.entities.MetaResponse | null>(null);
 
 os.api('meta', {
 	detail: false,
 }).then(res => {
-	loaded = true;
-	serverIsDead = false;
-	meta = res;
+	loaded.value = true;
+	serverIsDead.value = false;
+	meta.value = res;
 	miLocalStorage.setItem('v', res.version);
 }, () => {
-	loaded = true;
-	serverIsDead = true;
+	loaded.value = true;
+	serverIsDead.value = true;
 });
 
 function reload() {
 	unisonReload();
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.error,
diff --git a/packages/frontend/src/pages/about-misskey.vue b/packages/frontend/src/pages/about-misskey.vue
index b106806135..c245b9b6cb 100644
--- a/packages/frontend/src/pages/about-misskey.vue
+++ b/packages/frontend/src/pages/about-misskey.vue
@@ -123,7 +123,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { nextTick, onBeforeUnmount } from 'vue';
+import { nextTick, onBeforeUnmount, ref, shallowRef, computed } from 'vue';
 import { version } from '@/config.js';
 import FormLink from '@/components/form/link.vue';
 import FormSection from '@/components/form/section.vue';
@@ -310,18 +310,18 @@ const patrons = [
 	'SHO SEKIGUCHI',
 ];
 
-let thereIsTreasure = $ref($i && !claimedAchievements.includes('foundTreasure'));
+const thereIsTreasure = ref($i && !claimedAchievements.includes('foundTreasure'));
 
 let easterEggReady = false;
-let easterEggEmojis = $ref([]);
-let easterEggEngine = $ref(null);
-const containerEl = $shallowRef<HTMLElement>();
+const easterEggEmojis = ref([]);
+const easterEggEngine = ref(null);
+const containerEl = shallowRef<HTMLElement>();
 
 function iconLoaded() {
 	const emojis = defaultStore.state.reactions;
-	const containerWidth = containerEl.offsetWidth;
+	const containerWidth = containerEl.value.offsetWidth;
 	for (let i = 0; i < 32; i++) {
-		easterEggEmojis.push({
+		easterEggEmojis.value.push({
 			id: i.toString(),
 			top: -(128 + (Math.random() * 256)),
 			left: (Math.random() * containerWidth),
@@ -337,7 +337,7 @@ function iconLoaded() {
 function gravity() {
 	if (!easterEggReady) return;
 	easterEggReady = false;
-	easterEggEngine = physics(containerEl);
+	easterEggEngine.value = physics(containerEl.value);
 }
 
 function iLoveMisskey() {
@@ -348,19 +348,19 @@ function iLoveMisskey() {
 }
 
 function getTreasure() {
-	thereIsTreasure = false;
+	thereIsTreasure.value = false;
 	claimAchievement('foundTreasure');
 }
 
 onBeforeUnmount(() => {
-	if (easterEggEngine) {
-		easterEggEngine.stop();
+	if (easterEggEngine.value) {
+		easterEggEngine.value.stop();
 	}
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.aboutMisskey,
diff --git a/packages/frontend/src/pages/about.emojis.vue b/packages/frontend/src/pages/about.emojis.vue
index 4ae460f763..60b515be3c 100644
--- a/packages/frontend/src/pages/about.emojis.vue
+++ b/packages/frontend/src/pages/about.emojis.vue
@@ -36,7 +36,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import XEmoji from './emojis.emoji.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -47,44 +47,44 @@ import { i18n } from '@/i18n.js';
 import { $i } from '@/account.js';
 
 const customEmojiTags = getCustomEmojiTags();
-let q = $ref('');
-let searchEmojis = $ref<Misskey.entities.EmojiSimple[]>(null);
-let selectedTags = $ref(new Set());
+const q = ref('');
+const searchEmojis = ref<Misskey.entities.EmojiSimple[]>(null);
+const selectedTags = ref(new Set());
 
 function search() {
-	if ((q === '' || q == null) && selectedTags.size === 0) {
-		searchEmojis = null;
+	if ((q.value === '' || q.value == null) && selectedTags.value.size === 0) {
+		searchEmojis.value = null;
 		return;
 	}
 
-	if (selectedTags.size === 0) {
-		const queryarry = q.match(/\:([a-z0-9_]*)\:/g);
+	if (selectedTags.value.size === 0) {
+		const queryarry = q.value.match(/\:([a-z0-9_]*)\:/g);
 
 		if (queryarry) {
-			searchEmojis = customEmojis.value.filter(emoji =>
+			searchEmojis.value = customEmojis.value.filter(emoji =>
 				queryarry.includes(`:${emoji.name}:`),
 			);
 		} else {
-			searchEmojis = customEmojis.value.filter(emoji => emoji.name.includes(q) || emoji.aliases.includes(q));
+			searchEmojis.value = customEmojis.value.filter(emoji => emoji.name.includes(q.value) || emoji.aliases.includes(q.value));
 		}
 	} else {
-		searchEmojis = customEmojis.value.filter(emoji => (emoji.name.includes(q) || emoji.aliases.includes(q)) && [...selectedTags].every(t => emoji.aliases.includes(t)));
+		searchEmojis.value = customEmojis.value.filter(emoji => (emoji.name.includes(q.value) || emoji.aliases.includes(q.value)) && [...selectedTags.value].every(t => emoji.aliases.includes(t)));
 	}
 }
 
 function toggleTag(tag) {
-	if (selectedTags.has(tag)) {
-		selectedTags.delete(tag);
+	if (selectedTags.value.has(tag)) {
+		selectedTags.value.delete(tag);
 	} else {
-		selectedTags.add(tag);
+		selectedTags.value.add(tag);
 	}
 }
 
-watch($$(q), () => {
+watch(q, () => {
 	search();
 });
 
-watch($$(selectedTags), () => {
+watch(selectedTags, () => {
 	search();
 }, { deep: true });
 </script>
diff --git a/packages/frontend/src/pages/about.federation.vue b/packages/frontend/src/pages/about.federation.vue
index 47fe9c4279..e01c5f7542 100644
--- a/packages/frontend/src/pages/about.federation.vue
+++ b/packages/frontend/src/pages/about.federation.vue
@@ -51,7 +51,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import MkInput from '@/components/MkInput.vue';
 import MkSelect from '@/components/MkSelect.vue';
 import MkPagination, { Paging } from '@/components/MkPagination.vue';
@@ -59,25 +59,25 @@ import MkInstanceCardMini from '@/components/MkInstanceCardMini.vue';
 import FormSplit from '@/components/form/split.vue';
 import { i18n } from '@/i18n.js';
 
-let host = $ref('');
-let state = $ref('federating');
-let sort = $ref('+pubSub');
+const host = ref('');
+const state = ref('federating');
+const sort = ref('+pubSub');
 const pagination = {
 	endpoint: 'federation/instances' as const,
 	limit: 10,
 	displayLimit: 50,
 	offsetMode: true,
 	params: computed(() => ({
-		sort: sort,
-		host: host !== '' ? host : null,
+		sort: sort.value,
+		host: host.value !== '' ? host.value : null,
 		...(
-			state === 'federating' ? { federating: true } :
-			state === 'subscribing' ? { subscribing: true } :
-			state === 'publishing' ? { publishing: true } :
-			state === 'suspended' ? { suspended: true } :
-			state === 'blocked' ? { blocked: true } :
-			state === 'silenced' ? { silenced: true } :
-			state === 'notResponding' ? { notResponding: true } :
+			state.value === 'federating' ? { federating: true } :
+			state.value === 'subscribing' ? { subscribing: true } :
+			state.value === 'publishing' ? { publishing: true } :
+			state.value === 'suspended' ? { suspended: true } :
+			state.value === 'blocked' ? { blocked: true } :
+			state.value === 'silenced' ? { silenced: true } :
+			state.value === 'notResponding' ? { notResponding: true } :
 			{}),
 	})),
 } as Paging;
diff --git a/packages/frontend/src/pages/about.vue b/packages/frontend/src/pages/about.vue
index 4fa409ff4b..f463caecb6 100644
--- a/packages/frontend/src/pages/about.vue
+++ b/packages/frontend/src/pages/about.vue
@@ -102,7 +102,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import XEmojis from './about.emojis.vue';
 import XFederation from './about.federation.vue';
 import { version, host } from '@/config.js';
@@ -126,23 +126,23 @@ const props = withDefaults(defineProps<{
 	initialTab: 'overview',
 });
 
-let stats = $ref(null);
-let tab = $ref(props.initialTab);
+const stats = ref(null);
+const tab = ref(props.initialTab);
 
-watch($$(tab), () => {
-	if (tab === 'charts') {
+watch(tab, () => {
+	if (tab.value === 'charts') {
 		claimAchievement('viewInstanceChart');
 	}
 });
 
 const initStats = () => os.api('stats', {
 }).then((res) => {
-	stats = res;
+	stats.value = res;
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'overview',
 	title: i18n.ts.overview,
 }, {
diff --git a/packages/frontend/src/pages/admin-file.vue b/packages/frontend/src/pages/admin-file.vue
index 4ce0f2936c..aefff69c60 100644
--- a/packages/frontend/src/pages/admin-file.vue
+++ b/packages/frontend/src/pages/admin-file.vue
@@ -67,7 +67,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkObjectView from '@/components/MkObjectView.vue';
@@ -82,19 +82,19 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { iAmAdmin, iAmModerator } from '@/account.js';
 
-let tab = $ref('overview');
-let file: any = $ref(null);
-let info: any = $ref(null);
-let isSensitive: boolean = $ref(false);
+const tab = ref('overview');
+const file = ref<any>(null);
+const info = ref<any>(null);
+const isSensitive = ref<boolean>(false);
 
 const props = defineProps<{
 	fileId: string,
 }>();
 
 async function fetch() {
-	file = await os.api('drive/files/show', { fileId: props.fileId });
-	info = await os.api('admin/drive/show-file', { fileId: props.fileId });
-	isSensitive = file.isSensitive;
+	file.value = await os.api('drive/files/show', { fileId: props.fileId });
+	info.value = await os.api('admin/drive/show-file', { fileId: props.fileId });
+	isSensitive.value = file.value.isSensitive;
 }
 
 fetch();
@@ -102,29 +102,29 @@ fetch();
 async function del() {
 	const { canceled } = await os.confirm({
 		type: 'warning',
-		text: i18n.t('removeAreYouSure', { x: file.name }),
+		text: i18n.t('removeAreYouSure', { x: file.value.name }),
 	});
 	if (canceled) return;
 
 	os.apiWithDialog('drive/files/delete', {
-		fileId: file.id,
+		fileId: file.value.id,
 	});
 }
 
 async function toggleIsSensitive(v) {
 	await os.api('drive/files/update', { fileId: props.fileId, isSensitive: v });
-	isSensitive = v;
+	isSensitive.value = v;
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	text: i18n.ts.openInNewTab,
 	icon: 'ti ti-external-link',
 	handler: () => {
-		window.open(file.url, '_blank');
+		window.open(file.value.url, '_blank');
 	},
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'overview',
 	title: i18n.ts.overview,
 	icon: 'ti ti-info-circle',
@@ -139,7 +139,7 @@ const headerTabs = $computed(() => [{
 }]);
 
 definePageMetadata(computed(() => ({
-	title: file ? i18n.ts.file + ': ' + file.name : i18n.ts.file,
+	title: file.value ? i18n.ts.file + ': ' + file.value.name : i18n.ts.file,
 	icon: 'ti ti-file',
 })));
 </script>
diff --git a/packages/frontend/src/pages/admin-user.vue b/packages/frontend/src/pages/admin-user.vue
index 87ebedc296..fd839b4369 100644
--- a/packages/frontend/src/pages/admin-user.vue
+++ b/packages/frontend/src/pages/admin-user.vue
@@ -203,7 +203,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, defineAsyncComponent, watch } from 'vue';
+import { computed, defineAsyncComponent, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkChart from '@/components/MkChart.vue';
 import MkObjectView from '@/components/MkObjectView.vue';
@@ -234,17 +234,17 @@ const props = withDefaults(defineProps<{
 	initialTab: 'overview',
 });
 
-let tab = $ref(props.initialTab);
-let chartSrc = $ref('per-user-notes');
-let user = $ref<null | Misskey.entities.UserDetailed>();
-let init = $ref<ReturnType<typeof createFetcher>>();
-let info = $ref();
-let ips = $ref(null);
-let ap = $ref(null);
-let moderator = $ref(false);
-let silenced = $ref(false);
-let suspended = $ref(false);
-let moderationNote = $ref('');
+const tab = ref(props.initialTab);
+const chartSrc = ref('per-user-notes');
+const user = ref<null | Misskey.entities.UserDetailed>();
+const init = ref<ReturnType<typeof createFetcher>>();
+const info = ref();
+const ips = ref(null);
+const ap = ref(null);
+const moderator = ref(false);
+const silenced = ref(false);
+const suspended = ref(false);
+const moderationNote = ref('');
 const filesPagination = {
 	endpoint: 'admin/drive/files' as const,
 	limit: 10,
@@ -259,7 +259,7 @@ const announcementsPagination = {
 		userId: props.userId,
 	})),
 };
-let expandedRoles = $ref([]);
+const expandedRoles = ref([]);
 
 function createFetcher() {
 	return () => Promise.all([os.api('users/show', {
@@ -269,27 +269,27 @@ function createFetcher() {
 	}), iAmAdmin ? os.api('admin/get-user-ips', {
 		userId: props.userId,
 	}) : Promise.resolve(null)]).then(([_user, _info, _ips]) => {
-		user = _user;
-		info = _info;
-		ips = _ips;
-		moderator = info.isModerator;
-		silenced = info.isSilenced;
-		suspended = info.isSuspended;
-		moderationNote = info.moderationNote;
+		user.value = _user;
+		info.value = _info;
+		ips.value = _ips;
+		moderator.value = info.value.isModerator;
+		silenced.value = info.value.isSilenced;
+		suspended.value = info.value.isSuspended;
+		moderationNote.value = info.value.moderationNote;
 
-		watch($$(moderationNote), async () => {
-			await os.api('admin/update-user-note', { userId: user.id, text: moderationNote });
+		watch(moderationNote, async () => {
+			await os.api('admin/update-user-note', { userId: user.value.id, text: moderationNote.value });
 			await refreshUser();
 		});
 	});
 }
 
 function refreshUser() {
-	init = createFetcher();
+	init.value = createFetcher();
 }
 
 async function updateRemoteUser() {
-	await os.apiWithDialog('federation/update-remote-user', { userId: user.id });
+	await os.apiWithDialog('federation/update-remote-user', { userId: user.value.id });
 	refreshUser();
 }
 
@@ -302,7 +302,7 @@ async function resetPassword() {
 		return;
 	} else {
 		const { password } = await os.api('admin/reset-password', {
-			userId: user.id,
+			userId: user.value.id,
 		});
 		os.alert({
 			type: 'success',
@@ -317,9 +317,9 @@ async function toggleSuspend(v) {
 		text: v ? i18n.ts.suspendConfirm : i18n.ts.unsuspendConfirm,
 	});
 	if (confirm.canceled) {
-		suspended = !v;
+		suspended.value = !v;
 	} else {
-		await os.api(v ? 'admin/suspend-user' : 'admin/unsuspend-user', { userId: user.id });
+		await os.api(v ? 'admin/suspend-user' : 'admin/unsuspend-user', { userId: user.value.id });
 		await refreshUser();
 	}
 }
@@ -331,7 +331,7 @@ async function unsetUserAvatar() {
   });
   if (confirm.canceled) return;
   const process = async () => {
-    await os.api('admin/unset-user-avatar', { userId: user.id });
+    await os.api('admin/unset-user-avatar', { userId: user.value.id });
     os.success();
   };
   await process().catch(err => {
@@ -350,7 +350,7 @@ async function unsetUserBanner() {
   });
   if (confirm.canceled) return;
   const process = async () => {
-    await os.api('admin/unset-user-banner', { userId: user.id });
+    await os.api('admin/unset-user-banner', { userId: user.value.id });
     os.success();
   };
   await process().catch(err => {
@@ -369,7 +369,7 @@ async function deleteAllFiles() {
 	});
 	if (confirm.canceled) return;
 	const process = async () => {
-		await os.api('admin/delete-all-files-of-a-user', { userId: user.id });
+		await os.api('admin/delete-all-files-of-a-user', { userId: user.value.id });
 		os.success();
 	};
 	await process().catch(err => {
@@ -389,13 +389,13 @@ async function deleteAccount() {
 	if (confirm.canceled) return;
 
 	const typed = await os.inputText({
-		text: i18n.t('typeToConfirm', { x: user?.username }),
+		text: i18n.t('typeToConfirm', { x: user.value?.username }),
 	});
 	if (typed.canceled) return;
 
-	if (typed.result === user?.username) {
+	if (typed.result === user.value?.username) {
 		await os.apiWithDialog('admin/delete-account', {
-			userId: user.id,
+			userId: user.value.id,
 		});
 	} else {
 		os.alert({
@@ -438,7 +438,7 @@ async function assignRole() {
 		: period === 'oneMonth' ? Date.now() + (1000 * 60 * 60 * 24 * 30)
 		: null;
 
-	await os.apiWithDialog('admin/roles/assign', { roleId, userId: user.id, expiresAt });
+	await os.apiWithDialog('admin/roles/assign', { roleId, userId: user.value.id, expiresAt });
 	refreshUser();
 }
 
@@ -448,50 +448,50 @@ async function unassignRole(role, ev) {
 		icon: 'ti ti-x',
 		danger: true,
 		action: async () => {
-			await os.apiWithDialog('admin/roles/unassign', { roleId: role.id, userId: user.id });
+			await os.apiWithDialog('admin/roles/unassign', { roleId: role.id, userId: user.value.id });
 			refreshUser();
 		},
 	}], ev.currentTarget ?? ev.target);
 }
 
 function toggleRoleItem(role) {
-	if (expandedRoles.includes(role.id)) {
-		expandedRoles = expandedRoles.filter(x => x !== role.id);
+	if (expandedRoles.value.includes(role.id)) {
+		expandedRoles.value = expandedRoles.value.filter(x => x !== role.id);
 	} else {
-		expandedRoles.push(role.id);
+		expandedRoles.value.push(role.id);
 	}
 }
 
 function createAnnouncement() {
 	os.popup(defineAsyncComponent(() => import('@/components/MkUserAnnouncementEditDialog.vue')), {
-		user,
+		user: user.value,
 	}, {}, 'closed');
 }
 
 function editAnnouncement(announcement) {
 	os.popup(defineAsyncComponent(() => import('@/components/MkUserAnnouncementEditDialog.vue')), {
-		user,
+		user: user.value,
 		announcement,
 	}, {}, 'closed');
 }
 
 watch(() => props.userId, () => {
-	init = createFetcher();
+	init.value = createFetcher();
 }, {
 	immediate: true,
 });
 
-watch($$(user), () => {
+watch(user, () => {
 	os.api('ap/get', {
-		uri: user.uri ?? `${url}/users/${user.id}`,
+		uri: user.value.uri ?? `${url}/users/${user.value.id}`,
 	}).then(res => {
-		ap = res;
+		ap.value = res;
 	});
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'overview',
 	title: i18n.ts.overview,
 	icon: 'ti ti-info-circle',
@@ -518,7 +518,7 @@ const headerTabs = $computed(() => [{
 }]);
 
 definePageMetadata(computed(() => ({
-	title: user ? acct(user) : i18n.ts.userInfo,
+	title: user.value ? acct(user.value) : i18n.ts.userInfo,
 	icon: 'ti ti-user-exclamation',
 })));
 </script>
diff --git a/packages/frontend/src/pages/admin/_header_.vue b/packages/frontend/src/pages/admin/_header_.vue
index 503fb2af9c..03f28b5219 100644
--- a/packages/frontend/src/pages/admin/_header_.vue
+++ b/packages/frontend/src/pages/admin/_header_.vue
@@ -69,7 +69,7 @@ const metadata = injectPageMetadata();
 
 const el = shallowRef<HTMLElement>(null);
 const tabRefs = {};
-const tabHighlightEl = $shallowRef<HTMLElement | null>(null);
+const tabHighlightEl = shallowRef<HTMLElement | null>(null);
 const bg = ref(null);
 const height = ref(0);
 const hasTabs = computed(() => {
@@ -131,13 +131,13 @@ onMounted(() => {
 	watch(() => [props.tab, props.tabs], () => {
 		nextTick(() => {
 			const tabEl = tabRefs[props.tab];
-			if (tabEl && tabHighlightEl) {
+			if (tabEl && tabHighlightEl.value) {
 				// offsetWidth や offsetLeft は少数を丸めてしまうため getBoundingClientRect を使う必要がある
 				// https://developer.mozilla.org/ja/docs/Web/API/HTMLElement/offsetWidth#%E5%80%A4
 				const parentRect = tabEl.parentElement.getBoundingClientRect();
 				const rect = tabEl.getBoundingClientRect();
-				tabHighlightEl.style.width = rect.width + 'px';
-				tabHighlightEl.style.left = (rect.left - parentRect.left) + 'px';
+				tabHighlightEl.value.style.width = rect.width + 'px';
+				tabHighlightEl.value.style.left = (rect.left - parentRect.left) + 'px';
 			}
 		});
 	}, {
diff --git a/packages/frontend/src/pages/admin/abuses.vue b/packages/frontend/src/pages/admin/abuses.vue
index 875702ee7e..3613189548 100644
--- a/packages/frontend/src/pages/admin/abuses.vue
+++ b/packages/frontend/src/pages/admin/abuses.vue
@@ -52,7 +52,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, shallowRef, ref } from 'vue';
 
 import XHeader from './_header_.vue';
 import MkSelect from '@/components/MkSelect.vue';
@@ -61,31 +61,31 @@ import XAbuseReport from '@/components/MkAbuseReport.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let reports = $shallowRef<InstanceType<typeof MkPagination>>();
+const reports = shallowRef<InstanceType<typeof MkPagination>>();
 
-let state = $ref('unresolved');
-let reporterOrigin = $ref('combined');
-let targetUserOrigin = $ref('combined');
-let searchUsername = $ref('');
-let searchHost = $ref('');
+const state = ref('unresolved');
+const reporterOrigin = ref('combined');
+const targetUserOrigin = ref('combined');
+const searchUsername = ref('');
+const searchHost = ref('');
 
 const pagination = {
 	endpoint: 'admin/abuse-user-reports' as const,
 	limit: 10,
 	params: computed(() => ({
-		state,
-		reporterOrigin,
-		targetUserOrigin,
+		state: state.value,
+		reporterOrigin: reporterOrigin.value,
+		targetUserOrigin: targetUserOrigin.value,
 	})),
 };
 
 function resolved(reportId) {
-	reports.removeItem(reportId);
+	reports.value.removeItem(reportId);
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.abuseReports,
diff --git a/packages/frontend/src/pages/admin/ads.vue b/packages/frontend/src/pages/admin/ads.vue
index 1c15e32552..f0cf786556 100644
--- a/packages/frontend/src/pages/admin/ads.vue
+++ b/packages/frontend/src/pages/admin/ads.vue
@@ -85,7 +85,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -98,7 +98,7 @@ import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let ads: any[] = $ref([]);
+const ads = ref<any[]>([]);
 
 // ISO形式はTZがUTCになってしまうので、TZ分ずらして時間を初期化
 const localTime = new Date();
@@ -109,7 +109,7 @@ let publishing: boolean | null = null;
 
 os.api('admin/ad/list', { publishing: publishing }).then(adsResponse => {
 	if (adsResponse != null) {
-		ads = adsResponse.map(r => {
+		ads.value = adsResponse.map(r => {
 			const exdate = new Date(r.expiresAt);
 			const stdate = new Date(r.startsAt);
 			exdate.setMilliseconds(exdate.getMilliseconds() - localTimeDiff);
@@ -141,7 +141,7 @@ function toggleDayOfWeek(ad, index) {
 }
 
 function add() {
-	ads.unshift({
+	ads.value.unshift({
 		id: null,
 		memo: '',
 		place: 'square',
@@ -161,7 +161,7 @@ function remove(ad) {
 		text: i18n.t('removeAreYouSure', { x: ad.url }),
 	}).then(({ canceled }) => {
 		if (canceled) return;
-		ads = ads.filter(x => x !== ad);
+		ads.value = ads.value.filter(x => x !== ad);
 		if (ad.id == null) return;
 		os.apiWithDialog('admin/ad/delete', {
 			id: ad.id,
@@ -209,9 +209,9 @@ function save(ad) {
 }
 
 function more() {
-	os.api('admin/ad/list', { untilId: ads.reduce((acc, ad) => ad.id != null ? ad : acc).id, publishing: publishing }).then(adsResponse => {
+	os.api('admin/ad/list', { untilId: ads.value.reduce((acc, ad) => ad.id != null ? ad : acc).id, publishing: publishing }).then(adsResponse => {
 		if (adsResponse == null) return;
-		ads = ads.concat(adsResponse.map(r => {
+		ads.value = ads.value.concat(adsResponse.map(r => {
 			const exdate = new Date(r.expiresAt);
 			const stdate = new Date(r.startsAt);
 			exdate.setMilliseconds(exdate.getMilliseconds() - localTimeDiff);
@@ -228,7 +228,7 @@ function more() {
 function refresh() {
 	os.api('admin/ad/list', { publishing: publishing }).then(adsResponse => {
 		if (adsResponse == null) return;
-		ads = adsResponse.map(r => {
+		ads.value = adsResponse.map(r => {
 			const exdate = new Date(r.expiresAt);
 			const stdate = new Date(r.startsAt);
 			exdate.setMilliseconds(exdate.getMilliseconds() - localTimeDiff);
@@ -244,14 +244,14 @@ function refresh() {
 
 refresh();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-plus',
 	text: i18n.ts.add,
 	handler: add,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.ads,
diff --git a/packages/frontend/src/pages/admin/announcements.vue b/packages/frontend/src/pages/admin/announcements.vue
index 5785fb118c..92070dc6c6 100644
--- a/packages/frontend/src/pages/admin/announcements.vue
+++ b/packages/frontend/src/pages/admin/announcements.vue
@@ -71,7 +71,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -84,14 +84,14 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkFolder from '@/components/MkFolder.vue';
 
-let announcements: any[] = $ref([]);
+const announcements = ref<any[]>([]);
 
 os.api('admin/announcements/list').then(announcementResponse => {
-	announcements = announcementResponse;
+	announcements.value = announcementResponse;
 });
 
 function add() {
-	announcements.unshift({
+	announcements.value.unshift({
 		_id: Math.random().toString(36),
 		id: null,
 		title: 'New announcement',
@@ -111,7 +111,7 @@ function del(announcement) {
 		text: i18n.t('deleteAreYouSure', { x: announcement.title }),
 	}).then(({ canceled }) => {
 		if (canceled) return;
-		announcements = announcements.filter(x => x !== announcement);
+		announcements.value = announcements.value.filter(x => x !== announcement);
 		os.api('admin/announcements/delete', announcement);
 	});
 }
@@ -134,27 +134,27 @@ async function save(announcement) {
 }
 
 function more() {
-	os.api('admin/announcements/list', { untilId: announcements.reduce((acc, announcement) => announcement.id != null ? announcement : acc).id }).then(announcementResponse => {
-		announcements = announcements.concat(announcementResponse);
+	os.api('admin/announcements/list', { untilId: announcements.value.reduce((acc, announcement) => announcement.id != null ? announcement : acc).id }).then(announcementResponse => {
+		announcements.value = announcements.value.concat(announcementResponse);
 	});
 }
 
 function refresh() {
 	os.api('admin/announcements/list').then(announcementResponse => {
-		announcements = announcementResponse;
+		announcements.value = announcementResponse;
 	});
 }
 
 refresh();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-plus',
 	text: i18n.ts.add,
 	handler: add,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.announcements,
diff --git a/packages/frontend/src/pages/admin/bot-protection.vue b/packages/frontend/src/pages/admin/bot-protection.vue
index 7f5709feb9..367ae38b5a 100644
--- a/packages/frontend/src/pages/admin/bot-protection.vue
+++ b/packages/frontend/src/pages/admin/bot-protection.vue
@@ -64,7 +64,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent } from 'vue';
+import { defineAsyncComponent, ref } from 'vue';
 import MkRadios from '@/components/MkRadios.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -76,37 +76,37 @@ import { i18n } from '@/i18n.js';
 
 const MkCaptcha = defineAsyncComponent(() => import('@/components/MkCaptcha.vue'));
 
-let provider = $ref(null);
-let hcaptchaSiteKey: string | null = $ref(null);
-let hcaptchaSecretKey: string | null = $ref(null);
-let recaptchaSiteKey: string | null = $ref(null);
-let recaptchaSecretKey: string | null = $ref(null);
-let turnstileSiteKey: string | null = $ref(null);
-let turnstileSecretKey: string | null = $ref(null);
+const provider = ref(null);
+const hcaptchaSiteKey = ref<string | null>(null);
+const hcaptchaSecretKey = ref<string | null>(null);
+const recaptchaSiteKey = ref<string | null>(null);
+const recaptchaSecretKey = ref<string | null>(null);
+const turnstileSiteKey = ref<string | null>(null);
+const turnstileSecretKey = ref<string | null>(null);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	hcaptchaSiteKey = meta.hcaptchaSiteKey;
-	hcaptchaSecretKey = meta.hcaptchaSecretKey;
-	recaptchaSiteKey = meta.recaptchaSiteKey;
-	recaptchaSecretKey = meta.recaptchaSecretKey;
-	turnstileSiteKey = meta.turnstileSiteKey;
-	turnstileSecretKey = meta.turnstileSecretKey;
+	hcaptchaSiteKey.value = meta.hcaptchaSiteKey;
+	hcaptchaSecretKey.value = meta.hcaptchaSecretKey;
+	recaptchaSiteKey.value = meta.recaptchaSiteKey;
+	recaptchaSecretKey.value = meta.recaptchaSecretKey;
+	turnstileSiteKey.value = meta.turnstileSiteKey;
+	turnstileSecretKey.value = meta.turnstileSecretKey;
 
-	provider = meta.enableHcaptcha ? 'hcaptcha' : meta.enableRecaptcha ? 'recaptcha' : meta.enableTurnstile ? 'turnstile' : null;
+	provider.value = meta.enableHcaptcha ? 'hcaptcha' : meta.enableRecaptcha ? 'recaptcha' : meta.enableTurnstile ? 'turnstile' : null;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		enableHcaptcha: provider === 'hcaptcha',
-		hcaptchaSiteKey,
-		hcaptchaSecretKey,
-		enableRecaptcha: provider === 'recaptcha',
-		recaptchaSiteKey,
-		recaptchaSecretKey,
-		enableTurnstile: provider === 'turnstile',
-		turnstileSiteKey,
-		turnstileSecretKey,
+		enableHcaptcha: provider.value === 'hcaptcha',
+		hcaptchaSiteKey: hcaptchaSiteKey.value,
+		hcaptchaSecretKey: hcaptchaSecretKey.value,
+		enableRecaptcha: provider.value === 'recaptcha',
+		recaptchaSiteKey: recaptchaSiteKey.value,
+		recaptchaSecretKey: recaptchaSecretKey.value,
+		enableTurnstile: provider.value === 'turnstile',
+		turnstileSiteKey: turnstileSiteKey.value,
+		turnstileSecretKey: turnstileSecretKey.value,
 	}).then(() => {
 		fetchInstance();
 	});
diff --git a/packages/frontend/src/pages/admin/branding.vue b/packages/frontend/src/pages/admin/branding.vue
index c6c71d46cf..28109cfd2d 100644
--- a/packages/frontend/src/pages/admin/branding.vue
+++ b/packages/frontend/src/pages/admin/branding.vue
@@ -94,7 +94,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import JSON5 from 'json5';
 import XHeader from './_header_.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
@@ -111,55 +111,55 @@ import MkButton from '@/components/MkButton.vue';
 import MkColorInput from '@/components/MkColorInput.vue';
 import { host } from '@/config.js';
 
-let iconUrl: string | null = $ref(null);
-let app192IconUrl: string | null = $ref(null);
-let app512IconUrl: string | null = $ref(null);
-let bannerUrl: string | null = $ref(null);
-let backgroundImageUrl: string | null = $ref(null);
-let themeColor: any = $ref(null);
-let defaultLightTheme: any = $ref(null);
-let defaultDarkTheme: any = $ref(null);
-let serverErrorImageUrl: string | null = $ref(null);
-let infoImageUrl: string | null = $ref(null);
-let notFoundImageUrl: string | null = $ref(null);
-let manifestJsonOverride: string = $ref('{}');
+const iconUrl = ref<string | null>(null);
+const app192IconUrl = ref<string | null>(null);
+const app512IconUrl = ref<string | null>(null);
+const bannerUrl = ref<string | null>(null);
+const backgroundImageUrl = ref<string | null>(null);
+const themeColor = ref<any>(null);
+const defaultLightTheme = ref<any>(null);
+const defaultDarkTheme = ref<any>(null);
+const serverErrorImageUrl = ref<string | null>(null);
+const infoImageUrl = ref<string | null>(null);
+const notFoundImageUrl = ref<string | null>(null);
+const manifestJsonOverride = ref<string>('{}');
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	iconUrl = meta.iconUrl;
-	app192IconUrl = meta.app192IconUrl;
-	app512IconUrl = meta.app512IconUrl;
-	bannerUrl = meta.bannerUrl;
-	backgroundImageUrl = meta.backgroundImageUrl;
-	themeColor = meta.themeColor;
-	defaultLightTheme = meta.defaultLightTheme;
-	defaultDarkTheme = meta.defaultDarkTheme;
-	serverErrorImageUrl = meta.serverErrorImageUrl;
-	infoImageUrl = meta.infoImageUrl;
-	notFoundImageUrl = meta.notFoundImageUrl;
-	manifestJsonOverride = meta.manifestJsonOverride === '' ? '{}' : JSON.stringify(JSON.parse(meta.manifestJsonOverride), null, '\t');
+	iconUrl.value = meta.iconUrl;
+	app192IconUrl.value = meta.app192IconUrl;
+	app512IconUrl.value = meta.app512IconUrl;
+	bannerUrl.value = meta.bannerUrl;
+	backgroundImageUrl.value = meta.backgroundImageUrl;
+	themeColor.value = meta.themeColor;
+	defaultLightTheme.value = meta.defaultLightTheme;
+	defaultDarkTheme.value = meta.defaultDarkTheme;
+	serverErrorImageUrl.value = meta.serverErrorImageUrl;
+	infoImageUrl.value = meta.infoImageUrl;
+	notFoundImageUrl.value = meta.notFoundImageUrl;
+	manifestJsonOverride.value = meta.manifestJsonOverride === '' ? '{}' : JSON.stringify(JSON.parse(meta.manifestJsonOverride), null, '\t');
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		iconUrl,
-		app192IconUrl,
-		app512IconUrl,
-		bannerUrl,
-		backgroundImageUrl,
-		themeColor: themeColor === '' ? null : themeColor,
-		defaultLightTheme: defaultLightTheme === '' ? null : defaultLightTheme,
-		defaultDarkTheme: defaultDarkTheme === '' ? null : defaultDarkTheme,
-		infoImageUrl,
-		notFoundImageUrl,
-		serverErrorImageUrl,
-		manifestJsonOverride: manifestJsonOverride === '' ? '{}' : JSON.stringify(JSON5.parse(manifestJsonOverride)),
+		iconUrl: iconUrl.value,
+		app192IconUrl: app192IconUrl.value,
+		app512IconUrl: app512IconUrl.value,
+		bannerUrl: bannerUrl.value,
+		backgroundImageUrl: backgroundImageUrl.value,
+		themeColor: themeColor.value === '' ? null : themeColor.value,
+		defaultLightTheme: defaultLightTheme.value === '' ? null : defaultLightTheme.value,
+		defaultDarkTheme: defaultDarkTheme.value === '' ? null : defaultDarkTheme.value,
+		infoImageUrl: infoImageUrl.value,
+		notFoundImageUrl: notFoundImageUrl.value,
+		serverErrorImageUrl: serverErrorImageUrl.value,
+		manifestJsonOverride: manifestJsonOverride.value === '' ? '{}' : JSON.stringify(JSON5.parse(manifestJsonOverride.value)),
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.branding,
diff --git a/packages/frontend/src/pages/admin/database.vue b/packages/frontend/src/pages/admin/database.vue
index bba03deb4b..53f556bb64 100644
--- a/packages/frontend/src/pages/admin/database.vue
+++ b/packages/frontend/src/pages/admin/database.vue
@@ -18,7 +18,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { computed } from 'vue';
 import FormSuspense from '@/components/form/suspense.vue';
 import MkKeyValue from '@/components/MkKeyValue.vue';
 import * as os from '@/os.js';
@@ -29,9 +29,9 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 
 const databasePromiseFactory = () => os.api('admin/get-table-stats').then(res => Object.entries(res).sort((a, b) => b[1].size - a[1].size));
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.database,
diff --git a/packages/frontend/src/pages/admin/email-settings.vue b/packages/frontend/src/pages/admin/email-settings.vue
index 32294847bb..c93a19387c 100644
--- a/packages/frontend/src/pages/admin/email-settings.vue
+++ b/packages/frontend/src/pages/admin/email-settings.vue
@@ -64,7 +64,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -78,23 +78,23 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 
-let enableEmail: boolean = $ref(false);
-let email: any = $ref(null);
-let smtpSecure: boolean = $ref(false);
-let smtpHost: string = $ref('');
-let smtpPort: number = $ref(0);
-let smtpUser: string = $ref('');
-let smtpPass: string = $ref('');
+const enableEmail = ref<boolean>(false);
+const email = ref<any>(null);
+const smtpSecure = ref<boolean>(false);
+const smtpHost = ref<string>('');
+const smtpPort = ref<number>(0);
+const smtpUser = ref<string>('');
+const smtpPass = ref<string>('');
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	enableEmail = meta.enableEmail;
-	email = meta.email;
-	smtpSecure = meta.smtpSecure;
-	smtpHost = meta.smtpHost;
-	smtpPort = meta.smtpPort;
-	smtpUser = meta.smtpUser;
-	smtpPass = meta.smtpPass;
+	enableEmail.value = meta.enableEmail;
+	email.value = meta.email;
+	smtpSecure.value = meta.smtpSecure;
+	smtpHost.value = meta.smtpHost;
+	smtpPort.value = meta.smtpPort;
+	smtpUser.value = meta.smtpUser;
+	smtpPass.value = meta.smtpPass;
 }
 
 async function testEmail() {
@@ -115,19 +115,19 @@ async function testEmail() {
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		enableEmail,
-		email,
-		smtpSecure,
-		smtpHost,
-		smtpPort,
-		smtpUser,
-		smtpPass,
+		enableEmail: enableEmail.value,
+		email: email.value,
+		smtpSecure: smtpSecure.value,
+		smtpHost: smtpHost.value,
+		smtpPort: smtpPort.value,
+		smtpUser: smtpUser.value,
+		smtpPass: smtpPass.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.emailServer,
diff --git a/packages/frontend/src/pages/admin/external-services.vue b/packages/frontend/src/pages/admin/external-services.vue
index e614bfeb1b..22dc115fda 100644
--- a/packages/frontend/src/pages/admin/external-services.vue
+++ b/packages/frontend/src/pages/admin/external-services.vue
@@ -34,7 +34,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -46,27 +46,27 @@ import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let deeplAuthKey: string = $ref('');
-let deeplIsPro: boolean = $ref(false);
+const deeplAuthKey = ref<string>('');
+const deeplIsPro = ref<boolean>(false);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	deeplAuthKey = meta.deeplAuthKey;
-	deeplIsPro = meta.deeplIsPro;
+	deeplAuthKey.value = meta.deeplAuthKey;
+	deeplIsPro.value = meta.deeplIsPro;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		deeplAuthKey,
-		deeplIsPro,
+		deeplAuthKey: deeplAuthKey.value,
+		deeplIsPro: deeplIsPro.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.externalServices,
diff --git a/packages/frontend/src/pages/admin/federation.vue b/packages/frontend/src/pages/admin/federation.vue
index 41849894ea..bfe9a8c570 100644
--- a/packages/frontend/src/pages/admin/federation.vue
+++ b/packages/frontend/src/pages/admin/federation.vue
@@ -58,7 +58,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import XHeader from './_header_.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkSelect from '@/components/MkSelect.vue';
@@ -68,24 +68,24 @@ import FormSplit from '@/components/form/split.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let host = $ref('');
-let state = $ref('federating');
-let sort = $ref('+pubSub');
+const host = ref('');
+const state = ref('federating');
+const sort = ref('+pubSub');
 const pagination = {
 	endpoint: 'federation/instances' as const,
 	limit: 10,
 	offsetMode: true,
 	params: computed(() => ({
-		sort: sort,
-		host: host !== '' ? host : null,
+		sort: sort.value,
+		host: host.value !== '' ? host.value : null,
 		...(
-			state === 'federating' ? { federating: true } :
-			state === 'subscribing' ? { subscribing: true } :
-			state === 'publishing' ? { publishing: true } :
-			state === 'suspended' ? { suspended: true } :
-			state === 'blocked' ? { blocked: true } :
-			state === 'silenced' ? { silenced: true } :
-			state === 'notResponding' ? { notResponding: true } :
+			state.value === 'federating' ? { federating: true } :
+			state.value === 'subscribing' ? { subscribing: true } :
+			state.value === 'publishing' ? { publishing: true } :
+			state.value === 'suspended' ? { suspended: true } :
+			state.value === 'blocked' ? { blocked: true } :
+			state.value === 'silenced' ? { silenced: true } :
+			state.value === 'notResponding' ? { notResponding: true } :
 			{}),
 	})),
 };
@@ -98,9 +98,9 @@ function getStatus(instance) {
 	return 'Alive';
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.federation,
diff --git a/packages/frontend/src/pages/admin/files.vue b/packages/frontend/src/pages/admin/files.vue
index 6fb6ef40f9..9d26925993 100644
--- a/packages/frontend/src/pages/admin/files.vue
+++ b/packages/frontend/src/pages/admin/files.vue
@@ -36,7 +36,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import XHeader from './_header_.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkSelect from '@/components/MkSelect.vue';
@@ -45,19 +45,19 @@ import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let origin = $ref('local');
-let type = $ref(null);
-let searchHost = $ref('');
-let userId = $ref('');
-let viewMode = $ref('grid');
+const origin = ref('local');
+const type = ref(null);
+const searchHost = ref('');
+const userId = ref('');
+const viewMode = ref('grid');
 const pagination = {
 	endpoint: 'admin/drive/files' as const,
 	limit: 10,
 	params: computed(() => ({
-		type: (type && type !== '') ? type : null,
-		userId: (userId && userId !== '') ? userId : null,
-		origin: origin,
-		hostname: (searchHost && searchHost !== '') ? searchHost : null,
+		type: (type.value && type.value !== '') ? type.value : null,
+		userId: (userId.value && userId.value !== '') ? userId.value : null,
+		origin: origin.value,
+		hostname: (searchHost.value && searchHost.value !== '') ? searchHost.value : null,
 	})),
 };
 
@@ -95,7 +95,7 @@ async function find() {
 	});
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	text: i18n.ts.lookup,
 	icon: 'ti ti-search',
 	handler: find,
@@ -105,7 +105,7 @@ const headerActions = $computed(() => [{
 	handler: clear,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.files,
diff --git a/packages/frontend/src/pages/admin/index.vue b/packages/frontend/src/pages/admin/index.vue
index cc0cdf7466..414889125c 100644
--- a/packages/frontend/src/pages/admin/index.vue
+++ b/packages/frontend/src/pages/admin/index.vue
@@ -28,7 +28,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onActivated, onMounted, onUnmounted, provide, watch } from 'vue';
+import { onActivated, onMounted, onUnmounted, provide, watch, ref, computed } from 'vue';
 import { i18n } from '@/i18n.js';
 import MkSuperMenu from '@/components/MkSuperMenu.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -50,32 +50,32 @@ const indexInfo = {
 
 provide('shouldOmitHeaderTitle', false);
 
-let INFO = $ref(indexInfo);
-let childInfo = $ref(null);
-let narrow = $ref(false);
-let view = $ref(null);
-let el = $ref(null);
-let pageProps = $ref({});
+const INFO = ref(indexInfo);
+const childInfo = ref(null);
+const narrow = ref(false);
+const view = ref(null);
+const el = ref(null);
+const pageProps = ref({});
 let noMaintainerInformation = isEmpty(instance.maintainerName) || isEmpty(instance.maintainerEmail);
 let noBotProtection = !instance.disableRegistration && !instance.enableHcaptcha && !instance.enableRecaptcha && !instance.enableTurnstile;
 let noEmailServer = !instance.enableEmail;
-let thereIsUnresolvedAbuseReport = $ref(false);
-let currentPage = $computed(() => router.currentRef.value.child);
+const thereIsUnresolvedAbuseReport = ref(false);
+const currentPage = computed(() => router.currentRef.value.child);
 
 os.api('admin/abuse-user-reports', {
 	state: 'unresolved',
 	limit: 1,
 }).then(reports => {
-	if (reports.length > 0) thereIsUnresolvedAbuseReport = true;
+	if (reports.length > 0) thereIsUnresolvedAbuseReport.value = true;
 });
 
 const NARROW_THRESHOLD = 600;
 const ro = new ResizeObserver((entries, observer) => {
 	if (entries.length === 0) return;
-	narrow = entries[0].borderBoxSize[0].inlineSize < NARROW_THRESHOLD;
+	narrow.value = entries[0].borderBoxSize[0].inlineSize < NARROW_THRESHOLD;
 });
 
-const menuDef = $computed(() => [{
+const menuDef = computed(() => [{
 	title: i18n.ts.quickAction,
 	items: [{
 		type: 'button',
@@ -94,67 +94,67 @@ const menuDef = $computed(() => [{
 		icon: 'ti ti-dashboard',
 		text: i18n.ts.dashboard,
 		to: '/admin/overview',
-		active: currentPage?.route.name === 'overview',
+		active: currentPage.value?.route.name === 'overview',
 	}, {
 		icon: 'ti ti-users',
 		text: i18n.ts.users,
 		to: '/admin/users',
-		active: currentPage?.route.name === 'users',
+		active: currentPage.value?.route.name === 'users',
 	}, {
 		icon: 'ti ti-user-plus',
 		text: i18n.ts.invite,
 		to: '/admin/invites',
-		active: currentPage?.route.name === 'invites',
+		active: currentPage.value?.route.name === 'invites',
 	}, {
 		icon: 'ti ti-badges',
 		text: i18n.ts.roles,
 		to: '/admin/roles',
-		active: currentPage?.route.name === 'roles',
+		active: currentPage.value?.route.name === 'roles',
 	}, {
 		icon: 'ti ti-icons',
 		text: i18n.ts.customEmojis,
 		to: '/admin/emojis',
-		active: currentPage?.route.name === 'emojis',
+		active: currentPage.value?.route.name === 'emojis',
 	}, {
 		icon: 'ti ti-sparkles',
 		text: i18n.ts.avatarDecorations,
 		to: '/admin/avatar-decorations',
-		active: currentPage?.route.name === 'avatarDecorations',
+		active: currentPage.value?.route.name === 'avatarDecorations',
 	}, {
 		icon: 'ti ti-whirl',
 		text: i18n.ts.federation,
 		to: '/admin/federation',
-		active: currentPage?.route.name === 'federation',
+		active: currentPage.value?.route.name === 'federation',
 	}, {
 		icon: 'ti ti-clock-play',
 		text: i18n.ts.jobQueue,
 		to: '/admin/queue',
-		active: currentPage?.route.name === 'queue',
+		active: currentPage.value?.route.name === 'queue',
 	}, {
 		icon: 'ti ti-cloud',
 		text: i18n.ts.files,
 		to: '/admin/files',
-		active: currentPage?.route.name === 'files',
+		active: currentPage.value?.route.name === 'files',
 	}, {
 		icon: 'ti ti-speakerphone',
 		text: i18n.ts.announcements,
 		to: '/admin/announcements',
-		active: currentPage?.route.name === 'announcements',
+		active: currentPage.value?.route.name === 'announcements',
 	}, {
 		icon: 'ti ti-ad',
 		text: i18n.ts.ads,
 		to: '/admin/ads',
-		active: currentPage?.route.name === 'ads',
+		active: currentPage.value?.route.name === 'ads',
 	}, {
 		icon: 'ti ti-exclamation-circle',
 		text: i18n.ts.abuseReports,
 		to: '/admin/abuses',
-		active: currentPage?.route.name === 'abuses',
+		active: currentPage.value?.route.name === 'abuses',
 	}, {
 		icon: 'ti ti-list-search',
 		text: i18n.ts.moderationLogs,
 		to: '/admin/modlog',
-		active: currentPage?.route.name === 'modlog',
+		active: currentPage.value?.route.name === 'modlog',
 	}],
 }, {
 	title: i18n.ts.settings,
@@ -162,57 +162,57 @@ const menuDef = $computed(() => [{
 		icon: 'ti ti-settings',
 		text: i18n.ts.general,
 		to: '/admin/settings',
-		active: currentPage?.route.name === 'settings',
+		active: currentPage.value?.route.name === 'settings',
 	}, {
 		icon: 'ti ti-paint',
 		text: i18n.ts.branding,
 		to: '/admin/branding',
-		active: currentPage?.route.name === 'branding',
+		active: currentPage.value?.route.name === 'branding',
 	}, {
 		icon: 'ti ti-shield',
 		text: i18n.ts.moderation,
 		to: '/admin/moderation',
-		active: currentPage?.route.name === 'moderation',
+		active: currentPage.value?.route.name === 'moderation',
 	}, {
 		icon: 'ti ti-mail',
 		text: i18n.ts.emailServer,
 		to: '/admin/email-settings',
-		active: currentPage?.route.name === 'email-settings',
+		active: currentPage.value?.route.name === 'email-settings',
 	}, {
 		icon: 'ti ti-cloud',
 		text: i18n.ts.objectStorage,
 		to: '/admin/object-storage',
-		active: currentPage?.route.name === 'object-storage',
+		active: currentPage.value?.route.name === 'object-storage',
 	}, {
 		icon: 'ti ti-lock',
 		text: i18n.ts.security,
 		to: '/admin/security',
-		active: currentPage?.route.name === 'security',
+		active: currentPage.value?.route.name === 'security',
 	}, {
 		icon: 'ti ti-planet',
 		text: i18n.ts.relays,
 		to: '/admin/relays',
-		active: currentPage?.route.name === 'relays',
+		active: currentPage.value?.route.name === 'relays',
 	}, {
 		icon: 'ti ti-ban',
 		text: i18n.ts.instanceBlocking,
 		to: '/admin/instance-block',
-		active: currentPage?.route.name === 'instance-block',
+		active: currentPage.value?.route.name === 'instance-block',
 	}, {
 		icon: 'ti ti-ghost',
 		text: i18n.ts.proxyAccount,
 		to: '/admin/proxy-account',
-		active: currentPage?.route.name === 'proxy-account',
+		active: currentPage.value?.route.name === 'proxy-account',
 	}, {
 		icon: 'ti ti-link',
 		text: i18n.ts.externalServices,
 		to: '/admin/external-services',
-		active: currentPage?.route.name === 'external-services',
+		active: currentPage.value?.route.name === 'external-services',
 	}, {
 		icon: 'ti ti-adjustments',
 		text: i18n.ts.other,
 		to: '/admin/other-settings',
-		active: currentPage?.route.name === 'other-settings',
+		active: currentPage.value?.route.name === 'other-settings',
 	}],
 }, {
 	title: i18n.ts.info,
@@ -220,28 +220,28 @@ const menuDef = $computed(() => [{
 		icon: 'ti ti-database',
 		text: i18n.ts.database,
 		to: '/admin/database',
-		active: currentPage?.route.name === 'database',
+		active: currentPage.value?.route.name === 'database',
 	}],
 }]);
 
-watch(narrow, () => {
-	if (currentPage?.route.name == null && !narrow) {
+watch(narrow.value, () => {
+	if (currentPage.value?.route.name == null && !narrow.value) {
 		router.push('/admin/overview');
 	}
 });
 
 onMounted(() => {
-	ro.observe(el);
+	ro.observe(el.value);
 
-	narrow = el.offsetWidth < NARROW_THRESHOLD;
-	if (currentPage?.route.name == null && !narrow) {
+	narrow.value = el.value.offsetWidth < NARROW_THRESHOLD;
+	if (currentPage.value?.route.name == null && !narrow.value) {
 		router.push('/admin/overview');
 	}
 });
 
 onActivated(() => {
-	narrow = el.offsetWidth < NARROW_THRESHOLD;
-	if (currentPage?.route.name == null && !narrow) {
+	narrow.value = el.value.offsetWidth < NARROW_THRESHOLD;
+	if (currentPage.value?.route.name == null && !narrow.value) {
 		router.push('/admin/overview');
 	}
 });
@@ -251,16 +251,16 @@ onUnmounted(() => {
 });
 
 watch(router.currentRef, (to) => {
-	if (to.route.path === '/admin' && to.child?.route.name == null && !narrow) {
+	if (to.route.path === '/admin' && to.child?.route.name == null && !narrow.value) {
 		router.replace('/admin/overview');
 	}
 });
 
 provideMetadataReceiver((info) => {
 	if (info == null) {
-		childInfo = null;
+		childInfo.value = null;
 	} else {
-		childInfo = info;
+		childInfo.value = info;
 	}
 });
 
@@ -312,11 +312,11 @@ function lookup(ev: MouseEvent) {
 	}], ev.currentTarget ?? ev.target);
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(INFO);
+definePageMetadata(INFO.value);
 
 defineExpose({
 	header: {
diff --git a/packages/frontend/src/pages/admin/instance-block.vue b/packages/frontend/src/pages/admin/instance-block.vue
index 259354b3d0..356eca2af6 100644
--- a/packages/frontend/src/pages/admin/instance-block.vue
+++ b/packages/frontend/src/pages/admin/instance-block.vue
@@ -23,6 +23,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkTextarea from '@/components/MkTextarea.vue';
@@ -32,29 +33,29 @@ import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let blockedHosts: string = $ref('');
-let silencedHosts: string = $ref('');
-let tab = $ref('block');
+const blockedHosts = ref<string>('');
+const silencedHosts = ref<string>('');
+const tab = ref('block');
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	blockedHosts = meta.blockedHosts.join('\n');
-	silencedHosts = meta.silencedHosts.join('\n');
+	blockedHosts.value = meta.blockedHosts.join('\n');
+	silencedHosts.value = meta.silencedHosts.join('\n');
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		blockedHosts: blockedHosts.split('\n') || [],
-		silencedHosts: silencedHosts.split('\n') || [],
+		blockedHosts: blockedHosts.value.split('\n') || [],
+		silencedHosts: silencedHosts.value.split('\n') || [],
 
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'block',
 	title: i18n.ts.block,
 	icon: 'ti ti-ban',
diff --git a/packages/frontend/src/pages/admin/invites.vue b/packages/frontend/src/pages/admin/invites.vue
index 74dc2e4c36..838ef52b14 100644
--- a/packages/frontend/src/pages/admin/invites.vue
+++ b/packages/frontend/src/pages/admin/invites.vue
@@ -70,8 +70,8 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 
 const pagingComponent = shallowRef<InstanceType<typeof MkPagination>>();
 
-let type = ref('all');
-let sort = ref('+createdAt');
+const type = ref('all');
+const sort = ref('+createdAt');
 
 const pagination: Paging = {
 	endpoint: 'admin/invite/list' as const,
@@ -109,8 +109,8 @@ function deleted(id: string) {
 	}
 }
 
-const headerActions = $computed(() => []);
-const headerTabs = $computed(() => []);
+const headerActions = computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.invite,
diff --git a/packages/frontend/src/pages/admin/moderation.vue b/packages/frontend/src/pages/admin/moderation.vue
index 47f46fe6cf..a64dad3164 100644
--- a/packages/frontend/src/pages/admin/moderation.vue
+++ b/packages/frontend/src/pages/admin/moderation.vue
@@ -59,7 +59,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -74,40 +74,40 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 import FormLink from '@/components/form/link.vue';
 
-let enableRegistration: boolean = $ref(false);
-let emailRequiredForSignup: boolean = $ref(false);
-let sensitiveWords: string = $ref('');
-let hiddenTags: string = $ref('');
-let preservedUsernames: string = $ref('');
-let tosUrl: string | null = $ref(null);
-let privacyPolicyUrl: string | null = $ref(null);
+const enableRegistration = ref<boolean>(false);
+const emailRequiredForSignup = ref<boolean>(false);
+const sensitiveWords = ref<string>('');
+const hiddenTags = ref<string>('');
+const preservedUsernames = ref<string>('');
+const tosUrl = ref<string | null>(null);
+const privacyPolicyUrl = ref<string | null>(null);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	enableRegistration = !meta.disableRegistration;
-	emailRequiredForSignup = meta.emailRequiredForSignup;
-	sensitiveWords = meta.sensitiveWords.join('\n');
-	hiddenTags = meta.hiddenTags.join('\n');
-	preservedUsernames = meta.preservedUsernames.join('\n');
-	tosUrl = meta.tosUrl;
-	privacyPolicyUrl = meta.privacyPolicyUrl;
+	enableRegistration.value = !meta.disableRegistration;
+	emailRequiredForSignup.value = meta.emailRequiredForSignup;
+	sensitiveWords.value = meta.sensitiveWords.join('\n');
+	hiddenTags.value = meta.hiddenTags.join('\n');
+	preservedUsernames.value = meta.preservedUsernames.join('\n');
+	tosUrl.value = meta.tosUrl;
+	privacyPolicyUrl.value = meta.privacyPolicyUrl;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		disableRegistration: !enableRegistration,
-		emailRequiredForSignup,
-		tosUrl,
-		privacyPolicyUrl,
-		sensitiveWords: sensitiveWords.split('\n'),
-		hiddenTags: hiddenTags.split('\n'),
-		preservedUsernames: preservedUsernames.split('\n'),
+		disableRegistration: !enableRegistration.value,
+		emailRequiredForSignup: emailRequiredForSignup.value,
+		tosUrl: tosUrl.value,
+		privacyPolicyUrl: privacyPolicyUrl.value,
+		sensitiveWords: sensitiveWords.value.split('\n'),
+		hiddenTags: hiddenTags.value.split('\n'),
+		preservedUsernames: preservedUsernames.value.split('\n'),
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.moderation,
diff --git a/packages/frontend/src/pages/admin/modlog.vue b/packages/frontend/src/pages/admin/modlog.vue
index 4b5ef5f771..7daf9acc29 100644
--- a/packages/frontend/src/pages/admin/modlog.vue
+++ b/packages/frontend/src/pages/admin/modlog.vue
@@ -30,7 +30,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, shallowRef, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import XHeader from './_header_.vue';
 import XModLog from './modlog.ModLog.vue';
@@ -40,25 +40,25 @@ import MkPagination from '@/components/MkPagination.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let logs = $shallowRef<InstanceType<typeof MkPagination>>();
+const logs = shallowRef<InstanceType<typeof MkPagination>>();
 
-let type = $ref(null);
-let moderatorId = $ref('');
+const type = ref(null);
+const moderatorId = ref('');
 
 const pagination = {
 	endpoint: 'admin/show-moderation-logs' as const,
 	limit: 30,
 	params: computed(() => ({
-		type,
-		userId: moderatorId === '' ? null : moderatorId,
+		type: type.value,
+		userId: moderatorId.value === '' ? null : moderatorId.value,
 	})),
 };
 
 console.log(Misskey);
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.moderationLogs,
diff --git a/packages/frontend/src/pages/admin/object-storage.vue b/packages/frontend/src/pages/admin/object-storage.vue
index 8d27c31068..7019971e90 100644
--- a/packages/frontend/src/pages/admin/object-storage.vue
+++ b/packages/frontend/src/pages/admin/object-storage.vue
@@ -83,7 +83,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -95,58 +95,58 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 
-let useObjectStorage: boolean = $ref(false);
-let objectStorageBaseUrl: string | null = $ref(null);
-let objectStorageBucket: string | null = $ref(null);
-let objectStoragePrefix: string | null = $ref(null);
-let objectStorageEndpoint: string | null = $ref(null);
-let objectStorageRegion: string | null = $ref(null);
-let objectStoragePort: number | null = $ref(null);
-let objectStorageAccessKey: string | null = $ref(null);
-let objectStorageSecretKey: string | null = $ref(null);
-let objectStorageUseSSL: boolean = $ref(false);
-let objectStorageUseProxy: boolean = $ref(false);
-let objectStorageSetPublicRead: boolean = $ref(false);
-let objectStorageS3ForcePathStyle: boolean = $ref(true);
+const useObjectStorage = ref<boolean>(false);
+const objectStorageBaseUrl = ref<string | null>(null);
+const objectStorageBucket = ref<string | null>(null);
+const objectStoragePrefix = ref<string | null>(null);
+const objectStorageEndpoint = ref<string | null>(null);
+const objectStorageRegion = ref<string | null>(null);
+const objectStoragePort = ref<number | null>(null);
+const objectStorageAccessKey = ref<string | null>(null);
+const objectStorageSecretKey = ref<string | null>(null);
+const objectStorageUseSSL = ref<boolean>(false);
+const objectStorageUseProxy = ref<boolean>(false);
+const objectStorageSetPublicRead = ref<boolean>(false);
+const objectStorageS3ForcePathStyle = ref<boolean>(true);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	useObjectStorage = meta.useObjectStorage;
-	objectStorageBaseUrl = meta.objectStorageBaseUrl;
-	objectStorageBucket = meta.objectStorageBucket;
-	objectStoragePrefix = meta.objectStoragePrefix;
-	objectStorageEndpoint = meta.objectStorageEndpoint;
-	objectStorageRegion = meta.objectStorageRegion;
-	objectStoragePort = meta.objectStoragePort;
-	objectStorageAccessKey = meta.objectStorageAccessKey;
-	objectStorageSecretKey = meta.objectStorageSecretKey;
-	objectStorageUseSSL = meta.objectStorageUseSSL;
-	objectStorageUseProxy = meta.objectStorageUseProxy;
-	objectStorageSetPublicRead = meta.objectStorageSetPublicRead;
-	objectStorageS3ForcePathStyle = meta.objectStorageS3ForcePathStyle;
+	useObjectStorage.value = meta.useObjectStorage;
+	objectStorageBaseUrl.value = meta.objectStorageBaseUrl;
+	objectStorageBucket.value = meta.objectStorageBucket;
+	objectStoragePrefix.value = meta.objectStoragePrefix;
+	objectStorageEndpoint.value = meta.objectStorageEndpoint;
+	objectStorageRegion.value = meta.objectStorageRegion;
+	objectStoragePort.value = meta.objectStoragePort;
+	objectStorageAccessKey.value = meta.objectStorageAccessKey;
+	objectStorageSecretKey.value = meta.objectStorageSecretKey;
+	objectStorageUseSSL.value = meta.objectStorageUseSSL;
+	objectStorageUseProxy.value = meta.objectStorageUseProxy;
+	objectStorageSetPublicRead.value = meta.objectStorageSetPublicRead;
+	objectStorageS3ForcePathStyle.value = meta.objectStorageS3ForcePathStyle;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		useObjectStorage,
-		objectStorageBaseUrl,
-		objectStorageBucket,
-		objectStoragePrefix,
-		objectStorageEndpoint,
-		objectStorageRegion,
-		objectStoragePort,
-		objectStorageAccessKey,
-		objectStorageSecretKey,
-		objectStorageUseSSL,
-		objectStorageUseProxy,
-		objectStorageSetPublicRead,
-		objectStorageS3ForcePathStyle,
+		useObjectStorage: useObjectStorage.value,
+		objectStorageBaseUrl: objectStorageBaseUrl.value,
+		objectStorageBucket: objectStorageBucket.value,
+		objectStoragePrefix: objectStoragePrefix.value,
+		objectStorageEndpoint: objectStorageEndpoint.value,
+		objectStorageRegion: objectStorageRegion.value,
+		objectStoragePort: objectStoragePort.value,
+		objectStorageAccessKey: objectStorageAccessKey.value,
+		objectStorageSecretKey: objectStorageSecretKey.value,
+		objectStorageUseSSL: objectStorageUseSSL.value,
+		objectStorageUseProxy: objectStorageUseProxy.value,
+		objectStorageSetPublicRead: objectStorageSetPublicRead.value,
+		objectStorageS3ForcePathStyle: objectStorageS3ForcePathStyle.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.objectStorage,
diff --git a/packages/frontend/src/pages/admin/other-settings.vue b/packages/frontend/src/pages/admin/other-settings.vue
index 7574c9d7d9..5bb328ac92 100644
--- a/packages/frontend/src/pages/admin/other-settings.vue
+++ b/packages/frontend/src/pages/admin/other-settings.vue
@@ -43,7 +43,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import FormSuspense from '@/components/form/suspense.vue';
 import * as os from '@/os.js';
@@ -52,38 +52,38 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkSwitch from '@/components/MkSwitch.vue';
 
-let enableServerMachineStats: boolean = $ref(false);
-let enableIdenticonGeneration: boolean = $ref(false);
-let enableChartsForRemoteUser: boolean = $ref(false);
-let enableChartsForFederatedInstances: boolean = $ref(false);
+const enableServerMachineStats = ref<boolean>(false);
+const enableIdenticonGeneration = ref<boolean>(false);
+const enableChartsForRemoteUser = ref<boolean>(false);
+const enableChartsForFederatedInstances = ref<boolean>(false);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	enableServerMachineStats = meta.enableServerMachineStats;
-	enableIdenticonGeneration = meta.enableIdenticonGeneration;
-	enableChartsForRemoteUser = meta.enableChartsForRemoteUser;
-	enableChartsForFederatedInstances = meta.enableChartsForFederatedInstances;
+	enableServerMachineStats.value = meta.enableServerMachineStats;
+	enableIdenticonGeneration.value = meta.enableIdenticonGeneration;
+	enableChartsForRemoteUser.value = meta.enableChartsForRemoteUser;
+	enableChartsForFederatedInstances.value = meta.enableChartsForFederatedInstances;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		enableServerMachineStats,
-		enableIdenticonGeneration,
-		enableChartsForRemoteUser,
-		enableChartsForFederatedInstances,
+		enableServerMachineStats: enableServerMachineStats.value,
+		enableIdenticonGeneration: enableIdenticonGeneration.value,
+		enableChartsForRemoteUser: enableChartsForRemoteUser.value,
+		enableChartsForFederatedInstances: enableChartsForFederatedInstances.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-check',
 	text: i18n.ts.save,
 	handler: save,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.other,
diff --git a/packages/frontend/src/pages/admin/overview.active-users.vue b/packages/frontend/src/pages/admin/overview.active-users.vue
index 8426c463d2..5e67370c2b 100644
--- a/packages/frontend/src/pages/admin/overview.active-users.vue
+++ b/packages/frontend/src/pages/admin/overview.active-users.vue
@@ -13,7 +13,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, shallowRef, ref } from 'vue';
 import { Chart } from 'chart.js';
 import gradient from 'chartjs-plugin-gradient';
 import * as os from '@/os.js';
@@ -24,11 +24,11 @@ import { initChart } from '@/scripts/init-chart.js';
 
 initChart();
 
-const chartEl = $shallowRef<HTMLCanvasElement>(null);
+const chartEl = shallowRef<HTMLCanvasElement>(null);
 const now = new Date();
 let chartInstance: Chart = null;
 const chartLimit = 7;
-let fetching = $ref(true);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 
@@ -61,7 +61,7 @@ async function renderChart() {
 
 	const max = Math.max(...raw.read);
 
-	chartInstance = new Chart(chartEl, {
+	chartInstance = new Chart(chartEl.value, {
 		type: 'bar',
 		data: {
 			datasets: [{
@@ -155,7 +155,7 @@ async function renderChart() {
 		plugins: [chartVLine(vLineColor)],
 	});
 
-	fetching = false;
+	fetching.value = false;
 }
 
 onMounted(async () => {
diff --git a/packages/frontend/src/pages/admin/overview.ap-requests.vue b/packages/frontend/src/pages/admin/overview.ap-requests.vue
index cd54041c34..0de62fadea 100644
--- a/packages/frontend/src/pages/admin/overview.ap-requests.vue
+++ b/packages/frontend/src/pages/admin/overview.ap-requests.vue
@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, shallowRef, ref } from 'vue';
 import { Chart } from 'chart.js';
 import gradient from 'chartjs-plugin-gradient';
 import * as os from '@/os.js';
@@ -33,9 +33,9 @@ import { initChart } from '@/scripts/init-chart.js';
 initChart();
 
 const chartLimit = 50;
-const chartEl = $shallowRef<HTMLCanvasElement>();
-const chartEl2 = $shallowRef<HTMLCanvasElement>();
-let fetching = $ref(true);
+const chartEl = shallowRef<HTMLCanvasElement>();
+const chartEl2 = shallowRef<HTMLCanvasElement>();
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 const { handler: externalTooltipHandler2 } = useChartTooltip();
@@ -74,7 +74,7 @@ onMounted(async () => {
 	const succMax = Math.max(...raw.deliverSucceeded);
 	const failMax = Math.max(...raw.deliverFailed);
 
-	new Chart(chartEl, {
+	new Chart(chartEl.value, {
 		type: 'line',
 		data: {
 			datasets: [{
@@ -178,7 +178,7 @@ onMounted(async () => {
 		plugins: [chartVLine(vLineColor)],
 	});
 
-	new Chart(chartEl2, {
+	new Chart(chartEl2.value, {
 		type: 'bar',
 		data: {
 			datasets: [{
@@ -265,7 +265,7 @@ onMounted(async () => {
 		plugins: [chartVLine(vLineColor)],
 	});
 
-	fetching = false;
+	fetching.value = false;
 });
 </script>
 
diff --git a/packages/frontend/src/pages/admin/overview.federation.vue b/packages/frontend/src/pages/admin/overview.federation.vue
index 346a9c0258..033fc9ad85 100644
--- a/packages/frontend/src/pages/admin/overview.federation.vue
+++ b/packages/frontend/src/pages/admin/overview.federation.vue
@@ -46,7 +46,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref } from 'vue';
 import XPie from './overview.pie.vue';
 import * as os from '@/os.js';
 import number from '@/filters/number.js';
@@ -54,25 +54,25 @@ import MkNumberDiff from '@/components/MkNumberDiff.vue';
 import { i18n } from '@/i18n.js';
 import { useChartTooltip } from '@/scripts/use-chart-tooltip.js';
 
-let topSubInstancesForPie: any = $ref(null);
-let topPubInstancesForPie: any = $ref(null);
-let federationPubActive = $ref<number | null>(null);
-let federationPubActiveDiff = $ref<number | null>(null);
-let federationSubActive = $ref<number | null>(null);
-let federationSubActiveDiff = $ref<number | null>(null);
-let fetching = $ref(true);
+const topSubInstancesForPie = ref<any>(null);
+const topPubInstancesForPie = ref<any>(null);
+const federationPubActive = ref<number | null>(null);
+const federationPubActiveDiff = ref<number | null>(null);
+const federationSubActive = ref<number | null>(null);
+const federationSubActiveDiff = ref<number | null>(null);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 
 onMounted(async () => {
 	const chart = await os.apiGet('charts/federation', { limit: 2, span: 'day' });
-	federationPubActive = chart.pubActive[0];
-	federationPubActiveDiff = chart.pubActive[0] - chart.pubActive[1];
-	federationSubActive = chart.subActive[0];
-	federationSubActiveDiff = chart.subActive[0] - chart.subActive[1];
+	federationPubActive.value = chart.pubActive[0];
+	federationPubActiveDiff.value = chart.pubActive[0] - chart.pubActive[1];
+	federationSubActive.value = chart.subActive[0];
+	federationSubActiveDiff.value = chart.subActive[0] - chart.subActive[1];
 
 	os.apiGet('federation/stats', { limit: 10 }).then(res => {
-		topSubInstancesForPie = res.topSubInstances.map(x => ({
+		topSubInstancesForPie.value = res.topSubInstances.map(x => ({
 			name: x.host,
 			color: x.themeColor,
 			value: x.followersCount,
@@ -80,7 +80,7 @@ onMounted(async () => {
 				os.pageWindow(`/instance-info/${x.host}`);
 			},
 		})).concat([{ name: '(other)', color: '#80808080', value: res.otherFollowersCount }]);
-		topPubInstancesForPie = res.topPubInstances.map(x => ({
+		topPubInstancesForPie.value = res.topPubInstances.map(x => ({
 			name: x.host,
 			color: x.themeColor,
 			value: x.followingCount,
@@ -90,7 +90,7 @@ onMounted(async () => {
 		})).concat([{ name: '(other)', color: '#80808080', value: res.otherFollowingCount }]);
 	});
 
-	fetching = false;
+	fetching.value = false;
 });
 </script>
 
diff --git a/packages/frontend/src/pages/admin/overview.heatmap.vue b/packages/frontend/src/pages/admin/overview.heatmap.vue
index 4d09f183bf..8e3c809353 100644
--- a/packages/frontend/src/pages/admin/overview.heatmap.vue
+++ b/packages/frontend/src/pages/admin/overview.heatmap.vue
@@ -17,10 +17,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref } from 'vue';
 import MkHeatmap from '@/components/MkHeatmap.vue';
 import MkSelect from '@/components/MkSelect.vue';
 
-let src = $ref('active-users');
+const src = ref('active-users');
 </script>
 
 <style lang="scss" module>
diff --git a/packages/frontend/src/pages/admin/overview.moderators.vue b/packages/frontend/src/pages/admin/overview.moderators.vue
index 4086ca51f0..c6e81b4a18 100644
--- a/packages/frontend/src/pages/admin/overview.moderators.vue
+++ b/packages/frontend/src/pages/admin/overview.moderators.vue
@@ -17,21 +17,21 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref } from 'vue';
 import * as os from '@/os.js';
 import { defaultStore } from '@/store.js';
 
-let moderators: any = $ref(null);
-let fetching = $ref(true);
+const moderators = ref<any>(null);
+const fetching = ref(true);
 
 onMounted(async () => {
-	moderators = await os.api('admin/show-users', {
+	moderators.value = await os.api('admin/show-users', {
 		sort: '+lastActiveDate',
 		state: 'adminOrModerator',
 		limit: 30,
 	});
 
-	fetching = false;
+	fetching.value = false;
 });
 </script>
 
diff --git a/packages/frontend/src/pages/admin/overview.queue.vue b/packages/frontend/src/pages/admin/overview.queue.vue
index 1af9d89f62..b6b3bf194a 100644
--- a/packages/frontend/src/pages/admin/overview.queue.vue
+++ b/packages/frontend/src/pages/admin/overview.queue.vue
@@ -35,7 +35,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { markRaw, onMounted, onUnmounted, ref } from 'vue';
+import { markRaw, onMounted, onUnmounted, ref, shallowRef } from 'vue';
 import XChart from './overview.queue.chart.vue';
 import number from '@/filters/number.js';
 import { useStream } from '@/stream.js';
@@ -46,10 +46,10 @@ const activeSincePrevTick = ref(0);
 const active = ref(0);
 const delayed = ref(0);
 const waiting = ref(0);
-let chartProcess = $shallowRef<InstanceType<typeof XChart>>();
-let chartActive = $shallowRef<InstanceType<typeof XChart>>();
-let chartDelayed = $shallowRef<InstanceType<typeof XChart>>();
-let chartWaiting = $shallowRef<InstanceType<typeof XChart>>();
+const chartProcess = shallowRef<InstanceType<typeof XChart>>();
+const chartActive = shallowRef<InstanceType<typeof XChart>>();
+const chartDelayed = shallowRef<InstanceType<typeof XChart>>();
+const chartWaiting = shallowRef<InstanceType<typeof XChart>>();
 
 const props = defineProps<{
 	domain: string;
@@ -61,10 +61,10 @@ const onStats = (stats) => {
 	delayed.value = stats[props.domain].delayed;
 	waiting.value = stats[props.domain].waiting;
 
-	chartProcess.pushData(stats[props.domain].activeSincePrevTick);
-	chartActive.pushData(stats[props.domain].active);
-	chartDelayed.pushData(stats[props.domain].delayed);
-	chartWaiting.pushData(stats[props.domain].waiting);
+	chartProcess.value.pushData(stats[props.domain].activeSincePrevTick);
+	chartActive.value.pushData(stats[props.domain].active);
+	chartDelayed.value.pushData(stats[props.domain].delayed);
+	chartWaiting.value.pushData(stats[props.domain].waiting);
 };
 
 const onStatsLog = (statsLog) => {
@@ -80,10 +80,10 @@ const onStatsLog = (statsLog) => {
 		dataWaiting.push(stats[props.domain].waiting);
 	}
 
-	chartProcess.setData(dataProcess);
-	chartActive.setData(dataActive);
-	chartDelayed.setData(dataDelayed);
-	chartWaiting.setData(dataWaiting);
+	chartProcess.value.setData(dataProcess);
+	chartActive.value.setData(dataActive);
+	chartDelayed.value.setData(dataDelayed);
+	chartWaiting.value.setData(dataWaiting);
 };
 
 onMounted(() => {
diff --git a/packages/frontend/src/pages/admin/overview.stats.vue b/packages/frontend/src/pages/admin/overview.stats.vue
index 5899177efa..ea8cb164cd 100644
--- a/packages/frontend/src/pages/admin/overview.stats.vue
+++ b/packages/frontend/src/pages/admin/overview.stats.vue
@@ -61,7 +61,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref } from 'vue';
 import * as os from '@/os.js';
 import MkNumberDiff from '@/components/MkNumberDiff.vue';
 import MkNumber from '@/components/MkNumber.vue';
@@ -69,29 +69,29 @@ import { i18n } from '@/i18n.js';
 import { customEmojis } from '@/custom-emojis.js';
 import { defaultStore } from '@/store.js';
 
-let stats: any = $ref(null);
-let usersComparedToThePrevDay = $ref<number>();
-let notesComparedToThePrevDay = $ref<number>();
-let onlineUsersCount = $ref(0);
-let fetching = $ref(true);
+const stats = ref<any>(null);
+const usersComparedToThePrevDay = ref<number>();
+const notesComparedToThePrevDay = ref<number>();
+const onlineUsersCount = ref(0);
+const fetching = ref(true);
 
 onMounted(async () => {
 	const [_stats, _onlineUsersCount] = await Promise.all([
 		os.api('stats', {}),
 		os.apiGet('get-online-users-count').then(res => res.count),
 	]);
-	stats = _stats;
-	onlineUsersCount = _onlineUsersCount;
+	stats.value = _stats;
+	onlineUsersCount.value = _onlineUsersCount;
 
 	os.apiGet('charts/users', { limit: 2, span: 'day' }).then(chart => {
-		usersComparedToThePrevDay = stats.originalUsersCount - chart.local.total[1];
+		usersComparedToThePrevDay.value = stats.value.originalUsersCount - chart.local.total[1];
 	});
 
 	os.apiGet('charts/notes', { limit: 2, span: 'day' }).then(chart => {
-		notesComparedToThePrevDay = stats.originalNotesCount - chart.local.total[1];
+		notesComparedToThePrevDay.value = stats.value.originalNotesCount - chart.local.total[1];
 	});
 
-	fetching = false;
+	fetching.value = false;
 });
 </script>
 
diff --git a/packages/frontend/src/pages/admin/overview.users.vue b/packages/frontend/src/pages/admin/overview.users.vue
index 6ee83c51e7..6b8dd90747 100644
--- a/packages/frontend/src/pages/admin/overview.users.vue
+++ b/packages/frontend/src/pages/admin/overview.users.vue
@@ -17,13 +17,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref } from 'vue';
 import * as os from '@/os.js';
 import { useInterval } from '@/scripts/use-interval.js';
 import MkUserCardMini from '@/components/MkUserCardMini.vue';
 import { defaultStore } from '@/store.js';
 
-let newUsers = $ref(null);
-let fetching = $ref(true);
+const newUsers = ref(null);
+const fetching = ref(true);
 
 const fetch = async () => {
 	const _newUsers = await os.api('admin/show-users', {
@@ -31,8 +32,8 @@ const fetch = async () => {
 		sort: '+createdAt',
 		origin: 'local',
 	});
-	newUsers = _newUsers;
-	fetching = false;
+	newUsers.value = _newUsers;
+	fetching.value = false;
 };
 
 useInterval(fetch, 1000 * 60, {
diff --git a/packages/frontend/src/pages/admin/overview.vue b/packages/frontend/src/pages/admin/overview.vue
index 170dc0d212..8b7cad004f 100644
--- a/packages/frontend/src/pages/admin/overview.vue
+++ b/packages/frontend/src/pages/admin/overview.vue
@@ -65,7 +65,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { markRaw, onMounted, onBeforeUnmount, nextTick } from 'vue';
+import { markRaw, onMounted, onBeforeUnmount, nextTick, shallowRef, ref, computed } from 'vue';
 import XFederation from './overview.federation.vue';
 import XInstances from './overview.instances.vue';
 import XQueue from './overview.queue.vue';
@@ -82,16 +82,16 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkFoldableSection from '@/components/MkFoldableSection.vue';
 
-const rootEl = $shallowRef<HTMLElement>();
-let serverInfo: any = $ref(null);
-let topSubInstancesForPie: any = $ref(null);
-let topPubInstancesForPie: any = $ref(null);
-let federationPubActive = $ref<number | null>(null);
-let federationPubActiveDiff = $ref<number | null>(null);
-let federationSubActive = $ref<number | null>(null);
-let federationSubActiveDiff = $ref<number | null>(null);
-let newUsers = $ref(null);
-let activeInstances = $shallowRef(null);
+const rootEl = shallowRef<HTMLElement>();
+const serverInfo = ref<any>(null);
+const topSubInstancesForPie = ref<any>(null);
+const topPubInstancesForPie = ref<any>(null);
+const federationPubActive = ref<number | null>(null);
+const federationPubActiveDiff = ref<number | null>(null);
+const federationSubActive = ref<number | null>(null);
+const federationSubActiveDiff = ref<number | null>(null);
+const newUsers = ref(null);
+const activeInstances = shallowRef(null);
 const queueStatsConnection = markRaw(useStream().useChannel('queueStats'));
 const now = new Date();
 const filesPagination = {
@@ -116,14 +116,14 @@ onMounted(async () => {
 	*/
 
 	os.apiGet('charts/federation', { limit: 2, span: 'day' }).then(chart => {
-		federationPubActive = chart.pubActive[0];
-		federationPubActiveDiff = chart.pubActive[0] - chart.pubActive[1];
-		federationSubActive = chart.subActive[0];
-		federationSubActiveDiff = chart.subActive[0] - chart.subActive[1];
+		federationPubActive.value = chart.pubActive[0];
+		federationPubActiveDiff.value = chart.pubActive[0] - chart.pubActive[1];
+		federationSubActive.value = chart.subActive[0];
+		federationSubActiveDiff.value = chart.subActive[0] - chart.subActive[1];
 	});
 
 	os.apiGet('federation/stats', { limit: 10 }).then(res => {
-		topSubInstancesForPie = res.topSubInstances.map(x => ({
+		topSubInstancesForPie.value = res.topSubInstances.map(x => ({
 			name: x.host,
 			color: x.themeColor,
 			value: x.followersCount,
@@ -131,7 +131,7 @@ onMounted(async () => {
 				os.pageWindow(`/instance-info/${x.host}`);
 			},
 		})).concat([{ name: '(other)', color: '#80808080', value: res.otherFollowersCount }]);
-		topPubInstancesForPie = res.topPubInstances.map(x => ({
+		topPubInstancesForPie.value = res.topPubInstances.map(x => ({
 			name: x.host,
 			color: x.themeColor,
 			value: x.followingCount,
@@ -142,21 +142,21 @@ onMounted(async () => {
 	});
 
 	os.api('admin/server-info').then(serverInfoResponse => {
-		serverInfo = serverInfoResponse;
+		serverInfo.value = serverInfoResponse;
 	});
 
 	os.api('admin/show-users', {
 		limit: 5,
 		sort: '+createdAt',
 	}).then(res => {
-		newUsers = res;
+		newUsers.value = res;
 	});
 
 	os.api('federation/instances', {
 		sort: '+latestRequestReceivedAt',
 		limit: 25,
 	}).then(res => {
-		activeInstances = res;
+		activeInstances.value = res;
 	});
 
 	nextTick(() => {
@@ -171,9 +171,9 @@ onBeforeUnmount(() => {
 	queueStatsConnection.dispose();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.dashboard,
diff --git a/packages/frontend/src/pages/admin/proxy-account.vue b/packages/frontend/src/pages/admin/proxy-account.vue
index 9681215aa1..4fdecbb67e 100644
--- a/packages/frontend/src/pages/admin/proxy-account.vue
+++ b/packages/frontend/src/pages/admin/proxy-account.vue
@@ -21,7 +21,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkKeyValue from '@/components/MkKeyValue.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -31,36 +31,36 @@ import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let proxyAccount: any = $ref(null);
-let proxyAccountId: any = $ref(null);
+const proxyAccount = ref<any>(null);
+const proxyAccountId = ref<any>(null);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	proxyAccountId = meta.proxyAccountId;
-	if (proxyAccountId) {
-		proxyAccount = await os.api('users/show', { userId: proxyAccountId });
+	proxyAccountId.value = meta.proxyAccountId;
+	if (proxyAccountId.value) {
+		proxyAccount.value = await os.api('users/show', { userId: proxyAccountId.value });
 	}
 }
 
 function chooseProxyAccount() {
 	os.selectUser().then(user => {
-		proxyAccount = user;
-		proxyAccountId = user.id;
+		proxyAccount.value = user;
+		proxyAccountId.value = user.id;
 		save();
 	});
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		proxyAccountId: proxyAccountId,
+		proxyAccountId: proxyAccountId.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.proxyAccount,
diff --git a/packages/frontend/src/pages/admin/queue.chart.vue b/packages/frontend/src/pages/admin/queue.chart.vue
index d9f4af454d..a8fc2f391c 100644
--- a/packages/frontend/src/pages/admin/queue.chart.vue
+++ b/packages/frontend/src/pages/admin/queue.chart.vue
@@ -48,7 +48,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { markRaw, onMounted, onUnmounted, ref } from 'vue';
+import { markRaw, onMounted, onUnmounted, ref, shallowRef } from 'vue';
 import XChart from './queue.chart.chart.vue';
 import number from '@/filters/number.js';
 import * as os from '@/os.js';
@@ -63,10 +63,10 @@ const active = ref(0);
 const delayed = ref(0);
 const waiting = ref(0);
 const jobs = ref([]);
-let chartProcess = $shallowRef<InstanceType<typeof XChart>>();
-let chartActive = $shallowRef<InstanceType<typeof XChart>>();
-let chartDelayed = $shallowRef<InstanceType<typeof XChart>>();
-let chartWaiting = $shallowRef<InstanceType<typeof XChart>>();
+const chartProcess = shallowRef<InstanceType<typeof XChart>>();
+const chartActive = shallowRef<InstanceType<typeof XChart>>();
+const chartDelayed = shallowRef<InstanceType<typeof XChart>>();
+const chartWaiting = shallowRef<InstanceType<typeof XChart>>();
 
 const props = defineProps<{
 	domain: string;
@@ -78,10 +78,10 @@ const onStats = (stats) => {
 	delayed.value = stats[props.domain].delayed;
 	waiting.value = stats[props.domain].waiting;
 
-	chartProcess.pushData(stats[props.domain].activeSincePrevTick);
-	chartActive.pushData(stats[props.domain].active);
-	chartDelayed.pushData(stats[props.domain].delayed);
-	chartWaiting.pushData(stats[props.domain].waiting);
+	chartProcess.value.pushData(stats[props.domain].activeSincePrevTick);
+	chartActive.value.pushData(stats[props.domain].active);
+	chartDelayed.value.pushData(stats[props.domain].delayed);
+	chartWaiting.value.pushData(stats[props.domain].waiting);
 };
 
 const onStatsLog = (statsLog) => {
@@ -97,10 +97,10 @@ const onStatsLog = (statsLog) => {
 		dataWaiting.push(stats[props.domain].waiting);
 	}
 
-	chartProcess.setData(dataProcess);
-	chartActive.setData(dataActive);
-	chartDelayed.setData(dataDelayed);
-	chartWaiting.setData(dataWaiting);
+	chartProcess.value.setData(dataProcess);
+	chartActive.value.setData(dataActive);
+	chartDelayed.value.setData(dataDelayed);
+	chartWaiting.value.setData(dataWaiting);
 };
 
 onMounted(() => {
diff --git a/packages/frontend/src/pages/admin/queue.vue b/packages/frontend/src/pages/admin/queue.vue
index ece54ab12b..f07fba8d15 100644
--- a/packages/frontend/src/pages/admin/queue.vue
+++ b/packages/frontend/src/pages/admin/queue.vue
@@ -16,6 +16,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref, computed } from 'vue';
 import XQueue from './queue.chart.vue';
 import XHeader from './_header_.vue';
 import * as os from '@/os.js';
@@ -24,7 +25,7 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 
-let tab = $ref('deliver');
+const tab = ref('deliver');
 
 function clear() {
 	os.confirm({
@@ -46,11 +47,11 @@ function promoteAllQueues() {
 	}).then(({ canceled }) => {
 		if (canceled) return;
 
-		os.apiWithDialog('admin/queue/promote', { type: tab });
+		os.apiWithDialog('admin/queue/promote', { type: tab.value });
 	});
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-external-link',
 	text: i18n.ts.dashboard,
@@ -59,7 +60,7 @@ const headerActions = $computed(() => [{
 	},
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'deliver',
 	title: 'Deliver',
 }, {
diff --git a/packages/frontend/src/pages/admin/relays.vue b/packages/frontend/src/pages/admin/relays.vue
index 8100d8188b..b97eca33d2 100644
--- a/packages/frontend/src/pages/admin/relays.vue
+++ b/packages/frontend/src/pages/admin/relays.vue
@@ -24,14 +24,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let relays: any[] = $ref([]);
+const relays = ref<any[]>([]);
 
 async function addRelay() {
 	const { canceled, result: inbox } = await os.inputText({
@@ -67,20 +67,20 @@ function remove(inbox: string) {
 
 function refresh() {
 	os.api('admin/relays/list').then((relayList: any) => {
-		relays = relayList;
+		relays.value = relayList;
 	});
 }
 
 refresh();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-plus',
 	text: i18n.ts.addRelay,
 	handler: addRelay,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.relays,
diff --git a/packages/frontend/src/pages/admin/roles.edit.vue b/packages/frontend/src/pages/admin/roles.edit.vue
index 29726e805b..16db8403ed 100644
--- a/packages/frontend/src/pages/admin/roles.edit.vue
+++ b/packages/frontend/src/pages/admin/roles.edit.vue
@@ -22,7 +22,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import { v4 as uuid } from 'uuid';
 import XHeader from './_header_.vue';
 import XEditor from './roles.editor.vue';
@@ -39,17 +39,17 @@ const props = defineProps<{
 	id?: string;
 }>();
 
-let role = $ref(null);
-let data = $ref(null);
+const role = ref(null);
+const data = ref(null);
 
 if (props.id) {
-	role = await os.api('admin/roles/show', {
+	role.value = await os.api('admin/roles/show', {
 		roleId: props.id,
 	});
 
-	data = role;
+	data.value = role.value;
 } else {
-	data = {
+	data.value = {
 		name: 'New Role',
 		description: '',
 		isAdministrator: false,
@@ -69,24 +69,24 @@ if (props.id) {
 
 async function save() {
 	rolesCache.delete();
-	if (role) {
+	if (role.value) {
 		os.apiWithDialog('admin/roles/update', {
-			roleId: role.id,
-			...data,
+			roleId: role.value.id,
+			...data.value,
 		});
-		router.push('/admin/roles/' + role.id);
+		router.push('/admin/roles/' + role.value.id);
 	} else {
 		const created = await os.apiWithDialog('admin/roles/create', {
-			...data,
+			...data.value,
 		});
 		router.push('/admin/roles/' + created.id);
 	}
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => role ? {
-	title: i18n.ts._role.edit + ': ' + role.name,
+definePageMetadata(computed(() => role.value ? {
+	title: i18n.ts._role.edit + ': ' + role.value.name,
 	icon: 'ti ti-badge',
 } : {
 	title: i18n.ts._role.new,
diff --git a/packages/frontend/src/pages/admin/roles.editor.vue b/packages/frontend/src/pages/admin/roles.editor.vue
index 1db99e61f4..a8e0e8bbd1 100644
--- a/packages/frontend/src/pages/admin/roles.editor.vue
+++ b/packages/frontend/src/pages/admin/roles.editor.vue
@@ -278,7 +278,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</MkRange>
 				</div>
 			</MkFolder>
-			
+
 			<MkFolder v-if="matchQuery([i18n.ts._role._options.canSearchNotes, 'canSearchNotes'])">
 				<template #label>{{ i18n.ts._role._options.canSearchNotes }}</template>
 				<template #suffix>
@@ -537,7 +537,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref, computed } from 'vue';
 import { throttle } from 'throttle-debounce';
 import RolesEditorFormula from './RolesEditorFormula.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -562,12 +562,12 @@ const props = defineProps<{
 	readonly?: boolean;
 }>();
 
-let role = $ref(deepClone(props.modelValue));
+const role = ref(deepClone(props.modelValue));
 
 // fill missing policy
 for (const ROLE_POLICY of ROLE_POLICIES) {
-	if (role.policies[ROLE_POLICY] == null) {
-		role.policies[ROLE_POLICY] = {
+	if (role.value.policies[ROLE_POLICY] == null) {
+		role.value.policies[ROLE_POLICY] = {
 			useDefault: true,
 			priority: 0,
 			value: instance.policies[ROLE_POLICY],
@@ -575,15 +575,15 @@ for (const ROLE_POLICY of ROLE_POLICIES) {
 	}
 }
 
-let rolePermission = $computed({
-	get: () => role.isAdministrator ? 'administrator' : role.isModerator ? 'moderator' : 'normal',
+const rolePermission = computed({
+	get: () => role.value.isAdministrator ? 'administrator' : role.value.isModerator ? 'moderator' : 'normal',
 	set: (val) => {
-		role.isAdministrator = val === 'administrator';
-		role.isModerator = val === 'moderator';
+		role.value.isAdministrator = val === 'administrator';
+		role.value.isModerator = val === 'moderator';
 	},
 });
 
-let q = $ref('');
+const q = ref('');
 
 function getPriorityIcon(option) {
 	if (option.priority === 2) return 'ti ti-arrows-up';
@@ -592,32 +592,32 @@ function getPriorityIcon(option) {
 }
 
 function matchQuery(keywords: string[]): boolean {
-	if (q.trim().length === 0) return true;
-	return keywords.some(keyword => keyword.toLowerCase().includes(q.toLowerCase()));
+	if (q.value.trim().length === 0) return true;
+	return keywords.some(keyword => keyword.toLowerCase().includes(q.value.toLowerCase()));
 }
 
 const save = throttle(100, () => {
 	const data = {
-		name: role.name,
-		description: role.description,
-		color: role.color === '' ? null : role.color,
-		iconUrl: role.iconUrl === '' ? null : role.iconUrl,
-		displayOrder: role.displayOrder,
-		target: role.target,
-		condFormula: role.condFormula,
-		isAdministrator: role.isAdministrator,
-		isModerator: role.isModerator,
-		isPublic: role.isPublic,
-		isExplorable: role.isExplorable,
-		asBadge: role.asBadge,
-		canEditMembersByModerator: role.canEditMembersByModerator,
-		policies: role.policies,
+		name: role.value.name,
+		description: role.value.description,
+		color: role.value.color === '' ? null : role.value.color,
+		iconUrl: role.value.iconUrl === '' ? null : role.value.iconUrl,
+		displayOrder: role.value.displayOrder,
+		target: role.value.target,
+		condFormula: role.value.condFormula,
+		isAdministrator: role.value.isAdministrator,
+		isModerator: role.value.isModerator,
+		isPublic: role.value.isPublic,
+		isExplorable: role.value.isExplorable,
+		asBadge: role.value.asBadge,
+		canEditMembersByModerator: role.value.canEditMembersByModerator,
+		policies: role.value.policies,
 	};
 
 	emit('update:modelValue', data);
 });
 
-watch($$(role), save, { deep: true });
+watch(role, save, { deep: true });
 </script>
 
 <style lang="scss" module>
diff --git a/packages/frontend/src/pages/admin/roles.role.vue b/packages/frontend/src/pages/admin/roles.role.vue
index 0b02f419bc..c11cc24b4f 100644
--- a/packages/frontend/src/pages/admin/roles.role.vue
+++ b/packages/frontend/src/pages/admin/roles.role.vue
@@ -62,7 +62,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, reactive } from 'vue';
+import { computed, reactive, ref } from 'vue';
 import XHeader from './_header_.vue';
 import XEditor from './roles.editor.vue';
 import MkFolder from '@/components/MkFolder.vue';
@@ -90,7 +90,7 @@ const usersPagination = {
 	})),
 };
 
-let expandedItems = $ref([]);
+const expandedItems = ref([]);
 
 const role = reactive(await os.api('admin/roles/show', {
 	roleId: props.id,
@@ -160,16 +160,16 @@ async function unassign(user, ev) {
 }
 
 async function toggleItem(item) {
-	if (expandedItems.includes(item.id)) {
-		expandedItems = expandedItems.filter(x => x !== item.id);
+	if (expandedItems.value.includes(item.id)) {
+		expandedItems.value = expandedItems.value.filter(x => x !== item.id);
 	} else {
-		expandedItems.push(item.id);
+		expandedItems.value.push(item.id);
 	}
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.role + ': ' + role.name,
diff --git a/packages/frontend/src/pages/admin/roles.vue b/packages/frontend/src/pages/admin/roles.vue
index 91cd86485f..db4595b150 100644
--- a/packages/frontend/src/pages/admin/roles.vue
+++ b/packages/frontend/src/pages/admin/roles.vue
@@ -258,9 +258,9 @@ function create() {
 	router.push('/admin/roles/new');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.roles,
diff --git a/packages/frontend/src/pages/admin/security.vue b/packages/frontend/src/pages/admin/security.vue
index f7f76d910a..9835591fa8 100644
--- a/packages/frontend/src/pages/admin/security.vue
+++ b/packages/frontend/src/pages/admin/security.vue
@@ -114,7 +114,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XBotProtection from './bot-protection.vue';
 import XHeader from './_header_.vue';
 import MkFolder from '@/components/MkFolder.vue';
@@ -129,65 +129,65 @@ import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let summalyProxy: string = $ref('');
-let enableHcaptcha: boolean = $ref(false);
-let enableRecaptcha: boolean = $ref(false);
-let enableTurnstile: boolean = $ref(false);
-let sensitiveMediaDetection: string = $ref('none');
-let sensitiveMediaDetectionSensitivity: number = $ref(0);
-let setSensitiveFlagAutomatically: boolean = $ref(false);
-let enableSensitiveMediaDetectionForVideos: boolean = $ref(false);
-let enableIpLogging: boolean = $ref(false);
-let enableActiveEmailValidation: boolean = $ref(false);
-let enableVerifymailApi: boolean = $ref(false);
-let verifymailAuthKey: string | null = $ref(null);
+const summalyProxy = ref<string>('');
+const enableHcaptcha = ref<boolean>(false);
+const enableRecaptcha = ref<boolean>(false);
+const enableTurnstile = ref<boolean>(false);
+const sensitiveMediaDetection = ref<string>('none');
+const sensitiveMediaDetectionSensitivity = ref<number>(0);
+const setSensitiveFlagAutomatically = ref<boolean>(false);
+const enableSensitiveMediaDetectionForVideos = ref<boolean>(false);
+const enableIpLogging = ref<boolean>(false);
+const enableActiveEmailValidation = ref<boolean>(false);
+const enableVerifymailApi = ref<boolean>(false);
+const verifymailAuthKey = ref<string | null>(null);
 
 async function init() {
 	const meta = await os.api('admin/meta');
-	summalyProxy = meta.summalyProxy;
-	enableHcaptcha = meta.enableHcaptcha;
-	enableRecaptcha = meta.enableRecaptcha;
-	enableTurnstile = meta.enableTurnstile;
-	sensitiveMediaDetection = meta.sensitiveMediaDetection;
-	sensitiveMediaDetectionSensitivity =
+	summalyProxy.value = meta.summalyProxy;
+	enableHcaptcha.value = meta.enableHcaptcha;
+	enableRecaptcha.value = meta.enableRecaptcha;
+	enableTurnstile.value = meta.enableTurnstile;
+	sensitiveMediaDetection.value = meta.sensitiveMediaDetection;
+	sensitiveMediaDetectionSensitivity.value =
 		meta.sensitiveMediaDetectionSensitivity === 'veryLow' ? 0 :
 		meta.sensitiveMediaDetectionSensitivity === 'low' ? 1 :
 		meta.sensitiveMediaDetectionSensitivity === 'medium' ? 2 :
 		meta.sensitiveMediaDetectionSensitivity === 'high' ? 3 :
 		meta.sensitiveMediaDetectionSensitivity === 'veryHigh' ? 4 : 0;
-	setSensitiveFlagAutomatically = meta.setSensitiveFlagAutomatically;
-	enableSensitiveMediaDetectionForVideos = meta.enableSensitiveMediaDetectionForVideos;
-	enableIpLogging = meta.enableIpLogging;
-	enableActiveEmailValidation = meta.enableActiveEmailValidation;
-	enableVerifymailApi = meta.enableVerifymailApi;
-	verifymailAuthKey = meta.verifymailAuthKey;
+	setSensitiveFlagAutomatically.value = meta.setSensitiveFlagAutomatically;
+	enableSensitiveMediaDetectionForVideos.value = meta.enableSensitiveMediaDetectionForVideos;
+	enableIpLogging.value = meta.enableIpLogging;
+	enableActiveEmailValidation.value = meta.enableActiveEmailValidation;
+	enableVerifymailApi.value = meta.enableVerifymailApi;
+	verifymailAuthKey.value = meta.verifymailAuthKey;
 }
 
 function save() {
 	os.apiWithDialog('admin/update-meta', {
-		summalyProxy,
-		sensitiveMediaDetection,
+		summalyProxy: summalyProxy.value,
+		sensitiveMediaDetection: sensitiveMediaDetection.value,
 		sensitiveMediaDetectionSensitivity:
-			sensitiveMediaDetectionSensitivity === 0 ? 'veryLow' :
-			sensitiveMediaDetectionSensitivity === 1 ? 'low' :
-			sensitiveMediaDetectionSensitivity === 2 ? 'medium' :
-			sensitiveMediaDetectionSensitivity === 3 ? 'high' :
-			sensitiveMediaDetectionSensitivity === 4 ? 'veryHigh' :
+			sensitiveMediaDetectionSensitivity.value === 0 ? 'veryLow' :
+			sensitiveMediaDetectionSensitivity.value === 1 ? 'low' :
+			sensitiveMediaDetectionSensitivity.value === 2 ? 'medium' :
+			sensitiveMediaDetectionSensitivity.value === 3 ? 'high' :
+			sensitiveMediaDetectionSensitivity.value === 4 ? 'veryHigh' :
 			0,
-		setSensitiveFlagAutomatically,
-		enableSensitiveMediaDetectionForVideos,
-		enableIpLogging,
-		enableActiveEmailValidation,
-		enableVerifymailApi,
-		verifymailAuthKey,
+		setSensitiveFlagAutomatically: setSensitiveFlagAutomatically.value,
+		enableSensitiveMediaDetectionForVideos: enableSensitiveMediaDetectionForVideos.value,
+		enableIpLogging: enableIpLogging.value,
+		enableActiveEmailValidation: enableActiveEmailValidation.value,
+		enableVerifymailApi: enableVerifymailApi.value,
+		verifymailAuthKey: verifymailAuthKey.value,
 	}).then(() => {
 		fetchInstance();
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.security,
diff --git a/packages/frontend/src/pages/admin/server-rules.vue b/packages/frontend/src/pages/admin/server-rules.vue
index 4cd1f6cbec..231f4ba56f 100644
--- a/packages/frontend/src/pages/admin/server-rules.vue
+++ b/packages/frontend/src/pages/admin/server-rules.vue
@@ -41,7 +41,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent } from 'vue';
+import { defineAsyncComponent, ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import * as os from '@/os.js';
 import { fetchInstance, instance } from '@/instance.js';
@@ -52,20 +52,20 @@ import MkInput from '@/components/MkInput.vue';
 
 const Sortable = defineAsyncComponent(() => import('vuedraggable').then(x => x.default));
 
-let serverRules: string[] = $ref(instance.serverRules);
+const serverRules = ref<string[]>(instance.serverRules);
 
 const save = async () => {
 	await os.apiWithDialog('admin/update-meta', {
-		serverRules,
+		serverRules: serverRules.value,
 	});
 	fetchInstance();
 };
 
 const remove = (index: number): void => {
-	serverRules.splice(index, 1);
+	serverRules.value.splice(index, 1);
 };
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.serverRules,
diff --git a/packages/frontend/src/pages/admin/settings.vue b/packages/frontend/src/pages/admin/settings.vue
index 86fbfa0827..f17284efa9 100644
--- a/packages/frontend/src/pages/admin/settings.vue
+++ b/packages/frontend/src/pages/admin/settings.vue
@@ -148,7 +148,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XHeader from './_header_.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -163,76 +163,76 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 
-let name: string | null = $ref(null);
-let shortName: string | null = $ref(null);
-let description: string | null = $ref(null);
-let maintainerName: string | null = $ref(null);
-let maintainerEmail: string | null = $ref(null);
-let impressumUrl: string | null = $ref(null);
-let pinnedUsers: string = $ref('');
-let cacheRemoteFiles: boolean = $ref(false);
-let cacheRemoteSensitiveFiles: boolean = $ref(false);
-let enableServiceWorker: boolean = $ref(false);
-let swPublicKey: any = $ref(null);
-let swPrivateKey: any = $ref(null);
-let enableFanoutTimeline: boolean = $ref(false);
-let enableFanoutTimelineDbFallback: boolean = $ref(false);
-let perLocalUserUserTimelineCacheMax: number = $ref(0);
-let perRemoteUserUserTimelineCacheMax: number = $ref(0);
-let perUserHomeTimelineCacheMax: number = $ref(0);
-let perUserListTimelineCacheMax: number = $ref(0);
-let notesPerOneAd: number = $ref(0);
+const name = ref<string | null>(null);
+const shortName = ref<string | null>(null);
+const description = ref<string | null>(null);
+const maintainerName = ref<string | null>(null);
+const maintainerEmail = ref<string | null>(null);
+const impressumUrl = ref<string | null>(null);
+const pinnedUsers = ref<string>('');
+const cacheRemoteFiles = ref<boolean>(false);
+const cacheRemoteSensitiveFiles = ref<boolean>(false);
+const enableServiceWorker = ref<boolean>(false);
+const swPublicKey = ref<any>(null);
+const swPrivateKey = ref<any>(null);
+const enableFanoutTimeline = ref<boolean>(false);
+const enableFanoutTimelineDbFallback = ref<boolean>(false);
+const perLocalUserUserTimelineCacheMax = ref<number>(0);
+const perRemoteUserUserTimelineCacheMax = ref<number>(0);
+const perUserHomeTimelineCacheMax = ref<number>(0);
+const perUserListTimelineCacheMax = ref<number>(0);
+const notesPerOneAd = ref<number>(0);
 
 async function init(): Promise<void> {
 	const meta = await os.api('admin/meta');
-	name = meta.name;
-	shortName = meta.shortName;
-	description = meta.description;
-	maintainerName = meta.maintainerName;
-	maintainerEmail = meta.maintainerEmail;
-	impressumUrl = meta.impressumUrl;
-	pinnedUsers = meta.pinnedUsers.join('\n');
-	cacheRemoteFiles = meta.cacheRemoteFiles;
-	cacheRemoteSensitiveFiles = meta.cacheRemoteSensitiveFiles;
-	enableServiceWorker = meta.enableServiceWorker;
-	swPublicKey = meta.swPublickey;
-	swPrivateKey = meta.swPrivateKey;
-	enableFanoutTimeline = meta.enableFanoutTimeline;
-	enableFanoutTimelineDbFallback = meta.enableFanoutTimelineDbFallback;
-	perLocalUserUserTimelineCacheMax = meta.perLocalUserUserTimelineCacheMax;
-	perRemoteUserUserTimelineCacheMax = meta.perRemoteUserUserTimelineCacheMax;
-	perUserHomeTimelineCacheMax = meta.perUserHomeTimelineCacheMax;
-	perUserListTimelineCacheMax = meta.perUserListTimelineCacheMax;
-	notesPerOneAd = meta.notesPerOneAd;
+	name.value = meta.name;
+	shortName.value = meta.shortName;
+	description.value = meta.description;
+	maintainerName.value = meta.maintainerName;
+	maintainerEmail.value = meta.maintainerEmail;
+	impressumUrl.value = meta.impressumUrl;
+	pinnedUsers.value = meta.pinnedUsers.join('\n');
+	cacheRemoteFiles.value = meta.cacheRemoteFiles;
+	cacheRemoteSensitiveFiles.value = meta.cacheRemoteSensitiveFiles;
+	enableServiceWorker.value = meta.enableServiceWorker;
+	swPublicKey.value = meta.swPublickey;
+	swPrivateKey.value = meta.swPrivateKey;
+	enableFanoutTimeline.value = meta.enableFanoutTimeline;
+	enableFanoutTimelineDbFallback.value = meta.enableFanoutTimelineDbFallback;
+	perLocalUserUserTimelineCacheMax.value = meta.perLocalUserUserTimelineCacheMax;
+	perRemoteUserUserTimelineCacheMax.value = meta.perRemoteUserUserTimelineCacheMax;
+	perUserHomeTimelineCacheMax.value = meta.perUserHomeTimelineCacheMax;
+	perUserListTimelineCacheMax.value = meta.perUserListTimelineCacheMax;
+	notesPerOneAd.value = meta.notesPerOneAd;
 }
 
 async function save(): void {
 	await os.apiWithDialog('admin/update-meta', {
-		name,
-		shortName: shortName === '' ? null : shortName,
-		description,
-		maintainerName,
-		maintainerEmail,
-		impressumUrl,
-		pinnedUsers: pinnedUsers.split('\n'),
-		cacheRemoteFiles,
-		cacheRemoteSensitiveFiles,
-		enableServiceWorker,
-		swPublicKey,
-		swPrivateKey,
-		enableFanoutTimeline,
-		enableFanoutTimelineDbFallback,
-		perLocalUserUserTimelineCacheMax,
-		perRemoteUserUserTimelineCacheMax,
-		perUserHomeTimelineCacheMax,
-		perUserListTimelineCacheMax,
-		notesPerOneAd,
+		name: name.value,
+		shortName: shortName.value === '' ? null : shortName.value,
+		description: description.value,
+		maintainerName: maintainerName.value,
+		maintainerEmail: maintainerEmail.value,
+		impressumUrl: impressumUrl.value,
+		pinnedUsers: pinnedUsers.value.split('\n'),
+		cacheRemoteFiles: cacheRemoteFiles.value,
+		cacheRemoteSensitiveFiles: cacheRemoteSensitiveFiles.value,
+		enableServiceWorker: enableServiceWorker.value,
+		swPublicKey: swPublicKey.value,
+		swPrivateKey: swPrivateKey.value,
+		enableFanoutTimeline: enableFanoutTimeline.value,
+		enableFanoutTimelineDbFallback: enableFanoutTimelineDbFallback.value,
+		perLocalUserUserTimelineCacheMax: perLocalUserUserTimelineCacheMax.value,
+		perRemoteUserUserTimelineCacheMax: perRemoteUserUserTimelineCacheMax.value,
+		perUserHomeTimelineCacheMax: perUserHomeTimelineCacheMax.value,
+		perUserListTimelineCacheMax: perUserListTimelineCacheMax.value,
+		notesPerOneAd: notesPerOneAd.value,
 	});
 
 	fetchInstance();
 }
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.general,
diff --git a/packages/frontend/src/pages/admin/users.vue b/packages/frontend/src/pages/admin/users.vue
index fcf41de734..ea4c231af2 100644
--- a/packages/frontend/src/pages/admin/users.vue
+++ b/packages/frontend/src/pages/admin/users.vue
@@ -57,7 +57,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, shallowRef, ref } from 'vue';
 import XHeader from './_header_.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkSelect from '@/components/MkSelect.vue';
@@ -69,22 +69,22 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkUserCardMini from '@/components/MkUserCardMini.vue';
 import { dateString } from '@/filters/date.js';
 
-let paginationComponent = $shallowRef<InstanceType<typeof MkPagination>>();
+const paginationComponent = shallowRef<InstanceType<typeof MkPagination>>();
 
-let sort = $ref('+createdAt');
-let state = $ref('all');
-let origin = $ref('local');
-let searchUsername = $ref('');
-let searchHost = $ref('');
+const sort = ref('+createdAt');
+const state = ref('all');
+const origin = ref('local');
+const searchUsername = ref('');
+const searchHost = ref('');
 const pagination = {
 	endpoint: 'admin/show-users' as const,
 	limit: 10,
 	params: computed(() => ({
-		sort: sort,
-		state: state,
-		origin: origin,
-		username: searchUsername,
-		hostname: searchHost,
+		sort: sort.value,
+		state: state.value,
+		origin: origin.value,
+		username: searchUsername.value,
+		hostname: searchHost.value,
 	})),
 	offsetMode: true,
 };
@@ -111,7 +111,7 @@ async function addUser() {
 		username: username,
 		password: password,
 	}).then(res => {
-		paginationComponent.reload();
+		paginationComponent.value.reload();
 	});
 }
 
@@ -119,7 +119,7 @@ function show(user) {
 	os.pageWindow(`/admin/user/${user.id}`);
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-search',
 	text: i18n.ts.search,
 	handler: searchUser,
@@ -135,7 +135,7 @@ const headerActions = $computed(() => [{
 	handler: lookupUser,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.users,
diff --git a/packages/frontend/src/pages/announcements.vue b/packages/frontend/src/pages/announcements.vue
index afc6a98281..8eca403707 100644
--- a/packages/frontend/src/pages/announcements.vue
+++ b/packages/frontend/src/pages/announcements.vue
@@ -40,7 +40,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import MkPagination from '@/components/MkPagination.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -90,9 +90,9 @@ async function read(announcement) {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'current',
 	title: i18n.ts.currentAnnouncements,
 	icon: 'ti ti-flare',
diff --git a/packages/frontend/src/pages/antenna-timeline.vue b/packages/frontend/src/pages/antenna-timeline.vue
index 4ea91796d5..3d7ecdacf6 100644
--- a/packages/frontend/src/pages/antenna-timeline.vue
+++ b/packages/frontend/src/pages/antenna-timeline.vue
@@ -24,7 +24,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref, shallowRef } from 'vue';
 import MkTimeline from '@/components/MkTimeline.vue';
 import { scroll } from '@/scripts/scroll.js';
 import * as os from '@/os.js';
@@ -38,20 +38,20 @@ const props = defineProps<{
 	antennaId: string;
 }>();
 
-let antenna = $ref(null);
-let queue = $ref(0);
-let rootEl = $shallowRef<HTMLElement>();
-let tlEl = $shallowRef<InstanceType<typeof MkTimeline>>();
-const keymap = $computed(() => ({
+const antenna = ref(null);
+const queue = ref(0);
+const rootEl = shallowRef<HTMLElement>();
+const tlEl = shallowRef<InstanceType<typeof MkTimeline>>();
+const keymap = computed(() => ({
 	't': focus,
 }));
 
 function queueUpdated(q) {
-	queue = q;
+	queue.value = q;
 }
 
 function top() {
-	scroll(rootEl, { top: 0 });
+	scroll(rootEl.value, { top: 0 });
 }
 
 async function timetravel() {
@@ -60,7 +60,7 @@ async function timetravel() {
 	});
 	if (canceled) return;
 
-	tlEl.timetravel(date);
+	tlEl.value.timetravel(date);
 }
 
 function settings() {
@@ -68,16 +68,16 @@ function settings() {
 }
 
 function focus() {
-	tlEl.focus();
+	tlEl.value.focus();
 }
 
 watch(() => props.antennaId, async () => {
-	antenna = await os.api('antennas/show', {
+	antenna.value = await os.api('antennas/show', {
 		antennaId: props.antennaId,
 	});
 }, { immediate: true });
 
-const headerActions = $computed(() => antenna ? [{
+const headerActions = computed(() => antenna.value ? [{
 	icon: 'ti ti-calendar-time',
 	text: i18n.ts.jumpToSpecifiedDate,
 	handler: timetravel,
@@ -87,10 +87,10 @@ const headerActions = $computed(() => antenna ? [{
 	handler: settings,
 }] : []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => antenna ? {
-	title: antenna.name,
+definePageMetadata(computed(() => antenna.value ? {
+	title: antenna.value.name,
 	icon: 'ti ti-antenna',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/api-console.vue b/packages/frontend/src/pages/api-console.vue
index 01657c4c2a..5374c220de 100644
--- a/packages/frontend/src/pages/api-console.vue
+++ b/packages/frontend/src/pages/api-console.vue
@@ -34,7 +34,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import JSON5 from 'json5';
 import { Endpoints } from 'misskey-js';
 import MkButton from '@/components/MkButton.vue';
@@ -83,9 +83,9 @@ function onEndpointChange() {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'API console',
diff --git a/packages/frontend/src/pages/auth.form.vue b/packages/frontend/src/pages/auth.form.vue
index 9d39a1e603..8a17e5895d 100644
--- a/packages/frontend/src/pages/auth.form.vue
+++ b/packages/frontend/src/pages/auth.form.vue
@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -35,11 +35,11 @@ const emit = defineEmits<{
 	(event: 'denied'): void;
 }>();
 
-const app = $computed(() => props.session.app);
+const app = computed(() => props.session.app);
 
-const name = $computed(() => {
+const name = computed(() => {
 	const el = document.createElement('div');
-	el.textContent = app.name;
+	el.textContent = app.value.name;
 	return el.innerHTML;
 });
 
diff --git a/packages/frontend/src/pages/auth.vue b/packages/frontend/src/pages/auth.vue
index bcd54a6ed5..1b342647fb 100644
--- a/packages/frontend/src/pages/auth.vue
+++ b/packages/frontend/src/pages/auth.vue
@@ -42,7 +42,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import XForm from './auth.form.vue';
 import MkSignin from '@/components/MkSignin.vue';
@@ -55,15 +55,15 @@ const props = defineProps<{
 	token: string;
 }>();
 
-let state = $ref<'waiting' | 'accepted' | 'fetch-session-error' | 'denied' | null>(null);
-let session = $ref<Misskey.entities.AuthSessionShowResponse | null>(null);
+const state = ref<'waiting' | 'accepted' | 'fetch-session-error' | 'denied' | null>(null);
+const session = ref<Misskey.entities.AuthSessionShowResponse | null>(null);
 
 function accepted() {
-	state = 'accepted';
-	if (session && session.app.callbackUrl) {
-		const url = new URL(session.app.callbackUrl);
+	state.value = 'accepted';
+	if (session.value && session.value.app.callbackUrl) {
+		const url = new URL(session.value.app.callbackUrl);
 		if (['javascript:', 'file:', 'data:', 'mailto:', 'tel:'].includes(url.protocol)) throw new Error('invalid url');
-		location.href = `${session.app.callbackUrl}?token=${session.token}`;
+		location.href = `${session.value.app.callbackUrl}?token=${session.value.token}`;
 	}
 }
 
@@ -75,27 +75,27 @@ onMounted(async () => {
 	if (!$i) return;
 
 	try {
-		session = await os.api('auth/session/show', {
+		session.value = await os.api('auth/session/show', {
 			token: props.token,
 		});
 
 		// 既に連携していた場合
-		if (session.app.isAuthorized) {
+		if (session.value.app.isAuthorized) {
 			await os.api('auth/accept', {
-				token: session.token,
+				token: session.value.token,
 			});
 			accepted();
 		} else {
-			state = 'waiting';
+			state.value = 'waiting';
 		}
 	} catch (err) {
-		state = 'fetch-session-error';
+		state.value = 'fetch-session-error';
 	}
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts._auth.shareAccessTitle,
diff --git a/packages/frontend/src/pages/avatar-decorations.vue b/packages/frontend/src/pages/avatar-decorations.vue
index 715f234493..b9edb18d10 100644
--- a/packages/frontend/src/pages/avatar-decorations.vue
+++ b/packages/frontend/src/pages/avatar-decorations.vue
@@ -34,7 +34,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkTextarea from '@/components/MkTextarea.vue';
@@ -46,10 +46,10 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkFolder from '@/components/MkFolder.vue';
 
-let avatarDecorations: any[] = $ref([]);
+const avatarDecorations = ref<any[]>([]);
 
 function add() {
-	avatarDecorations.unshift({
+	avatarDecorations.value.unshift({
 		_id: Math.random().toString(36),
 		id: null,
 		name: '',
@@ -64,7 +64,7 @@ function del(avatarDecoration) {
 		text: i18n.t('deleteAreYouSure', { x: avatarDecoration.name }),
 	}).then(({ canceled }) => {
 		if (canceled) return;
-		avatarDecorations = avatarDecorations.filter(x => x !== avatarDecoration);
+		avatarDecorations.value = avatarDecorations.value.filter(x => x !== avatarDecoration);
 		os.api('admin/avatar-decorations/delete', avatarDecoration);
 	});
 }
@@ -80,20 +80,20 @@ async function save(avatarDecoration) {
 
 function load() {
 	os.api('admin/avatar-decorations/list').then(_avatarDecorations => {
-		avatarDecorations = _avatarDecorations;
+		avatarDecorations.value = _avatarDecorations;
 	});
 }
 
 load();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-plus',
 	text: i18n.ts.add,
 	handler: add,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.avatarDecorations,
diff --git a/packages/frontend/src/pages/channel-editor.vue b/packages/frontend/src/pages/channel-editor.vue
index 5256ea4f11..af382bb137 100644
--- a/packages/frontend/src/pages/channel-editor.vue
+++ b/packages/frontend/src/pages/channel-editor.vue
@@ -90,22 +90,22 @@ const props = defineProps<{
 	channelId?: string;
 }>();
 
-let channel = $ref(null);
-let name = $ref(null);
-let description = $ref(null);
-let bannerUrl = $ref<string | null>(null);
-let bannerId = $ref<string | null>(null);
-let color = $ref('#000');
-let isSensitive = $ref(false);
-let allowRenoteToExternal = $ref(true);
+const channel = ref(null);
+const name = ref(null);
+const description = ref(null);
+const bannerUrl = ref<string | null>(null);
+const bannerId = ref<string | null>(null);
+const color = ref('#000');
+const isSensitive = ref(false);
+const allowRenoteToExternal = ref(true);
 const pinnedNotes = ref([]);
 
-watch(() => bannerId, async () => {
-	if (bannerId == null) {
-		bannerUrl = null;
+watch(() => bannerId.value, async () => {
+	if (bannerId.value == null) {
+		bannerUrl.value = null;
 	} else {
-		bannerUrl = (await os.api('drive/files/show', {
-			fileId: bannerId,
+		bannerUrl.value = (await os.api('drive/files/show', {
+			fileId: bannerId.value,
 		})).url;
 	}
 });
@@ -113,20 +113,20 @@ watch(() => bannerId, async () => {
 async function fetchChannel() {
 	if (props.channelId == null) return;
 
-	channel = await os.api('channels/show', {
+	channel.value = await os.api('channels/show', {
 		channelId: props.channelId,
 	});
 
-	name = channel.name;
-	description = channel.description;
-	bannerId = channel.bannerId;
-	bannerUrl = channel.bannerUrl;
-	isSensitive = channel.isSensitive;
-	pinnedNotes.value = channel.pinnedNoteIds.map(id => ({
+	name.value = channel.value.name;
+	description.value = channel.value.description;
+	bannerId.value = channel.value.bannerId;
+	bannerUrl.value = channel.value.bannerUrl;
+	isSensitive.value = channel.value.isSensitive;
+	pinnedNotes.value = channel.value.pinnedNoteIds.map(id => ({
 		id,
 	}));
-	color = channel.color;
-	allowRenoteToExternal = channel.allowRenoteToExternal;
+	color.value = channel.value.color;
+	allowRenoteToExternal.value = channel.value.allowRenoteToExternal;
 }
 
 fetchChannel();
@@ -150,13 +150,13 @@ function removePinnedNote(index: number) {
 
 function save() {
 	const params = {
-		name: name,
-		description: description,
-		bannerId: bannerId,
+		name: name.value,
+		description: description.value,
+		bannerId: bannerId.value,
 		pinnedNoteIds: pinnedNotes.value.map(x => x.id),
-		color: color,
-		isSensitive: isSensitive,
-		allowRenoteToExternal: allowRenoteToExternal,
+		color: color.value,
+		isSensitive: isSensitive.value,
+		allowRenoteToExternal: allowRenoteToExternal.value,
 	};
 
 	if (props.channelId) {
@@ -172,7 +172,7 @@ function save() {
 async function archive() {
 	const { canceled } = await os.confirm({
 		type: 'warning',
-		title: i18n.t('channelArchiveConfirmTitle', { name: name }),
+		title: i18n.t('channelArchiveConfirmTitle', { name: name.value }),
 		text: i18n.ts.channelArchiveConfirmDescription,
 	});
 
@@ -188,17 +188,17 @@ async function archive() {
 
 function setBannerImage(evt) {
 	selectFile(evt.currentTarget ?? evt.target, null).then(file => {
-		bannerId = file.id;
+		bannerId.value = file.id;
 	});
 }
 
 function removeBannerImage() {
-	bannerId = null;
+	bannerId.value = null;
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => props.channelId ? {
 	title: i18n.ts._channel.edit,
diff --git a/packages/frontend/src/pages/channel.vue b/packages/frontend/src/pages/channel.vue
index dc374e2925..698f7fa383 100644
--- a/packages/frontend/src/pages/channel.vue
+++ b/packages/frontend/src/pages/channel.vue
@@ -68,7 +68,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import MkPostForm from '@/components/MkPostForm.vue';
 import MkTimeline from '@/components/MkTimeline.vue';
 import XChannelFollowButton from '@/components/MkChannelFollowButton.vue';
@@ -96,13 +96,13 @@ const props = defineProps<{
 	channelId: string;
 }>();
 
-let tab = $ref('overview');
-let channel = $ref(null);
-let favorited = $ref(false);
-let searchQuery = $ref('');
-let searchPagination = $ref();
-let searchKey = $ref('');
-const featuredPagination = $computed(() => ({
+const tab = ref('overview');
+const channel = ref(null);
+const favorited = ref(false);
+const searchQuery = ref('');
+const searchPagination = ref();
+const searchKey = ref('');
+const featuredPagination = computed(() => ({
 	endpoint: 'notes/featured' as const,
 	limit: 10,
 	params: {
@@ -111,30 +111,30 @@ const featuredPagination = $computed(() => ({
 }));
 
 watch(() => props.channelId, async () => {
-	channel = await os.api('channels/show', {
+	channel.value = await os.api('channels/show', {
 		channelId: props.channelId,
 	});
-	favorited = channel.isFavorited;
-	if (favorited || channel.isFollowing) {
-		tab = 'timeline';
+	favorited.value = channel.value.isFavorited;
+	if (favorited.value || channel.value.isFollowing) {
+		tab.value = 'timeline';
 	}
 }, { immediate: true });
 
 function edit() {
-	router.push(`/channels/${channel.id}/edit`);
+	router.push(`/channels/${channel.value.id}/edit`);
 }
 
 function openPostForm() {
 	os.post({
-		channel,
+		channel: channel.value,
 	});
 }
 
 function favorite() {
 	os.apiWithDialog('channels/favorite', {
-		channelId: channel.id,
+		channelId: channel.value.id,
 	}).then(() => {
-		favorited = true;
+		favorited.value = true;
 	});
 }
 
@@ -145,38 +145,38 @@ async function unfavorite() {
 	});
 	if (confirm.canceled) return;
 	os.apiWithDialog('channels/unfavorite', {
-		channelId: channel.id,
+		channelId: channel.value.id,
 	}).then(() => {
-		favorited = false;
+		favorited.value = false;
 	});
 }
 
 async function search() {
-	const query = searchQuery.toString().trim();
+	const query = searchQuery.value.toString().trim();
 
 	if (query == null) return;
 
-	searchPagination = {
+	searchPagination.value = {
 		endpoint: 'notes/search',
 		limit: 10,
 		params: {
 			query: query,
-			channelId: channel.id,
+			channelId: channel.value.id,
 		},
 	};
 
-	searchKey = query;
+	searchKey.value = query;
 }
 
-const headerActions = $computed(() => {
-	if (channel && channel.userId) {
+const headerActions = computed(() => {
+	if (channel.value && channel.value.userId) {
 		const headerItems: PageHeaderItem[] = [];
 
 		headerItems.push({
 			icon: 'ti ti-link',
 			text: i18n.ts.copyUrl,
 			handler: async (): Promise<void> => {
-				copyToClipboard(`${url}/channels/${channel.id}`);
+				copyToClipboard(`${url}/channels/${channel.value.id}`);
 				os.success();
 			},
 		});
@@ -187,15 +187,15 @@ const headerActions = $computed(() => {
 				text: i18n.ts.share,
 				handler: async (): Promise<void> => {
 					navigator.share({
-						title: channel.name,
-						text: channel.description,
-						url: `${url}/channels/${channel.id}`,
+						title: channel.value.name,
+						text: channel.value.description,
+						url: `${url}/channels/${channel.value.id}`,
 					});
 				},
 			});
 		}
 
-		if (($i && $i.id === channel.userId) || iAmModerator) {
+		if (($i && $i.id === channel.value.userId) || iAmModerator) {
 			headerItems.push({
 				icon: 'ti ti-settings',
 				text: i18n.ts.edit,
@@ -209,7 +209,7 @@ const headerActions = $computed(() => {
 	}
 });
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'overview',
 	title: i18n.ts.overview,
 	icon: 'ti ti-info-circle',
@@ -227,8 +227,8 @@ const headerTabs = $computed(() => [{
 	icon: 'ti ti-search',
 }]);
 
-definePageMetadata(computed(() => channel ? {
-	title: channel.name,
+definePageMetadata(computed(() => channel.value ? {
+	title: channel.value.name,
 	icon: 'ti ti-device-tv',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/channels.vue b/packages/frontend/src/pages/channels.vue
index 8219a947f2..e58c89bb77 100644
--- a/packages/frontend/src/pages/channels.vue
+++ b/packages/frontend/src/pages/channels.vue
@@ -50,7 +50,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted } from 'vue';
+import { computed, onMounted, ref } from 'vue';
 import MkChannelPreview from '@/components/MkChannelPreview.vue';
 import MkChannelList from '@/components/MkChannelList.vue';
 import MkPagination from '@/components/MkPagination.vue';
@@ -69,15 +69,15 @@ const props = defineProps<{
 	type?: string;
 }>();
 
-let key = $ref('');
-let tab = $ref('featured');
-let searchQuery = $ref('');
-let searchType = $ref('nameAndDescription');
-let channelPagination = $ref();
+const key = ref('');
+const tab = ref('featured');
+const searchQuery = ref('');
+const searchType = ref('nameAndDescription');
+const channelPagination = ref();
 
 onMounted(() => {
-	searchQuery = props.query ?? '';
-	searchType = props.type ?? 'nameAndDescription';
+	searchQuery.value = props.query ?? '';
+	searchType.value = props.type ?? 'nameAndDescription';
 });
 
 const featuredPagination = {
@@ -99,35 +99,35 @@ const ownedPagination = {
 };
 
 async function search() {
-	const query = searchQuery.toString().trim();
+	const query = searchQuery.value.toString().trim();
 
 	if (query == null) return;
 
-	const type = searchType.toString().trim();
+	const type = searchType.value.toString().trim();
 
-	channelPagination = {
+	channelPagination.value = {
 		endpoint: 'channels/search',
 		limit: 10,
 		params: {
-			query: searchQuery,
+			query: searchQuery.value,
 			type: type,
 		},
 	};
 
-	key = query + type;
+	key.value = query + type;
 }
 
 function create() {
 	router.push('/channels/new');
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-plus',
 	text: i18n.ts.create,
 	handler: create,
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'search',
 	title: i18n.ts.search,
 	icon: 'ti ti-search',
diff --git a/packages/frontend/src/pages/clip.vue b/packages/frontend/src/pages/clip.vue
index b32c8a3864..2ea0312c7e 100644
--- a/packages/frontend/src/pages/clip.vue
+++ b/packages/frontend/src/pages/clip.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch, provide } from 'vue';
+import { computed, watch, provide, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkNotes from '@/components/MkNotes.vue';
 import { $i } from '@/account.js';
@@ -43,8 +43,8 @@ const props = defineProps<{
 	clipId: string,
 }>();
 
-let clip: Misskey.entities.Clip = $ref<Misskey.entities.Clip>();
-let favorited = $ref(false);
+const clip = ref<Misskey.entities.Clip | null>(null);
+const favorited = ref(false);
 const pagination = {
 	endpoint: 'clips/notes' as const,
 	limit: 10,
@@ -53,24 +53,24 @@ const pagination = {
 	})),
 };
 
-const isOwned: boolean | null = $computed<boolean | null>(() => $i && clip && ($i.id === clip.userId));
+const isOwned = computed<boolean | null>(() => $i && clip.value && ($i.id === clip.value.userId));
 
 watch(() => props.clipId, async () => {
-	clip = await os.api('clips/show', {
+	clip.value = await os.api('clips/show', {
 		clipId: props.clipId,
 	});
-	favorited = clip.isFavorited;
+	favorited.value = clip.value.isFavorited;
 }, {
 	immediate: true,
 });
 
-provide('currentClip', $$(clip));
+provide('currentClip', clip);
 
 function favorite() {
 	os.apiWithDialog('clips/favorite', {
 		clipId: props.clipId,
 	}).then(() => {
-		favorited = true;
+		favorited.value = true;
 	});
 }
 
@@ -83,57 +83,57 @@ async function unfavorite() {
 	os.apiWithDialog('clips/unfavorite', {
 		clipId: props.clipId,
 	}).then(() => {
-		favorited = false;
+		favorited.value = false;
 	});
 }
 
-const headerActions = $computed(() => clip && isOwned ? [{
+const headerActions = computed(() => clip.value && isOwned.value ? [{
 	icon: 'ti ti-pencil',
 	text: i18n.ts.edit,
 	handler: async (): Promise<void> => {
-		const { canceled, result } = await os.form(clip.name, {
+		const { canceled, result } = await os.form(clip.value.name, {
 			name: {
 				type: 'string',
 				label: i18n.ts.name,
-				default: clip.name,
+				default: clip.value.name,
 			},
 			description: {
 				type: 'string',
 				required: false,
 				multiline: true,
 				label: i18n.ts.description,
-				default: clip.description,
+				default: clip.value.description,
 			},
 			isPublic: {
 				type: 'boolean',
 				label: i18n.ts.public,
-				default: clip.isPublic,
+				default: clip.value.isPublic,
 			},
 		});
 		if (canceled) return;
 
 		os.apiWithDialog('clips/update', {
-			clipId: clip.id,
+			clipId: clip.value.id,
 			...result,
 		});
 
 		clipsCache.delete();
 	},
-}, ...(clip.isPublic ? [{
+}, ...(clip.value.isPublic ? [{
 	icon: 'ti ti-link',
 	text: i18n.ts.copyUrl,
 	handler: async (): Promise<void> => {
-		copyToClipboard(`${url}/clips/${clip.id}`);
+		copyToClipboard(`${url}/clips/${clip.value.id}`);
 		os.success();
 	},
-}] : []), ...(clip.isPublic && isSupportShare() ? [{
+}] : []), ...(clip.value.isPublic && isSupportShare() ? [{
 	icon: 'ti ti-share',
 	text: i18n.ts.share,
 	handler: async (): Promise<void> => {
 		navigator.share({
-			title: clip.name,
-			text: clip.description,
-			url: `${url}/clips/${clip.id}`,
+			title: clip.value.name,
+			text: clip.value.description,
+			url: `${url}/clips/${clip.value.id}`,
 		});
 	},
 }] : []), {
@@ -143,20 +143,20 @@ const headerActions = $computed(() => clip && isOwned ? [{
 	handler: async (): Promise<void> => {
 		const { canceled } = await os.confirm({
 			type: 'warning',
-			text: i18n.t('deleteAreYouSure', { x: clip.name }),
+			text: i18n.t('deleteAreYouSure', { x: clip.value.name }),
 		});
 		if (canceled) return;
 
 		await os.apiWithDialog('clips/delete', {
-			clipId: clip.id,
+			clipId: clip.value.id,
 		});
 
 		clipsCache.delete();
 	},
 }] : null);
 
-definePageMetadata(computed(() => clip ? {
-	title: clip.name,
+definePageMetadata(computed(() => clip.value ? {
+	title: clip.value.name,
 	icon: 'ti ti-paperclip',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/custom-emojis-manager.vue b/packages/frontend/src/pages/custom-emojis-manager.vue
index 316dbaa3aa..fa92424fa0 100644
--- a/packages/frontend/src/pages/custom-emojis-manager.vue
+++ b/packages/frontend/src/pages/custom-emojis-manager.vue
@@ -286,7 +286,7 @@ const delBulk = async () => {
 	emojisPaginationComponent.value.reload();
 };
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-plus',
 	text: i18n.ts.addEmoji,
@@ -296,7 +296,7 @@ const headerActions = $computed(() => [{
 	handler: menu,
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'local',
 	title: i18n.ts.local,
 }, {
diff --git a/packages/frontend/src/pages/drive.vue b/packages/frontend/src/pages/drive.vue
index 54fb83fc1d..64fbd16971 100644
--- a/packages/frontend/src/pages/drive.vue
+++ b/packages/frontend/src/pages/drive.vue
@@ -10,19 +10,19 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import XDrive from '@/components/MkDrive.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let folder = $ref(null);
+const folder = ref(null);
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
-	title: folder ? folder.name : i18n.ts.drive,
+	title: folder.value ? folder.value.name : i18n.ts.drive,
 	icon: 'ti ti-cloud',
 	hideHeader: true,
 })));
diff --git a/packages/frontend/src/pages/emoji-edit-dialog.vue b/packages/frontend/src/pages/emoji-edit-dialog.vue
index 5bce74aa94..8119150df9 100644
--- a/packages/frontend/src/pages/emoji-edit-dialog.vue
+++ b/packages/frontend/src/pages/emoji-edit-dialog.vue
@@ -74,7 +74,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkModalWindow from '@/components/MkModalWindow.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -92,22 +92,22 @@ const props = defineProps<{
 	emoji?: any,
 }>();
 
-let dialog = $ref(null);
-let name: string = $ref(props.emoji ? props.emoji.name : '');
-let category: string = $ref(props.emoji ? props.emoji.category : '');
-let aliases: string = $ref(props.emoji ? props.emoji.aliases.join(' ') : '');
-let license: string = $ref(props.emoji ? (props.emoji.license ?? '') : '');
-let isSensitive = $ref(props.emoji ? props.emoji.isSensitive : false);
-let localOnly = $ref(props.emoji ? props.emoji.localOnly : false);
-let roleIdsThatCanBeUsedThisEmojiAsReaction = $ref(props.emoji ? props.emoji.roleIdsThatCanBeUsedThisEmojiAsReaction : []);
-let rolesThatCanBeUsedThisEmojiAsReaction = $ref([]);
-let file = $ref<Misskey.entities.DriveFile>();
+const dialog = ref(null);
+const name = ref<string>(props.emoji ? props.emoji.name : '');
+const category = ref<string>(props.emoji ? props.emoji.category : '');
+const aliases = ref<string>(props.emoji ? props.emoji.aliases.join(' ') : '');
+const license = ref<string>(props.emoji ? (props.emoji.license ?? '') : '');
+const isSensitive = ref(props.emoji ? props.emoji.isSensitive : false);
+const localOnly = ref(props.emoji ? props.emoji.localOnly : false);
+const roleIdsThatCanBeUsedThisEmojiAsReaction = ref(props.emoji ? props.emoji.roleIdsThatCanBeUsedThisEmojiAsReaction : []);
+const rolesThatCanBeUsedThisEmojiAsReaction = ref([]);
+const file = ref<Misskey.entities.DriveFile>();
 
-watch($$(roleIdsThatCanBeUsedThisEmojiAsReaction), async () => {
-	rolesThatCanBeUsedThisEmojiAsReaction = (await Promise.all(roleIdsThatCanBeUsedThisEmojiAsReaction.map((id) => os.api('admin/roles/show', { roleId: id }).catch(() => null)))).filter(x => x != null);
+watch(roleIdsThatCanBeUsedThisEmojiAsReaction, async () => {
+	rolesThatCanBeUsedThisEmojiAsReaction.value = (await Promise.all(roleIdsThatCanBeUsedThisEmojiAsReaction.value.map((id) => os.api('admin/roles/show', { roleId: id }).catch(() => null)))).filter(x => x != null);
 }, { immediate: true });
 
-const imgUrl = computed(() => file ? file.url : props.emoji ? `/emoji/${props.emoji.name}.webp` : null);
+const imgUrl = computed(() => file.value ? file.value.url : props.emoji ? `/emoji/${props.emoji.name}.webp` : null);
 
 const emit = defineEmits<{
 	(ev: 'done', v: { deleted?: boolean; updated?: any; created?: any }): void,
@@ -115,42 +115,42 @@ const emit = defineEmits<{
 }>();
 
 async function changeImage(ev) {
-	file = await selectFile(ev.currentTarget ?? ev.target, null);
-	const candidate = file.name.replace(/\.(.+)$/, '');
+	file.value = await selectFile(ev.currentTarget ?? ev.target, null);
+	const candidate = file.value.name.replace(/\.(.+)$/, '');
 	if (candidate.match(/^[a-z0-9_]+$/)) {
-		name = candidate;
+		name.value = candidate;
 	}
 }
 
 async function addRole() {
 	const roles = await os.api('admin/roles/list');
-	const currentRoleIds = rolesThatCanBeUsedThisEmojiAsReaction.map(x => x.id);
+	const currentRoleIds = rolesThatCanBeUsedThisEmojiAsReaction.value.map(x => x.id);
 
 	const { canceled, result: role } = await os.select({
 		items: roles.filter(r => r.isPublic).filter(r => !currentRoleIds.includes(r.id)).map(r => ({ text: r.name, value: r })),
 	});
 	if (canceled) return;
 
-	rolesThatCanBeUsedThisEmojiAsReaction.push(role);
+	rolesThatCanBeUsedThisEmojiAsReaction.value.push(role);
 }
 
 async function removeRole(role, ev) {
-	rolesThatCanBeUsedThisEmojiAsReaction = rolesThatCanBeUsedThisEmojiAsReaction.filter(x => x.id !== role.id);
+	rolesThatCanBeUsedThisEmojiAsReaction.value = rolesThatCanBeUsedThisEmojiAsReaction.value.filter(x => x.id !== role.id);
 }
 
 async function done() {
 	const params = {
-		name,
-		category: category === '' ? null : category,
-		aliases: aliases.split(' ').filter(x => x !== ''),
-		license: license === '' ? null : license,
-		isSensitive,
-		localOnly,
-		roleIdsThatCanBeUsedThisEmojiAsReaction: rolesThatCanBeUsedThisEmojiAsReaction.map(x => x.id),
+		name: name.value,
+		category: category.value === '' ? null : category.value,
+		aliases: aliases.value.split(' ').filter(x => x !== ''),
+		license: license.value === '' ? null : license.value,
+		isSensitive: isSensitive.value,
+		localOnly: localOnly.value,
+		roleIdsThatCanBeUsedThisEmojiAsReaction: rolesThatCanBeUsedThisEmojiAsReaction.value.map(x => x.id),
 	};
 
-	if (file) {
-		params.fileId = file.id;
+	if (file.value) {
+		params.fileId = file.value.id;
 	}
 
 	if (props.emoji) {
@@ -166,7 +166,7 @@ async function done() {
 			},
 		});
 
-		dialog.close();
+		dialog.value.close();
 	} else {
 		const created = await os.apiWithDialog('admin/emoji/add', params);
 
@@ -174,14 +174,14 @@ async function done() {
 			created: created,
 		});
 
-		dialog.close();
+		dialog.value.close();
 	}
 }
 
 async function del() {
 	const { canceled } = await os.confirm({
 		type: 'warning',
-		text: i18n.t('removeAreYouSure', { x: name }),
+		text: i18n.t('removeAreYouSure', { x: name.value }),
 	});
 	if (canceled) return;
 
@@ -191,7 +191,7 @@ async function del() {
 		emit('done', {
 			deleted: true,
 		});
-		dialog.close();
+		dialog.value.close();
 	});
 }
 </script>
diff --git a/packages/frontend/src/pages/explore.featured.vue b/packages/frontend/src/pages/explore.featured.vue
index a36d1b3bda..000371528e 100644
--- a/packages/frontend/src/pages/explore.featured.vue
+++ b/packages/frontend/src/pages/explore.featured.vue
@@ -15,6 +15,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref } from 'vue';
 import MkNotes from '@/components/MkNotes.vue';
 import MkTab from '@/components/MkTab.vue';
 import { i18n } from '@/i18n.js';
@@ -30,5 +31,5 @@ const paginationForPolls = {
 	offsetMode: true,
 };
 
-let tab = $ref('notes');
+const tab = ref('notes');
 </script>
diff --git a/packages/frontend/src/pages/explore.roles.vue b/packages/frontend/src/pages/explore.roles.vue
index 995ccd777c..929da19426 100644
--- a/packages/frontend/src/pages/explore.roles.vue
+++ b/packages/frontend/src/pages/explore.roles.vue
@@ -12,14 +12,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import MkRolePreview from '@/components/MkRolePreview.vue';
 import * as os from '@/os.js';
 
-let roles = $ref();
+const roles = ref();
 
 os.api('roles/list').then(res => {
-	roles = res.filter(x => x.target === 'manual').sort((a, b) => b.displayOrder - a.displayOrder);
+	roles.value = res.filter(x => x.target === 'manual').sort((a, b) => b.displayOrder - a.displayOrder);
 });
 </script>
 
diff --git a/packages/frontend/src/pages/explore.users.vue b/packages/frontend/src/pages/explore.users.vue
index 1f187d6b8a..ffebd4cd6c 100644
--- a/packages/frontend/src/pages/explore.users.vue
+++ b/packages/frontend/src/pages/explore.users.vue
@@ -63,7 +63,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref, shallowRef, computed } from 'vue';
 import MkUserList from '@/components/MkUserList.vue';
 import MkFoldableSection from '@/components/MkFoldableSection.vue';
 import MkTab from '@/components/MkTab.vue';
@@ -74,16 +74,16 @@ const props = defineProps<{
 	tag?: string;
 }>();
 
-let origin = $ref('local');
-let tagsEl = $shallowRef<InstanceType<typeof MkFoldableSection>>();
-let tagsLocal = $ref([]);
-let tagsRemote = $ref([]);
+const origin = ref('local');
+const tagsEl = shallowRef<InstanceType<typeof MkFoldableSection>>();
+const tagsLocal = ref([]);
+const tagsRemote = ref([]);
 
 watch(() => props.tag, () => {
-	if (tagsEl) tagsEl.toggleContent(props.tag == null);
+	if (tagsEl.value) tagsEl.value.toggleContent(props.tag == null);
 });
 
-const tagUsers = $computed(() => ({
+const tagUsers = computed(() => ({
 	endpoint: 'hashtags/users' as const,
 	limit: 30,
 	params: {
@@ -127,13 +127,13 @@ os.api('hashtags/list', {
 	attachedToLocalUserOnly: true,
 	limit: 30,
 }).then(tags => {
-	tagsLocal = tags;
+	tagsLocal.value = tags;
 });
 os.api('hashtags/list', {
 	sort: '+attachedRemoteUsers',
 	attachedToRemoteUserOnly: true,
 	limit: 30,
 }).then(tags => {
-	tagsRemote = tags;
+	tagsRemote.value = tags;
 });
 </script>
diff --git a/packages/frontend/src/pages/explore.vue b/packages/frontend/src/pages/explore.vue
index fd846d979a..f068de8880 100644
--- a/packages/frontend/src/pages/explore.vue
+++ b/packages/frontend/src/pages/explore.vue
@@ -21,7 +21,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref, shallowRef } from 'vue';
 import XFeatured from './explore.featured.vue';
 import XUsers from './explore.users.vue';
 import XRoles from './explore.roles.vue';
@@ -36,16 +36,16 @@ const props = withDefaults(defineProps<{
 	initialTab: 'featured',
 });
 
-let tab = $ref(props.initialTab);
-let tagsEl = $shallowRef<InstanceType<typeof MkFoldableSection>>();
+const tab = ref(props.initialTab);
+const tagsEl = shallowRef<InstanceType<typeof MkFoldableSection>>();
 
 watch(() => props.tag, () => {
-	if (tagsEl) tagsEl.toggleContent(props.tag == null);
+	if (tagsEl.value) tagsEl.value.toggleContent(props.tag == null);
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'featured',
 	icon: 'ti ti-bolt',
 	title: i18n.ts.featured,
diff --git a/packages/frontend/src/pages/flash/flash-edit.vue b/packages/frontend/src/pages/flash/flash-edit.vue
index f494218c18..cfda4d6556 100644
--- a/packages/frontend/src/pages/flash/flash-edit.vue
+++ b/packages/frontend/src/pages/flash/flash-edit.vue
@@ -34,7 +34,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -363,79 +363,79 @@ const props = defineProps<{
 	id?: string;
 }>();
 
-let flash = $ref(null);
-let visibility = $ref('public');
+const flash = ref(null);
+const visibility = ref('public');
 
 if (props.id) {
-	flash = await os.api('flash/show', {
+	flash.value = await os.api('flash/show', {
 		flashId: props.id,
 	});
 }
 
-let title = $ref(flash?.title ?? 'New Play');
-let summary = $ref(flash?.summary ?? '');
-let permissions = $ref(flash?.permissions ?? []);
-let script = $ref(flash?.script ?? PRESET_DEFAULT);
+const title = ref(flash.value?.title ?? 'New Play');
+const summary = ref(flash.value?.summary ?? '');
+const permissions = ref(flash.value?.permissions ?? []);
+const script = ref(flash.value?.script ?? PRESET_DEFAULT);
 
 function selectPreset(ev: MouseEvent) {
 	os.popupMenu([{
 		text: 'Omikuji',
 		action: () => {
-			script = PRESET_OMIKUJI;
+			script.value = PRESET_OMIKUJI;
 		},
 	}, {
 		text: 'Shuffle',
 		action: () => {
-			script = PRESET_SHUFFLE;
+			script.value = PRESET_SHUFFLE;
 		},
 	}, {
 		text: 'Quiz',
 		action: () => {
-			script = PRESET_QUIZ;
+			script.value = PRESET_QUIZ;
 		},
 	}, {
 		text: 'Timeline viewer',
 		action: () => {
-			script = PRESET_TIMELINE;
+			script.value = PRESET_TIMELINE;
 		},
 	}], ev.currentTarget ?? ev.target);
 }
 
 async function save() {
-	if (flash) {
+	if (flash.value) {
 		os.apiWithDialog('flash/update', {
 			flashId: props.id,
-			title,
-			summary,
-			permissions,
-			script,
-			visibility,
+			title: title.value,
+			summary: summary.value,
+			permissions: permissions.value,
+			script: script.value,
+			visibility: visibility.value,
 		});
 	} else {
 		const created = await os.apiWithDialog('flash/create', {
-			title,
-			summary,
-			permissions,
-			script,
+			title: title.value,
+			summary: summary.value,
+			permissions: permissions.value,
+			script: script.value,
 		});
 		router.push('/play/' + created.id + '/edit');
 	}
 }
 
 function show() {
-	if (flash == null) {
+	if (flash.value == null) {
 		os.alert({
 			text: 'Please save',
 		});
 	} else {
-		os.pageWindow(`/play/${flash.id}`);
+		os.pageWindow(`/play/${flash.value.id}`);
 	}
 }
 
 async function del() {
 	const { canceled } = await os.confirm({
 		type: 'warning',
-		text: i18n.t('deleteAreYouSure', { x: flash.title }),
+		text: i18n.t('deleteAreYouSure', { x: flash.value.title }),
 	});
 	if (canceled) return;
 
@@ -445,12 +445,12 @@ async function del() {
 	router.push('/play');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => flash ? {
-	title: i18n.ts._play.edit + ': ' + flash.title,
+definePageMetadata(computed(() => flash.value ? {
+	title: i18n.ts._play.edit + ': ' + flash.value.title,
 } : {
 	title: i18n.ts._play.new,
 }));
diff --git a/packages/frontend/src/pages/flash/flash-index.vue b/packages/frontend/src/pages/flash/flash-index.vue
index 4a686efd45..e0b9f87d46 100644
--- a/packages/frontend/src/pages/flash/flash-index.vue
+++ b/packages/frontend/src/pages/flash/flash-index.vue
@@ -38,7 +38,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import MkFlashPreview from '@/components/MkFlashPreview.vue';
 import MkPagination from '@/components/MkPagination.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -48,7 +48,7 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 
 const router = useRouter();
 
-let tab = $ref('featured');
+const tab = ref('featured');
 
 const featuredFlashsPagination = {
 	endpoint: 'flash/featured' as const,
@@ -67,13 +67,13 @@ function create() {
 	router.push('/play/new');
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-plus',
 	text: i18n.ts.create,
 	handler: create,
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'featured',
 	title: i18n.ts._play.featured,
 	icon: 'ti ti-flare',
diff --git a/packages/frontend/src/pages/flash/flash.vue b/packages/frontend/src/pages/flash/flash.vue
index 4755eb5062..0ac95ca282 100644
--- a/packages/frontend/src/pages/flash/flash.vue
+++ b/packages/frontend/src/pages/flash/flash.vue
@@ -57,7 +57,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, onDeactivated, onUnmounted, Ref, ref, watch } from 'vue';
+import { computed, onDeactivated, onUnmounted, Ref, ref, watch, shallowRef } from 'vue';
 import { Interpreter, Parser, values } from '@syuilo/aiscript';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -78,45 +78,45 @@ const props = defineProps<{
 	id: string;
 }>();
 
-let flash = $ref(null);
-let error = $ref(null);
+const flash = ref(null);
+const error = ref(null);
 
 function fetchFlash() {
-	flash = null;
+	flash.value = null;
 	os.api('flash/show', {
 		flashId: props.id,
 	}).then(_flash => {
-		flash = _flash;
+		flash.value = _flash;
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
 function copyLink() {
-	copyToClipboard(`${url}/play/${flash.id}`);
+	copyToClipboard(`${url}/play/${flash.value.id}`);
 	os.success();
 }
 
 function share() {
 	navigator.share({
-		title: flash.title,
-		text: flash.summary,
-		url: `${url}/play/${flash.id}`,
+		title: flash.value.title,
+		text: flash.value.summary,
+		url: `${url}/play/${flash.value.id}`,
 	});
 }
 
 function shareWithNote() {
 	os.post({
-		initialText: `${flash.title} ${url}/play/${flash.id}`,
+		initialText: `${flash.value.title} ${url}/play/${flash.value.id}`,
 	});
 }
 
 function like() {
 	os.apiWithDialog('flash/like', {
-		flashId: flash.id,
+		flashId: flash.value.id,
 	}).then(() => {
-		flash.isLiked = true;
-		flash.likedCount++;
+		flash.value.isLiked = true;
+		flash.value.likedCount++;
 	});
 }
 
@@ -127,10 +127,10 @@ async function unlike() {
 	});
 	if (confirm.canceled) return;
 	os.apiWithDialog('flash/unlike', {
-		flashId: flash.id,
+		flashId: flash.value.id,
 	}).then(() => {
-		flash.isLiked = false;
-		flash.likedCount--;
+		flash.value.isLiked = false;
+		flash.value.likedCount--;
 	});
 }
 
@@ -138,28 +138,28 @@ watch(() => props.id, fetchFlash, { immediate: true });
 
 const parser = new Parser();
 
-let started = $ref(false);
-let aiscript = $shallowRef<Interpreter | null>(null);
+const started = ref(false);
+const aiscript = shallowRef<Interpreter | null>(null);
 const root = ref<AsUiRoot>();
-const components: Ref<AsUiComponent>[] = $ref([]);
+const components = ref<Ref<AsUiComponent>[]>([]);
 
 function start() {
-	started = true;
+	started.value = true;
 	run();
 }
 
 async function run() {
-	if (aiscript) aiscript.abort();
+	if (aiscript.value) aiscript.value.abort();
 
-	aiscript = new Interpreter({
+	aiscript.value = new Interpreter({
 		...createAiScriptEnv({
-			storageKey: 'flash:' + flash.id,
+			storageKey: 'flash:' + flash.value.id,
 		}),
-		...registerAsUiLib(components, (_root) => {
+		...registerAsUiLib(components.value, (_root) => {
 			root.value = _root.value;
 		}),
-		THIS_ID: values.STR(flash.id),
-		THIS_URL: values.STR(`${url}/play/${flash.id}`),
+		THIS_ID: values.STR(flash.value.id),
+		THIS_URL: values.STR(`${url}/play/${flash.value.id}`),
 	}, {
 		in: (q) => {
 			return new Promise(ok => {
@@ -184,7 +184,7 @@ async function run() {
 
 	let ast;
 	try {
-		ast = parser.parse(flash.script);
+		ast = parser.parse(flash.value.script);
 	} catch (err) {
 		os.alert({
 			type: 'error',
@@ -193,7 +193,7 @@ async function run() {
 		return;
 	}
 	try {
-		await aiscript.exec(ast);
+		await aiscript.value.exec(ast);
 	} catch (err) {
 		os.alert({
 			type: 'error',
@@ -204,24 +204,24 @@ async function run() {
 }
 
 onDeactivated(() => {
-	if (aiscript) aiscript.abort();
+	if (aiscript.value) aiscript.value.abort();
 });
 
 onUnmounted(() => {
-	if (aiscript) aiscript.abort();
+	if (aiscript.value) aiscript.value.abort();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => flash ? {
-	title: flash.title,
-	avatar: flash.user,
-	path: `/play/${flash.id}`,
+definePageMetadata(computed(() => flash.value ? {
+	title: flash.value.title,
+	avatar: flash.value.user,
+	path: `/play/${flash.value.id}`,
 	share: {
-		title: flash.title,
-		text: flash.summary,
+		title: flash.value.title,
+		text: flash.value.summary,
 	},
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/follow-requests.vue b/packages/frontend/src/pages/follow-requests.vue
index 4f7fdef0ba..51f31b1ca5 100644
--- a/packages/frontend/src/pages/follow-requests.vue
+++ b/packages/frontend/src/pages/follow-requests.vue
@@ -65,9 +65,9 @@ function reject(user) {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.followRequests,
diff --git a/packages/frontend/src/pages/gallery/edit.vue b/packages/frontend/src/pages/gallery/edit.vue
index f3cbd4947c..5761e8e32c 100644
--- a/packages/frontend/src/pages/gallery/edit.vue
+++ b/packages/frontend/src/pages/gallery/edit.vue
@@ -38,7 +38,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkTextarea from '@/components/MkTextarea.vue';
@@ -56,38 +56,38 @@ const props = defineProps<{
 	postId?: string;
 }>();
 
-let init = $ref(null);
-let files = $ref([]);
-let description = $ref(null);
-let title = $ref(null);
-let isSensitive = $ref(false);
+const init = ref(null);
+const files = ref([]);
+const description = ref(null);
+const title = ref(null);
+const isSensitive = ref(false);
 
 function selectFile(evt) {
 	selectFiles(evt.currentTarget ?? evt.target, null).then(selected => {
-		files = files.concat(selected);
+		files.value = files.value.concat(selected);
 	});
 }
 
 function remove(file) {
-	files = files.filter(f => f.id !== file.id);
+	files.value = files.value.filter(f => f.id !== file.id);
 }
 
 async function save() {
 	if (props.postId) {
 		await os.apiWithDialog('gallery/posts/update', {
 			postId: props.postId,
-			title: title,
-			description: description,
-			fileIds: files.map(file => file.id),
-			isSensitive: isSensitive,
+			title: title.value,
+			description: description.value,
+			fileIds: files.value.map(file => file.id),
+			isSensitive: isSensitive.value,
 		});
 		router.push(`/gallery/${props.postId}`);
 	} else {
 		const created = await os.apiWithDialog('gallery/posts/create', {
-			title: title,
-			description: description,
-			fileIds: files.map(file => file.id),
-			isSensitive: isSensitive,
+			title: title.value,
+			description: description.value,
+			fileIds: files.value.map(file => file.id),
+			isSensitive: isSensitive.value,
 		});
 		router.push(`/gallery/${created.id}`);
 	}
@@ -106,19 +106,19 @@ async function del() {
 }
 
 watch(() => props.postId, () => {
-	init = () => props.postId ? os.api('gallery/posts/show', {
+	init.value = () => props.postId ? os.api('gallery/posts/show', {
 		postId: props.postId,
 	}).then(post => {
-		files = post.files;
-		title = post.title;
-		description = post.description;
-		isSensitive = post.isSensitive;
+		files.value = post.files;
+		title.value = post.title;
+		description.value = post.description;
+		isSensitive.value = post.isSensitive;
 	}) : Promise.resolve(null);
 }, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => props.postId ? {
 	title: i18n.ts.edit,
diff --git a/packages/frontend/src/pages/gallery/index.vue b/packages/frontend/src/pages/gallery/index.vue
index 43bb7c496d..8d9ac07805 100644
--- a/packages/frontend/src/pages/gallery/index.vue
+++ b/packages/frontend/src/pages/gallery/index.vue
@@ -47,7 +47,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref, computed } from 'vue';
 import MkFoldableSection from '@/components/MkFoldableSection.vue';
 import MkPagination from '@/components/MkPagination.vue';
 import MkGalleryPostPreview from '@/components/MkGalleryPostPreview.vue';
@@ -61,9 +61,9 @@ const props = defineProps<{
 	tag?: string;
 }>();
 
-let tab = $ref('explore');
-let tags = $ref([]);
-let tagsRef = $ref();
+const tab = ref('explore');
+const tags = ref([]);
+const tagsRef = ref();
 
 const recentPostsPagination = {
 	endpoint: 'gallery/posts' as const,
@@ -82,7 +82,7 @@ const likedPostsPagination = {
 	limit: 5,
 };
 
-const tagUsersPagination = $computed(() => ({
+const tagUsersPagination = computed(() => ({
 	endpoint: 'hashtags/users' as const,
 	limit: 30,
 	params: {
@@ -93,10 +93,10 @@ const tagUsersPagination = $computed(() => ({
 }));
 
 watch(() => props.tag, () => {
-	if (tagsRef) tagsRef.tags.toggleContent(props.tag == null);
+	if (tagsRef.value) tagsRef.value.tags.toggleContent(props.tag == null);
 });
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-plus',
 	text: i18n.ts.create,
 	handler: () => {
@@ -104,7 +104,7 @@ const headerActions = $computed(() => [{
 	},
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'explore',
 	title: i18n.ts.gallery,
 	icon: 'ti ti-icons',
diff --git a/packages/frontend/src/pages/gallery/post.vue b/packages/frontend/src/pages/gallery/post.vue
index 5b551f75b5..3dd04ccb55 100644
--- a/packages/frontend/src/pages/gallery/post.vue
+++ b/packages/frontend/src/pages/gallery/post.vue
@@ -62,7 +62,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
 import MkContainer from '@/components/MkContainer.vue';
@@ -84,43 +84,43 @@ const props = defineProps<{
 	postId: string;
 }>();
 
-let post = $ref(null);
-let error = $ref(null);
+const post = ref(null);
+const error = ref(null);
 const otherPostsPagination = {
 	endpoint: 'users/gallery/posts' as const,
 	limit: 6,
 	params: computed(() => ({
-		userId: post.user.id,
+		userId: post.value.user.id,
 	})),
 };
 
 function fetchPost() {
-	post = null;
+	post.value = null;
 	os.api('gallery/posts/show', {
 		postId: props.postId,
 	}).then(_post => {
-		post = _post;
+		post.value = _post;
 	}).catch(_error => {
-		error = _error;
+		error.value = _error;
 	});
 }
 
 function copyLink() {
-	copyToClipboard(`${url}/gallery/${post.id}`);
+	copyToClipboard(`${url}/gallery/${post.value.id}`);
 	os.success();
 }
 
 function share() {
 	navigator.share({
-		title: post.title,
-		text: post.description,
-		url: `${url}/gallery/${post.id}`,
+		title: post.value.title,
+		text: post.value.description,
+		url: `${url}/gallery/${post.value.id}`,
 	});
 }
 
 function shareWithNote() {
 	os.post({
-		initialText: `${post.title} ${url}/gallery/${post.id}`,
+		initialText: `${post.value.title} ${url}/gallery/${post.value.id}`,
 	});
 }
 
@@ -128,8 +128,8 @@ function like() {
 	os.apiWithDialog('gallery/posts/like', {
 		postId: props.postId,
 	}).then(() => {
-		post.isLiked = true;
-		post.likedCount++;
+		post.value.isLiked = true;
+		post.value.likedCount++;
 	});
 }
 
@@ -142,28 +142,28 @@ async function unlike() {
 	os.apiWithDialog('gallery/posts/unlike', {
 		postId: props.postId,
 	}).then(() => {
-		post.isLiked = false;
-		post.likedCount--;
+		post.value.isLiked = false;
+		post.value.likedCount--;
 	});
 }
 
 function edit() {
-	router.push(`/gallery/${post.id}/edit`);
+	router.push(`/gallery/${post.value.id}/edit`);
 }
 
 watch(() => props.postId, fetchPost, { immediate: true });
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-pencil',
 	text: i18n.ts.edit,
 	handler: edit,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => post ? {
-	title: post.title,
-	avatar: post.user,
+definePageMetadata(computed(() => post.value ? {
+	title: post.value.title,
+	avatar: post.value.user,
 } : null));
 </script>
 
diff --git a/packages/frontend/src/pages/instance-info.vue b/packages/frontend/src/pages/instance-info.vue
index 8706228fd1..93d74fb42e 100644
--- a/packages/frontend/src/pages/instance-info.vue
+++ b/packages/frontend/src/pages/instance-info.vue
@@ -117,7 +117,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkChart from '@/components/MkChart.vue';
 import MkObjectView from '@/components/MkObjectView.vue';
@@ -142,14 +142,14 @@ const props = defineProps<{
 	host: string;
 }>();
 
-let tab = $ref('overview');
-let chartSrc = $ref('instance-requests');
-let meta = $ref<Misskey.entities.AdminMetaResponse | null>(null);
-let instance = $ref<Misskey.entities.FederationInstance | null>(null);
-let suspended = $ref(false);
-let isBlocked = $ref(false);
-let isSilenced = $ref(false);
-let faviconUrl = $ref<string | null>(null);
+const tab = ref('overview');
+const chartSrc = ref('instance-requests');
+const meta = ref<Misskey.entities.AdminMetaResponse | null>(null);
+const instance = ref<Misskey.entities.FederationInstance | null>(null);
+const suspended = ref(false);
+const isBlocked = ref(false);
+const isSilenced = ref(false);
+const faviconUrl = ref<string | null>(null);
 
 const usersPagination = {
 	endpoint: iAmModerator ? 'admin/show-users' : 'users' as const,
@@ -164,48 +164,48 @@ const usersPagination = {
 
 async function fetch(): Promise<void> {
 	if (iAmAdmin) {
-		meta = await os.api('admin/meta');
+		meta.value = await os.api('admin/meta');
 	}
-	instance = await os.api('federation/show-instance', {
+	instance.value = await os.api('federation/show-instance', {
 		host: props.host,
 	});
-	suspended = instance?.isSuspended ?? false;
-	isBlocked = instance?.isBlocked ?? false;
-	isSilenced = instance?.isSilenced ?? false;
-	faviconUrl = getProxiedImageUrlNullable(instance?.faviconUrl, 'preview') ?? getProxiedImageUrlNullable(instance?.iconUrl, 'preview');
+	suspended.value = instance.value?.isSuspended ?? false;
+	isBlocked.value = instance.value?.isBlocked ?? false;
+	isSilenced.value = instance.value?.isSilenced ?? false;
+	faviconUrl.value = getProxiedImageUrlNullable(instance.value?.faviconUrl, 'preview') ?? getProxiedImageUrlNullable(instance.value?.iconUrl, 'preview');
 }
 
 async function toggleBlock(): Promise<void> {
-	if (!meta) throw new Error('No meta?');
-	if (!instance) throw new Error('No instance?');
-	const { host } = instance;
+	if (!meta.value) throw new Error('No meta?');
+	if (!instance.value) throw new Error('No instance?');
+	const { host } = instance.value;
 	await os.api('admin/update-meta', {
-		blockedHosts: isBlocked ? meta.blockedHosts.concat([host]) : meta.blockedHosts.filter(x => x !== host),
+		blockedHosts: isBlocked.value ? meta.value.blockedHosts.concat([host]) : meta.value.blockedHosts.filter(x => x !== host),
 	});
 }
 
 async function toggleSilenced(): Promise<void> {
-	if (!meta) throw new Error('No meta?');
-	if (!instance) throw new Error('No instance?');
-	const { host } = instance;
-	const silencedHosts = meta.silencedHosts ?? [];
+	if (!meta.value) throw new Error('No meta?');
+	if (!instance.value) throw new Error('No instance?');
+	const { host } = instance.value;
+	const silencedHosts = meta.value.silencedHosts ?? [];
 	await os.api('admin/update-meta', {
-		silencedHosts: isSilenced ? silencedHosts.concat([host]) : silencedHosts.filter(x => x !== host),
+		silencedHosts: isSilenced.value ? silencedHosts.concat([host]) : silencedHosts.filter(x => x !== host),
 	});
 }
 
 async function toggleSuspend(): Promise<void> {
-	if (!instance) throw new Error('No instance?');
+	if (!instance.value) throw new Error('No instance?');
 	await os.api('admin/federation/update-instance', {
-		host: instance.host,
-		isSuspended: suspended,
+		host: instance.value.host,
+		isSuspended: suspended.value,
 	});
 }
 
 function refreshMetadata(): void {
-	if (!instance) throw new Error('No instance?');
+	if (!instance.value) throw new Error('No instance?');
 	os.api('admin/federation/refresh-remote-instance-metadata', {
-		host: instance.host,
+		host: instance.value.host,
 	});
 	os.alert({
 		text: 'Refresh requested',
@@ -214,7 +214,7 @@ function refreshMetadata(): void {
 
 fetch();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	text: `https://${props.host}`,
 	icon: 'ti ti-external-link',
 	handler: () => {
@@ -222,7 +222,7 @@ const headerActions = $computed(() => [{
 	},
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'overview',
 	title: i18n.ts.overview,
 	icon: 'ti ti-info-circle',
diff --git a/packages/frontend/src/pages/list.vue b/packages/frontend/src/pages/list.vue
index db0b201b73..d951e8ce07 100644
--- a/packages/frontend/src/pages/list.vue
+++ b/packages/frontend/src/pages/list.vue
@@ -34,7 +34,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch, computed } from 'vue';
+import { watch, computed, ref } from 'vue';
 import * as os from '@/os.js';
 import { userPage } from '@/filters/user.js';
 import { i18n } from '@/i18n.js';
@@ -47,41 +47,41 @@ const props = defineProps<{
 	listId: string;
 }>();
 
-let list = $ref(null);
-let error = $ref();
-let users = $ref([]);
+const list = ref(null);
+const error = ref();
+const users = ref([]);
 
 function fetchList(): void {
 	os.api('users/lists/show', {
 		listId: props.listId,
 		forPublic: true,
 	}).then(_list => {
-		list = _list;
+		list.value = _list;
 		os.api('users/show', {
-			userIds: list.userIds,
+			userIds: list.value.userIds,
 		}).then(_users => {
-			users = _users;
+			users.value = _users;
 		});
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
 function like() {
 	os.apiWithDialog('users/lists/favorite', {
-		listId: list.id,
+		listId: list.value.id,
 	}).then(() => {
-		list.isLiked = true;
-		list.likedCount++;
+		list.value.isLiked = true;
+		list.value.likedCount++;
 	});
 }
 
 function unlike() {
 	os.apiWithDialog('users/lists/unfavorite', {
-		listId: list.id,
+		listId: list.value.id,
 	}).then(() => {
-		list.isLiked = false;
-		list.likedCount--;
+		list.value.isLiked = false;
+		list.value.likedCount--;
 	});
 }
 
@@ -90,17 +90,17 @@ async function create() {
 		title: i18n.ts.enterListName,
 	});
 	if (canceled) return;
-	await os.apiWithDialog('users/lists/create-from-public', { name: name, listId: list.id });
+	await os.apiWithDialog('users/lists/create-from-public', { name: name, listId: list.value.id });
 }
 
 watch(() => props.listId, fetchList, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => list ? {
-	title: list.name,
+definePageMetadata(computed(() => list.value ? {
+	title: list.value.name,
 	icon: 'ti ti-list',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/miauth.vue b/packages/frontend/src/pages/miauth.vue
index 1572d27aab..ad9bea4548 100644
--- a/packages/frontend/src/pages/miauth.vue
+++ b/packages/frontend/src/pages/miauth.vue
@@ -43,7 +43,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkSignin from '@/components/MkSignin.vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -61,10 +61,10 @@ const props = defineProps<{
 
 const _permissions = props.permission ? props.permission.split(',') : [];
 
-let state = $ref<string | null>(null);
+const state = ref<string | null>(null);
 
 async function accept(): Promise<void> {
-	state = 'waiting';
+	state.value = 'waiting';
 	await os.api('miauth/gen-token', {
 		session: props.session,
 		name: props.name,
@@ -72,7 +72,7 @@ async function accept(): Promise<void> {
 		permission: _permissions,
 	});
 
-	state = 'accepted';
+	state.value = 'accepted';
 	if (props.callback) {
 		const cbUrl = new URL(props.callback);
 		if (['javascript:', 'file:', 'data:', 'mailto:', 'tel:'].includes(cbUrl.protocol)) throw new Error('invalid url');
@@ -82,16 +82,16 @@ async function accept(): Promise<void> {
 }
 
 function deny(): void {
-	state = 'denied';
+	state.value = 'denied';
 }
 
 function onLogin(res): void {
 	login(res.i);
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'MiAuth',
diff --git a/packages/frontend/src/pages/my-antennas/create.vue b/packages/frontend/src/pages/my-antennas/create.vue
index 6c963cdb5d..c5b1b54222 100644
--- a/packages/frontend/src/pages/my-antennas/create.vue
+++ b/packages/frontend/src/pages/my-antennas/create.vue
@@ -10,6 +10,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref } from 'vue';
 import XAntenna from './editor.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
@@ -18,7 +19,7 @@ import { antennasCache } from '@/cache.js';
 
 const router = useRouter();
 
-let draft = $ref({
+const draft = ref({
 	name: '',
 	src: 'all',
 	userListId: null,
diff --git a/packages/frontend/src/pages/my-antennas/edit.vue b/packages/frontend/src/pages/my-antennas/edit.vue
index 6600ebcc64..896e61f289 100644
--- a/packages/frontend/src/pages/my-antennas/edit.vue
+++ b/packages/frontend/src/pages/my-antennas/edit.vue
@@ -10,6 +10,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref } from 'vue';
 import XAntenna from './editor.vue';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -19,7 +20,7 @@ import { antennasCache } from '@/cache';
 
 const router = useRouter();
 
-let antenna: any = $ref(null);
+const antenna = ref<any>(null);
 
 const props = defineProps<{
 	antennaId: string
@@ -31,7 +32,7 @@ function onAntennaUpdated() {
 }
 
 os.api('antennas/show', { antennaId: props.antennaId }).then((antennaResponse) => {
-	antenna = antennaResponse;
+	antenna.value = antennaResponse;
 });
 
 definePageMetadata({
diff --git a/packages/frontend/src/pages/my-antennas/editor.vue b/packages/frontend/src/pages/my-antennas/editor.vue
index 16b8b848fd..388096c7df 100644
--- a/packages/frontend/src/pages/my-antennas/editor.vue
+++ b/packages/frontend/src/pages/my-antennas/editor.vue
@@ -49,7 +49,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -69,38 +69,38 @@ const emit = defineEmits<{
 	(ev: 'deleted'): void,
 }>();
 
-let name: string = $ref(props.antenna.name);
-let src: string = $ref(props.antenna.src);
-let userListId: any = $ref(props.antenna.userListId);
-let users: string = $ref(props.antenna.users.join('\n'));
-let keywords: string = $ref(props.antenna.keywords.map(x => x.join(' ')).join('\n'));
-let excludeKeywords: string = $ref(props.antenna.excludeKeywords.map(x => x.join(' ')).join('\n'));
-let caseSensitive: boolean = $ref(props.antenna.caseSensitive);
-let localOnly: boolean = $ref(props.antenna.localOnly);
-let withReplies: boolean = $ref(props.antenna.withReplies);
-let withFile: boolean = $ref(props.antenna.withFile);
-let notify: boolean = $ref(props.antenna.notify);
-let userLists: any = $ref(null);
+const name = ref<string>(props.antenna.name);
+const src = ref<string>(props.antenna.src);
+const userListId = ref<any>(props.antenna.userListId);
+const users = ref<string>(props.antenna.users.join('\n'));
+const keywords = ref<string>(props.antenna.keywords.map(x => x.join(' ')).join('\n'));
+const excludeKeywords = ref<string>(props.antenna.excludeKeywords.map(x => x.join(' ')).join('\n'));
+const caseSensitive = ref<boolean>(props.antenna.caseSensitive);
+const localOnly = ref<boolean>(props.antenna.localOnly);
+const withReplies = ref<boolean>(props.antenna.withReplies);
+const withFile = ref<boolean>(props.antenna.withFile);
+const notify = ref<boolean>(props.antenna.notify);
+const userLists = ref<any>(null);
 
-watch(() => src, async () => {
-	if (src === 'list' && userLists === null) {
-		userLists = await os.api('users/lists/list');
+watch(() => src.value, async () => {
+	if (src.value === 'list' && userLists.value === null) {
+		userLists.value = await os.api('users/lists/list');
 	}
 });
 
 async function saveAntenna() {
 	const antennaData = {
-		name,
-		src,
-		userListId,
-		withReplies,
-		withFile,
-		notify,
-		caseSensitive,
-		localOnly,
-		users: users.trim().split('\n').map(x => x.trim()),
-		keywords: keywords.trim().split('\n').map(x => x.trim().split(' ')),
-		excludeKeywords: excludeKeywords.trim().split('\n').map(x => x.trim().split(' ')),
+		name: name.value,
+		src: src.value,
+		userListId: userListId.value,
+		withReplies: withReplies.value,
+		withFile: withFile.value,
+		notify: notify.value,
+		caseSensitive: caseSensitive.value,
+		localOnly: localOnly.value,
+		users: users.value.trim().split('\n').map(x => x.trim()),
+		keywords: keywords.value.trim().split('\n').map(x => x.trim().split(' ')),
+		excludeKeywords: excludeKeywords.value.trim().split('\n').map(x => x.trim().split(' ')),
 	};
 
 	if (props.antenna.id == null) {
@@ -130,9 +130,9 @@ async function deleteAntenna() {
 
 function addUser() {
 	os.selectUser().then(user => {
-		users = users.trim();
-		users += '\n@' + Misskey.acct.toString(user as any);
-		users = users.trim();
+		users.value = users.value.trim();
+		users.value += '\n@' + Misskey.acct.toString(user as any);
+		users.value = users.value.trim();
 	});
 }
 </script>
diff --git a/packages/frontend/src/pages/my-antennas/index.vue b/packages/frontend/src/pages/my-antennas/index.vue
index 2d9cd05b45..4b2a3b548d 100644
--- a/packages/frontend/src/pages/my-antennas/index.vue
+++ b/packages/frontend/src/pages/my-antennas/index.vue
@@ -28,14 +28,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onActivated } from 'vue';
+import { onActivated, computed } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { antennasCache } from '@/cache';
 import { infoImageUrl } from '@/instance.js';
 
-const antennas = $computed(() => antennasCache.value.value ?? []);
+const antennas = computed(() => antennasCache.value.value ?? []);
 
 function fetch() {
 	antennasCache.fetch();
@@ -43,7 +43,7 @@ function fetch() {
 
 fetch();
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-refresh',
 	text: i18n.ts.reload,
@@ -53,7 +53,7 @@ const headerActions = $computed(() => [{
 	},
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.manageAntennas,
diff --git a/packages/frontend/src/pages/my-clips/index.vue b/packages/frontend/src/pages/my-clips/index.vue
index 8289d65a4b..2390617954 100644
--- a/packages/frontend/src/pages/my-clips/index.vue
+++ b/packages/frontend/src/pages/my-clips/index.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref, shallowRef, computed } from 'vue';
 import MkPagination from '@/components/MkPagination.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkClipPreview from '@/components/MkClipPreview.vue';
@@ -41,13 +41,13 @@ const pagination = {
 	limit: 10,
 };
 
-let tab = $ref('my');
-let favorites = $ref();
+const tab = ref('my');
+const favorites = ref();
 
-const pagingComponent = $shallowRef<InstanceType<typeof MkPagination>>();
+const pagingComponent = shallowRef<InstanceType<typeof MkPagination>>();
 
-watch($$(tab), async () => {
-	favorites = await os.api('clips/my-favorites');
+watch(tab, async () => {
+	favorites.value = await os.api('clips/my-favorites');
 });
 
 async function create() {
@@ -74,20 +74,20 @@ async function create() {
 
 	clipsCache.delete();
 
-	pagingComponent.reload();
+	pagingComponent.value.reload();
 }
 
 function onClipCreated() {
-	pagingComponent.reload();
+	pagingComponent.value.reload();
 }
 
 function onClipDeleted() {
-	pagingComponent.reload();
+	pagingComponent.value.reload();
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'my',
 	title: i18n.ts.myClips,
 	icon: 'ti ti-paperclip',
diff --git a/packages/frontend/src/pages/my-lists/index.vue b/packages/frontend/src/pages/my-lists/index.vue
index 3e7efb5a7c..ff360fccfe 100644
--- a/packages/frontend/src/pages/my-lists/index.vue
+++ b/packages/frontend/src/pages/my-lists/index.vue
@@ -29,7 +29,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onActivated } from 'vue';
+import { onActivated, computed } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkAvatars from '@/components/MkAvatars.vue';
 import * as os from '@/os.js';
@@ -39,7 +39,7 @@ import { userListsCache } from '@/cache';
 import { infoImageUrl } from '@/instance.js';
 import { $i } from '@/account.js';
 
-const items = $computed(() => userListsCache.value.value ?? []);
+const items = computed(() => userListsCache.value.value ?? []);
 
 function fetch() {
 	userListsCache.fetch();
@@ -57,7 +57,7 @@ async function create() {
 	fetch();
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-refresh',
 	text: i18n.ts.reload,
@@ -67,7 +67,7 @@ const headerActions = $computed(() => [{
 	},
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.manageLists,
diff --git a/packages/frontend/src/pages/my-lists/list.vue b/packages/frontend/src/pages/my-lists/list.vue
index b600f99fbc..3c6b0750de 100644
--- a/packages/frontend/src/pages/my-lists/list.vue
+++ b/packages/frontend/src/pages/my-lists/list.vue
@@ -79,7 +79,7 @@ const props = defineProps<{
 }>();
 
 const paginationEl = ref<InstanceType<typeof MkPagination>>();
-let list = $ref<Misskey.entities.UserList | null>(null);
+const list = ref<Misskey.entities.UserList | null>(null);
 const isPublic = ref(false);
 const name = ref('');
 const membershipsPagination = {
@@ -94,17 +94,17 @@ function fetchList() {
 	os.api('users/lists/show', {
 		listId: props.listId,
 	}).then(_list => {
-		list = _list;
-		name.value = list.name;
-		isPublic.value = list.isPublic;
+		list.value = _list;
+		name.value = list.value.name;
+		isPublic.value = list.value.isPublic;
 	});
 }
 
 function addUser() {
 	os.selectUser().then(user => {
-		if (!list) return;
+		if (!list.value) return;
 		os.apiWithDialog('users/lists/push', {
-			listId: list.id,
+			listId: list.value.id,
 			userId: user.id,
 		}).then(() => {
 			paginationEl.value.reload();
@@ -118,9 +118,9 @@ async function removeUser(item, ev) {
 		icon: 'ti ti-x',
 		danger: true,
 		action: async () => {
-			if (!list) return;
+			if (!list.value) return;
 			os.api('users/lists/pull', {
-				listId: list.id,
+				listId: list.value.id,
 				userId: item.userId,
 			}).then(() => {
 				paginationEl.value.removeItem(item.id);
@@ -135,7 +135,7 @@ async function showMembershipMenu(item, ev) {
 		icon: item.withReplies ? 'ti ti-messages-off' : 'ti ti-messages',
 		action: async () => {
 			os.api('users/lists/update-membership', {
-				listId: list.id,
+				listId: list.value.id,
 				userId: item.userId,
 				withReplies: !item.withReplies,
 			}).then(() => {
@@ -149,42 +149,42 @@ async function showMembershipMenu(item, ev) {
 }
 
 async function deleteList() {
-	if (!list) return;
+	if (!list.value) return;
 	const { canceled } = await os.confirm({
 		type: 'warning',
-		text: i18n.t('removeAreYouSure', { x: list.name }),
+		text: i18n.t('removeAreYouSure', { x: list.value.name }),
 	});
 	if (canceled) return;
 
 	await os.apiWithDialog('users/lists/delete', {
-		listId: list.id,
+		listId: list.value.id,
 	});
 	userListsCache.delete();
 	mainRouter.push('/my/lists');
 }
 
 async function updateSettings() {
-	if (!list) return;
+	if (!list.value) return;
 	await os.apiWithDialog('users/lists/update', {
-		listId: list.id,
+		listId: list.value.id,
 		name: name.value,
 		isPublic: isPublic.value,
 	});
 
 	userListsCache.delete();
 
-	list.name = name.value;
-	list.isPublic = isPublic.value;
+	list.value.name = name.value;
+	list.value.isPublic = isPublic.value;
 }
 
 watch(() => props.listId, fetchList, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => list ? {
-	title: list.name,
+definePageMetadata(computed(() => list.value ? {
+	title: list.value.name,
 	icon: 'ti ti-list',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/not-found.vue b/packages/frontend/src/pages/not-found.vue
index b3d40e3ef8..2245147873 100644
--- a/packages/frontend/src/pages/not-found.vue
+++ b/packages/frontend/src/pages/not-found.vue
@@ -13,6 +13,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { computed } from 'vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { pleaseLogin } from '@/scripts/please-login.js';
@@ -26,9 +27,9 @@ if (props.showLoginPopup) {
 	pleaseLogin('/');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.notFound,
diff --git a/packages/frontend/src/pages/note.vue b/packages/frontend/src/pages/note.vue
index 066a3042ba..eee6dbfbb8 100644
--- a/packages/frontend/src/pages/note.vue
+++ b/packages/frontend/src/pages/note.vue
@@ -44,7 +44,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkNoteDetailed from '@/components/MkNoteDetailed.vue';
 import MkNotes from '@/components/MkNotes.vue';
@@ -61,18 +61,18 @@ const props = defineProps<{
 	noteId: string;
 }>();
 
-let note = $ref<null | Misskey.entities.Note>();
-let clips = $ref();
-let showPrev = $ref(false);
-let showNext = $ref(false);
-let error = $ref();
+const note = ref<null | Misskey.entities.Note>();
+const clips = ref();
+const showPrev = ref(false);
+const showNext = ref(false);
+const error = ref();
 
 const prevPagination = {
 	endpoint: 'users/notes' as const,
 	limit: 10,
-	params: computed(() => note ? ({
-		userId: note.userId,
-		untilId: note.id,
+	params: computed(() => note.value ? ({
+		userId: note.value.userId,
+		untilId: note.value.id,
 	}) : null),
 };
 
@@ -80,30 +80,30 @@ const nextPagination = {
 	reversed: true,
 	endpoint: 'users/notes' as const,
 	limit: 10,
-	params: computed(() => note ? ({
-		userId: note.userId,
-		sinceId: note.id,
+	params: computed(() => note.value ? ({
+		userId: note.value.userId,
+		sinceId: note.value.id,
 	}) : null),
 };
 
 function fetchNote() {
-	showPrev = false;
-	showNext = false;
-	note = null;
+	showPrev.value = false;
+	showNext.value = false;
+	note.value = null;
 	os.api('notes/show', {
 		noteId: props.noteId,
 	}).then(res => {
-		note = res;
+		note.value = res;
 		// 古いノートは被クリップ数をカウントしていないので、2023-10-01以前のものは強制的にnotes/clipsを叩く
-		if (note.clippedCount > 0 || new Date(note.createdAt).getTime() < new Date('2023-10-01').getTime()) {
+		if (note.value.clippedCount > 0 || new Date(note.value.createdAt).getTime() < new Date('2023-10-01').getTime()) {
 			os.api('notes/clips', {
-				noteId: note.id,
+				noteId: note.value.id,
 			}).then((_clips) => {
-				clips = _clips;
+				clips.value = _clips;
 			});
 		}
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
@@ -111,18 +111,18 @@ watch(() => props.noteId, fetchNote, {
 	immediate: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => note ? {
+definePageMetadata(computed(() => note.value ? {
 	title: i18n.ts.note,
-	subtitle: dateString(note.createdAt),
-	avatar: note.user,
-	path: `/notes/${note.id}`,
+	subtitle: dateString(note.value.createdAt),
+	avatar: note.value.user,
+	path: `/notes/${note.value.id}`,
 	share: {
-		title: i18n.t('noteOf', { user: note.user.name }),
-		text: note.text,
+		title: i18n.t('noteOf', { user: note.value.user.name }),
+		text: note.value.text,
 	},
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/notifications.vue b/packages/frontend/src/pages/notifications.vue
index 8d2475b085..71ce7c353b 100644
--- a/packages/frontend/src/pages/notifications.vue
+++ b/packages/frontend/src/pages/notifications.vue
@@ -21,7 +21,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import XNotifications from '@/components/MkNotifications.vue';
 import MkNotes from '@/components/MkNotes.vue';
 import * as os from '@/os.js';
@@ -29,9 +29,9 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { notificationTypes } from '@/const.js';
 
-let tab = $ref('all');
-let includeTypes = $ref<string[] | null>(null);
-const excludeTypes = $computed(() => includeTypes ? notificationTypes.filter(t => !includeTypes.includes(t)) : null);
+const tab = ref('all');
+const includeTypes = ref<string[] | null>(null);
+const excludeTypes = computed(() => includeTypes.value ? notificationTypes.filter(t => !includeTypes.value.includes(t)) : null);
 
 const mentionsPagination = {
 	endpoint: 'notes/mentions' as const,
@@ -49,27 +49,27 @@ const directNotesPagination = {
 function setFilter(ev) {
 	const typeItems = notificationTypes.map(t => ({
 		text: i18n.t(`_notification._types.${t}`),
-		active: includeTypes && includeTypes.includes(t),
+		active: includeTypes.value && includeTypes.value.includes(t),
 		action: () => {
-			includeTypes = [t];
+			includeTypes.value = [t];
 		},
 	}));
-	const items = includeTypes != null ? [{
+	const items = includeTypes.value != null ? [{
 		icon: 'ti ti-x',
 		text: i18n.ts.clear,
 		action: () => {
-			includeTypes = null;
+			includeTypes.value = null;
 		},
 	}, null, ...typeItems] : typeItems;
 	os.popupMenu(items, ev.currentTarget ?? ev.target);
 }
 
-const headerActions = $computed(() => [tab === 'all' ? {
+const headerActions = computed(() => [tab.value === 'all' ? {
 	text: i18n.ts.filter,
 	icon: 'ti ti-filter',
-	highlighted: includeTypes != null,
+	highlighted: includeTypes.value != null,
 	handler: setFilter,
-} : undefined, tab === 'all' ? {
+} : undefined, tab.value === 'all' ? {
 	text: i18n.ts.markAllAsRead,
 	icon: 'ti ti-check',
 	handler: () => {
@@ -77,7 +77,7 @@ const headerActions = $computed(() => [tab === 'all' ? {
 	},
 } : undefined].filter(x => x !== undefined));
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'all',
 	title: i18n.ts.all,
 	icon: 'ti ti-point',
diff --git a/packages/frontend/src/pages/page-editor/els/page-editor.el.image.vue b/packages/frontend/src/pages/page-editor/els/page-editor.el.image.vue
index 4fffd311b2..e3f116dc6c 100644
--- a/packages/frontend/src/pages/page-editor/els/page-editor.el.image.vue
+++ b/packages/frontend/src/pages/page-editor/els/page-editor.el.image.vue
@@ -21,7 +21,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 /* eslint-disable vue/no-mutating-props */
-import { onMounted } from 'vue';
+import { onMounted, ref } from 'vue';
 import XContainer from '../page-editor.container.vue';
 import MkDriveFileThumbnail from '@/components/MkDriveFileThumbnail.vue';
 import * as os from '@/os.js';
@@ -35,14 +35,14 @@ const emit = defineEmits<{
 	(ev: 'update:modelValue', value: any): void;
 }>();
 
-let file: any = $ref(null);
+const file = ref<any>(null);
 
 async function choose() {
 	os.selectDriveFile(false).then((fileResponse) => {
-		file = fileResponse[0];
+		file.value = fileResponse[0];
 		emit('update:modelValue', {
 			...props.modelValue,
-			fileId: file.id,
+			fileId: file.value.id,
 		});
 	});
 }
@@ -54,7 +54,7 @@ onMounted(async () => {
 		os.api('drive/files/show', {
 			fileId: props.modelValue.fileId,
 		}).then(fileResponse => {
-			file = fileResponse;
+			file.value = fileResponse;
 		});
 	}
 });
diff --git a/packages/frontend/src/pages/page-editor/els/page-editor.el.note.vue b/packages/frontend/src/pages/page-editor/els/page-editor.el.note.vue
index fc436aad75..ce3980ac8d 100644
--- a/packages/frontend/src/pages/page-editor/els/page-editor.el.note.vue
+++ b/packages/frontend/src/pages/page-editor/els/page-editor.el.note.vue
@@ -23,7 +23,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 /* eslint-disable vue/no-mutating-props */
-import { watch } from 'vue';
+import { watch, ref } from 'vue';
 import XContainer from '../page-editor.container.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
@@ -40,19 +40,19 @@ const emit = defineEmits<{
 	(ev: 'update:modelValue', value: any): void;
 }>();
 
-let id: any = $ref(props.modelValue.note);
-let note: any = $ref(null);
+const id = ref<any>(props.modelValue.note);
+const note = ref<any>(null);
 
-watch($$(id), async () => {
-	if (id && (id.startsWith('http://') || id.startsWith('https://'))) {
-		id = (id.endsWith('/') ? id.slice(0, -1) : id).split('/').pop();
+watch(id, async () => {
+	if (id.value && (id.value.startsWith('http://') || id.value.startsWith('https://'))) {
+		id.value = (id.value.endsWith('/') ? id.value.slice(0, -1) : id.value).split('/').pop();
 	}
 
 	emit('update:modelValue', {
 		...props.modelValue,
-		note: id,
+		note: id.value,
 	});
-	note = await os.api('notes/show', { noteId: id });
+	note.value = await os.api('notes/show', { noteId: id.value });
 }, {
 	immediate: true,
 });
diff --git a/packages/frontend/src/pages/page-editor/els/page-editor.el.section.vue b/packages/frontend/src/pages/page-editor/els/page-editor.el.section.vue
index 31c2c96d7c..1220ca29a7 100644
--- a/packages/frontend/src/pages/page-editor/els/page-editor.el.section.vue
+++ b/packages/frontend/src/pages/page-editor/els/page-editor.el.section.vue
@@ -22,7 +22,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 /* eslint-disable vue/no-mutating-props */
-import { defineAsyncComponent, inject, onMounted, watch } from 'vue';
+import { defineAsyncComponent, inject, onMounted, watch, ref } from 'vue';
 import { v4 as uuid } from 'uuid';
 import XContainer from '../page-editor.container.vue';
 import * as os from '@/os.js';
@@ -42,12 +42,12 @@ const emit = defineEmits<{
 	(ev: 'update:modelValue', value: any): void;
 }>();
 
-const children = $ref(deepClone(props.modelValue.children ?? []));
+const children = ref(deepClone(props.modelValue.children ?? []));
 
-watch($$(children), () => {
+watch(children, () => {
 	emit('update:modelValue', {
 		...props.modelValue,
-		children,
+		children: children.value,
 	});
 }, {
 	deep: true,
@@ -75,7 +75,7 @@ async function add() {
 	if (canceled) return;
 
 	const id = uuid();
-	children.push({ id, type });
+	children.value.push({ id, type });
 }
 
 onMounted(() => {
diff --git a/packages/frontend/src/pages/page-editor/els/page-editor.el.text.vue b/packages/frontend/src/pages/page-editor/els/page-editor.el.text.vue
index 2ecf5790b8..4f47a77bdd 100644
--- a/packages/frontend/src/pages/page-editor/els/page-editor.el.text.vue
+++ b/packages/frontend/src/pages/page-editor/els/page-editor.el.text.vue
@@ -16,7 +16,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 /* eslint-disable vue/no-mutating-props */
-import { watch } from 'vue';
+import { watch, ref } from 'vue';
 import XContainer from '../page-editor.container.vue';
 import { i18n } from '@/i18n.js';
 
@@ -28,12 +28,12 @@ const emit = defineEmits<{
 	(ev: 'update:modelValue', value: any): void;
 }>();
 
-const text = $ref(props.modelValue.text ?? '');
+const text = ref(props.modelValue.text ?? '');
 
-watch($$(text), () => {
+watch(text, () => {
 	emit('update:modelValue', {
 		...props.modelValue,
-		text,
+		text: text.value,
 	});
 });
 </script>
diff --git a/packages/frontend/src/pages/page-editor/page-editor.vue b/packages/frontend/src/pages/page-editor/page-editor.vue
index dc749c292e..e95dd1f39e 100644
--- a/packages/frontend/src/pages/page-editor/page-editor.vue
+++ b/packages/frontend/src/pages/page-editor/page-editor.vue
@@ -61,7 +61,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, provide, watch } from 'vue';
+import { computed, provide, watch, ref } from 'vue';
 import { v4 as uuid } from 'uuid';
 import XBlocks from './page-editor.blocks.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -82,47 +82,47 @@ const props = defineProps<{
 	initUser?: string;
 }>();
 
-let tab = $ref('settings');
-let author = $ref($i);
-let readonly = $ref(false);
-let page = $ref(null);
-let pageId = $ref(null);
-let currentName = $ref(null);
-let title = $ref('');
-let summary = $ref(null);
-let name = $ref(Date.now().toString());
-let eyeCatchingImage = $ref(null);
-let eyeCatchingImageId = $ref(null);
-let font = $ref('sans-serif');
-let content = $ref([]);
-let alignCenter = $ref(false);
-let hideTitleWhenPinned = $ref(false);
+const tab = ref('settings');
+const author = ref($i);
+const readonly = ref(false);
+const page = ref(null);
+const pageId = ref(null);
+const currentName = ref(null);
+const title = ref('');
+const summary = ref(null);
+const name = ref(Date.now().toString());
+const eyeCatchingImage = ref(null);
+const eyeCatchingImageId = ref(null);
+const font = ref('sans-serif');
+const content = ref([]);
+const alignCenter = ref(false);
+const hideTitleWhenPinned = ref(false);
 
-provide('readonly', readonly);
+provide('readonly', readonly.value);
 provide('getPageBlockList', getPageBlockList);
 
-watch($$(eyeCatchingImageId), async () => {
-	if (eyeCatchingImageId == null) {
-		eyeCatchingImage = null;
+watch(eyeCatchingImageId, async () => {
+	if (eyeCatchingImageId.value == null) {
+		eyeCatchingImage.value = null;
 	} else {
-		eyeCatchingImage = await os.api('drive/files/show', {
-			fileId: eyeCatchingImageId,
+		eyeCatchingImage.value = await os.api('drive/files/show', {
+			fileId: eyeCatchingImageId.value,
 		});
 	}
 });
 
 function getSaveOptions() {
 	return {
-		title: title.trim(),
-		name: name.trim(),
-		summary: summary,
-		font: font,
+		title: title.value.trim(),
+		name: name.value.trim(),
+		summary: summary.value,
+		font: font.value,
 		script: '',
-		hideTitleWhenPinned: hideTitleWhenPinned,
-		alignCenter: alignCenter,
-		content: content,
+		hideTitleWhenPinned: hideTitleWhenPinned.value,
+		alignCenter: alignCenter.value,
+		content: content.value,
 		variables: [],
-		eyeCatchingImageId: eyeCatchingImageId,
+		eyeCatchingImageId: eyeCatchingImageId.value,
 	};
 }
 
@@ -146,11 +146,11 @@ function save() {
 		}
 	};
 
-	if (pageId) {
-		options.pageId = pageId;
+	if (pageId.value) {
+		options.pageId = pageId.value;
 		os.api('pages/update', options)
 			.then(page => {
-				currentName = name.trim();
+				currentName.value = name.value.trim();
 				os.alert({
 					type: 'success',
 					text: i18n.ts._pages.updated,
@@ -159,13 +159,13 @@ function save() {
 	} else {
 		os.api('pages/create', options)
 			.then(created => {
-				pageId = created.id;
-				currentName = name.trim();
+				pageId.value = created.id;
+				currentName.value = name.value.trim();
 				os.alert({
 					type: 'success',
 					text: i18n.ts._pages.created,
 				});
-				mainRouter.push(`/pages/edit/${pageId}`);
+				mainRouter.push(`/pages/edit/${pageId.value}`);
 			}).catch(onError);
 	}
 }
@@ -173,11 +173,11 @@ function save() {
 function del() {
 	os.confirm({
 		type: 'warning',
-		text: i18n.t('removeAreYouSure', { x: title.trim() }),
+		text: i18n.t('removeAreYouSure', { x: title.value.trim() }),
 	}).then(({ canceled }) => {
 		if (canceled) return;
 		os.api('pages/delete', {
-			pageId: pageId,
+			pageId: pageId.value,
 		}).then(() => {
 			os.alert({
 				type: 'success',
@@ -189,16 +189,16 @@ function del() {
 }
 
 function duplicate() {
-	title = title + ' - copy';
-	name = name + '-copy';
+	title.value = title.value + ' - copy';
+	name.value = name.value + '-copy';
 	os.api('pages/create', getSaveOptions()).then(created => {
-		pageId = created.id;
-		currentName = name.trim();
+		pageId.value = created.id;
+		currentName.value = name.value.trim();
 		os.alert({
 			type: 'success',
 			text: i18n.ts._pages.created,
 		});
-		mainRouter.push(`/pages/edit/${pageId}`);
+		mainRouter.push(`/pages/edit/${pageId.value}`);
 	});
 }
 
@@ -211,7 +211,7 @@ async function add() {
 	if (canceled) return;
 
 	const id = uuid();
-	content.push({ id, type });
+	content.value.push({ id, type });
 }
 
 function getPageBlockList() {
@@ -225,42 +225,42 @@ function getPageBlockList() {
 
 function setEyeCatchingImage(img) {
 	selectFile(img.currentTarget ?? img.target, null).then(file => {
-		eyeCatchingImageId = file.id;
+		eyeCatchingImageId.value = file.id;
 	});
 }
 
 function removeEyeCatchingImage() {
-	eyeCatchingImageId = null;
+	eyeCatchingImageId.value = null;
 }
 
 async function init() {
 	if (props.initPageId) {
-		page = await os.api('pages/show', {
+		page.value = await os.api('pages/show', {
 			pageId: props.initPageId,
 		});
 	} else if (props.initPageName && props.initUser) {
-		page = await os.api('pages/show', {
+		page.value = await os.api('pages/show', {
 			name: props.initPageName,
 			username: props.initUser,
 		});
-		readonly = true;
+		readonly.value = true;
 	}
 
-	if (page) {
-		author = page.user;
-		pageId = page.id;
-		title = page.title;
-		name = page.name;
-		currentName = page.name;
-		summary = page.summary;
-		font = page.font;
-		hideTitleWhenPinned = page.hideTitleWhenPinned;
-		alignCenter = page.alignCenter;
-		content = page.content;
-		eyeCatchingImageId = page.eyeCatchingImageId;
+	if (page.value) {
+		author.value = page.value.user;
+		pageId.value = page.value.id;
+		title.value = page.value.title;
+		name.value = page.value.name;
+		currentName.value = page.value.name;
+		summary.value = page.value.summary;
+		font.value = page.value.font;
+		hideTitleWhenPinned.value = page.value.hideTitleWhenPinned;
+		alignCenter.value = page.value.alignCenter;
+		content.value = page.value.content;
+		eyeCatchingImageId.value = page.value.eyeCatchingImageId;
 	} else {
 		const id = uuid();
-		content = [{
+		content.value = [{
 			id,
 			type: 'text',
 			text: 'Hello World!',
@@ -270,9 +270,9 @@ async function init() {
 
 init();
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'settings',
 	title: i18n.ts._pages.pageSetting,
 	icon: 'ti ti-settings',
diff --git a/packages/frontend/src/pages/page.vue b/packages/frontend/src/pages/page.vue
index 2bc053ccfe..a342dff41f 100644
--- a/packages/frontend/src/pages/page.vue
+++ b/packages/frontend/src/pages/page.vue
@@ -76,7 +76,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import XPage from '@/components/page/page.vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -99,24 +99,24 @@ const props = defineProps<{
 	username: string;
 }>();
 
-let page = $ref(null);
-let error = $ref(null);
+const page = ref(null);
+const error = ref(null);
 const otherPostsPagination = {
 	endpoint: 'users/pages' as const,
 	limit: 6,
 	params: computed(() => ({
-		userId: page.user.id,
+		userId: page.value.user.id,
 	})),
 };
-const path = $computed(() => props.username + '/' + props.pageName);
+const path = computed(() => props.username + '/' + props.pageName);
 
 function fetchPage() {
-	page = null;
+	page.value = null;
 	os.api('pages/show', {
 		name: props.pageName,
 		username: props.username,
 	}).then(async _page => {
-		page = _page;
+		page.value = _page;
 
 		// plugin
 		if (pageViewInterruptors.length > 0) {
@@ -124,38 +124,38 @@ function fetchPage() {
 			for (const interruptor of pageViewInterruptors) {
 				result = await interruptor.handler(result);
 			}
-			page = result;
+			page.value = result;
 		}
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
 function share() {
 	navigator.share({
-		title: page.title ?? page.name,
-		text: page.summary,
-		url: `${url}/@${page.user.username}/pages/${page.name}`,
+		title: page.value.title ?? page.value.name,
+		text: page.value.summary,
+		url: `${url}/@${page.value.user.username}/pages/${page.value.name}`,
 	});
 }
 
 function copyLink() {
-	copyToClipboard(`${url}/@${page.user.username}/pages/${page.name}`);
+	copyToClipboard(`${url}/@${page.value.user.username}/pages/${page.value.name}`);
 	os.success();
 }
 
 function shareWithNote() {
 	os.post({
-		initialText: `${page.title || page.name} ${url}/@${page.user.username}/pages/${page.name}`,
+		initialText: `${page.value.title || page.value.name} ${url}/@${page.value.user.username}/pages/${page.value.name}`,
 	});
 }
 
 function like() {
 	os.apiWithDialog('pages/like', {
-		pageId: page.id,
+		pageId: page.value.id,
 	}).then(() => {
-		page.isLiked = true;
-		page.likedCount++;
+		page.value.isLiked = true;
+		page.value.likedCount++;
 	});
 }
 
@@ -166,32 +166,32 @@ async function unlike() {
 	});
 	if (confirm.canceled) return;
 	os.apiWithDialog('pages/unlike', {
-		pageId: page.id,
+		pageId: page.value.id,
 	}).then(() => {
-		page.isLiked = false;
-		page.likedCount--;
+		page.value.isLiked = false;
+		page.value.likedCount--;
 	});
 }
 
 function pin(pin) {
 	os.apiWithDialog('i/update', {
-		pinnedPageId: pin ? page.id : null,
+		pinnedPageId: pin ? page.value.id : null,
 	});
 }
 
-watch(() => path, fetchPage, { immediate: true });
+watch(() => path.value, fetchPage, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => page ? {
-	title: page.title || page.name,
-	avatar: page.user,
-	path: `/@${page.user.username}/pages/${page.name}`,
+definePageMetadata(computed(() => page.value ? {
+	title: page.value.title || page.value.name,
+	avatar: page.value.user,
+	path: `/@${page.value.user.username}/pages/${page.value.name}`,
 	share: {
-		title: page.title || page.name,
-		text: page.summary,
+		title: page.value.title || page.value.name,
+		text: page.value.summary,
 	},
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/pages.vue b/packages/frontend/src/pages/pages.vue
index 6f40b24771..bc51b55c7f 100644
--- a/packages/frontend/src/pages/pages.vue
+++ b/packages/frontend/src/pages/pages.vue
@@ -36,7 +36,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import MkPagePreview from '@/components/MkPagePreview.vue';
 import MkPagination from '@/components/MkPagination.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -46,7 +46,7 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 
 const router = useRouter();
 
-let tab = $ref('featured');
+const tab = ref('featured');
 
 const featuredPagesPagination = {
 	endpoint: 'pages/featured' as const,
@@ -65,13 +65,13 @@ function create() {
 	router.push('/pages/new');
 }
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	icon: 'ti ti-plus',
 	text: i18n.ts.create,
 	handler: create,
 }]);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'featured',
 	title: i18n.ts._pages.featured,
 	icon: 'ti ti-flare',
diff --git a/packages/frontend/src/pages/registry.keys.vue b/packages/frontend/src/pages/registry.keys.vue
index 387cb2f1f7..49a8642fc4 100644
--- a/packages/frontend/src/pages/registry.keys.vue
+++ b/packages/frontend/src/pages/registry.keys.vue
@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, computed, ref } from 'vue';
 import JSON5 from 'json5';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -49,16 +49,16 @@ const props = defineProps<{
 	domain: string;
 }>();
 
-const scope = $computed(() => props.path ? props.path.split('/') : []);
+const scope = computed(() => props.path ? props.path.split('/') : []);
 
-let keys = $ref(null);
+const keys = ref(null);
 
 function fetchKeys() {
 	os.api('i/registry/keys-with-type', {
-		scope: scope,
+		scope: scope.value,
 		domain: props.domain === '@' ? null : props.domain,
 	}).then(res => {
-		keys = Object.entries(res).sort((a, b) => a[0].localeCompare(b[0]));
+		keys.value = Object.entries(res).sort((a, b) => a[0].localeCompare(b[0]));
 	});
 }
 
@@ -76,7 +76,7 @@ async function createKey() {
 		scope: {
 			type: 'string',
 			label: i18n.ts._registry.scope,
-			default: scope.join('/'),
+			default: scope.value.join('/'),
 		},
 	});
 	if (canceled) return;
@@ -91,9 +91,9 @@ async function createKey() {
 
 watch(() => props.path, fetchKeys, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.registry,
diff --git a/packages/frontend/src/pages/registry.value.vue b/packages/frontend/src/pages/registry.value.vue
index 68d6c8c1a0..29406ec83c 100644
--- a/packages/frontend/src/pages/registry.value.vue
+++ b/packages/frontend/src/pages/registry.value.vue
@@ -45,7 +45,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, computed, ref } from 'vue';
 import JSON5 from 'json5';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -61,26 +61,26 @@ const props = defineProps<{
 	domain: string;
 }>();
 
-const scope = $computed(() => props.path.split('/').slice(0, -1));
-const key = $computed(() => props.path.split('/').at(-1));
+const scope = computed(() => props.path.split('/').slice(0, -1));
+const key = computed(() => props.path.split('/').at(-1));
 
-let value = $ref(null);
-let valueForEditor = $ref(null);
+const value = ref(null);
+const valueForEditor = ref(null);
 
 function fetchValue() {
 	os.api('i/registry/get-detail', {
-		scope,
-		key,
+		scope: scope.value,
+		key: key.value,
 		domain: props.domain === '@' ? null : props.domain,
 	}).then(res => {
-		value = res;
-		valueForEditor = JSON5.stringify(res.value, null, '\t');
+		value.value = res;
+		valueForEditor.value = JSON5.stringify(res.value, null, '\t');
 	});
 }
 
 async function save() {
 	try {
-		JSON5.parse(valueForEditor);
+		JSON5.parse(valueForEditor.value);
 	} catch (err) {
 		os.alert({
 			type: 'error',
@@ -94,9 +94,9 @@ async function save() {
 	}).then(({ canceled }) => {
 		if (canceled) return;
 		os.apiWithDialog('i/registry/set', {
-			scope,
-			key,
-			value: JSON5.parse(valueForEditor),
+			scope: scope.value,
+			key: key.value,
+			value: JSON5.parse(valueForEditor.value),
 			domain: props.domain === '@' ? null : props.domain,
 		});
 	});
@@ -109,8 +109,8 @@ function del() {
 	}).then(({ canceled }) => {
 		if (canceled) return;
 		os.apiWithDialog('i/registry/remove', {
-			scope,
-			key,
+			scope: scope.value,
+			key: key.value,
 			domain: props.domain === '@' ? null : props.domain,
 		});
 	});
@@ -118,9 +118,9 @@ function del() {
 
 watch(() => props.path, fetchValue, { immediate: true });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.registry,
diff --git a/packages/frontend/src/pages/registry.vue b/packages/frontend/src/pages/registry.vue
index d0a3df5deb..e8bd006373 100644
--- a/packages/frontend/src/pages/registry.vue
+++ b/packages/frontend/src/pages/registry.vue
@@ -22,6 +22,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { ref, computed } from 'vue';
 import JSON5 from 'json5';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -30,11 +31,11 @@ import FormLink from '@/components/form/link.vue';
 import FormSection from '@/components/form/section.vue';
 import MkButton from '@/components/MkButton.vue';
 
-let scopesWithDomain = $ref(null);
+const scopesWithDomain = ref(null);
 
 function fetchScopes() {
 	os.api('i/registry/scopes-with-domain').then(res => {
-		scopesWithDomain = res;
+		scopesWithDomain.value = res;
 	});
 }
 
@@ -66,9 +67,9 @@ async function createKey() {
 
 fetchScopes();
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.registry,
diff --git a/packages/frontend/src/pages/reset-password.vue b/packages/frontend/src/pages/reset-password.vue
index 718ca7d773..c9d193b787 100644
--- a/packages/frontend/src/pages/reset-password.vue
+++ b/packages/frontend/src/pages/reset-password.vue
@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, onMounted } from 'vue';
+import { defineAsyncComponent, onMounted, ref, computed } from 'vue';
 import MkInput from '@/components/MkInput.vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -32,12 +32,12 @@ const props = defineProps<{
 	token?: string;
 }>();
 
-let password = $ref('');
+const password = ref('');
 
 async function save() {
 	await os.apiWithDialog('reset-password', {
 		token: props.token,
-		password: password,
+		password: password.value,
 	});
 	mainRouter.push('/');
 }
@@ -49,9 +49,9 @@ onMounted(() => {
 	}
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.resetPassword,
diff --git a/packages/frontend/src/pages/role.vue b/packages/frontend/src/pages/role.vue
index 1e3db42758..7d8785218f 100644
--- a/packages/frontend/src/pages/role.vue
+++ b/packages/frontend/src/pages/role.vue
@@ -36,7 +36,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import * as os from '@/os.js';
 import MkUserList from '@/components/MkUserList.vue';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
@@ -52,29 +52,29 @@ const props = withDefaults(defineProps<{
 	initialTab: 'users',
 });
 
-let tab = $ref(props.initialTab);
-let role = $ref();
-let error = $ref();
-let visible = $ref(false);
+const tab = ref(props.initialTab);
+const role = ref();
+const error = ref();
+const visible = ref(false);
 
 watch(() => props.role, () => {
 	os.api('roles/show', {
 		roleId: props.role,
 	}).then(res => {
-		role = res;
-		document.title = `${role?.name} | ${instanceName}`;
-		visible = res.isExplorable && res.isPublic;
+		role.value = res;
+		document.title = `${role.value?.name} | ${instanceName}`;
+		visible.value = res.isExplorable && res.isPublic;
 	}).catch((err) => {
 		if (err.code === 'NO_SUCH_ROLE') {
-			error = i18n.ts.noRole;
+			error.value = i18n.ts.noRole;
 		} else {
-			error = i18n.ts.somethingHappened;
+			error.value = i18n.ts.somethingHappened;
 		}
-		document.title = `${error} | ${instanceName}`;
+		document.title = `${error.value} | ${instanceName}`;
 	});
 }, { immediate: true });
 
-const users = $computed(() => ({
+const users = computed(() => ({
 	endpoint: 'roles/users' as const,
 	limit: 30,
 	params: {
@@ -82,7 +82,7 @@ const users = $computed(() => ({
 	},
 }));
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'users',
 	icon: 'ti ti-users',
 	title: i18n.ts.users,
@@ -93,7 +93,7 @@ const headerTabs = $computed(() => [{
 }]);
 
 definePageMetadata(computed(() => ({
-	title: role?.name,
+	title: role.value?.name,
 	icon: 'ti ti-badge',
 })));
 </script>
diff --git a/packages/frontend/src/pages/scratchpad.vue b/packages/frontend/src/pages/scratchpad.vue
index f8d3187bd4..1453bc1658 100644
--- a/packages/frontend/src/pages/scratchpad.vue
+++ b/packages/frontend/src/pages/scratchpad.vue
@@ -39,7 +39,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onDeactivated, onUnmounted, Ref, ref, watch } from 'vue';
+import { onDeactivated, onUnmounted, Ref, ref, watch, computed } from 'vue';
 import { Interpreter, Parser, utils } from '@syuilo/aiscript';
 import MkContainer from '@/components/MkContainer.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -59,8 +59,8 @@ let aiscript: Interpreter;
 const code = ref('');
 const logs = ref<any[]>([]);
 const root = ref<AsUiRoot>();
-let components: Ref<AsUiComponent>[] = $ref([]);
-let uiKey = $ref(0);
+const components = ref<Ref<AsUiComponent>[]>([]);
+const uiKey = ref(0);
 
 const saved = miLocalStorage.getItem('scratchpad');
 if (saved) {
@@ -74,15 +74,15 @@ watch(code, () => {
 async function run() {
 	if (aiscript) aiscript.abort();
 	root.value = undefined;
-	components = [];
-	uiKey++;
+	components.value = [];
+	uiKey.value++;
 	logs.value = [];
 	aiscript = new Interpreter(({
 		...createAiScriptEnv({
 			storageKey: 'widget',
 			token: $i?.token,
 		}),
-		...registerAsUiLib(components, (_root) => {
+		...registerAsUiLib(components.value, (_root) => {
 			root.value = _root.value;
 		}),
 	}), {
@@ -160,9 +160,9 @@ onUnmounted(() => {
 	if (aiscript) aiscript.abort();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.scratchpad,
diff --git a/packages/frontend/src/pages/search.note.vue b/packages/frontend/src/pages/search.note.vue
index c1692d8be2..3e74a6f591 100644
--- a/packages/frontend/src/pages/search.note.vue
+++ b/packages/frontend/src/pages/search.note.vue
@@ -42,7 +42,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted } from 'vue';
+import { computed, onMounted, ref } from 'vue';
 import MkNotes from '@/components/MkNotes.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkRadios from '@/components/MkRadios.vue';
@@ -59,21 +59,21 @@ import MkFolder from '@/components/MkFolder.vue';
 
 const router = useRouter();
 
-let key = $ref(0);
-let searchQuery = $ref('');
-let searchOrigin = $ref('combined');
-let notePagination = $ref();
-let user = $ref(null);
-let isLocalOnly = $ref(false);
+const key = ref(0);
+const searchQuery = ref('');
+const searchOrigin = ref('combined');
+const notePagination = ref();
+const user = ref(null);
+const isLocalOnly = ref(false);
 
 function selectUser() {
 	os.selectUser().then(_user => {
-		user = _user;
+		user.value = _user;
 	});
 }
 
 async function search() {
-	const query = searchQuery.toString().trim();
+	const query = searchQuery.value.toString().trim();
 
 	if (query == null || query === '') return;
 
@@ -95,17 +95,17 @@ async function search() {
 		return;
 	}
 
-	notePagination = {
+	notePagination.value = {
 		endpoint: 'notes/search',
 		limit: 10,
 		params: {
-			query: searchQuery,
-			userId: user ? user.id : null,
+			query: searchQuery.value,
+			userId: user.value ? user.value.id : null,
 		},
 	};
 
-	if (isLocalOnly) notePagination.params.host = '.';
+	if (isLocalOnly.value) notePagination.value.params.host = '.';
 
-	key++;
+	key.value++;
 }
 </script>
diff --git a/packages/frontend/src/pages/search.user.vue b/packages/frontend/src/pages/search.user.vue
index 1a7501adc6..39707e634c 100644
--- a/packages/frontend/src/pages/search.user.vue
+++ b/packages/frontend/src/pages/search.user.vue
@@ -25,7 +25,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, defineAsyncComponent, onMounted } from 'vue';
+import { computed, defineAsyncComponent, onMounted, ref } from 'vue';
 import MkUserList from '@/components/MkUserList.vue';
 import MkInput from '@/components/MkInput.vue';
 import MkRadios from '@/components/MkRadios.vue';
@@ -40,13 +40,13 @@ import { useRouter } from '@/router.js';
 
 const router = useRouter();
 
-let key = $ref('');
-let searchQuery = $ref('');
-let searchOrigin = $ref('combined');
-let userPagination = $ref();
+const key = ref('');
+const searchQuery = ref('');
+const searchOrigin = ref('combined');
+const userPagination = ref();
 
 async function search() {
-	const query = searchQuery.toString().trim();
+	const query = searchQuery.value.toString().trim();
 
 	if (query == null || query === '') return;
 
@@ -68,15 +68,15 @@ async function search() {
 		return;
 	}
 
-	userPagination = {
+	userPagination.value = {
 		endpoint: 'users/search',
 		limit: 10,
 		params: {
 			query: query,
-			origin: searchOrigin,
+			origin: searchOrigin.value,
 		},
 	};
 
-	key = query;
+	key.value = query;
 }
 </script>
diff --git a/packages/frontend/src/pages/search.vue b/packages/frontend/src/pages/search.vue
index e205fe850f..c47414e573 100644
--- a/packages/frontend/src/pages/search.vue
+++ b/packages/frontend/src/pages/search.vue
@@ -23,7 +23,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, defineAsyncComponent, onMounted } from 'vue';
+import { computed, defineAsyncComponent, onMounted, ref } from 'vue';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import * as os from '@/os.js';
@@ -34,13 +34,13 @@ import MkInfo from '@/components/MkInfo.vue';
 const XNote = defineAsyncComponent(() => import('./search.note.vue'));
 const XUser = defineAsyncComponent(() => import('./search.user.vue'));
 
-let tab = $ref('note');
+const tab = ref('note');
 
 const notesSearchAvailable = (($i == null && instance.policies.canSearchNotes) || ($i != null && $i.policies.canSearchNotes));
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => [{
+const headerTabs = computed(() => [{
 	key: 'note',
 	title: i18n.ts.notes,
 	icon: 'ti ti-pencil',
diff --git a/packages/frontend/src/pages/settings/2fa.vue b/packages/frontend/src/pages/settings/2fa.vue
index 8a89a3a86d..d9a59cdc35 100644
--- a/packages/frontend/src/pages/settings/2fa.vue
+++ b/packages/frontend/src/pages/settings/2fa.vue
@@ -72,7 +72,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref, defineAsyncComponent } from 'vue';
+import { ref, defineAsyncComponent, computed } from 'vue';
 import { supported as webAuthnSupported, create as webAuthnCreate, parseCreationOptionsFromJSON } from '@github/webauthn-json/browser-ponyfill';
 import MkButton from '@/components/MkButton.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -91,7 +91,7 @@ withDefaults(defineProps<{
 	first: false,
 });
 
-const usePasswordLessLogin = $computed(() => $i?.usePasswordLessLogin ?? false);
+const usePasswordLessLogin = computed(() => $i?.usePasswordLessLogin ?? false);
 
 async function registerTOTP(): Promise<void> {
 	const auth = await os.authenticateDialog();
diff --git a/packages/frontend/src/pages/settings/accounts.vue b/packages/frontend/src/pages/settings/accounts.vue
index df8c7b440a..6ed04ecf9e 100644
--- a/packages/frontend/src/pages/settings/accounts.vue
+++ b/packages/frontend/src/pages/settings/accounts.vue
@@ -19,7 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, ref } from 'vue';
+import { defineAsyncComponent, ref, computed } from 'vue';
 import type * as Misskey from 'misskey-js';
 import FormSuspense from '@/components/form/suspense.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -101,9 +101,9 @@ function switchAccountWithToken(token: string) {
 	login(token);
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.accounts,
diff --git a/packages/frontend/src/pages/settings/api.vue b/packages/frontend/src/pages/settings/api.vue
index e0266bccba..eee7884aaa 100644
--- a/packages/frontend/src/pages/settings/api.vue
+++ b/packages/frontend/src/pages/settings/api.vue
@@ -12,7 +12,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, ref } from 'vue';
+import { defineAsyncComponent, ref, computed } from 'vue';
 import FormLink from '@/components/form/link.vue';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
@@ -40,9 +40,9 @@ function generateToken() {
 	}, 'closed');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'API',
diff --git a/packages/frontend/src/pages/settings/apps.vue b/packages/frontend/src/pages/settings/apps.vue
index 7fd4ed61c9..f461271f0b 100644
--- a/packages/frontend/src/pages/settings/apps.vue
+++ b/packages/frontend/src/pages/settings/apps.vue
@@ -45,7 +45,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import FormPagination from '@/components/MkPagination.vue';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
@@ -71,9 +71,9 @@ function revoke(token) {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.installedApps,
diff --git a/packages/frontend/src/pages/settings/custom-css.vue b/packages/frontend/src/pages/settings/custom-css.vue
index d58f959fc5..e33e778246 100644
--- a/packages/frontend/src/pages/settings/custom-css.vue
+++ b/packages/frontend/src/pages/settings/custom-css.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref, watch } from 'vue';
+import { ref, watch, computed } from 'vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import FormInfo from '@/components/MkInfo.vue';
 import * as os from '@/os.js';
@@ -41,9 +41,9 @@ watch(localCustomCss, async () => {
 	await apply();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.customCss,
diff --git a/packages/frontend/src/pages/settings/deck.vue b/packages/frontend/src/pages/settings/deck.vue
index 9fecc65d6d..b681e0d159 100644
--- a/packages/frontend/src/pages/settings/deck.vue
+++ b/packages/frontend/src/pages/settings/deck.vue
@@ -32,9 +32,9 @@ const useSimpleUiForNonRootPages = computed(deckStore.makeGetterSetter('useSimpl
 const alwaysShowMainColumn = computed(deckStore.makeGetterSetter('alwaysShowMainColumn'));
 const columnAlign = computed(deckStore.makeGetterSetter('columnAlign'));
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.deck,
diff --git a/packages/frontend/src/pages/settings/drive-cleaner.vue b/packages/frontend/src/pages/settings/drive-cleaner.vue
index 899d824bf9..8da60ef504 100644
--- a/packages/frontend/src/pages/settings/drive-cleaner.vue
+++ b/packages/frontend/src/pages/settings/drive-cleaner.vue
@@ -60,7 +60,7 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkSelect from '@/components/MkSelect.vue';
 import { getDriveFileMenu } from '@/scripts/get-drive-file-menu.js';
 
-let sortMode = ref('+size');
+const sortMode = ref('+size');
 const pagination = {
 	endpoint: 'drive/files' as const,
 	limit: 10,
diff --git a/packages/frontend/src/pages/settings/drive.vue b/packages/frontend/src/pages/settings/drive.vue
index 01a0711682..8f5c313d16 100644
--- a/packages/frontend/src/pages/settings/drive.vue
+++ b/packages/frontend/src/pages/settings/drive.vue
@@ -76,8 +76,8 @@ const fetching = ref(true);
 const usage = ref<any>(null);
 const capacity = ref<any>(null);
 const uploadFolder = ref<any>(null);
-let alwaysMarkNsfw = $ref($i.alwaysMarkNsfw);
-let autoSensitive = $ref($i.autoSensitive);
+const alwaysMarkNsfw = ref($i.alwaysMarkNsfw);
+const autoSensitive = ref($i.autoSensitive);
 
 const meterStyle = computed(() => {
 	return {
@@ -122,21 +122,21 @@ function chooseUploadFolder() {
 
 function saveProfile() {
 	os.api('i/update', {
-		alwaysMarkNsfw: !!alwaysMarkNsfw,
-		autoSensitive: !!autoSensitive,
+		alwaysMarkNsfw: !!alwaysMarkNsfw.value,
+		autoSensitive: !!autoSensitive.value,
 	}).catch(err => {
 		os.alert({
 			type: 'error',
 			title: i18n.ts.error,
 			text: err.message,
 		});
-		alwaysMarkNsfw = true;
+		alwaysMarkNsfw.value = true;
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.drive,
diff --git a/packages/frontend/src/pages/settings/email.vue b/packages/frontend/src/pages/settings/email.vue
index 82b7f0ae4c..309e025ada 100644
--- a/packages/frontend/src/pages/settings/email.vue
+++ b/packages/frontend/src/pages/settings/email.vue
@@ -48,7 +48,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted, ref, watch } from 'vue';
+import { onMounted, ref, watch, computed } from 'vue';
 import FormSection from '@/components/form/section.vue';
 import MkInfo from '@/components/MkInfo.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -106,9 +106,9 @@ onMounted(() => {
 	});
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.email,
diff --git a/packages/frontend/src/pages/settings/general.vue b/packages/frontend/src/pages/settings/general.vue
index 717021abd0..f108a0c64e 100644
--- a/packages/frontend/src/pages/settings/general.vue
+++ b/packages/frontend/src/pages/settings/general.vue
@@ -427,9 +427,9 @@ watch(dataSaver, (to) => {
 	deep: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.general,
diff --git a/packages/frontend/src/pages/settings/import-export.vue b/packages/frontend/src/pages/settings/import-export.vue
index 0f01fda26f..858983a214 100644
--- a/packages/frontend/src/pages/settings/import-export.vue
+++ b/packages/frontend/src/pages/settings/import-export.vue
@@ -111,7 +111,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import FormSection from '@/components/form/section.vue';
 import MkFolder from '@/components/MkFolder.vue';
@@ -208,9 +208,9 @@ const importAntennas = async (ev) => {
 	os.api('i/import-antennas', { fileId: file.id }).then(onImportSuccess).catch(onError);
 };
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.importAndExport,
diff --git a/packages/frontend/src/pages/settings/index.vue b/packages/frontend/src/pages/settings/index.vue
index 5a1a9aedb3..49290e7c22 100644
--- a/packages/frontend/src/pages/settings/index.vue
+++ b/packages/frontend/src/pages/settings/index.vue
@@ -50,14 +50,14 @@ const childInfo = ref(null);
 
 const router = useRouter();
 
-let narrow = $ref(false);
+const narrow = ref(false);
 const NARROW_THRESHOLD = 600;
 
-let currentPage = $computed(() => router.currentRef.value.child);
+const currentPage = computed(() => router.currentRef.value.child);
 
 const ro = new ResizeObserver((entries, observer) => {
 	if (entries.length === 0) return;
-	narrow = entries[0].borderBoxSize[0].inlineSize < NARROW_THRESHOLD;
+	narrow.value = entries[0].borderBoxSize[0].inlineSize < NARROW_THRESHOLD;
 });
 
 const menuDef = computed(() => [{
@@ -66,37 +66,37 @@ const menuDef = computed(() => [{
 		icon: 'ti ti-user',
 		text: i18n.ts.profile,
 		to: '/settings/profile',
-		active: currentPage?.route.name === 'profile',
+		active: currentPage.value?.route.name === 'profile',
 	}, {
 		icon: 'ti ti-lock-open',
 		text: i18n.ts.privacy,
 		to: '/settings/privacy',
-		active: currentPage?.route.name === 'privacy',
+		active: currentPage.value?.route.name === 'privacy',
 	}, {
 		icon: 'ti ti-mood-happy',
 		text: i18n.ts.reaction,
 		to: '/settings/reaction',
-		active: currentPage?.route.name === 'reaction',
+		active: currentPage.value?.route.name === 'reaction',
 	}, {
 		icon: 'ti ti-cloud',
 		text: i18n.ts.drive,
 		to: '/settings/drive',
-		active: currentPage?.route.name === 'drive',
+		active: currentPage.value?.route.name === 'drive',
 	}, {
 		icon: 'ti ti-bell',
 		text: i18n.ts.notifications,
 		to: '/settings/notifications',
-		active: currentPage?.route.name === 'notifications',
+		active: currentPage.value?.route.name === 'notifications',
 	}, {
 		icon: 'ti ti-mail',
 		text: i18n.ts.email,
 		to: '/settings/email',
-		active: currentPage?.route.name === 'email',
+		active: currentPage.value?.route.name === 'email',
 	}, {
 		icon: 'ti ti-lock',
 		text: i18n.ts.security,
 		to: '/settings/security',
-		active: currentPage?.route.name === 'security',
+		active: currentPage.value?.route.name === 'security',
 	}],
 }, {
 	title: i18n.ts.clientSettings,
@@ -104,32 +104,32 @@ const menuDef = computed(() => [{
 		icon: 'ti ti-adjustments',
 		text: i18n.ts.general,
 		to: '/settings/general',
-		active: currentPage?.route.name === 'general',
+		active: currentPage.value?.route.name === 'general',
 	}, {
 		icon: 'ti ti-palette',
 		text: i18n.ts.theme,
 		to: '/settings/theme',
-		active: currentPage?.route.name === 'theme',
+		active: currentPage.value?.route.name === 'theme',
 	}, {
 		icon: 'ti ti-menu-2',
 		text: i18n.ts.navbar,
 		to: '/settings/navbar',
-		active: currentPage?.route.name === 'navbar',
+		active: currentPage.value?.route.name === 'navbar',
 	}, {
 		icon: 'ti ti-equal-double',
 		text: i18n.ts.statusbar,
 		to: '/settings/statusbar',
-		active: currentPage?.route.name === 'statusbar',
+		active: currentPage.value?.route.name === 'statusbar',
 	}, {
 		icon: 'ti ti-music',
 		text: i18n.ts.sounds,
 		to: '/settings/sounds',
-		active: currentPage?.route.name === 'sounds',
+		active: currentPage.value?.route.name === 'sounds',
 	}, {
 		icon: 'ti ti-plug',
 		text: i18n.ts.plugins,
 		to: '/settings/plugin',
-		active: currentPage?.route.name === 'plugin',
+		active: currentPage.value?.route.name === 'plugin',
 	}],
 }, {
 	title: i18n.ts.otherSettings,
@@ -137,44 +137,44 @@ const menuDef = computed(() => [{
 		icon: 'ti ti-badges',
 		text: i18n.ts.roles,
 		to: '/settings/roles',
-		active: currentPage?.route.name === 'roles',
+		active: currentPage.value?.route.name === 'roles',
 	}, {
 		icon: 'ti ti-ban',
 		text: i18n.ts.muteAndBlock,
 		to: '/settings/mute-block',
-		active: currentPage?.route.name === 'mute-block',
+		active: currentPage.value?.route.name === 'mute-block',
 	}, {
 		icon: 'ti ti-api',
 		text: 'API',
 		to: '/settings/api',
-		active: currentPage?.route.name === 'api',
+		active: currentPage.value?.route.name === 'api',
 	}, {
 		icon: 'ti ti-webhook',
 		text: 'Webhook',
 		to: '/settings/webhook',
-		active: currentPage?.route.name === 'webhook',
+		active: currentPage.value?.route.name === 'webhook',
 	}, {
 		icon: 'ti ti-package',
 		text: i18n.ts.importAndExport,
 		to: '/settings/import-export',
-		active: currentPage?.route.name === 'import-export',
+		active: currentPage.value?.route.name === 'import-export',
 	}, {
 		icon: 'ti ti-plane',
 		text: `${i18n.ts.accountMigration}`,
 		to: '/settings/migration',
-		active: currentPage?.route.name === 'migration',
+		active: currentPage.value?.route.name === 'migration',
 	}, {
 		icon: 'ti ti-dots',
 		text: i18n.ts.other,
 		to: '/settings/other',
-		active: currentPage?.route.name === 'other',
+		active: currentPage.value?.route.name === 'other',
 	}],
 }, {
 	items: [{
 		icon: 'ti ti-device-floppy',
 		text: i18n.ts.preferencesBackups,
 		to: '/settings/preferences-backups',
-		active: currentPage?.route.name === 'preferences-backups',
+		active: currentPage.value?.route.name === 'preferences-backups',
 	}, {
 		type: 'button',
 		icon: 'ti ti-trash',
@@ -198,23 +198,23 @@ const menuDef = computed(() => [{
 	}],
 }]);
 
-watch($$(narrow), () => {
+watch(narrow, () => {
 });
 
 onMounted(() => {
 	ro.observe(el.value);
 
-	narrow = el.value.offsetWidth < NARROW_THRESHOLD;
+	narrow.value = el.value.offsetWidth < NARROW_THRESHOLD;
 
-	if (!narrow && currentPage?.route.name == null) {
+	if (!narrow.value && currentPage.value?.route.name == null) {
 		router.replace('/settings/profile');
 	}
 });
 
 onActivated(() => {
-	narrow = el.value.offsetWidth < NARROW_THRESHOLD;
+	narrow.value = el.value.offsetWidth < NARROW_THRESHOLD;
 
-	if (!narrow && currentPage?.route.name == null) {
+	if (!narrow.value && currentPage.value?.route.name == null) {
 		router.replace('/settings/profile');
 	}
 });
@@ -224,7 +224,7 @@ onUnmounted(() => {
 });
 
 watch(router.currentRef, (to) => {
-	if (to.route.name === 'settings' && to.child?.route.name == null && !narrow) {
+	if (to.route.name === 'settings' && to.child?.route.name == null && !narrow.value) {
 		router.replace('/settings/profile');
 	}
 });
@@ -239,9 +239,9 @@ provideMetadataReceiver((info) => {
 	}
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(INFO);
 // w 890
diff --git a/packages/frontend/src/pages/settings/mute-block.vue b/packages/frontend/src/pages/settings/mute-block.vue
index 4883ca0df4..83f7baf428 100644
--- a/packages/frontend/src/pages/settings/mute-block.vue
+++ b/packages/frontend/src/pages/settings/mute-block.vue
@@ -126,7 +126,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import XInstanceMute from './mute-block.instance-mute.vue';
 import XWordMute from './mute-block.word-mute.vue';
 import MkPagination from '@/components/MkPagination.vue';
@@ -154,9 +154,9 @@ const blockingPagination = {
 	limit: 10,
 };
 
-let expandedRenoteMuteItems = $ref([]);
-let expandedMuteItems = $ref([]);
-let expandedBlockItems = $ref([]);
+const expandedRenoteMuteItems = ref([]);
+const expandedMuteItems = ref([]);
+const expandedBlockItems = ref([]);
 
 async function unrenoteMute(user, ev) {
 	os.popupMenu([{
@@ -192,26 +192,26 @@ async function unblock(user, ev) {
 }
 
 async function toggleRenoteMuteItem(item) {
-	if (expandedRenoteMuteItems.includes(item.id)) {
-		expandedRenoteMuteItems = expandedRenoteMuteItems.filter(x => x !== item.id);
+	if (expandedRenoteMuteItems.value.includes(item.id)) {
+		expandedRenoteMuteItems.value = expandedRenoteMuteItems.value.filter(x => x !== item.id);
 	} else {
-		expandedRenoteMuteItems.push(item.id);
+		expandedRenoteMuteItems.value.push(item.id);
 	}
 }
 
 async function toggleMuteItem(item) {
-	if (expandedMuteItems.includes(item.id)) {
-		expandedMuteItems = expandedMuteItems.filter(x => x !== item.id);
+	if (expandedMuteItems.value.includes(item.id)) {
+		expandedMuteItems.value = expandedMuteItems.value.filter(x => x !== item.id);
 	} else {
-		expandedMuteItems.push(item.id);
+		expandedMuteItems.value.push(item.id);
 	}
 }
 
 async function toggleBlockItem(item) {
-	if (expandedBlockItems.includes(item.id)) {
-		expandedBlockItems = expandedBlockItems.filter(x => x !== item.id);
+	if (expandedBlockItems.value.includes(item.id)) {
+		expandedBlockItems.value = expandedBlockItems.value.filter(x => x !== item.id);
 	} else {
-		expandedBlockItems.push(item.id);
+		expandedBlockItems.value.push(item.id);
 	}
 }
 
@@ -223,9 +223,9 @@ async function saveHardMutedWords(hardMutedWords: (string | string[])[]) {
 	await os.api('i/update', { hardMutedWords });
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.muteAndBlock,
diff --git a/packages/frontend/src/pages/settings/navbar.vue b/packages/frontend/src/pages/settings/navbar.vue
index c9cccd7dcb..66477a86ca 100644
--- a/packages/frontend/src/pages/settings/navbar.vue
+++ b/packages/frontend/src/pages/settings/navbar.vue
@@ -115,9 +115,9 @@ watch(menuDisplay, async () => {
 	await reloadAsk();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.navbar,
diff --git a/packages/frontend/src/pages/settings/notifications.notification-config.vue b/packages/frontend/src/pages/settings/notifications.notification-config.vue
index c1f107c2b8..5c8378e1dc 100644
--- a/packages/frontend/src/pages/settings/notifications.notification-config.vue
+++ b/packages/frontend/src/pages/settings/notifications.notification-config.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkSelect from '@/components/MkSelect.vue';
 import MkButton from '@/components/MkButton.vue';
@@ -41,10 +41,10 @@ const emit = defineEmits<{
 	(ev: 'update', result: any): void;
 }>();
 
-let type = $ref(props.value.type);
-let userListId = $ref(props.value.userListId);
+const type = ref(props.value.type);
+const userListId = ref(props.value.userListId);
 
 function save() {
-	emit('update', { type, userListId });
+	emit('update', { type: type.value, userListId: userListId.value });
 }
 </script>
diff --git a/packages/frontend/src/pages/settings/notifications.vue b/packages/frontend/src/pages/settings/notifications.vue
index 7b09c6c900..394e428eda 100644
--- a/packages/frontend/src/pages/settings/notifications.vue
+++ b/packages/frontend/src/pages/settings/notifications.vue
@@ -55,7 +55,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent } from 'vue';
+import { defineAsyncComponent, shallowRef, computed } from 'vue';
 import XNotificationConfig from './notifications.notification-config.vue';
 import FormLink from '@/components/form/link.vue';
 import FormSection from '@/components/form/section.vue';
@@ -70,9 +70,9 @@ import { notificationTypes } from '@/const.js';
 
 const nonConfigurableNotificationTypes = ['note'];
 
-let allowButton = $shallowRef<InstanceType<typeof MkPushNotificationAllowButton>>();
-let pushRegistrationInServer = $computed(() => allowButton?.pushRegistrationInServer);
-let sendReadMessage = $computed(() => pushRegistrationInServer?.sendReadMessage || false);
+const allowButton = shallowRef<InstanceType<typeof MkPushNotificationAllowButton>>();
+const pushRegistrationInServer = computed(() => allowButton.value?.pushRegistrationInServer);
+const sendReadMessage = computed(() => pushRegistrationInServer.value?.sendReadMessage || false);
 const userLists = await os.api('users/lists/list');
 
 async function readAllUnreadNotes() {
@@ -95,14 +95,14 @@ async function updateReceiveConfig(type, value) {
 }
 
 function onChangeSendReadMessage(v: boolean) {
-	if (!pushRegistrationInServer) return;
+	if (!pushRegistrationInServer.value) return;
 
 	os.apiWithDialog('sw/update-registration', {
-		endpoint: pushRegistrationInServer.endpoint,
+		endpoint: pushRegistrationInServer.value.endpoint,
 		sendReadMessage: v,
 	}).then(res => {
-		if (!allowButton)	return;
-		allowButton.pushRegistrationInServer = res;
+		if (!allowButton.value)	return;
+		allowButton.value.pushRegistrationInServer = res;
 	});
 }
 
@@ -110,9 +110,9 @@ function testNotification(): void {
 	os.api('notifications/test-notification');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.notifications,
diff --git a/packages/frontend/src/pages/settings/other.vue b/packages/frontend/src/pages/settings/other.vue
index a921e0cea9..340a9550b4 100644
--- a/packages/frontend/src/pages/settings/other.vue
+++ b/packages/frontend/src/pages/settings/other.vue
@@ -163,9 +163,9 @@ watch([
 	await reloadAsk();
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.other,
diff --git a/packages/frontend/src/pages/settings/plugin.install.vue b/packages/frontend/src/pages/settings/plugin.install.vue
index 693e02d0ed..f304d777a5 100644
--- a/packages/frontend/src/pages/settings/plugin.install.vue
+++ b/packages/frontend/src/pages/settings/plugin.install.vue
@@ -18,7 +18,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { nextTick, ref } from 'vue';
+import { nextTick, ref, computed } from 'vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import MkButton from '@/components/MkButton.vue';
 import FormInfo from '@/components/MkInfo.vue';
@@ -49,9 +49,9 @@ async function install() {
 	}
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts._plugin.install,
diff --git a/packages/frontend/src/pages/settings/plugin.vue b/packages/frontend/src/pages/settings/plugin.vue
index 5ebd74ef7a..bf760e623f 100644
--- a/packages/frontend/src/pages/settings/plugin.vue
+++ b/packages/frontend/src/pages/settings/plugin.vue
@@ -60,7 +60,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { nextTick, ref } from 'vue';
+import { nextTick, ref, computed } from 'vue';
 import FormLink from '@/components/form/link.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import FormSection from '@/components/form/section.vue';
@@ -121,9 +121,9 @@ function changeActive(plugin, active) {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.plugins,
diff --git a/packages/frontend/src/pages/settings/privacy.vue b/packages/frontend/src/pages/settings/privacy.vue
index d195b4142c..971881ea24 100644
--- a/packages/frontend/src/pages/settings/privacy.vue
+++ b/packages/frontend/src/pages/settings/privacy.vue
@@ -66,7 +66,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkSwitch from '@/components/MkSwitch.vue';
 import MkSelect from '@/components/MkSelect.vue';
 import FormSection from '@/components/form/section.vue';
@@ -77,36 +77,36 @@ import { i18n } from '@/i18n.js';
 import { $i } from '@/account.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let isLocked = $ref($i.isLocked);
-let autoAcceptFollowed = $ref($i.autoAcceptFollowed);
-let noCrawle = $ref($i.noCrawle);
-let preventAiLearning = $ref($i.preventAiLearning);
-let isExplorable = $ref($i.isExplorable);
-let hideOnlineStatus = $ref($i.hideOnlineStatus);
-let publicReactions = $ref($i.publicReactions);
-let ffVisibility = $ref($i.ffVisibility);
+const isLocked = ref($i.isLocked);
+const autoAcceptFollowed = ref($i.autoAcceptFollowed);
+const noCrawle = ref($i.noCrawle);
+const preventAiLearning = ref($i.preventAiLearning);
+const isExplorable = ref($i.isExplorable);
+const hideOnlineStatus = ref($i.hideOnlineStatus);
+const publicReactions = ref($i.publicReactions);
+const ffVisibility = ref($i.ffVisibility);
 
-let defaultNoteVisibility = $computed(defaultStore.makeGetterSetter('defaultNoteVisibility'));
-let defaultNoteLocalOnly = $computed(defaultStore.makeGetterSetter('defaultNoteLocalOnly'));
-let rememberNoteVisibility = $computed(defaultStore.makeGetterSetter('rememberNoteVisibility'));
-let keepCw = $computed(defaultStore.makeGetterSetter('keepCw'));
+const defaultNoteVisibility = computed(defaultStore.makeGetterSetter('defaultNoteVisibility'));
+const defaultNoteLocalOnly = computed(defaultStore.makeGetterSetter('defaultNoteLocalOnly'));
+const rememberNoteVisibility = computed(defaultStore.makeGetterSetter('rememberNoteVisibility'));
+const keepCw = computed(defaultStore.makeGetterSetter('keepCw'));
 
 function save() {
 	os.api('i/update', {
-		isLocked: !!isLocked,
-		autoAcceptFollowed: !!autoAcceptFollowed,
-		noCrawle: !!noCrawle,
-		preventAiLearning: !!preventAiLearning,
-		isExplorable: !!isExplorable,
-		hideOnlineStatus: !!hideOnlineStatus,
-		publicReactions: !!publicReactions,
-		ffVisibility: ffVisibility,
+		isLocked: !!isLocked.value,
+		autoAcceptFollowed: !!autoAcceptFollowed.value,
+		noCrawle: !!noCrawle.value,
+		preventAiLearning: !!preventAiLearning.value,
+		isExplorable: !!isExplorable.value,
+		hideOnlineStatus: !!hideOnlineStatus.value,
+		publicReactions: !!publicReactions.value,
+		ffVisibility: ffVisibility.value,
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.privacy,
diff --git a/packages/frontend/src/pages/settings/profile.vue b/packages/frontend/src/pages/settings/profile.vue
index f6e387da52..ba75b539e1 100644
--- a/packages/frontend/src/pages/settings/profile.vue
+++ b/packages/frontend/src/pages/settings/profile.vue
@@ -144,7 +144,7 @@ import MkInfo from '@/components/MkInfo.vue';
 const Sortable = defineAsyncComponent(() => import('vuedraggable').then(x => x.default));
 
 const reactionAcceptance = computed(defaultStore.makeGetterSetter('reactionAcceptance'));
-let avatarDecorations: any[] = $ref([]);
+const avatarDecorations = ref<any[]>([]);
 
 const profile = reactive({
 	name: $i.name,
@@ -166,7 +166,7 @@ const fields = ref($i?.fields.map(field => ({ id: Math.random().toString(), name
 const fieldEditMode = ref(false);
 
 os.api('get-avatar-decorations').then(_avatarDecorations => {
-	avatarDecorations = _avatarDecorations;
+	avatarDecorations.value = _avatarDecorations;
 });
 
 function addField() {
@@ -273,9 +273,9 @@ function openDecoration(avatarDecoration) {
 	}, {}, 'closed');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.profile,
diff --git a/packages/frontend/src/pages/settings/reaction.vue b/packages/frontend/src/pages/settings/reaction.vue
index fb0f975212..fe5d9fc443 100644
--- a/packages/frontend/src/pages/settings/reaction.vue
+++ b/packages/frontend/src/pages/settings/reaction.vue
@@ -60,7 +60,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, watch } from 'vue';
+import { defineAsyncComponent, watch, ref, computed } from 'vue';
 import Sortable from 'vuedraggable';
 import MkRadios from '@/components/MkRadios.vue';
 import FromSlot from '@/components/form/slot.vue';
@@ -73,22 +73,22 @@ import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import { deepClone } from '@/scripts/clone.js';
 
-let reactions = $ref(deepClone(defaultStore.state.reactions));
+const reactions = ref(deepClone(defaultStore.state.reactions));
 
-const reactionPickerSize = $computed(defaultStore.makeGetterSetter('reactionPickerSize'));
-const reactionPickerWidth = $computed(defaultStore.makeGetterSetter('reactionPickerWidth'));
-const reactionPickerHeight = $computed(defaultStore.makeGetterSetter('reactionPickerHeight'));
-const reactionPickerUseDrawerForMobile = $computed(defaultStore.makeGetterSetter('reactionPickerUseDrawerForMobile'));
+const reactionPickerSize = computed(defaultStore.makeGetterSetter('reactionPickerSize'));
+const reactionPickerWidth = computed(defaultStore.makeGetterSetter('reactionPickerWidth'));
+const reactionPickerHeight = computed(defaultStore.makeGetterSetter('reactionPickerHeight'));
+const reactionPickerUseDrawerForMobile = computed(defaultStore.makeGetterSetter('reactionPickerUseDrawerForMobile'));
 
 function save() {
-	defaultStore.set('reactions', reactions);
+	defaultStore.set('reactions', reactions.value);
 }
 
 function remove(reaction, ev: MouseEvent) {
 	os.popupMenu([{
 		text: i18n.ts.remove,
 		action: () => {
-			reactions = reactions.filter(x => x !== reaction);
+			reactions.value = reactions.value.filter(x => x !== reaction);
 		},
 	}], ev.currentTarget ?? ev.target);
 }
@@ -107,28 +107,28 @@ async function setDefault() {
 	});
 	if (canceled) return;
 
-	reactions = deepClone(defaultStore.def.reactions.default);
+	reactions.value = deepClone(defaultStore.def.reactions.default);
 }
 
 function chooseEmoji(ev: MouseEvent) {
 	os.pickEmoji(ev.currentTarget ?? ev.target, {
 		showPinned: false,
 	}).then(emoji => {
-		if (!reactions.includes(emoji)) {
-			reactions.push(emoji);
+		if (!reactions.value.includes(emoji)) {
+			reactions.value.push(emoji);
 		}
 	});
 }
 
-watch($$(reactions), () => {
+watch(reactions, () => {
 	save();
 }, {
 	deep: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.reaction,
diff --git a/packages/frontend/src/pages/settings/roles.vue b/packages/frontend/src/pages/settings/roles.vue
index 71238af72e..0f6c30dae9 100644
--- a/packages/frontend/src/pages/settings/roles.vue
+++ b/packages/frontend/src/pages/settings/roles.vue
@@ -46,9 +46,9 @@ function save() {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.roles,
diff --git a/packages/frontend/src/pages/settings/security.vue b/packages/frontend/src/pages/settings/security.vue
index eacd34778d..3f85f27e47 100644
--- a/packages/frontend/src/pages/settings/security.vue
+++ b/packages/frontend/src/pages/settings/security.vue
@@ -40,6 +40,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
+import { computed } from 'vue';
 import X2fa from './2fa.vue';
 import FormSection from '@/components/form/section.vue';
 import FormSlot from '@/components/form/slot.vue';
@@ -97,9 +98,9 @@ async function regenerateToken() {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.security,
diff --git a/packages/frontend/src/pages/settings/sounds.vue b/packages/frontend/src/pages/settings/sounds.vue
index e549901f05..9fbcce2286 100644
--- a/packages/frontend/src/pages/settings/sounds.vue
+++ b/packages/frontend/src/pages/settings/sounds.vue
@@ -90,9 +90,9 @@ function reset() {
 	}
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.sounds,
diff --git a/packages/frontend/src/pages/settings/statusbar.vue b/packages/frontend/src/pages/settings/statusbar.vue
index 7103c2582a..b341e8488e 100644
--- a/packages/frontend/src/pages/settings/statusbar.vue
+++ b/packages/frontend/src/pages/settings/statusbar.vue
@@ -15,7 +15,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref, computed } from 'vue';
 import { v4 as uuid } from 'uuid';
 import XStatusbar from './statusbar.statusbar.vue';
 import MkFolder from '@/components/MkFolder.vue';
@@ -27,11 +27,11 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 
 const statusbars = defaultStore.reactiveState.statusbars;
 
-let userLists = $ref();
+const userLists = ref();
 
 onMounted(() => {
 	os.api('users/lists/list').then(res => {
-		userLists = res;
+		userLists.value = res;
 	});
 });
 
@@ -45,9 +45,9 @@ async function add() {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.statusbar,
diff --git a/packages/frontend/src/pages/settings/theme.install.vue b/packages/frontend/src/pages/settings/theme.install.vue
index 7fa7b23e44..c2ca53c743 100644
--- a/packages/frontend/src/pages/settings/theme.install.vue
+++ b/packages/frontend/src/pages/settings/theme.install.vue
@@ -17,7 +17,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import MkButton from '@/components/MkButton.vue';
 import { parseThemeCode, previewTheme, installTheme } from '@/scripts/install-theme.js';
@@ -25,7 +25,7 @@ import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let installThemeCode = $ref(null);
+const installThemeCode = ref(null);
 
 async function install(code: string): Promise<void> {
 	try {
@@ -55,9 +55,9 @@ async function install(code: string): Promise<void> {
 	}
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts._theme.install,
diff --git a/packages/frontend/src/pages/settings/theme.manage.vue b/packages/frontend/src/pages/settings/theme.manage.vue
index 8c90c175f0..2a2dd5e764 100644
--- a/packages/frontend/src/pages/settings/theme.manage.vue
+++ b/packages/frontend/src/pages/settings/theme.manage.vue
@@ -72,9 +72,9 @@ function uninstall() {
 	os.success();
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts._theme.manage,
diff --git a/packages/frontend/src/pages/settings/theme.vue b/packages/frontend/src/pages/settings/theme.vue
index 9e55a8fd8d..ad2fc6efe9 100644
--- a/packages/frontend/src/pages/settings/theme.vue
+++ b/packages/frontend/src/pages/settings/theme.vue
@@ -160,9 +160,9 @@ function setWallpaper(event) {
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.theme,
diff --git a/packages/frontend/src/pages/settings/webhook.edit.vue b/packages/frontend/src/pages/settings/webhook.edit.vue
index 3301732c88..c1695dc6a5 100644
--- a/packages/frontend/src/pages/settings/webhook.edit.vue
+++ b/packages/frontend/src/pages/settings/webhook.edit.vue
@@ -42,7 +42,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkInput from '@/components/MkInput.vue';
 import FormSection from '@/components/form/section.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
@@ -62,36 +62,36 @@ const webhook = await os.api('i/webhooks/show', {
 	webhookId: props.webhookId,
 });
 
-let name = $ref(webhook.name);
-let url = $ref(webhook.url);
-let secret = $ref(webhook.secret);
-let active = $ref(webhook.active);
+const name = ref(webhook.name);
+const url = ref(webhook.url);
+const secret = ref(webhook.secret);
+const active = ref(webhook.active);
 
-let event_follow = $ref(webhook.on.includes('follow'));
-let event_followed = $ref(webhook.on.includes('followed'));
-let event_note = $ref(webhook.on.includes('note'));
-let event_reply = $ref(webhook.on.includes('reply'));
-let event_renote = $ref(webhook.on.includes('renote'));
-let event_reaction = $ref(webhook.on.includes('reaction'));
-let event_mention = $ref(webhook.on.includes('mention'));
+const event_follow = ref(webhook.on.includes('follow'));
+const event_followed = ref(webhook.on.includes('followed'));
+const event_note = ref(webhook.on.includes('note'));
+const event_reply = ref(webhook.on.includes('reply'));
+const event_renote = ref(webhook.on.includes('renote'));
+const event_reaction = ref(webhook.on.includes('reaction'));
+const event_mention = ref(webhook.on.includes('mention'));
 
 async function save(): Promise<void> {
 	const events = [];
-	if (event_follow) events.push('follow');
-	if (event_followed) events.push('followed');
-	if (event_note) events.push('note');
-	if (event_reply) events.push('reply');
-	if (event_renote) events.push('renote');
-	if (event_reaction) events.push('reaction');
-	if (event_mention) events.push('mention');
+	if (event_follow.value) events.push('follow');
+	if (event_followed.value) events.push('followed');
+	if (event_note.value) events.push('note');
+	if (event_reply.value) events.push('reply');
+	if (event_renote.value) events.push('renote');
+	if (event_reaction.value) events.push('reaction');
+	if (event_mention.value) events.push('mention');
 
 	os.apiWithDialog('i/webhooks/update', {
-		name,
-		url,
-		secret,
+		name: name.value,
+		url: url.value,
+		secret: secret.value,
 		webhookId: props.webhookId,
 		on: events,
-		active,
+		active: active.value,
 	});
 }
 
@@ -109,9 +109,9 @@ async function del(): Promise<void> {
 	router.push('/settings/webhook');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'Edit webhook',
diff --git a/packages/frontend/src/pages/settings/webhook.new.vue b/packages/frontend/src/pages/settings/webhook.new.vue
index ed56126548..8a4f03431c 100644
--- a/packages/frontend/src/pages/settings/webhook.new.vue
+++ b/packages/frontend/src/pages/settings/webhook.new.vue
@@ -39,7 +39,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref, computed } from 'vue';
 import MkInput from '@/components/MkInput.vue';
 import FormSection from '@/components/form/section.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
@@ -48,39 +48,39 @@ import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let name = $ref('');
-let url = $ref('');
-let secret = $ref('');
+const name = ref('');
+const url = ref('');
+const secret = ref('');
 
-let event_follow = $ref(true);
-let event_followed = $ref(true);
-let event_note = $ref(true);
-let event_reply = $ref(true);
-let event_renote = $ref(true);
-let event_reaction = $ref(true);
-let event_mention = $ref(true);
+const event_follow = ref(true);
+const event_followed = ref(true);
+const event_note = ref(true);
+const event_reply = ref(true);
+const event_renote = ref(true);
+const event_reaction = ref(true);
+const event_mention = ref(true);
 
 async function create(): Promise<void> {
 	const events = [];
-	if (event_follow) events.push('follow');
-	if (event_followed) events.push('followed');
-	if (event_note) events.push('note');
-	if (event_reply) events.push('reply');
-	if (event_renote) events.push('renote');
-	if (event_reaction) events.push('reaction');
-	if (event_mention) events.push('mention');
+	if (event_follow.value) events.push('follow');
+	if (event_followed.value) events.push('followed');
+	if (event_note.value) events.push('note');
+	if (event_reply.value) events.push('reply');
+	if (event_renote.value) events.push('renote');
+	if (event_reaction.value) events.push('reaction');
+	if (event_mention.value) events.push('mention');
 
 	os.apiWithDialog('i/webhooks/create', {
-		name,
-		url,
-		secret,
+		name: name.value,
+		url: url.value,
+		secret: secret.value,
 		on: events,
 	});
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'Create new webhook',
diff --git a/packages/frontend/src/pages/settings/webhook.vue b/packages/frontend/src/pages/settings/webhook.vue
index 33841d7f8d..334e5e841b 100644
--- a/packages/frontend/src/pages/settings/webhook.vue
+++ b/packages/frontend/src/pages/settings/webhook.vue
@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { computed } from 'vue';
 import MkPagination from '@/components/MkPagination.vue';
 import FormSection from '@/components/form/section.vue';
 import FormLink from '@/components/form/link.vue';
@@ -46,9 +46,9 @@ const pagination = {
 	noPaging: true,
 };
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: 'Webhook',
diff --git a/packages/frontend/src/pages/share.vue b/packages/frontend/src/pages/share.vue
index 1d77e5931d..3e9cac9858 100644
--- a/packages/frontend/src/pages/share.vue
+++ b/packages/frontend/src/pages/share.vue
@@ -32,7 +32,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script lang="ts" setup>
 // SPECIFICATION: https://misskey-hub.net/docs/features/share-form.html
 
-import { ref } from 'vue';
+import { ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkButton from '@/components/MkButton.vue';
 import MkPostForm from '@/components/MkPostForm.vue';
@@ -46,27 +46,27 @@ const localOnlyQuery = urlParams.get('localOnly');
 const visibilityQuery = urlParams.get('visibility') as typeof Misskey.noteVisibilities[number];
 
 const state = ref<'fetching' | 'writing' | 'posted'>('fetching');
-let title = $ref(urlParams.get('title'));
+const title = ref(urlParams.get('title'));
 const text = urlParams.get('text');
 const url = urlParams.get('url');
-let initialText = $ref<string | undefined>();
-let reply = $ref<Misskey.entities.Note | undefined>();
-let renote = $ref<Misskey.entities.Note | undefined>();
-let visibility = $ref(Misskey.noteVisibilities.includes(visibilityQuery) ? visibilityQuery : undefined);
-let localOnly = $ref(localOnlyQuery === '0' ? false : localOnlyQuery === '1' ? true : undefined);
-let files = $ref([] as Misskey.entities.DriveFile[]);
-let visibleUsers = $ref([] as Misskey.entities.User[]);
+const initialText = ref<string | undefined>();
+const reply = ref<Misskey.entities.Note | undefined>();
+const renote = ref<Misskey.entities.Note | undefined>();
+const visibility = ref(Misskey.noteVisibilities.includes(visibilityQuery) ? visibilityQuery : undefined);
+const localOnly = ref(localOnlyQuery === '0' ? false : localOnlyQuery === '1' ? true : undefined);
+const files = ref([] as Misskey.entities.DriveFile[]);
+const visibleUsers = ref([] as Misskey.entities.User[]);
 
 async function init() {
 	let noteText = '';
-	if (title) noteText += `[ ${title} ]\n`;
+	if (title.value) noteText += `[ ${title.value} ]\n`;
 	// Googleニュース対策
-	if (text?.startsWith(`${title}.\n`)) noteText += text.replace(`${title}.\n`, '');
-	else if (text && title !== text) noteText += `${text}\n`;
+	if (text?.startsWith(`${title.value}.\n`)) noteText += text.replace(`${title.value}.\n`, '');
+	else if (text && title.value !== text) noteText += `${text}\n`;
 	if (url) noteText += `${url}`;
-	initialText = noteText.trim();
+	initialText.value = noteText.trim();
 
-	if (visibility === 'specified') {
+	if (visibility.value === 'specified') {
 		const visibleUserIds = urlParams.get('visibleUserIds');
 		const visibleAccts = urlParams.get('visibleAccts');
 		await Promise.all(
@@ -78,7 +78,7 @@ async function init() {
 				.map(q => 'username' in q ? { username: q.username, host: q.host === null ? undefined : q.host } : q)
 				.map(q => os.api('users/show', q)
 					.then(user => {
-						visibleUsers.push(user);
+						visibleUsers.value.push(user);
 					}, () => {
 						console.error(`Invalid user query: ${JSON.stringify(q)}`);
 					}),
@@ -91,7 +91,7 @@ async function init() {
 		const replyId = urlParams.get('replyId');
 		const replyUri = urlParams.get('replyUri');
 		if (replyId) {
-			reply = await os.api('notes/show', {
+			reply.value = await os.api('notes/show', {
 				noteId: replyId,
 			});
 		} else if (replyUri) {
@@ -99,7 +99,7 @@ async function init() {
 				uri: replyUri,
 			});
 			if (obj.type === 'Note') {
-				reply = obj.object;
+				reply.value = obj.object;
 			}
 		}
 		//#endregion
@@ -108,7 +108,7 @@ async function init() {
 		const renoteId = urlParams.get('renoteId');
 		const renoteUri = urlParams.get('renoteUri');
 		if (renoteId) {
-			renote = await os.api('notes/show', {
+			renote.value = await os.api('notes/show', {
 				noteId: renoteId,
 			});
 		} else if (renoteUri) {
@@ -116,7 +116,7 @@ async function init() {
 				uri: renoteUri,
 			});
 			if (obj.type === 'Note') {
-				renote = obj.object;
+				renote.value = obj.object;
 			}
 		}
 		//#endregion
@@ -128,7 +128,7 @@ async function init() {
 				fileIds.split(',')
 					.map(fileId => os.api('drive/files/show', { fileId })
 						.then(file => {
-							files.push(file);
+							files.value.push(file);
 						}, () => {
 							console.error(`Failed to fetch a file ${fileId}`);
 						}),
@@ -167,9 +167,9 @@ function onPosted(): void {
 	postMessageToParentWindow('misskey:shareForm:shareCompleted');
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.share,
diff --git a/packages/frontend/src/pages/signup-complete.vue b/packages/frontend/src/pages/signup-complete.vue
index d9a730851d..638c7e8773 100644
--- a/packages/frontend/src/pages/signup-complete.vue
+++ b/packages/frontend/src/pages/signup-complete.vue
@@ -25,29 +25,29 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkAnimBg from '@/components/MkAnimBg.vue';
 import { login } from '@/account.js';
 import { i18n } from '@/i18n.js';
 import * as os from '@/os.js';
 
-let submitting = $ref(false);
+const submitting = ref(false);
 
 const props = defineProps<{
 	code: string;
 }>();
 
 function submit() {
-	if (submitting) return;
-	submitting = true;
+	if (submitting.value) return;
+	submitting.value = true;
 
 	os.api('signup-pending', {
 		code: props.code,
 	}).then(res => {
 		return login(res.i, '/');
 	}).catch(() => {
-		submitting = false;
+		submitting.value = false;
 
 		os.alert({
 			type: 'error',
diff --git a/packages/frontend/src/pages/tag.vue b/packages/frontend/src/pages/tag.vue
index 85c571ecd6..797ab796d2 100644
--- a/packages/frontend/src/pages/tag.vue
+++ b/packages/frontend/src/pages/tag.vue
@@ -51,9 +51,9 @@ async function post() {
 	notes.value?.pagingComponent?.reload();
 }
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: props.tag,
diff --git a/packages/frontend/src/pages/theme-editor.vue b/packages/frontend/src/pages/theme-editor.vue
index 740fd5c4eb..0d137137fc 100644
--- a/packages/frontend/src/pages/theme-editor.vue
+++ b/packages/frontend/src/pages/theme-editor.vue
@@ -73,7 +73,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { watch } from 'vue';
+import { watch, ref, computed } from 'vue';
 import { toUnicode } from 'punycode/';
 import tinycolor from 'tinycolor2';
 import { v4 as uuid } from 'uuid';
@@ -124,57 +124,57 @@ const fgColors = [
 	{ color: 'pink', forLight: '#84667d', forDark: '#e4d1e0', forPreview: '#b12390' },
 ];
 
-let theme = $ref<Partial<Theme>>({
+const theme = ref<Partial<Theme>>({
 	base: 'light',
 	props: lightTheme.props,
 });
-let description = $ref<string | null>(null);
-let themeCode = $ref<string | null>(null);
-let changed = $ref(false);
+const description = ref<string | null>(null);
+const themeCode = ref<string | null>(null);
+const changed = ref(false);
 
-useLeaveGuard($$(changed));
+useLeaveGuard(changed);
 
 function showPreview() {
 	os.pageWindow('/preview');
 }
 
 function setBgColor(color: typeof bgColors[number]) {
-	if (theme.base !== color.kind) {
+	if (theme.value.base !== color.kind) {
 		const base = color.kind === 'dark' ? darkTheme : lightTheme;
 		for (const prop of Object.keys(base.props)) {
 			if (prop === 'accent') continue;
 			if (prop === 'fg') continue;
-			theme.props[prop] = base.props[prop];
+			theme.value.props[prop] = base.props[prop];
 		}
 	}
-	theme.base = color.kind;
-	theme.props.bg = color.color;
+	theme.value.base = color.kind;
+	theme.value.props.bg = color.color;
 
-	if (theme.props.fg) {
-		const matchedFgColor = fgColors.find(x => [tinycolor(x.forLight).toRgbString(), tinycolor(x.forDark).toRgbString()].includes(tinycolor(theme.props.fg).toRgbString()));
+	if (theme.value.props.fg) {
+		const matchedFgColor = fgColors.find(x => [tinycolor(x.forLight).toRgbString(), tinycolor(x.forDark).toRgbString()].includes(tinycolor(theme.value.props.fg).toRgbString()));
 		if (matchedFgColor) setFgColor(matchedFgColor);
 	}
 }
 
 function setAccentColor(color) {
-	theme.props.accent = color;
+	theme.value.props.accent = color;
 }
 
 function setFgColor(color) {
-	theme.props.fg = theme.base === 'light' ? color.forLight : color.forDark;
+	theme.value.props.fg = theme.value.base === 'light' ? color.forLight : color.forDark;
 }
 
 function apply() {
-	themeCode = JSON5.stringify(theme, null, '\t');
-	applyTheme(theme, false);
-	changed = true;
+	themeCode.value = JSON5.stringify(theme.value, null, '\t');
+	applyTheme(theme.value, false);
+	changed.value = true;
 }
 
 function applyThemeCode() {
 	let parsed;
 
 	try {
-		parsed = JSON5.parse(themeCode);
+		parsed = JSON5.parse(themeCode.value);
 	} catch (err) {
 		os.alert({
 			type: 'error',
@@ -183,7 +183,7 @@ function applyThemeCode() {
 		return;
 	}
 
-	theme = parsed;
+	theme.value = parsed;
 }
 
 async function saveAs() {
@@ -193,27 +193,27 @@ async function saveAs() {
 	});
 	if (canceled) return;
 
-	theme.id = uuid();
-	theme.name = name;
-	theme.author = `@${$i.username}@${toUnicode(host)}`;
-	if (description) theme.desc = description;
-	await addTheme(theme);
-	applyTheme(theme);
+	theme.value.id = uuid();
+	theme.value.name = name;
+	theme.value.author = `@${$i.username}@${toUnicode(host)}`;
+	if (description.value) theme.value.desc = description.value;
+	await addTheme(theme.value);
+	applyTheme(theme.value);
 	if (defaultStore.state.darkMode) {
-		ColdDeviceStorage.set('darkTheme', theme);
+		ColdDeviceStorage.set('darkTheme', theme.value);
 	} else {
-		ColdDeviceStorage.set('lightTheme', theme);
+		ColdDeviceStorage.set('lightTheme', theme.value);
 	}
-	changed = false;
+	changed.value = false;
 	os.alert({
 		type: 'success',
-		text: i18n.t('_theme.installed', { name: theme.name }),
+		text: i18n.t('_theme.installed', { name: theme.value.name }),
 	});
 }
 
-watch($$(theme), apply, { deep: true });
+watch(theme, apply, { deep: true });
 
-const headerActions = $computed(() => [{
+const headerActions = computed(() => [{
 	asFullButton: true,
 	icon: 'ti ti-eye',
 	text: i18n.ts.preview,
@@ -225,7 +225,7 @@ const headerActions = $computed(() => [{
 	handler: saveAs,
 }]);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata({
 	title: i18n.ts.themeEditor,
diff --git a/packages/frontend/src/pages/timeline.vue b/packages/frontend/src/pages/timeline.vue
index b390d1931d..942061efe3 100644
--- a/packages/frontend/src/pages/timeline.vue
+++ b/packages/frontend/src/pages/timeline.vue
@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch, provide } from 'vue';
+import { computed, watch, provide, shallowRef, ref } from 'vue';
 import type { Tab } from '@/components/global/MkPageHeader.tabs.vue';
 import MkTimeline from '@/components/MkTimeline.vue';
 import MkInfo from '@/components/MkInfo.vue';
@@ -57,28 +57,28 @@ const keymap = {
 	't': focus,
 };
 
-const tlComponent = $shallowRef<InstanceType<typeof MkTimeline>>();
-const rootEl = $shallowRef<HTMLElement>();
+const tlComponent = shallowRef<InstanceType<typeof MkTimeline>>();
+const rootEl = shallowRef<HTMLElement>();
 
-let queue = $ref(0);
-let srcWhenNotSignin = $ref(isLocalTimelineAvailable ? 'local' : 'global');
-const src = $computed({ get: () => ($i ? defaultStore.reactiveState.tl.value.src : srcWhenNotSignin), set: (x) => saveSrc(x) });
-const withRenotes = $ref(true);
-const withReplies = $ref($i ? defaultStore.state.tlWithReplies : false);
-const onlyFiles = $ref(false);
+const queue = ref(0);
+const srcWhenNotSignin = ref(isLocalTimelineAvailable ? 'local' : 'global');
+const src = computed({ get: () => ($i ? defaultStore.reactiveState.tl.value.src : srcWhenNotSignin.value), set: (x) => saveSrc(x) });
+const withRenotes = ref(true);
+const withReplies = ref($i ? defaultStore.state.tlWithReplies : false);
+const onlyFiles = ref(false);
 
-watch($$(src), () => queue = 0);
+watch(src, () => queue.value = 0);
 
-watch($$(withReplies), (x) => {
+watch(withReplies, (x) => {
 	if ($i) defaultStore.set('tlWithReplies', x);
 });
 
 function queueUpdated(q: number): void {
-	queue = q;
+	queue.value = q;
 }
 
 function top(): void {
-	if (rootEl) scroll(rootEl, { top: 0 });
+	if (rootEl.value) scroll(rootEl.value, { top: 0 });
 }
 
 async function chooseList(ev: MouseEvent): Promise<void> {
@@ -125,7 +125,7 @@ function saveSrc(newSrc: 'home' | 'local' | 'social' | 'global' | `list:${string
 		src: newSrc,
 		userList,
 	});
-	srcWhenNotSignin = newSrc;
+	srcWhenNotSignin.value = newSrc;
 }
 
 async function timetravel(): Promise<void> {
@@ -134,21 +134,21 @@ async function timetravel(): Promise<void> {
 	});
 	if (canceled) return;
 
-	tlComponent.timetravel(date);
+	tlComponent.value.timetravel(date);
 }
 
 function focus(): void {
-	tlComponent.focus();
+	tlComponent.value.focus();
 }
 
 function closeTutorial(): void {
-	if (!['home', 'local', 'social', 'global'].includes(src)) return;
+	if (!['home', 'local', 'social', 'global'].includes(src.value)) return;
 	const before = defaultStore.state.timelineTutorials;
-	before[src] = true;
+	before[src.value] = true;
 	defaultStore.set('timelineTutorials', before);
 }
 
-const headerActions = $computed(() => {
+const headerActions = computed(() => {
 	const tmp = [
 		{
 			icon: 'ti ti-dots',
@@ -157,17 +157,17 @@ const headerActions = $computed(() => {
 				os.popupMenu([{
 					type: 'switch',
 					text: i18n.ts.showRenotes,
-					ref: $$(withRenotes),
-				}, src === 'local' || src === 'social' ? {
+					ref: withRenotes,
+				}, src.value === 'local' || src.value === 'social' ? {
 					type: 'switch',
 					text: i18n.ts.showRepliesToOthersInTimeline,
-					ref: $$(withReplies),
-					disabled: $$(onlyFiles),
+					ref: withReplies,
+					disabled: onlyFiles,
 				} : undefined, {
 					type: 'switch',
 					text: i18n.ts.fileAttachedOnly,
-					ref: $$(onlyFiles),
-					disabled: src === 'local' || src === 'social' ? $$(withReplies) : false,
+					ref: onlyFiles,
+					disabled: src.value === 'local' || src.value === 'social' ? withReplies : false,
 				}], ev.currentTarget ?? ev.target);
 			},
 		},
@@ -178,14 +178,14 @@ const headerActions = $computed(() => {
 			text: i18n.ts.reload,
 			handler: (ev: Event) => {
 				console.log('called');
-				tlComponent.reloadTimeline();
+				tlComponent.value.reloadTimeline();
 			},
 		});
 	}
 	return tmp;
 });
 
-const headerTabs = $computed(() => [...(defaultStore.reactiveState.pinnedUserLists.value.map(l => ({
+const headerTabs = computed(() => [...(defaultStore.reactiveState.pinnedUserLists.value.map(l => ({
 	key: 'list:' + l.id,
 	title: l.name,
 	icon: 'ti ti-star',
@@ -227,7 +227,7 @@ const headerTabs = $computed(() => [...(defaultStore.reactiveState.pinnedUserLis
 	onClick: chooseChannel,
 }] as Tab[]);
 
-const headerTabsWhenNotLogin = $computed(() => [
+const headerTabsWhenNotLogin = computed(() => [
 	...(isLocalTimelineAvailable ? [{
 		key: 'local',
 		title: i18n.ts._timelines.local,
@@ -244,7 +244,7 @@ const headerTabsWhenNotLogin = $computed(() => [
 
 definePageMetadata(computed(() => ({
 	title: i18n.ts.timeline,
-	icon: src === 'local' ? 'ti ti-planet' : src === 'social' ? 'ti ti-universe' : src === 'global' ? 'ti ti-whirl' : 'ti ti-home',
+	icon: src.value === 'local' ? 'ti ti-planet' : src.value === 'social' ? 'ti ti-universe' : src.value === 'global' ? 'ti ti-whirl' : 'ti ti-home',
 })));
 </script>
 
diff --git a/packages/frontend/src/pages/user-list-timeline.vue b/packages/frontend/src/pages/user-list-timeline.vue
index 0fc7b62d82..5804a7e7da 100644
--- a/packages/frontend/src/pages/user-list-timeline.vue
+++ b/packages/frontend/src/pages/user-list-timeline.vue
@@ -24,7 +24,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref, shallowRef } from 'vue';
 import MkTimeline from '@/components/MkTimeline.vue';
 import { scroll } from '@/scripts/scroll.js';
 import * as os from '@/os.js';
@@ -38,39 +38,39 @@ const props = defineProps<{
 	listId: string;
 }>();
 
-let list = $ref(null);
-let queue = $ref(0);
-let tlEl = $shallowRef<InstanceType<typeof MkTimeline>>();
-let rootEl = $shallowRef<HTMLElement>();
+const list = ref(null);
+const queue = ref(0);
+const tlEl = shallowRef<InstanceType<typeof MkTimeline>>();
+const rootEl = shallowRef<HTMLElement>();
 
 watch(() => props.listId, async () => {
-	list = await os.api('users/lists/show', {
+	list.value = await os.api('users/lists/show', {
 		listId: props.listId,
 	});
 }, { immediate: true });
 
 function queueUpdated(q) {
-	queue = q;
+	queue.value = q;
 }
 
 function top() {
-	scroll(rootEl, { top: 0 });
+	scroll(rootEl.value, { top: 0 });
 }
 
 function settings() {
 	router.push(`/my/lists/${props.listId}`);
 }
 
-const headerActions = $computed(() => list ? [{
+const headerActions = computed(() => list.value ? [{
 	icon: 'ti ti-settings',
 	text: i18n.ts.settings,
 	handler: settings,
 }] : []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => list ? {
-	title: list.name,
+definePageMetadata(computed(() => list.value ? {
+	title: list.value.name,
 	icon: 'ti ti-list',
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/user-tag.vue b/packages/frontend/src/pages/user-tag.vue
index 71f8d31924..06269ec9a9 100644
--- a/packages/frontend/src/pages/user-tag.vue
+++ b/packages/frontend/src/pages/user-tag.vue
@@ -25,7 +25,7 @@ const props = defineProps<{
 	tag: string;
 }>();
 
-const tagUsers = $computed(() => ({
+const tagUsers = computed(() => ({
 	endpoint: 'hashtags/users' as const,
 	limit: 30,
 	params: {
diff --git a/packages/frontend/src/pages/user/activity.following.vue b/packages/frontend/src/pages/user/activity.following.vue
index bc6bf77168..bd1159cb32 100644
--- a/packages/frontend/src/pages/user/activity.following.vue
+++ b/packages/frontend/src/pages/user/activity.following.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, shallowRef, ref } from 'vue';
 import { Chart, ChartDataset } from 'chart.js';
 import * as Misskey from 'misskey-js';
 import gradient from 'chartjs-plugin-gradient';
@@ -32,12 +32,12 @@ const props = defineProps<{
 	user: Misskey.entities.User;
 }>();
 
-const chartEl = $shallowRef<HTMLCanvasElement>(null);
-let legendEl = $shallowRef<InstanceType<typeof MkChartLegend>>();
+const chartEl = shallowRef<HTMLCanvasElement>(null);
+const legendEl = shallowRef<InstanceType<typeof MkChartLegend>>();
 const now = new Date();
 let chartInstance: Chart = null;
 const chartLimit = 30;
-let fetching = $ref(true);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 
@@ -88,7 +88,7 @@ async function renderChart() {
 		}, extra);
 	}
 
-	chartInstance = new Chart(chartEl, {
+	chartInstance = new Chart(chartEl.value, {
 		type: 'bar',
 		data: {
 			datasets: [
@@ -162,10 +162,10 @@ async function renderChart() {
 				gradient,
 			},
 		},
-		plugins: [chartVLine(vLineColor), chartLegend(legendEl)],
+		plugins: [chartVLine(vLineColor), chartLegend(legendEl.value)],
 	});
 
-	fetching = false;
+	fetching.value = false;
 }
 
 onMounted(async () => {
diff --git a/packages/frontend/src/pages/user/activity.heatmap.vue b/packages/frontend/src/pages/user/activity.heatmap.vue
index 73bec2487e..ff46db9653 100644
--- a/packages/frontend/src/pages/user/activity.heatmap.vue
+++ b/packages/frontend/src/pages/user/activity.heatmap.vue
@@ -13,7 +13,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted, nextTick, watch } from 'vue';
+import { onMounted, nextTick, watch, shallowRef, ref } from 'vue';
 import { Chart } from 'chart.js';
 import * as Misskey from 'misskey-js';
 import * as os from '@/os.js';
@@ -29,11 +29,11 @@ const props = defineProps<{
 	user: Misskey.entities.User;
 }>();
 
-const rootEl = $shallowRef<HTMLDivElement>(null);
-const chartEl = $shallowRef<HTMLCanvasElement>(null);
+const rootEl = shallowRef<HTMLDivElement>(null);
+const chartEl = shallowRef<HTMLCanvasElement>(null);
 const now = new Date();
 let chartInstance: Chart = null;
-let fetching = $ref(true);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip({
 	position: 'middle',
@@ -44,8 +44,8 @@ async function renderChart() {
 		chartInstance.destroy();
 	}
 
-	const wide = rootEl.offsetWidth > 700;
-	const narrow = rootEl.offsetWidth < 400;
+	const wide = rootEl.value.offsetWidth > 700;
+	const narrow = rootEl.value.offsetWidth < 400;
 
 	const weeks = wide ? 50 : narrow ? 10 : 25;
 	const chartLimit = 7 * weeks;
@@ -78,7 +78,7 @@ async function renderChart() {
 		values = raw.inc;
 	}
 
-	fetching = false;
+	fetching.value = false;
 
 	await nextTick();
 
@@ -91,7 +91,7 @@ async function renderChart() {
 
 	const marginEachCell = 4;
 
-	chartInstance = new Chart(chartEl, {
+	chartInstance = new Chart(chartEl.value, {
 		type: 'matrix',
 		data: {
 			datasets: [{
@@ -203,7 +203,7 @@ async function renderChart() {
 }
 
 watch(() => props.src, () => {
-	fetching = true;
+	fetching.value = true;
 	renderChart();
 });
 
diff --git a/packages/frontend/src/pages/user/activity.notes.vue b/packages/frontend/src/pages/user/activity.notes.vue
index 5ba4af7ca1..dd035641d8 100644
--- a/packages/frontend/src/pages/user/activity.notes.vue
+++ b/packages/frontend/src/pages/user/activity.notes.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, shallowRef, ref } from 'vue';
 import { Chart, ChartDataset } from 'chart.js';
 import * as Misskey from 'misskey-js';
 import gradient from 'chartjs-plugin-gradient';
@@ -32,12 +32,12 @@ const props = defineProps<{
 	user: Misskey.entities.User;
 }>();
 
-const chartEl = $shallowRef<HTMLCanvasElement>(null);
-let legendEl = $shallowRef<InstanceType<typeof MkChartLegend>>();
+const chartEl = shallowRef<HTMLCanvasElement>(null);
+const legendEl = shallowRef<InstanceType<typeof MkChartLegend>>();
 const now = new Date();
 let chartInstance: Chart = null;
 const chartLimit = 50;
-let fetching = $ref(true);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 
@@ -87,7 +87,7 @@ async function renderChart() {
 		}, extra);
 	}
 
-	chartInstance = new Chart(chartEl, {
+	chartInstance = new Chart(chartEl.value, {
 		type: 'bar',
 		data: {
 			datasets: [
@@ -161,10 +161,10 @@ async function renderChart() {
 				gradient,
 			},
 		},
-		plugins: [chartVLine(vLineColor), chartLegend(legendEl)],
+		plugins: [chartVLine(vLineColor), chartLegend(legendEl.value)],
 	});
 
-	fetching = false;
+	fetching.value = false;
 }
 
 onMounted(async () => {
diff --git a/packages/frontend/src/pages/user/activity.pv.vue b/packages/frontend/src/pages/user/activity.pv.vue
index 54d1d0c1be..2dd9a1570f 100644
--- a/packages/frontend/src/pages/user/activity.pv.vue
+++ b/packages/frontend/src/pages/user/activity.pv.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, shallowRef, ref } from 'vue';
 import { Chart, ChartDataset } from 'chart.js';
 import * as Misskey from 'misskey-js';
 import gradient from 'chartjs-plugin-gradient';
@@ -32,12 +32,12 @@ const props = defineProps<{
 	user: Misskey.entities.User;
 }>();
 
-const chartEl = $shallowRef<HTMLCanvasElement>(null);
-let legendEl = $shallowRef<InstanceType<typeof MkChartLegend>>();
+const chartEl = shallowRef<HTMLCanvasElement>(null);
+const legendEl = shallowRef<InstanceType<typeof MkChartLegend>>();
 const now = new Date();
 let chartInstance: Chart = null;
 const chartLimit = 30;
-let fetching = $ref(true);
+const fetching = ref(true);
 
 const { handler: externalTooltipHandler } = useChartTooltip();
 
@@ -88,7 +88,7 @@ async function renderChart() {
 		}, extra);
 	}
 
-	chartInstance = new Chart(chartEl, {
+	chartInstance = new Chart(chartEl.value, {
 		type: 'bar',
 		data: {
 			datasets: [
@@ -172,10 +172,10 @@ async function renderChart() {
 				gradient,
 			},
 		},
-		plugins: [chartVLine(vLineColor), chartLegend(legendEl)],
+		plugins: [chartVLine(vLineColor), chartLegend(legendEl.value)],
 	});
 
-	fetching = false;
+	fetching.value = false;
 }
 
 onMounted(async () => {
diff --git a/packages/frontend/src/pages/user/followers.vue b/packages/frontend/src/pages/user/followers.vue
index b744f6aeec..7e893ae849 100644
--- a/packages/frontend/src/pages/user/followers.vue
+++ b/packages/frontend/src/pages/user/followers.vue
@@ -19,7 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import XFollowList from './follow-list.vue';
 import * as os from '@/os.js';
@@ -31,16 +31,16 @@ const props = withDefaults(defineProps<{
 }>(), {
 });
 
-let user = $ref<null | Misskey.entities.UserDetailed>(null);
-let error = $ref(null);
+const user = ref<null | Misskey.entities.UserDetailed>(null);
+const error = ref(null);
 
 function fetchUser(): void {
 	if (props.acct == null) return;
-	user = null;
+	user.value = null;
 	os.api('users/show', Misskey.acct.parse(props.acct)).then(u => {
-		user = u;
+		user.value = u;
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
@@ -48,15 +48,15 @@ watch(() => props.acct, fetchUser, {
 	immediate: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => user ? {
+definePageMetadata(computed(() => user.value ? {
 	icon: 'ti ti-user',
-	title: user.name ? `${user.name} (@${user.username})` : `@${user.username}`,
+	title: user.value.name ? `${user.value.name} (@${user.value.username})` : `@${user.value.username}`,
 	subtitle: i18n.ts.followers,
-	userName: user,
-	avatar: user,
+	userName: user.value,
+	avatar: user.value,
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/user/following.vue b/packages/frontend/src/pages/user/following.vue
index 52f5207119..c5f51712f6 100644
--- a/packages/frontend/src/pages/user/following.vue
+++ b/packages/frontend/src/pages/user/following.vue
@@ -19,7 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed, watch } from 'vue';
+import { computed, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import XFollowList from './follow-list.vue';
 import * as os from '@/os.js';
@@ -31,16 +31,16 @@ const props = withDefaults(defineProps<{
 }>(), {
 });
 
-let user = $ref<null | Misskey.entities.UserDetailed>(null);
-let error = $ref(null);
+const user = ref<null | Misskey.entities.UserDetailed>(null);
+const error = ref(null);
 
 function fetchUser(): void {
 	if (props.acct == null) return;
-	user = null;
+	user.value = null;
 	os.api('users/show', Misskey.acct.parse(props.acct)).then(u => {
-		user = u;
+		user.value = u;
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
@@ -48,15 +48,15 @@ watch(() => props.acct, fetchUser, {
 	immediate: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
-definePageMetadata(computed(() => user ? {
+definePageMetadata(computed(() => user.value ? {
 	icon: 'ti ti-user',
-	title: user.name ? `${user.name} (@${user.username})` : `@${user.username}`,
+	title: user.value.name ? `${user.value.name} (@${user.value.username})` : `@${user.value.username}`,
 	subtitle: i18n.ts.following,
-	userName: user,
-	avatar: user,
+	userName: user.value,
+	avatar: user.value,
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/user/home.vue b/packages/frontend/src/pages/user/home.vue
index 2e5dd705d0..e2b205a401 100644
--- a/packages/frontend/src/pages/user/home.vue
+++ b/packages/frontend/src/pages/user/home.vue
@@ -146,7 +146,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, computed, onMounted, onUnmounted, nextTick, watch } from 'vue';
+import { defineAsyncComponent, computed, onMounted, onUnmounted, nextTick, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkNote from '@/components/MkNote.vue';
 import MkFollowButton from '@/components/MkFollowButton.vue';
@@ -198,19 +198,19 @@ const props = withDefaults(defineProps<{
 
 const router = useRouter();
 
-let user = $ref(props.user);
-let parallaxAnimationId = $ref<null | number>(null);
-let narrow = $ref<null | boolean>(null);
-let rootEl = $ref<null | HTMLElement>(null);
-let bannerEl = $ref<null | HTMLElement>(null);
-let memoTextareaEl = $ref<null | HTMLElement>(null);
-let memoDraft = $ref(props.user.memo);
-let isEditingMemo = $ref(false);
-let moderationNote = $ref(props.user.moderationNote);
-let editModerationNote = $ref(false);
+const user = ref(props.user);
+const parallaxAnimationId = ref<null | number>(null);
+const narrow = ref<null | boolean>(null);
+const rootEl = ref<null | HTMLElement>(null);
+const bannerEl = ref<null | HTMLElement>(null);
+const memoTextareaEl = ref<null | HTMLElement>(null);
+const memoDraft = ref(props.user.memo);
+const isEditingMemo = ref(false);
+const moderationNote = ref(props.user.moderationNote);
+const editModerationNote = ref(false);
 
-watch($$(moderationNote), async () => {
-	await os.api('admin/update-user-note', { userId: props.user.id, text: moderationNote });
+watch(moderationNote, async () => {
+	await os.api('admin/update-user-note', { userId: props.user.id, text: moderationNote.value });
 });
 
 const pagination = {
@@ -221,32 +221,32 @@ const pagination = {
 	})),
 };
 
-const style = $computed(() => {
+const style = computed(() => {
 	if (props.user.bannerUrl == null) return {};
 	return {
 		backgroundImage: `url(${ props.user.bannerUrl })`,
 	};
 });
 
-const age = $computed(() => {
+const age = computed(() => {
 	return calcAge(props.user.birthday);
 });
 
 function menu(ev) {
-	const { menu, cleanup } = getUserMenu(user, router);
+	const { menu, cleanup } = getUserMenu(user.value, router);
 	os.popupMenu(menu, ev.currentTarget ?? ev.target).finally(cleanup);
 }
 
 function parallaxLoop() {
-	parallaxAnimationId = window.requestAnimationFrame(parallaxLoop);
+	parallaxAnimationId.value = window.requestAnimationFrame(parallaxLoop);
 	parallax();
 }
 
 function parallax() {
-	const banner = bannerEl as any;
+	const banner = bannerEl.value as any;
 	if (banner == null) return;
 
-	const top = getScrollPosition(rootEl);
+	const top = getScrollPosition(rootEl.value);
 
 	if (top < 0) return;
 
@@ -256,33 +256,33 @@ function parallax() {
 }
 
 function showMemoTextarea() {
-	isEditingMemo = true;
+	isEditingMemo.value = true;
 	nextTick(() => {
-		memoTextareaEl?.focus();
+		memoTextareaEl.value?.focus();
 	});
 }
 
 function adjustMemoTextarea() {
-	if (!memoTextareaEl) return;
-	memoTextareaEl.style.height = '0px';
-	memoTextareaEl.style.height = `${memoTextareaEl.scrollHeight}px`;
+	if (!memoTextareaEl.value) return;
+	memoTextareaEl.value.style.height = '0px';
+	memoTextareaEl.value.style.height = `${memoTextareaEl.value.scrollHeight}px`;
 }
 
 async function updateMemo() {
 	await api('users/update-memo', {
-		memo: memoDraft,
+		memo: memoDraft.value,
 		userId: props.user.id,
 	});
-	isEditingMemo = false;
+	isEditingMemo.value = false;
 }
 
 watch([props.user], () => {
-	memoDraft = props.user.memo;
+	memoDraft.value = props.user.memo;
 });
 
 onMounted(() => {
 	window.requestAnimationFrame(parallaxLoop);
-	narrow = rootEl!.clientWidth < 1000;
+	narrow.value = rootEl.value!.clientWidth < 1000;
 
 	if (props.user.birthday) {
 		const m = new Date().getMonth() + 1;
@@ -301,8 +301,8 @@ onMounted(() => {
 });
 
 onUnmounted(() => {
-	if (parallaxAnimationId) {
-		window.cancelAnimationFrame(parallaxAnimationId);
+	if (parallaxAnimationId.value) {
+		window.cancelAnimationFrame(parallaxAnimationId.value);
 	}
 });
 </script>
diff --git a/packages/frontend/src/pages/user/index.activity.vue b/packages/frontend/src/pages/user/index.activity.vue
index c531bda598..fe17de9061 100644
--- a/packages/frontend/src/pages/user/index.activity.vue
+++ b/packages/frontend/src/pages/user/index.activity.vue
@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import MkContainer from '@/components/MkContainer.vue';
 import MkChart from '@/components/MkChart.vue';
@@ -34,20 +34,20 @@ const props = withDefaults(defineProps<{
 	limit: 50,
 });
 
-let chartSrc = $ref('per-user-notes');
+const chartSrc = ref('per-user-notes');
 
 function showMenu(ev: MouseEvent) {
 	os.popupMenu([{
 		text: i18n.ts.notes,
-		active: chartSrc === 'per-user-notes',
+		active: chartSrc.value === 'per-user-notes',
 		action: () => {
-			chartSrc = 'per-user-notes';
+			chartSrc.value = 'per-user-notes';
 		},
 	}, {
 		text: i18n.ts.numberOfProfileView,
-		active: chartSrc === 'per-user-pv',
+		active: chartSrc.value === 'per-user-pv',
 		action: () => {
-			chartSrc = 'per-user-pv';
+			chartSrc.value = 'per-user-pv';
 		},
 	}, /*, {
 		text: i18n.ts.following,
diff --git a/packages/frontend/src/pages/user/index.files.vue b/packages/frontend/src/pages/user/index.files.vue
index 72f95ec1a5..32561e6b0b 100644
--- a/packages/frontend/src/pages/user/index.files.vue
+++ b/packages/frontend/src/pages/user/index.files.vue
@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { onMounted } from 'vue';
+import { onMounted, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import { getStaticImageUrl } from '@/scripts/media-proxy.js';
 import { notePage } from '@/filters/note.js';
@@ -47,12 +47,12 @@ const props = defineProps<{
 	user: Misskey.entities.UserDetailed;
 }>();
 
-let fetching = $ref(true);
-let files = $ref<{
+const fetching = ref(true);
+const files = ref<{
 	note: Misskey.entities.Note;
 	file: Misskey.entities.DriveFile;
 }[]>([]);
-let showingFiles = $ref<string[]>([]);
+const showingFiles = ref<string[]>([]);
 
 function thumbnail(image: Misskey.entities.DriveFile): string {
 	return defaultStore.state.disableShowingAnimatedImages
@@ -68,13 +68,13 @@ onMounted(() => {
 	}).then(notes => {
 		for (const note of notes) {
 			for (const file of note.files) {
-				files.push({
+				files.value.push({
 					note,
 					file,
 				});
 			}
 		}
-		fetching = false;
+		fetching.value = false;
 	});
 });
 </script>
diff --git a/packages/frontend/src/pages/user/index.vue b/packages/frontend/src/pages/user/index.vue
index 50cc9a3311..4725aedeee 100644
--- a/packages/frontend/src/pages/user/index.vue
+++ b/packages/frontend/src/pages/user/index.vue
@@ -27,7 +27,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { defineAsyncComponent, computed, watch } from 'vue';
+import { defineAsyncComponent, computed, watch, ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import { acct as getAcct } from '@/filters/user.js';
 import * as os from '@/os.js';
@@ -54,17 +54,17 @@ const props = withDefaults(defineProps<{
 	page: 'home',
 });
 
-let tab = $ref(props.page);
-let user = $ref<null | Misskey.entities.UserDetailed>(null);
-let error = $ref(null);
+const tab = ref(props.page);
+const user = ref<null | Misskey.entities.UserDetailed>(null);
+const error = ref(null);
 
 function fetchUser(): void {
 	if (props.acct == null) return;
-	user = null;
+	user.value = null;
 	os.api('users/show', Misskey.acct.parse(props.acct)).then(u => {
-		user = u;
+		user.value = u;
 	}).catch(err => {
-		error = err;
+		error.value = err;
 	});
 }
 
@@ -72,9 +72,9 @@ watch(() => props.acct, fetchUser, {
 	immediate: true,
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => user ? [{
+const headerTabs = computed(() => user.value ? [{
 	key: 'home',
 	title: i18n.ts.overview,
 	icon: 'ti ti-home',
@@ -86,11 +86,11 @@ const headerTabs = $computed(() => user ? [{
 	key: 'activity',
 	title: i18n.ts.activity,
 	icon: 'ti ti-chart-line',
-}, ...(user.host == null ? [{
+}, ...(user.value.host == null ? [{
 	key: 'achievements',
 	title: i18n.ts.achievements,
 	icon: 'ti ti-medal',
-}] : []), ...($i && ($i.id === user.id)) || user.publicReactions ? [{
+}] : []), ...($i && ($i.id === user.value.id)) || user.value.publicReactions ? [{
 	key: 'reactions',
 	title: i18n.ts.reaction,
 	icon: 'ti ti-mood-happy',
@@ -120,15 +120,15 @@ const headerTabs = $computed(() => user ? [{
 	icon: 'ti ti-code',
 }] : []);
 
-definePageMetadata(computed(() => user ? {
+definePageMetadata(computed(() => user.value ? {
 	icon: 'ti ti-user',
-	title: user.name ? `${user.name} (@${user.username})` : `@${user.username}`,
-	subtitle: `@${getAcct(user)}`,
-	userName: user,
-	avatar: user,
-	path: `/@${user.username}`,
+	title: user.value.name ? `${user.value.name} (@${user.value.username})` : `@${user.value.username}`,
+	subtitle: `@${getAcct(user.value)}`,
+	userName: user.value,
+	avatar: user.value,
+	path: `/@${user.value.username}`,
 	share: {
-		title: user.name,
+		title: user.value.name,
 	},
 } : null));
 </script>
diff --git a/packages/frontend/src/pages/welcome.entrance.a.vue b/packages/frontend/src/pages/welcome.entrance.a.vue
index 89d0eb9a83..a8ce4537e5 100644
--- a/packages/frontend/src/pages/welcome.entrance.a.vue
+++ b/packages/frontend/src/pages/welcome.entrance.a.vue
@@ -33,7 +33,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import * as Misskey from 'misskey-js';
 import XTimeline from './welcome.timeline.vue';
 import MarqueeText from '@/components/MkMarquee.vue';
@@ -48,8 +48,8 @@ import MkNumber from '@/components/MkNumber.vue';
 import MkVisitorDashboard from '@/components/MkVisitorDashboard.vue';
 import { getProxiedImageUrl } from '@/scripts/media-proxy.js';
 
-let meta = $ref<Misskey.entities.MetaResponse>();
-let instances = $ref<Misskey.entities.FederationInstance[]>();
+const meta = ref<Misskey.entities.MetaResponse>();
+const instances = ref<Misskey.entities.FederationInstance[]>();
 
 function getInstanceIcon(instance: Misskey.entities.FederationInstance): string {
 	if (!instance.iconUrl) {
@@ -60,14 +60,14 @@ function getInstanceIcon(instance: Misskey.entities.FederationInstance): string
 }
 
 os.api('meta', { detail: true }).then(_meta => {
-	meta = _meta;
+	meta.value = _meta;
 });
 
 os.apiGet('federation/instances', {
 	sort: '+pubSub',
 	limit: 20,
 }).then(_instances => {
-	instances = _instances;
+	instances.value = _instances;
 });
 </script>
 
diff --git a/packages/frontend/src/pages/welcome.setup.vue b/packages/frontend/src/pages/welcome.setup.vue
index 0e6ce61781..61b86f993d 100644
--- a/packages/frontend/src/pages/welcome.setup.vue
+++ b/packages/frontend/src/pages/welcome.setup.vue
@@ -35,7 +35,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { } from 'vue';
+import { ref } from 'vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
 import { host, version } from '@/config.js';
@@ -44,21 +44,21 @@ import { login } from '@/account.js';
 import { i18n } from '@/i18n.js';
 import MkAnimBg from '@/components/MkAnimBg.vue';
 
-let username = $ref('');
-let password = $ref('');
-let submitting = $ref(false);
+const username = ref('');
+const password = ref('');
+const submitting = ref(false);
 
 function submit() {
-	if (submitting) return;
-	submitting = true;
+	if (submitting.value) return;
+	submitting.value = true;
 
 	os.api('admin/accounts/create', {
-		username: username,
-		password: password,
+		username: username.value,
+		password: password.value,
 	}).then(res => {
 		return login(res.token);
 	}).catch(() => {
-		submitting = false;
+		submitting.value = false;
 
 		os.alert({
 			type: 'error',
diff --git a/packages/frontend/src/pages/welcome.timeline.vue b/packages/frontend/src/pages/welcome.timeline.vue
index 8e2192074d..129131ce4a 100644
--- a/packages/frontend/src/pages/welcome.timeline.vue
+++ b/packages/frontend/src/pages/welcome.timeline.vue
@@ -28,7 +28,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import * as Misskey from 'misskey-js';
-import { onUpdated } from 'vue';
+import { onUpdated, ref, shallowRef } from 'vue';
 import MkReactionsViewer from '@/components/MkReactionsViewer.vue';
 import MkMediaList from '@/components/MkMediaList.vue';
 import MkPoll from '@/components/MkPoll.vue';
@@ -36,20 +36,20 @@ import * as os from '@/os.js';
 import { getScrollContainer } from '@/scripts/scroll.js';
 import { $i } from '@/account.js';
 
-let notes = $ref<Misskey.entities.Note[]>([]);
-let isScrolling = $ref(false);
-let scrollEl = $shallowRef<HTMLElement>();
+const notes = ref<Misskey.entities.Note[]>([]);
+const isScrolling = ref(false);
+const scrollEl = shallowRef<HTMLElement>();
 
 os.apiGet('notes/featured').then(_notes => {
-	notes = _notes;
+	notes.value = _notes;
 });
 
 onUpdated(() => {
-	if (!scrollEl) return;
-	const container = getScrollContainer(scrollEl);
+	if (!scrollEl.value) return;
+	const container = getScrollContainer(scrollEl.value);
 	const containerHeight = container ? container.clientHeight : window.innerHeight;
-	if (scrollEl.offsetHeight > containerHeight) {
-		isScrolling = true;
+	if (scrollEl.value.offsetHeight > containerHeight) {
+		isScrolling.value = true;
 	}
 });
 </script>
diff --git a/packages/frontend/src/pages/welcome.vue b/packages/frontend/src/pages/welcome.vue
index 2e6bb8b38f..f7d262cc8a 100644
--- a/packages/frontend/src/pages/welcome.vue
+++ b/packages/frontend/src/pages/welcome.vue
@@ -11,22 +11,22 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import XSetup from './welcome.setup.vue';
 import XEntrance from './welcome.entrance.a.vue';
 import { instanceName } from '@/config.js';
 import * as os from '@/os.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 
-let meta = $ref(null);
+const meta = ref(null);
 
 os.api('meta', { detail: true }).then(res => {
-	meta = res;
+	meta.value = res;
 });
 
-const headerActions = $computed(() => []);
+const headerActions = computed(() => []);
 
-const headerTabs = $computed(() => []);
+const headerTabs = computed(() => []);
 
 definePageMetadata(computed(() => ({
 	title: instanceName,