diff --git a/locales/index.d.ts b/locales/index.d.ts
index 8f4c9d18e4b5..10c044c46791 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -4684,6 +4684,26 @@ export interface Locale extends ILocale {
      * 外部サービス
      */
     "externalServices": string;
+    /**
+     * ソースコード
+     */
+    "sourcecode": string;
+    /**
+     * リポジトリURL
+     */
+    "repositoryUrl": string;
+    /**
+     * フィードバック
+     */
+    "feedback": string;
+    /**
+     * フィードバックURL
+     */
+    "feedbackUrl": string;
+    /**
+     * {name}を支援
+     */
+    "supportThisInstance": ParameterizedString<"name">;
     /**
      * 運営者情報
      */
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 534850242535..c5809323dffb 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1167,6 +1167,11 @@ hideRepliesToOthersInTimelineAll: "TLに現在フォロー中の人全員の返
 confirmShowRepliesAll: "この操作は元に戻せません。本当にTLに現在フォロー中の人全員の返信を含めるようにしますか？"
 confirmHideRepliesAll: "この操作は元に戻せません。本当にTLに現在フォロー中の人全員の返信を含めないようにしますか？"
 externalServices: "外部サービス"
+sourcecode: "ソースコード"
+repositoryUrl: "リポジトリURL"
+feedback: "フィードバック"
+feedbackUrl: "フィードバックURL"
+supportThisInstance: "{name}を支援"
 impressum: "運営者情報"
 impressumUrl: "運営者情報URL"
 impressumDescription: "ドイツなどの一部の国と地域では表示が義務付けられています(Impressum)。"
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 51075ed3c646..c12c75b197e8 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -104,8 +104,8 @@ export const paramDef = {
 		swPublicKey: { type: 'string', nullable: true },
 		swPrivateKey: { type: 'string', nullable: true },
 		tosUrl: { type: 'string', nullable: true },
-		repositoryUrl: { type: 'string' },
-		feedbackUrl: { type: 'string' },
+		repositoryUrl: { type: 'string', nullable: true },
+		feedbackUrl: { type: 'string', nullable: true },
 		impressumUrl: { type: 'string', nullable: true },
 		privacyPolicyUrl: { type: 'string', nullable: true },
 		useObjectStorage: { type: 'boolean' },
@@ -402,7 +402,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 			}
 
 			if (ps.repositoryUrl !== undefined) {
-				set.repositoryUrl = ps.repositoryUrl;
+				set.repositoryUrl = ps.repositoryUrl ?? 'https://github.com/misskey-dev/misskey';
 			}
 
 			if (ps.feedbackUrl !== undefined) {
diff --git a/packages/frontend/src/pages/about.vue b/packages/frontend/src/pages/about.vue
index f5744bab00cc..fe7ff1acd8a5 100644
--- a/packages/frontend/src/pages/about.vue
+++ b/packages/frontend/src/pages/about.vue
@@ -31,7 +31,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 						</MkKeyValue>
 						<div v-html="i18n.tsx.poweredByMisskeyDescription({ name: instance.name ?? host })">
 						</div>
-						<FormLink to="/about-misskey">{{ i18n.ts.aboutMisskey }}</FormLink>
+						<FormLink to="/about-misskey">
+							<template #icon><i class="ti ti-info-circle"></i></template>
+							{{ i18n.ts.aboutMisskey }}
+						</FormLink>
+						<FormLink :to="instance.repositoryUrl" external>
+							<template #icon><i class="ti ti-code"></i></template>
+							{{ i18n.ts.sourcecode }}
+						</FormLink>
 					</div>
 				</FormSection>
 
@@ -47,17 +54,33 @@ SPDX-License-Identifier: AGPL-3.0-only
 								<template #value>{{ instance.maintainerEmail }}</template>
 							</MkKeyValue>
 						</FormSplit>
-						<FormLink v-if="instance.impressumUrl" :to="instance.impressumUrl" external>{{ i18n.ts.impressum }}</FormLink>
+						<FormLink v-if="instance.impressumUrl" :to="instance.impressumUrl" external>
+							<template #icon><i class="ti ti-user-shield"></i></template>
+							{{ i18n.ts.impressum }}
+						</FormLink>
 						<div class="_gaps_s">
 							<MkFolder v-if="instance.serverRules.length > 0">
-								<template #label>{{ i18n.ts.serverRules }}</template>
+								<template #label>
+									<i class="ti ti-checkup-list"></i>
+									{{ i18n.ts.serverRules }}
+								</template>
 
 								<ol class="_gaps_s" :class="$style.rules">
-									<li v-for="item, index in instance.serverRules" :key="index" :class="$style.rule"><div :class="$style.ruleText" v-html="item"></div></li>
+									<li v-for="(item, index) in instance.serverRules" :key="index" :class="$style.rule"><div :class="$style.ruleText" v-html="item"></div></li>
 								</ol>
 							</MkFolder>
-							<FormLink v-if="instance.tosUrl" :to="instance.tosUrl" external>{{ i18n.ts.termsOfService }}</FormLink>
-							<FormLink v-if="instance.privacyPolicyUrl" :to="instance.privacyPolicyUrl" external>{{ i18n.ts.privacyPolicy }}</FormLink>
+							<FormLink v-if="instance.tosUrl" :to="instance.tosUrl" external>
+								<template #icon><i class="ti ti-license"></i></template>
+								{{ i18n.ts.termsOfService }}
+							</FormLink>
+							<FormLink v-if="instance.privacyPolicyUrl" :to="instance.privacyPolicyUrl" external>
+								<template #icon><i class="ti ti-shield-lock"></i></template>
+								{{ i18n.ts.privacyPolicy }}
+							</FormLink>
+							<FormLink v-if="instance.feedbackUrl" :to="instance.feedbackUrl" external>
+								<template #icon><i class="ti ti-message"></i></template>
+								{{ i18n.ts.feedback }}
+							</FormLink>
 						</div>
 					</div>
 				</FormSection>
diff --git a/packages/frontend/src/pages/admin/branding.vue b/packages/frontend/src/pages/admin/branding.vue
index 8fecdca5b877..f95a5e0fda33 100644
--- a/packages/frontend/src/pages/admin/branding.vue
+++ b/packages/frontend/src/pages/admin/branding.vue
@@ -76,6 +76,16 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #caption>{{ i18n.ts.instanceDefaultThemeDescription }}</template>
 					</MkTextarea>
 
+					<MkInput v-model="repositoryUrl" type="url">
+						<template #prefix><i class="ti ti-link"></i></template>
+						<template #label>{{ i18n.ts.repositoryUrl }}</template>
+					</MkInput>
+
+					<MkInput v-model="feedbackUrl" type="url">
+						<template #prefix><i class="ti ti-link"></i></template>
+						<template #label>{{ i18n.ts.feedbackUrl }}</template>
+					</MkInput>
+
 					<MkTextarea v-model="manifestJsonOverride">
 						<template #label>{{ i18n.ts._serverSettings.manifestJsonOverride }}</template>
 					</MkTextarea>
@@ -120,6 +130,8 @@ const defaultDarkTheme = ref<string | null>(null);
 const serverErrorImageUrl = ref<string | null>(null);
 const infoImageUrl = ref<string | null>(null);
 const notFoundImageUrl = ref<string | null>(null);
+const repositoryUrl = ref<string | null>(null);
+const feedbackUrl = ref<string | null>(null);
 const manifestJsonOverride = ref<string>('{}');
 
 async function init() {
@@ -135,6 +147,8 @@ async function init() {
 	serverErrorImageUrl.value = meta.serverErrorImageUrl;
 	infoImageUrl.value = meta.infoImageUrl;
 	notFoundImageUrl.value = meta.notFoundImageUrl;
+	repositoryUrl.value = meta.repositoryUrl;
+	feedbackUrl.value = meta.feedbackUrl;
 	manifestJsonOverride.value = meta.manifestJsonOverride === '' ? '{}' : JSON.stringify(JSON.parse(meta.manifestJsonOverride), null, '\t');
 }
 
@@ -151,6 +165,8 @@ function save() {
 		infoImageUrl: infoImageUrl.value === '' ? null : infoImageUrl.value,
 		notFoundImageUrl: notFoundImageUrl.value === '' ? null : notFoundImageUrl.value,
 		serverErrorImageUrl: serverErrorImageUrl.value === '' ? null : serverErrorImageUrl.value,
+		repositoryUrl: repositoryUrl.value === '' ? null : repositoryUrl.value,
+		feedbackUrl: feedbackUrl.value === '' ? null : feedbackUrl.value,
 		manifestJsonOverride: manifestJsonOverride.value === '' ? '{}' : JSON.stringify(JSON5.parse(manifestJsonOverride.value)),
 	}).then(() => {
 		fetchInstance();
diff --git a/packages/misskey-js/src/autogen/types.ts b/packages/misskey-js/src/autogen/types.ts
index 94d6673ac549..51c52470784e 100644
--- a/packages/misskey-js/src/autogen/types.ts
+++ b/packages/misskey-js/src/autogen/types.ts
@@ -8472,8 +8472,8 @@ export type operations = {
           swPublicKey?: string | null;
           swPrivateKey?: string | null;
           tosUrl?: string | null;
-          repositoryUrl?: string;
-          feedbackUrl?: string;
+          repositoryUrl?: string | null;
+          feedbackUrl?: string | null;
           impressumUrl?: string | null;
           privacyPolicyUrl?: string | null;
           useObjectStorage?: boolean;