diff --git a/packages/frontend-embed/src/components/EmNoteDetailed.vue b/packages/frontend-embed/src/components/EmNoteDetailed.vue
index cc9be13a57..e494462f86 100644
--- a/packages/frontend-embed/src/components/EmNoteDetailed.vue
+++ b/packages/frontend-embed/src/components/EmNoteDetailed.vue
@@ -50,7 +50,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 					</div>
 					<div :class="$style.noteHeaderInfo">
 						<a :href="url" :class="$style.noteHeaderInstanceIconLink" target="_blank" rel="noopener noreferrer">
-							<img :src="instance.iconUrl || '/favicon.ico'" alt="" :class="$style.noteHeaderInstanceIcon"/>
+							<img :src="serverMetadataiconUrl || '/favicon.ico'" alt="" :class="$style.noteHeaderInstanceIcon"/>
 						</a>
 					</div>
 				</div>
@@ -142,7 +142,7 @@ import { userPage } from '@/utils.js';
 import { notePage } from '@/utils.js';
 import { i18n } from '@/i18n.js';
 import { shouldCollapsed } from '@/to-be-shared/collapsed.js';
-import { instance } from '@/server-metadata.js';
+import { serverMetadata } from '@/server-metadata.js';
 import { url } from '@/config.js';
 import EmMfm from '@/components/EmMfm.js';
 
diff --git a/packages/frontend-embed/src/instance.ts b/packages/frontend-embed/src/instance.ts
deleted file mode 100644
index 970364667a..0000000000
--- a/packages/frontend-embed/src/instance.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { misskeyApi } from '@/misskey-api.js';
-
-const providedMetaEl = document.getElementById('misskey_meta');
-
-const _instance = (providedMetaEl && providedMetaEl.textContent) ? JSON.parse(providedMetaEl.textContent) : null;
-
-// NOTE: devモードのときしか _instance が null になることは無い
-export const instance = _instance ?? await misskeyApi('meta', {
-	detail: true,
-});
diff --git a/packages/frontend-embed/src/pages/clip.vue b/packages/frontend-embed/src/pages/clip.vue
index bb4f8bf7c5..9cf145d335 100644
--- a/packages/frontend-embed/src/pages/clip.vue
+++ b/packages/frontend-embed/src/pages/clip.vue
@@ -19,7 +19,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<a :href="url" :class="$style.instanceIconLink" target="_blank" rel="noopener noreferrer">
 					<img
 						:class="$style.instanceIcon"
-						:src="instance.iconUrl || '/favicon.ico'"
+						:src="serverMetadataiconUrl || '/favicon.ico'"
 					/>
 				</a>
 			</div>
@@ -41,6 +41,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script setup lang="ts">
 import { ref, computed, shallowRef, inject, onActivated } from 'vue';
 import * as Misskey from 'misskey-js';
+import { scrollToTop } from '@@/js/scroll.js';
 import type { Paging } from '@/components/EmPagination.vue';
 import type { ParsedEmbedParams } from '@/embed-page.js';
 import EmNotes from '@/components/EmNotes.vue';
@@ -48,9 +49,8 @@ import XNotFound from '@/pages/not-found.vue';
 import EmTimelineContainer from '@/components/EmTimelineContainer.vue';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { i18n } from '@/i18n.js';
-import { instance } from '@/server-metadata.js';
+import { serverMetadata } from '@/server-metadata.js';
 import { url, instanceName } from '@/config.js';
-import { scrollToTop } from '@@/js/scroll.js';
 import { isLink } from '@/scripts/is-link.js';
 import { defaultEmbedParams } from '@/embed-page.js';
 
diff --git a/packages/frontend-embed/src/pages/tag.vue b/packages/frontend-embed/src/pages/tag.vue
index 4e1b501421..9f9db00a4b 100644
--- a/packages/frontend-embed/src/pages/tag.vue
+++ b/packages/frontend-embed/src/pages/tag.vue
@@ -18,7 +18,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<a :href="url" :class="$style.instanceIconLink" target="_blank" rel="noopener noreferrer">
 					<img
 						:class="$style.instanceIcon"
-						:src="instance.iconUrl || '/favicon.ico'"
+						:src="serverMetadataiconUrl || '/favicon.ico'"
 					/>
 				</a>
 			</div>
@@ -39,15 +39,15 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script setup lang="ts">
 import { computed, shallowRef, inject, onActivated } from 'vue';
+import { scrollToTop } from '@@/js/scroll.js';
 import type { Paging } from '@/components/MkPagination.vue';
 import type { ParsedEmbedParams } from '@/embed-page.js';
 import EmNotes from '@/components/EmNotes.vue';
 import XNotFound from '@/pages/not-found.vue';
 import EmTimelineContainer from '@/components/EmTimelineContainer.vue';
 import { i18n } from '@/i18n.js';
-import { instance } from '@/server-metadata.js';
+import { serverMetadata } from '@/server-metadata.js';
 import { url, instanceName } from '@/config.js';
-import { scrollToTop } from '@@/js/scroll.js';
 import { isLink } from '@/scripts/is-link.js';
 import { defaultEmbedParams } from '@/embed-page.js';
 
diff --git a/packages/frontend-embed/src/pages/user-timeline.vue b/packages/frontend-embed/src/pages/user-timeline.vue
index 13fbd442a2..61f0f0f8b3 100644
--- a/packages/frontend-embed/src/pages/user-timeline.vue
+++ b/packages/frontend-embed/src/pages/user-timeline.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<a :href="url" :class="$style.instanceIconLink" target="_blank" rel="noopener noreferrer">
 					<img
 						:class="$style.instanceIcon"
-						:src="instance.iconUrl || '/favicon.ico'"
+						:src="serverMetadataiconUrl || '/favicon.ico'"
 					/>
 				</a>
 			</div>
@@ -62,7 +62,7 @@ import XNotFound from '@/pages/not-found.vue';
 import EmTimelineContainer from '@/components/EmTimelineContainer.vue';
 import { misskeyApi } from '@/misskey-api.js';
 import { i18n } from '@/i18n.js';
-import { instance } from '@/server-metadata.js';
+import { serverMetadata } from '@/server-metadata.js';
 import { url, instanceName } from '@/config.js';
 import { defaultEmbedParams } from '@/embed-page.js';
 
diff --git a/packages/frontend-embed/src/server-metadata.ts b/packages/frontend-embed/src/server-metadata.ts
new file mode 100644
index 0000000000..2bd57a0990
--- /dev/null
+++ b/packages/frontend-embed/src/server-metadata.ts
@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { misskeyApi } from '@/misskey-api.js';
+
+const providedMetaEl = document.getElementById('misskey_meta');
+
+const _serverMetadata = (providedMetaEl && providedMetaEl.textContent) ? JSON.parse(providedMetaEl.textContent) : null;
+
+// NOTE: devモードのときしか _serverMetadata が null になることは無い
+export const serverMetadata = _serverMetadata ?? await misskeyApi('meta', {
+	detail: true,
+});
diff --git a/packages/frontend-shared/js/i18n.ts b/packages/frontend-shared/js/i18n.ts
index 3910123c9b..c13f8a559a 100644
--- a/packages/frontend-shared/js/i18n.ts
+++ b/packages/frontend-shared/js/i18n.ts
@@ -4,6 +4,8 @@
  */
 import type { ILocale, ParameterizedString } from '../../../locales/index.js';
 
+type TODO = any;
+
 type FlattenKeys<T extends ILocale, TPrediction> = keyof {
 	[K in keyof T as T[K] extends ILocale
 		? FlattenKeys<T[K], TPrediction> extends infer C extends string
@@ -116,7 +118,7 @@ export class I18n<T extends ILocale> {
 							return () => value;
 						}
 
-						return (arg) => {
+						return (arg: TODO) => {
 							let str = quasis[0];
 
 							for (let i = 0; i < expressions.length; i++) {
@@ -155,7 +157,7 @@ export class I18n<T extends ILocale> {
 				const value = target[k as keyof typeof target];
 
 				if (typeof value === 'object') {
-					result[k] = build(value as ILocale);
+					(result as TODO)[k] = build(value as ILocale);
 				} else if (typeof value === 'string') {
 					const quasis: string[] = [];
 					const expressions: string[] = [];
@@ -182,7 +184,7 @@ export class I18n<T extends ILocale> {
 						continue;
 					}
 
-					result[k] = (arg) => {
+					(result as TODO)[k] = (arg: TODO) => {
 						let str = quasis[0];
 
 						for (let i = 0; i < expressions.length; i++) {
@@ -211,7 +213,7 @@ export class I18n<T extends ILocale> {
 		let str: string | ParameterizedString | ILocale = this.locale;
 
 		for (const k of key.split('.')) {
-			str = str[k];
+			str = (str as TODO)[k];
 
 			if (this.devMode) {
 				if (typeof str === 'undefined') {