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

39 files changed, 600 insertions, 596 deletions

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,