diff --git a/packages/frontend/src/pages/admin/bot-protection.vue b/packages/frontend/src/pages/admin/bot-protection.vue
index 73c5e1919..b34592cd6 100644
--- a/packages/frontend/src/pages/admin/bot-protection.vue
+++ b/packages/frontend/src/pages/admin/bot-protection.vue
@@ -4,145 +4,143 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<div>
-	<FormSuspense :p="init">
-		<div class="_gaps_m">
-			<MkRadios v-model="provider">
-				<option :value="null">{{ i18n.ts.none }} ({{ i18n.ts.notRecommended }})</option>
-				<option value="hcaptcha">hCaptcha</option>
-				<option value="mcaptcha">mCaptcha</option>
-				<option value="recaptcha">reCAPTCHA</option>
-				<option value="turnstile">Turnstile</option>
-			</MkRadios>
+<MkFolder>
+	<template #icon><i class="ti ti-shield"></i></template>
+	<template #label>{{ i18n.ts.botProtection }}</template>
+	<template v-if="botProtectionForm.savedState.provider === 'hcaptcha'" #suffix>hCaptcha</template>
+	<template v-else-if="botProtectionForm.savedState.provider === 'mcaptcha'" #suffix>mCaptcha</template>
+	<template v-else-if="botProtectionForm.savedState.provider === 'recaptcha'" #suffix>reCAPTCHA</template>
+	<template v-else-if="botProtectionForm.savedState.provider === 'turnstile'" #suffix>Turnstile</template>
+	<template v-else #suffix>{{ i18n.ts.none }} ({{ i18n.ts.notRecommended }})</template>
+	<template v-if="botProtectionForm.modified.value" #footer>
+		<MkFormFooter :form="botProtectionForm"/>
+	</template>
 
-			<template v-if="provider === 'hcaptcha'">
-				<MkInput v-model="hcaptchaSiteKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.hcaptchaSiteKey }}</template>
-				</MkInput>
-				<MkInput v-model="hcaptchaSecretKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.hcaptchaSecretKey }}</template>
-				</MkInput>
-				<FormSlot>
-					<template #label>{{ i18n.ts.preview }}</template>
-					<MkCaptcha provider="hcaptcha" :sitekey="hcaptchaSiteKey || '10000000-ffff-ffff-ffff-000000000001'"/>
-				</FormSlot>
-			</template>
-			<template v-else-if="provider === 'mcaptcha'">
-				<MkInput v-model="mcaptchaSiteKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.mcaptchaSiteKey }}</template>
-				</MkInput>
-				<MkInput v-model="mcaptchaSecretKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.mcaptchaSecretKey }}</template>
-				</MkInput>
-				<MkInput v-model="mcaptchaInstanceUrl">
-					<template #prefix><i class="ti ti-link"></i></template>
-					<template #label>{{ i18n.ts.mcaptchaInstanceUrl }}</template>
-				</MkInput>
-				<FormSlot v-if="mcaptchaSiteKey && mcaptchaInstanceUrl">
-					<template #label>{{ i18n.ts.preview }}</template>
-					<MkCaptcha provider="mcaptcha" :sitekey="mcaptchaSiteKey" :instanceUrl="mcaptchaInstanceUrl"/>
-				</FormSlot>
-			</template>
-			<template v-else-if="provider === 'recaptcha'">
-				<MkInput v-model="recaptchaSiteKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.recaptchaSiteKey }}</template>
-				</MkInput>
-				<MkInput v-model="recaptchaSecretKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.recaptchaSecretKey }}</template>
-				</MkInput>
-				<FormSlot v-if="recaptchaSiteKey">
-					<template #label>{{ i18n.ts.preview }}</template>
-					<MkCaptcha provider="recaptcha" :sitekey="recaptchaSiteKey"/>
-				</FormSlot>
-			</template>
-			<template v-else-if="provider === 'turnstile'">
-				<MkInput v-model="turnstileSiteKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.turnstileSiteKey }}</template>
-				</MkInput>
-				<MkInput v-model="turnstileSecretKey">
-					<template #prefix><i class="ti ti-key"></i></template>
-					<template #label>{{ i18n.ts.turnstileSecretKey }}</template>
-				</MkInput>
-				<FormSlot>
-					<template #label>{{ i18n.ts.preview }}</template>
-					<MkCaptcha provider="turnstile" :sitekey="turnstileSiteKey || '1x00000000000000000000AA'"/>
-				</FormSlot>
-			</template>
+	<div class="_gaps_m">
+		<MkRadios v-model="botProtectionForm.state.provider">
+			<option :value="null">{{ i18n.ts.none }} ({{ i18n.ts.notRecommended }})</option>
+			<option value="hcaptcha">hCaptcha</option>
+			<option value="mcaptcha">mCaptcha</option>
+			<option value="recaptcha">reCAPTCHA</option>
+			<option value="turnstile">Turnstile</option>
+		</MkRadios>
 
-			<MkButton primary @click="save"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
-		</div>
-	</FormSuspense>
-</div>
+		<template v-if="botProtectionForm.state.provider === 'hcaptcha'">
+			<MkInput v-model="botProtectionForm.state.hcaptchaSiteKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.hcaptchaSiteKey }}</template>
+			</MkInput>
+			<MkInput v-model="botProtectionForm.state.hcaptchaSecretKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.hcaptchaSecretKey }}</template>
+			</MkInput>
+			<FormSlot>
+				<template #label>{{ i18n.ts.preview }}</template>
+				<MkCaptcha provider="hcaptcha" :sitekey="botProtectionForm.state.hcaptchaSiteKey || '10000000-ffff-ffff-ffff-000000000001'"/>
+			</FormSlot>
+		</template>
+		<template v-else-if="botProtectionForm.state.provider === 'mcaptcha'">
+			<MkInput v-model="botProtectionForm.state.mcaptchaSiteKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.mcaptchaSiteKey }}</template>
+			</MkInput>
+			<MkInput v-model="botProtectionForm.state.mcaptchaSecretKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.mcaptchaSecretKey }}</template>
+			</MkInput>
+			<MkInput v-model="botProtectionForm.state.mcaptchaInstanceUrl">
+				<template #prefix><i class="ti ti-link"></i></template>
+				<template #label>{{ i18n.ts.mcaptchaInstanceUrl }}</template>
+			</MkInput>
+			<FormSlot v-if="botProtectionForm.state.mcaptchaSiteKey && botProtectionForm.state.mcaptchaInstanceUrl">
+				<template #label>{{ i18n.ts.preview }}</template>
+				<MkCaptcha provider="mcaptcha" :sitekey="botProtectionForm.state.mcaptchaSiteKey" :instanceUrl="botProtectionForm.state.mcaptchaInstanceUrl"/>
+			</FormSlot>
+		</template>
+		<template v-else-if="botProtectionForm.state.provider === 'recaptcha'">
+			<MkInput v-model="botProtectionForm.state.recaptchaSiteKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.recaptchaSiteKey }}</template>
+			</MkInput>
+			<MkInput v-model="botProtectionForm.state.recaptchaSecretKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.recaptchaSecretKey }}</template>
+			</MkInput>
+			<FormSlot v-if="botProtectionForm.state.recaptchaSiteKey">
+				<template #label>{{ i18n.ts.preview }}</template>
+				<MkCaptcha provider="recaptcha" :sitekey="botProtectionForm.state.recaptchaSiteKey"/>
+			</FormSlot>
+		</template>
+		<template v-else-if="botProtectionForm.state.provider === 'turnstile'">
+			<MkInput v-model="botProtectionForm.state.turnstileSiteKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.turnstileSiteKey }}</template>
+			</MkInput>
+			<MkInput v-model="botProtectionForm.state.turnstileSecretKey">
+				<template #prefix><i class="ti ti-key"></i></template>
+				<template #label>{{ i18n.ts.turnstileSecretKey }}</template>
+			</MkInput>
+			<FormSlot>
+				<template #label>{{ i18n.ts.preview }}</template>
+				<MkCaptcha provider="turnstile" :sitekey="botProtectionForm.state.turnstileSiteKey || '1x00000000000000000000AA'"/>
+			</FormSlot>
+		</template>
+	</div>
+</MkFolder>
 </template>
 
 <script lang="ts" setup>
 import { defineAsyncComponent, ref } from 'vue';
-import type { CaptchaProvider } from '@/components/MkCaptcha.vue';
 import MkRadios from '@/components/MkRadios.vue';
 import MkInput from '@/components/MkInput.vue';
-import MkButton from '@/components/MkButton.vue';
-import FormSuspense from '@/components/form/suspense.vue';
 import FormSlot from '@/components/form/slot.vue';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
+import { useForm } from '@/scripts/use-form.js';
+import MkFormFooter from '@/components/MkFormFooter.vue';
+import MkFolder from '@/components/MkFolder.vue';
 
 const MkCaptcha = defineAsyncComponent(() => import('@/components/MkCaptcha.vue'));
 
-const provider = ref<CaptchaProvider | null>(null);
-const hcaptchaSiteKey = ref<string | null>(null);
-const hcaptchaSecretKey = ref<string | null>(null);
-const mcaptchaSiteKey = ref<string | null>(null);
-const mcaptchaSecretKey = ref<string | null>(null);
-const mcaptchaInstanceUrl = 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);
+const meta = await misskeyApi('admin/meta');
 
-async function init() {
-	const meta = await misskeyApi('admin/meta');
-	hcaptchaSiteKey.value = meta.hcaptchaSiteKey;
-	hcaptchaSecretKey.value = meta.hcaptchaSecretKey;
-	mcaptchaSiteKey.value = meta.mcaptchaSiteKey;
-	mcaptchaSecretKey.value = meta.mcaptchaSecretKey;
-	mcaptchaInstanceUrl.value = meta.mcaptchaInstanceUrl;
-	recaptchaSiteKey.value = meta.recaptchaSiteKey;
-	recaptchaSecretKey.value = meta.recaptchaSecretKey;
-	turnstileSiteKey.value = meta.turnstileSiteKey;
-	turnstileSecretKey.value = meta.turnstileSecretKey;
-
-	provider.value = meta.enableHcaptcha ? 'hcaptcha' :
-		meta.enableRecaptcha ? 'recaptcha' :
-		meta.enableTurnstile ? 'turnstile' :
-		meta.enableMcaptcha ? 'mcaptcha' : null;
-}
-
-function save() {
-	os.apiWithDialog('admin/update-meta', {
-		enableHcaptcha: provider.value === 'hcaptcha',
-		hcaptchaSiteKey: hcaptchaSiteKey.value,
-		hcaptchaSecretKey: hcaptchaSecretKey.value,
-		enableMcaptcha: provider.value === 'mcaptcha',
-		mcaptchaSiteKey: mcaptchaSiteKey.value,
-		mcaptchaSecretKey: mcaptchaSecretKey.value,
-		mcaptchaInstanceUrl: mcaptchaInstanceUrl.value,
-		enableRecaptcha: provider.value === 'recaptcha',
-		recaptchaSiteKey: recaptchaSiteKey.value,
-		recaptchaSecretKey: recaptchaSecretKey.value,
-		enableTurnstile: provider.value === 'turnstile',
-		turnstileSiteKey: turnstileSiteKey.value,
-		turnstileSecretKey: turnstileSecretKey.value,
-	}).then(() => {
-		fetchInstance(true);
+const botProtectionForm = useForm({
+	provider: meta.enableHcaptcha
+		? 'hcaptcha'
+		: meta.enableRecaptcha
+			? 'recaptcha'
+			: meta.enableTurnstile
+				? 'turnstile'
+				: meta.enableMcaptcha
+					? 'mcaptcha'
+					: null,
+	hcaptchaSiteKey: meta.hcaptchaSiteKey,
+	hcaptchaSecretKey: meta.hcaptchaSecretKey,
+	mcaptchaSiteKey: meta.mcaptchaSiteKey,
+	mcaptchaSecretKey: meta.mcaptchaSecretKey,
+	mcaptchaInstanceUrl: meta.mcaptchaInstanceUrl,
+	recaptchaSiteKey: meta.recaptchaSiteKey,
+	recaptchaSecretKey: meta.recaptchaSecretKey,
+	turnstileSiteKey: meta.turnstileSiteKey,
+	turnstileSecretKey: meta.turnstileSecretKey,
+}, async (state) => {
+	await os.apiWithDialog('admin/update-meta', {
+		enableHcaptcha: state.provider === 'hcaptcha',
+		hcaptchaSiteKey: state.hcaptchaSiteKey,
+		hcaptchaSecretKey: state.hcaptchaSecretKey,
+		enableMcaptcha: state.provider === 'mcaptcha',
+		mcaptchaSiteKey: state.mcaptchaSiteKey,
+		mcaptchaSecretKey: state.mcaptchaSecretKey,
+		mcaptchaInstanceUrl: state.mcaptchaInstanceUrl,
+		enableRecaptcha: state.provider === 'recaptcha',
+		recaptchaSiteKey: state.recaptchaSiteKey,
+		recaptchaSecretKey: state.recaptchaSecretKey,
+		enableTurnstile: state.provider === 'turnstile',
+		turnstileSiteKey: state.turnstileSiteKey,
+		turnstileSecretKey: state.turnstileSecretKey,
 	});
-}
+	fetchInstance(true);
+});
 </script>
diff --git a/packages/frontend/src/pages/admin/security.vue b/packages/frontend/src/pages/admin/security.vue
index 9bccee89a..975a4a126 100644
--- a/packages/frontend/src/pages/admin/security.vue
+++ b/packages/frontend/src/pages/admin/security.vue
@@ -7,119 +7,115 @@ SPDX-License-Identifier: AGPL-3.0-only
 <MkStickyContainer>
 	<template #header><XHeader :actions="headerActions" :tabs="headerTabs"/></template>
 	<MkSpacer :contentMax="700" :marginMin="16" :marginMax="32">
-		<FormSuspense :p="init">
-			<div class="_gaps_m">
-				<MkFolder>
-					<template #icon><i class="ti ti-shield"></i></template>
-					<template #label>{{ i18n.ts.botProtection }}</template>
-					<template v-if="enableHcaptcha" #suffix>hCaptcha</template>
-					<template v-else-if="enableMcaptcha" #suffix>mCaptcha</template>
-					<template v-else-if="enableRecaptcha" #suffix>reCAPTCHA</template>
-					<template v-else-if="enableTurnstile" #suffix>Turnstile</template>
-					<template v-else #suffix>{{ i18n.ts.none }} ({{ i18n.ts.notRecommended }})</template>
+		<div class="_gaps_m">
+			<XBotProtection/>
 
-					<XBotProtection/>
-				</MkFolder>
+			<MkFolder>
+				<template #icon><i class="ti ti-eye-off"></i></template>
+				<template #label>{{ i18n.ts.sensitiveMediaDetection }}</template>
+				<template v-if="sensitiveMediaDetectionForm.savedState.sensitiveMediaDetection === 'all'" #suffix>{{ i18n.ts.all }}</template>
+				<template v-else-if="sensitiveMediaDetectionForm.savedState.sensitiveMediaDetection === 'local'" #suffix>{{ i18n.ts.localOnly }}</template>
+				<template v-else-if="sensitiveMediaDetectionForm.savedState.sensitiveMediaDetection === 'remote'" #suffix>{{ i18n.ts.remoteOnly }}</template>
+				<template v-else #suffix>{{ i18n.ts.none }}</template>
+				<template v-if="sensitiveMediaDetectionForm.modified.value" #footer>
+					<MkFormFooter :form="sensitiveMediaDetectionForm"/>
+				</template>
 
-				<MkFolder>
-					<template #icon><i class="ti ti-eye-off"></i></template>
-					<template #label>{{ i18n.ts.sensitiveMediaDetection }}</template>
-					<template v-if="sensitiveMediaDetection === 'all'" #suffix>{{ i18n.ts.all }}</template>
-					<template v-else-if="sensitiveMediaDetection === 'local'" #suffix>{{ i18n.ts.localOnly }}</template>
-					<template v-else-if="sensitiveMediaDetection === 'remote'" #suffix>{{ i18n.ts.remoteOnly }}</template>
-					<template v-else #suffix>{{ i18n.ts.none }}</template>
+				<div class="_gaps_m">
+					<span>{{ i18n.ts._sensitiveMediaDetection.description }}</span>
 
-					<div class="_gaps_m">
-						<span>{{ i18n.ts._sensitiveMediaDetection.description }}</span>
+					<MkRadios v-model="sensitiveMediaDetectionForm.state.sensitiveMediaDetection">
+						<option value="none">{{ i18n.ts.none }}</option>
+						<option value="all">{{ i18n.ts.all }}</option>
+						<option value="local">{{ i18n.ts.localOnly }}</option>
+						<option value="remote">{{ i18n.ts.remoteOnly }}</option>
+					</MkRadios>
 
-						<MkRadios v-model="sensitiveMediaDetection">
-							<option value="none">{{ i18n.ts.none }}</option>
-							<option value="all">{{ i18n.ts.all }}</option>
-							<option value="local">{{ i18n.ts.localOnly }}</option>
-							<option value="remote">{{ i18n.ts.remoteOnly }}</option>
-						</MkRadios>
+					<MkRange v-model="sensitiveMediaDetectionForm.state.sensitiveMediaDetectionSensitivity" :min="0" :max="4" :step="1" :textConverter="(v) => `${v + 1}`">
+						<template #label>{{ i18n.ts._sensitiveMediaDetection.sensitivity }}</template>
+						<template #caption>{{ i18n.ts._sensitiveMediaDetection.sensitivityDescription }}</template>
+					</MkRange>
 
-						<MkRange v-model="sensitiveMediaDetectionSensitivity" :min="0" :max="4" :step="1" :textConverter="(v) => `${v + 1}`">
-							<template #label>{{ i18n.ts._sensitiveMediaDetection.sensitivity }}</template>
-							<template #caption>{{ i18n.ts._sensitiveMediaDetection.sensitivityDescription }}</template>
-						</MkRange>
+					<MkSwitch v-model="sensitiveMediaDetectionForm.state.enableSensitiveMediaDetectionForVideos">
+						<template #label>{{ i18n.ts._sensitiveMediaDetection.analyzeVideos }}<span class="_beta">{{ i18n.ts.beta }}</span></template>
+						<template #caption>{{ i18n.ts._sensitiveMediaDetection.analyzeVideosDescription }}</template>
+					</MkSwitch>
 
-						<MkSwitch v-model="enableSensitiveMediaDetectionForVideos">
-							<template #label>{{ i18n.ts._sensitiveMediaDetection.analyzeVideos }}<span class="_beta">{{ i18n.ts.beta }}</span></template>
-							<template #caption>{{ i18n.ts._sensitiveMediaDetection.analyzeVideosDescription }}</template>
-						</MkSwitch>
+					<MkSwitch v-model="sensitiveMediaDetectionForm.state.setSensitiveFlagAutomatically">
+						<template #label>{{ i18n.ts._sensitiveMediaDetection.setSensitiveFlagAutomatically }} ({{ i18n.ts.notRecommended }})</template>
+						<template #caption>{{ i18n.ts._sensitiveMediaDetection.setSensitiveFlagAutomaticallyDescription }}</template>
+					</MkSwitch>
 
-						<MkSwitch v-model="setSensitiveFlagAutomatically">
-							<template #label>{{ i18n.ts._sensitiveMediaDetection.setSensitiveFlagAutomatically }} ({{ i18n.ts.notRecommended }})</template>
-							<template #caption>{{ i18n.ts._sensitiveMediaDetection.setSensitiveFlagAutomaticallyDescription }}</template>
-						</MkSwitch>
+					<!-- 現状 false positive が多すぎて実用に耐えない
+					<MkSwitch v-model="disallowUploadWhenPredictedAsPorn">
+						<template #label>{{ i18n.ts._sensitiveMediaDetection.disallowUploadWhenPredictedAsPorn }}</template>
+					</MkSwitch>
+					-->
+				</div>
+			</MkFolder>
 
-						<!-- 現状 false positive が多すぎて実用に耐えない
-						<MkSwitch v-model="disallowUploadWhenPredictedAsPorn">
-							<template #label>{{ i18n.ts._sensitiveMediaDetection.disallowUploadWhenPredictedAsPorn }}</template>
-						</MkSwitch>
-						-->
+			<MkFolder>
+				<template #label>Active Email Validation</template>
+				<template v-if="emailValidationForm.savedState.enableActiveEmailValidation" #suffix>Enabled</template>
+				<template v-else #suffix>Disabled</template>
+				<template v-if="emailValidationForm.modified.value" #footer>
+					<MkFormFooter :form="emailValidationForm"/>
+				</template>
 
-						<MkButton primary @click="save"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
-					</div>
-				</MkFolder>
+				<div class="_gaps_m">
+					<span>{{ i18n.ts.activeEmailValidationDescription }}</span>
+					<MkSwitch v-model="emailValidationForm.state.enableActiveEmailValidation">
+						<template #label>Enable</template>
+					</MkSwitch>
+					<MkSwitch v-model="emailValidationForm.state.enableVerifymailApi">
+						<template #label>Use Verifymail.io API</template>
+					</MkSwitch>
+					<MkInput v-model="emailValidationForm.state.verifymailAuthKey">
+						<template #prefix><i class="ti ti-key"></i></template>
+						<template #label>Verifymail.io API Auth Key</template>
+					</MkInput>
+					<MkSwitch v-model="emailValidationForm.state.enableTruemailApi">
+						<template #label>Use TrueMail API</template>
+					</MkSwitch>
+					<MkInput v-model="emailValidationForm.state.truemailInstance">
+						<template #prefix><i class="ti ti-key"></i></template>
+						<template #label>TrueMail API Instance</template>
+					</MkInput>
+					<MkInput v-model="emailValidationForm.state.truemailAuthKey">
+						<template #prefix><i class="ti ti-key"></i></template>
+						<template #label>TrueMail API Auth Key</template>
+					</MkInput>
+				</div>
+			</MkFolder>
 
-				<MkFolder>
-					<template #label>Active Email Validation</template>
-					<template v-if="enableActiveEmailValidation" #suffix>Enabled</template>
-					<template v-else #suffix>Disabled</template>
+			<MkFolder>
+				<template #label>Banned Email Domains</template>
+				<template v-if="bannedEmailDomainsForm.modified.value" #footer>
+					<MkFormFooter :form="bannedEmailDomainsForm"/>
+				</template>
 
-					<div class="_gaps_m">
-						<span>{{ i18n.ts.activeEmailValidationDescription }}</span>
-						<MkSwitch v-model="enableActiveEmailValidation">
-							<template #label>Enable</template>
-						</MkSwitch>
-						<MkSwitch v-model="enableVerifymailApi">
-							<template #label>Use Verifymail.io API</template>
-						</MkSwitch>
-						<MkInput v-model="verifymailAuthKey">
-							<template #prefix><i class="ti ti-key"></i></template>
-							<template #label>Verifymail.io API Auth Key</template>
-						</MkInput>
-						<MkSwitch v-model="enableTruemailApi">
-							<template #label>Use TrueMail API</template>
-						</MkSwitch>
-						<MkInput v-model="truemailInstance">
-							<template #prefix><i class="ti ti-key"></i></template>
-							<template #label>TrueMail API Instance</template>
-						</MkInput>
-						<MkInput v-model="truemailAuthKey">
-							<template #prefix><i class="ti ti-key"></i></template>
-							<template #label>TrueMail API Auth Key</template>
-						</MkInput>
-						<MkButton primary @click="save"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
-					</div>
-				</MkFolder>
+				<div class="_gaps_m">
+					<MkTextarea v-model="bannedEmailDomainsForm.state.bannedEmailDomains">
+						<template #label>Banned Email Domains List</template>
+					</MkTextarea>
+				</div>
+			</MkFolder>
 
-				<MkFolder>
-					<template #label>Banned Email Domains</template>
+			<MkFolder>
+				<template #label>Log IP address</template>
+				<template v-if="ipLoggingForm.savedState.enableIpLogging" #suffix>Enabled</template>
+				<template v-else #suffix>Disabled</template>
+				<template v-if="ipLoggingForm.modified.value" #footer>
+					<MkFormFooter :form="ipLoggingForm"/>
+				</template>
 
-					<div class="_gaps_m">
-						<MkTextarea v-model="bannedEmailDomains">
-							<template #label>Banned Email Domains List</template>
-						</MkTextarea>
-						<MkButton primary @click="save"><i class="ti ti-device-floppy"></i> {{ i18n.ts.save }}</MkButton>
-					</div>
-				</MkFolder>
-
-				<MkFolder>
-					<template #label>Log IP address</template>
-					<template v-if="enableIpLogging" #suffix>Enabled</template>
-					<template v-else #suffix>Disabled</template>
-
-					<div class="_gaps_m">
-						<MkSwitch v-model="enableIpLogging" @update:modelValue="save">
-							<template #label>Enable</template>
-						</MkSwitch>
-					</div>
-				</MkFolder>
-			</div>
-		</FormSuspense>
+				<div class="_gaps_m">
+					<MkSwitch v-model="ipLoggingForm.state.enableIpLogging">
+						<template #label>Enable</template>
+					</MkSwitch>
+				</div>
+			</MkFolder>
+		</div>
 	</MkSpacer>
 </MkStickyContainer>
 </template>
@@ -131,83 +127,80 @@ import XHeader from './_header_.vue';
 import MkFolder from '@/components/MkFolder.vue';
 import MkRadios from '@/components/MkRadios.vue';
 import MkSwitch from '@/components/MkSwitch.vue';
-import FormSuspense from '@/components/form/suspense.vue';
 import MkRange from '@/components/MkRange.vue';
 import MkInput from '@/components/MkInput.vue';
-import MkButton from '@/components/MkButton.vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { fetchInstance } from '@/instance.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
+import { useForm } from '@/scripts/use-form.js';
+import MkFormFooter from '@/components/MkFormFooter.vue';
 
-const enableHcaptcha = ref<boolean>(false);
-const enableMcaptcha = 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);
-const enableTruemailApi = ref<boolean>(false);
-const truemailInstance = ref<string | null>(null);
-const truemailAuthKey = ref<string | null>(null);
-const bannedEmailDomains = ref<string>('');
+const meta = await misskeyApi('admin/meta');
 
-async function init() {
-	const meta = await misskeyApi('admin/meta');
-	enableHcaptcha.value = meta.enableHcaptcha;
-	enableMcaptcha.value = meta.enableMcaptcha;
-	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.value = meta.setSensitiveFlagAutomatically;
-	enableSensitiveMediaDetectionForVideos.value = meta.enableSensitiveMediaDetectionForVideos;
-	enableIpLogging.value = meta.enableIpLogging;
-	enableActiveEmailValidation.value = meta.enableActiveEmailValidation;
-	enableVerifymailApi.value = meta.enableVerifymailApi;
-	verifymailAuthKey.value = meta.verifymailAuthKey;
-	enableTruemailApi.value = meta.enableTruemailApi;
-	truemailInstance.value = meta.truemailInstance;
-	truemailAuthKey.value = meta.truemailAuthKey;
-	bannedEmailDomains.value = meta.bannedEmailDomains?.join('\n') || '';
-}
-
-function save() {
-	os.apiWithDialog('admin/update-meta', {
-		sensitiveMediaDetection: sensitiveMediaDetection.value,
+const sensitiveMediaDetectionForm = useForm({
+	sensitiveMediaDetection: meta.sensitiveMediaDetection,
+	sensitiveMediaDetectionSensitivity: 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,
+}, async (state) => {
+	await os.apiWithDialog('admin/update-meta', {
+		sensitiveMediaDetection: state.sensitiveMediaDetection,
 		sensitiveMediaDetectionSensitivity:
-			sensitiveMediaDetectionSensitivity.value === 0 ? 'veryLow' :
-			sensitiveMediaDetectionSensitivity.value === 1 ? 'low' :
-			sensitiveMediaDetectionSensitivity.value === 2 ? 'medium' :
-			sensitiveMediaDetectionSensitivity.value === 3 ? 'high' :
-			sensitiveMediaDetectionSensitivity.value === 4 ? 'veryHigh' :
+			state.sensitiveMediaDetectionSensitivity === 0 ? 'veryLow' :
+			state.sensitiveMediaDetectionSensitivity === 1 ? 'low' :
+			state.sensitiveMediaDetectionSensitivity === 2 ? 'medium' :
+			state.sensitiveMediaDetectionSensitivity === 3 ? 'high' :
+			state.sensitiveMediaDetectionSensitivity === 4 ? 'veryHigh' :
 			0,
-		setSensitiveFlagAutomatically: setSensitiveFlagAutomatically.value,
-		enableSensitiveMediaDetectionForVideos: enableSensitiveMediaDetectionForVideos.value,
-		enableIpLogging: enableIpLogging.value,
-		enableActiveEmailValidation: enableActiveEmailValidation.value,
-		enableVerifymailApi: enableVerifymailApi.value,
-		verifymailAuthKey: verifymailAuthKey.value,
-		enableTruemailApi: enableTruemailApi.value,
-		truemailInstance: truemailInstance.value,
-		truemailAuthKey: truemailAuthKey.value,
-		bannedEmailDomains: bannedEmailDomains.value.split('\n'),
-	}).then(() => {
-		fetchInstance(true);
+		setSensitiveFlagAutomatically: state.setSensitiveFlagAutomatically,
+		enableSensitiveMediaDetectionForVideos: state.enableSensitiveMediaDetectionForVideos,
 	});
-}
+	fetchInstance(true);
+});
+
+const ipLoggingForm = useForm({
+	enableIpLogging: meta.enableIpLogging,
+}, async (state) => {
+	await os.apiWithDialog('admin/update-meta', {
+		enableIpLogging: state.enableIpLogging,
+	});
+	fetchInstance(true);
+});
+
+const emailValidationForm = useForm({
+	enableActiveEmailValidation: meta.enableActiveEmailValidation,
+	enableVerifymailApi: meta.enableVerifymailApi,
+	verifymailAuthKey: meta.verifymailAuthKey,
+	enableTruemailApi: meta.enableTruemailApi,
+	truemailInstance: meta.truemailInstance,
+	truemailAuthKey: meta.truemailAuthKey,
+}, async (state) => {
+	await os.apiWithDialog('admin/update-meta', {
+		enableActiveEmailValidation: state.enableActiveEmailValidation,
+		enableVerifymailApi: state.enableVerifymailApi,
+		verifymailAuthKey: state.verifymailAuthKey,
+		enableTruemailApi: state.enableTruemailApi,
+		truemailInstance: state.truemailInstance,
+		truemailAuthKey: state.truemailAuthKey,
+	});
+	fetchInstance(true);
+});
+
+const bannedEmailDomainsForm = useForm({
+	bannedEmailDomains: meta.bannedEmailDomains?.join('\n') || '',
+}, async (state) => {
+	await os.apiWithDialog('admin/update-meta', {
+		bannedEmailDomains: state.bannedEmailDomains.split('\n'),
+	});
+	fetchInstance(true);
+});
 
 const headerActions = computed(() => []);