diff --git a/packages/client/src/components/signup.vue b/packages/client/src/components/signup.vue
index dd4a2b18b8..c35d65d5de 100644
--- a/packages/client/src/components/signup.vue
+++ b/packages/client/src/components/signup.vue
@@ -1,255 +1,234 @@
 <template>
 <form class="qlvuhzng _formRoot" autocomplete="new-password" @submit.prevent="onSubmit">
-	<template v-if="meta">
-		<MkInput v-if="meta.disableRegistration" v-model="invitationCode" class="_formBlock" type="text" :spellcheck="false" required>
-			<template #label>{{ $ts.invitationCode }}</template>
-			<template #prefix><i class="fas fa-key"></i></template>
-		</MkInput>
-		<MkInput v-model="username" class="_formBlock" type="text" pattern="^[a-zA-Z0-9_]{1,20}$" :spellcheck="false" required data-cy-signup-username @update:modelValue="onChangeUsername">
-			<template #label>{{ $ts.username }} <div v-tooltip:dialog="$ts.usernameInfo" class="_button _help"><i class="far fa-question-circle"></i></div></template>
-			<template #prefix>@</template>
-			<template #suffix>@{{ host }}</template>
-			<template #caption>
-				<span v-if="usernameState === 'wait'" style="color:#999"><i class="fas fa-spinner fa-pulse fa-fw"></i> {{ $ts.checking }}</span>
-				<span v-else-if="usernameState === 'ok'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.available }}</span>
-				<span v-else-if="usernameState === 'unavailable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.unavailable }}</span>
-				<span v-else-if="usernameState === 'error'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.error }}</span>
-				<span v-else-if="usernameState === 'invalid-format'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.usernameInvalidFormat }}</span>
-				<span v-else-if="usernameState === 'min-range'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.tooShort }}</span>
-				<span v-else-if="usernameState === 'max-range'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.tooLong }}</span>
+	<MkInput v-if="instance.disableRegistration" v-model="invitationCode" class="_formBlock" type="text" :spellcheck="false" required>
+		<template #label>{{ $ts.invitationCode }}</template>
+		<template #prefix><i class="fas fa-key"></i></template>
+	</MkInput>
+	<MkInput v-model="username" class="_formBlock" type="text" pattern="^[a-zA-Z0-9_]{1,20}$" :spellcheck="false" required data-cy-signup-username @update:modelValue="onChangeUsername">
+		<template #label>{{ $ts.username }} <div v-tooltip:dialog="$ts.usernameInfo" class="_button _help"><i class="far fa-question-circle"></i></div></template>
+		<template #prefix>@</template>
+		<template #suffix>@{{ host }}</template>
+		<template #caption>
+			<span v-if="usernameState === 'wait'" style="color:#999"><i class="fas fa-spinner fa-pulse fa-fw"></i> {{ $ts.checking }}</span>
+			<span v-else-if="usernameState === 'ok'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.available }}</span>
+			<span v-else-if="usernameState === 'unavailable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.unavailable }}</span>
+			<span v-else-if="usernameState === 'error'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.error }}</span>
+			<span v-else-if="usernameState === 'invalid-format'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.usernameInvalidFormat }}</span>
+			<span v-else-if="usernameState === 'min-range'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.tooShort }}</span>
+			<span v-else-if="usernameState === 'max-range'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.tooLong }}</span>
+		</template>
+	</MkInput>
+	<MkInput v-if="instance.emailRequiredForSignup" v-model="email" class="_formBlock" :debounce="true" type="email" :spellcheck="false" required data-cy-signup-email @update:modelValue="onChangeEmail">
+		<template #label>{{ $ts.emailAddress }} <div v-tooltip:dialog="$ts._signup.emailAddressInfo" class="_button _help"><i class="far fa-question-circle"></i></div></template>
+		<template #prefix><i class="fas fa-envelope"></i></template>
+		<template #caption>
+			<span v-if="emailState === 'wait'" style="color:#999"><i class="fas fa-spinner fa-pulse fa-fw"></i> {{ $ts.checking }}</span>
+			<span v-else-if="emailState === 'ok'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.available }}</span>
+			<span v-else-if="emailState === 'unavailable:used'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.used }}</span>
+			<span v-else-if="emailState === 'unavailable:format'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.format }}</span>
+			<span v-else-if="emailState === 'unavailable:disposable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.disposable }}</span>
+			<span v-else-if="emailState === 'unavailable:mx'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.mx }}</span>
+			<span v-else-if="emailState === 'unavailable:smtp'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.smtp }}</span>
+			<span v-else-if="emailState === 'unavailable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.unavailable }}</span>
+			<span v-else-if="emailState === 'error'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.error }}</span>
+		</template>
+	</MkInput>
+	<MkInput v-model="password" class="_formBlock" type="password" autocomplete="new-password" required data-cy-signup-password @update:modelValue="onChangePassword">
+		<template #label>{{ $ts.password }}</template>
+		<template #prefix><i class="fas fa-lock"></i></template>
+		<template #caption>
+			<span v-if="passwordStrength == 'low'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.weakPassword }}</span>
+			<span v-if="passwordStrength == 'medium'" style="color: var(--warn)"><i class="fas fa-check fa-fw"></i> {{ $ts.normalPassword }}</span>
+			<span v-if="passwordStrength == 'high'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.strongPassword }}</span>
+		</template>
+	</MkInput>
+	<MkInput v-model="retypedPassword" class="_formBlock" type="password" autocomplete="new-password" required data-cy-signup-password-retype @update:modelValue="onChangePasswordRetype">
+		<template #label>{{ $ts.password }} ({{ $ts.retype }})</template>
+		<template #prefix><i class="fas fa-lock"></i></template>
+		<template #caption>
+			<span v-if="passwordRetypeState == 'match'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.passwordMatched }}</span>
+			<span v-if="passwordRetypeState == 'not-match'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.passwordNotMatched }}</span>
+		</template>
+	</MkInput>
+	<MkSwitch v-if="instance.tosUrl" v-model="ToSAgreement" class="_formBlock tou">
+		<I18n :src="$ts.agreeTo">
+			<template #0>
+				<a :href="instance.tosUrl" class="_link" target="_blank">{{ $ts.tos }}</a>
 			</template>
-		</MkInput>
-		<MkInput v-if="meta.emailRequiredForSignup" v-model="email" class="_formBlock" :debounce="true" type="email" :spellcheck="false" required data-cy-signup-email @update:modelValue="onChangeEmail">
-			<template #label>{{ $ts.emailAddress }} <div v-tooltip:dialog="$ts._signup.emailAddressInfo" class="_button _help"><i class="far fa-question-circle"></i></div></template>
-			<template #prefix><i class="fas fa-envelope"></i></template>
-			<template #caption>
-				<span v-if="emailState === 'wait'" style="color:#999"><i class="fas fa-spinner fa-pulse fa-fw"></i> {{ $ts.checking }}</span>
-				<span v-else-if="emailState === 'ok'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.available }}</span>
-				<span v-else-if="emailState === 'unavailable:used'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.used }}</span>
-				<span v-else-if="emailState === 'unavailable:format'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.format }}</span>
-				<span v-else-if="emailState === 'unavailable:disposable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.disposable }}</span>
-				<span v-else-if="emailState === 'unavailable:mx'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.mx }}</span>
-				<span v-else-if="emailState === 'unavailable:smtp'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts._emailUnavailable.smtp }}</span>
-				<span v-else-if="emailState === 'unavailable'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.unavailable }}</span>
-				<span v-else-if="emailState === 'error'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.error }}</span>
-			</template>
-		</MkInput>
-		<MkInput v-model="password" class="_formBlock" type="password" autocomplete="new-password" required data-cy-signup-password @update:modelValue="onChangePassword">
-			<template #label>{{ $ts.password }}</template>
-			<template #prefix><i class="fas fa-lock"></i></template>
-			<template #caption>
-				<span v-if="passwordStrength == 'low'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.weakPassword }}</span>
-				<span v-if="passwordStrength == 'medium'" style="color: var(--warn)"><i class="fas fa-check fa-fw"></i> {{ $ts.normalPassword }}</span>
-				<span v-if="passwordStrength == 'high'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.strongPassword }}</span>
-			</template>
-		</MkInput>
-		<MkInput v-model="retypedPassword" class="_formBlock" type="password" autocomplete="new-password" required data-cy-signup-password-retype @update:modelValue="onChangePasswordRetype">
-			<template #label>{{ $ts.password }} ({{ $ts.retype }})</template>
-			<template #prefix><i class="fas fa-lock"></i></template>
-			<template #caption>
-				<span v-if="passwordRetypeState == 'match'" style="color: var(--success)"><i class="fas fa-check fa-fw"></i> {{ $ts.passwordMatched }}</span>
-				<span v-if="passwordRetypeState == 'not-match'" style="color: var(--error)"><i class="fas fa-exclamation-triangle fa-fw"></i> {{ $ts.passwordNotMatched }}</span>
-			</template>
-		</MkInput>
-		<MkSwitch v-if="meta.tosUrl" v-model="ToSAgreement" class="_formBlock tou">
-			<I18n :src="$ts.agreeTo">
-				<template #0>
-					<a :href="meta.tosUrl" class="_link" target="_blank">{{ $ts.tos }}</a>
-				</template>
-			</I18n>
-		</MkSwitch>
-		<MkCaptcha v-if="meta.enableHcaptcha" ref="hcaptcha" v-model="hCaptchaResponse" class="_formBlock captcha" provider="hcaptcha" :sitekey="meta.hcaptchaSiteKey"/>
-		<MkCaptcha v-if="meta.enableRecaptcha" ref="recaptcha" v-model="reCaptchaResponse" class="_formBlock captcha" provider="recaptcha" :sitekey="meta.recaptchaSiteKey"/>
-		<MkButton class="_formBlock" type="submit" :disabled="shouldDisableSubmitting" gradate data-cy-signup-submit>{{ $ts.start }}</MkButton>
-	</template>
+		</I18n>
+	</MkSwitch>
+	<MkCaptcha v-if="instance.enableHcaptcha" ref="hcaptcha" v-model="hCaptchaResponse" class="_formBlock captcha" provider="hcaptcha" :sitekey="instance.hcaptchaSiteKey"/>
+	<MkCaptcha v-if="instance.enableRecaptcha" ref="recaptcha" v-model="reCaptchaResponse" class="_formBlock captcha" provider="recaptcha" :sitekey="instance.recaptchaSiteKey"/>
+	<MkButton class="_formBlock" type="submit" :disabled="shouldDisableSubmitting" gradate data-cy-signup-submit>{{ $ts.start }}</MkButton>
 </form>
 </template>
 
-<script lang="ts">
-import { defineComponent, defineAsyncComponent } from 'vue';
+<script lang="ts" setup>
+import { } from 'vue';
 import getPasswordStrength from 'syuilo-password-strength';
 import { toUnicode } from 'punycode/';
 import MkButton from './ui/button.vue';
+import MkCaptcha from './captcha.vue';
 import MkInput from './form/input.vue';
 import MkSwitch from './form/switch.vue';
-import { host, url } from '@/config';
+import * as config from '@/config';
 import * as os from '@/os';
 import { login } from '@/account';
+import { instance } from '@/instance';
+import { i18n } from '@/i18n';
 
-export default defineComponent({
-	components: {
-		MkButton,
-		MkInput,
-		MkSwitch,
-		MkCaptcha: defineAsyncComponent(() => import('./captcha.vue')),
-	},
-
-	props: {
-		autoSet: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-	},
-
-	emits: ['signup'],
-
-	data() {
-		return {
-			host: toUnicode(host),
-			username: '',
-			password: '',
-			retypedPassword: '',
-			invitationCode: '',
-			email: '',
-			url,
-			usernameState: null,
-			emailState: null,
-			passwordStrength: '',
-			passwordRetypeState: null,
-			submitting: false,
-			ToSAgreement: false,
-			hCaptchaResponse: null,
-			reCaptchaResponse: null,
-		};
-	},
-
-	computed: {
-		meta() {
-			return this.$instance;
-		},
-
-		shouldDisableSubmitting(): boolean {
-			return this.submitting ||
-				this.meta.tosUrl && !this.ToSAgreement ||
-				this.meta.enableHcaptcha && !this.hCaptchaResponse ||
-				this.meta.enableRecaptcha && !this.reCaptchaResponse ||
-				this.passwordRetypeState === 'not-match';
-		},
-
-		shouldShowProfileUrl(): boolean {
-			return (this.username !== '' &&
-				this.usernameState !== 'invalid-format' &&
-				this.usernameState !== 'min-range' &&
-				this.usernameState !== 'max-range');
-		},
-	},
-
-	methods: {
-		onChangeUsername() {
-			if (this.username === '') {
-				this.usernameState = null;
-				return;
-			}
-
-			const err =
-				!this.username.match(/^[a-zA-Z0-9_]+$/) ? 'invalid-format' :
-				this.username.length < 1 ? 'min-range' :
-				this.username.length > 20 ? 'max-range' :
-				null;
-
-			if (err) {
-				this.usernameState = err;
-				return;
-			}
-
-			this.usernameState = 'wait';
-
-			os.api('username/available', {
-				username: this.username,
-			}).then(result => {
-				this.usernameState = result.available ? 'ok' : 'unavailable';
-			}).catch(err => {
-				this.usernameState = 'error';
-			});
-		},
-
-		onChangeEmail() {
-			if (this.email === '') {
-				this.emailState = null;
-				return;
-			}
-
-			this.emailState = 'wait';
-
-			os.api('email-address/available', {
-				emailAddress: this.email,
-			}).then(result => {
-				this.emailState = result.available ? 'ok' :
-					result.reason === 'used' ? 'unavailable:used' :
-					result.reason === 'format' ? 'unavailable:format' :
-					result.reason === 'disposable' ? 'unavailable:disposable' :
-					result.reason === 'mx' ? 'unavailable:mx' :
-					result.reason === 'smtp' ? 'unavailable:smtp' :
-					'unavailable';
-			}).catch(err => {
-				this.emailState = 'error';
-			});
-		},
-
-		onChangePassword() {
-			if (this.password === '') {
-				this.passwordStrength = '';
-				return;
-			}
-
-			const strength = getPasswordStrength(this.password);
-			this.passwordStrength = strength > 0.7 ? 'high' : strength > 0.3 ? 'medium' : 'low';
-		},
-
-		onChangePasswordRetype() {
-			if (this.retypedPassword === '') {
-				this.passwordRetypeState = null;
-				return;
-			}
-
-			this.passwordRetypeState = this.password === this.retypedPassword ? 'match' : 'not-match';
-		},
-
-		onSubmit() {
-			if (this.submitting) return;
-			this.submitting = true;
-
-			os.api('signup', {
-				username: this.username,
-				password: this.password,
-				emailAddress: this.email,
-				invitationCode: this.invitationCode,
-				'hcaptcha-response': this.hCaptchaResponse,
-				'g-recaptcha-response': this.reCaptchaResponse,
-			}).then(() => {
-				if (this.meta.emailRequiredForSignup) {
-					os.alert({
-						type: 'success',
-						title: this.$ts._signup.almostThere,
-						text: this.$t('_signup.emailSent', { email: this.email }),
-					});
-					this.$emit('signupEmailPending');
-				} else {
-					os.api('signin', {
-						username: this.username,
-						password: this.password,
-					}).then(res => {
-						this.$emit('signup', res);
-
-						if (this.autoSet) {
-							login(res.i);
-						}
-					});
-				}
-			}).catch(() => {
-				this.submitting = false;
-				this.$refs.hcaptcha?.reset?.();
-				this.$refs.recaptcha?.reset?.();
-
-				os.alert({
-					type: 'error',
-					text: this.$ts.somethingHappened,
-				});
-			});
-		},
-	},
+const props = withDefaults(defineProps<{
+	autoSet?: boolean;
+}>(), {
+	autoSet: false,
 });
+
+const emit = defineEmits<{
+	(ev: 'signup', user: Record<string, any>): void;
+	(ev: 'signupEmailPending'): void;
+}>();
+
+const host = toUnicode(config.host);
+
+let hcaptcha = $ref();
+let recaptcha = $ref();
+
+let username: string = $ref('');
+let password: string = $ref('');
+let retypedPassword: string = $ref('');
+let invitationCode: string = $ref('');
+let email = $ref('');
+let usernameState: null | 'wait' | 'ok' | 'unavailable' | 'error' | 'invalid-format' | 'min-range' | 'max-range' = $ref(null);
+let emailState: null | 'wait' | 'ok' | 'unavailable:used' | 'unavailable:format' | 'unavailable:disposable' | 'unavailable:mx' | 'unavailable:smtp' | 'unavailable' | 'error' = $ref(null);
+let passwordStrength: '' | 'low' | 'medium' | 'high' = $ref('');
+let passwordRetypeState: null | 'match' | 'not-match' = $ref(null);
+let submitting: boolean = $ref(false);
+let ToSAgreement: boolean = $ref(false);
+let hCaptchaResponse = $ref(null);
+let reCaptchaResponse = $ref(null);
+
+const shouldDisableSubmitting = $computed((): boolean => {
+	return submitting ||
+		instance.tosUrl && !ToSAgreement ||
+		instance.enableHcaptcha && !hCaptchaResponse ||
+		instance.enableRecaptcha && !reCaptchaResponse ||
+		passwordRetypeState === 'not-match';
+});
+
+function onChangeUsername(): void {
+	if (username === '') {
+		usernameState = null;
+		return;
+	}
+
+	{
+		const err =
+			!username.match(/^[a-zA-Z0-9_]+$/) ? 'invalid-format' :
+			username.length < 1 ? 'min-range' :
+			username.length > 20 ? 'max-range' :
+			null;
+
+		if (err) {
+			usernameState = err;
+			return;
+		}
+	}
+
+	usernameState = 'wait';
+
+	os.api('username/available', {
+		username,
+	}).then(result => {
+		usernameState = result.available ? 'ok' : 'unavailable';
+	}).catch(() => {
+		usernameState = 'error';
+	});
+}
+
+function onChangeEmail(): void {
+	if (email === '') {
+		emailState = null;
+		return;
+	}
+
+	emailState = 'wait';
+
+	os.api('email-address/available', {
+		emailAddress: email,
+	}).then(result => {
+		emailState = result.available ? 'ok' :
+			result.reason === 'used' ? 'unavailable:used' :
+			result.reason === 'format' ? 'unavailable:format' :
+			result.reason === 'disposable' ? 'unavailable:disposable' :
+			result.reason === 'mx' ? 'unavailable:mx' :
+			result.reason === 'smtp' ? 'unavailable:smtp' :
+			'unavailable';
+	}).catch(() => {
+		emailState = 'error';
+	});
+}
+
+function onChangePassword(): void {
+	if (password === '') {
+		passwordStrength = '';
+		return;
+	}
+
+	const strength = getPasswordStrength(password);
+	passwordStrength = strength > 0.7 ? 'high' : strength > 0.3 ? 'medium' : 'low';
+}
+
+function onChangePasswordRetype(): void {
+	if (retypedPassword === '') {
+		passwordRetypeState = null;
+		return;
+	}
+
+	passwordRetypeState = password === retypedPassword ? 'match' : 'not-match';
+}
+
+function onSubmit(): void {
+	if (submitting) return;
+	submitting = true;
+
+	os.api('signup', {
+		username,
+		password,
+		emailAddress: email,
+		invitationCode,
+		'hcaptcha-response': hCaptchaResponse,
+		'g-recaptcha-response': reCaptchaResponse,
+	}).then(() => {
+		if (instance.emailRequiredForSignup) {
+			os.alert({
+				type: 'success',
+				title: i18n.ts._signup.almostThere,
+				text: i18n.t('_signup.emailSent', { email }),
+			});
+			emit('signupEmailPending');
+		} else {
+			os.api('signin', {
+				username,
+				password,
+			}).then(res => {
+				emit('signup', res);
+
+				if (props.autoSet) {
+					login(res.i);
+				}
+			});
+		}
+	}).catch(() => {
+		submitting = false;
+		hcaptcha.reset?.();
+		recaptcha.reset?.();
+
+		os.alert({
+			type: 'error',
+			text: i18n.ts.somethingHappened,
+		});
+	});
+}
 </script>
 
 <style lang="scss" scoped>