diff --git a/packages/client/src/components/MkNoteSub.vue b/packages/client/src/components/MkNoteSub.vue
index aac3f233b..57206f1d8 100644
--- a/packages/client/src/components/MkNoteSub.vue
+++ b/packages/client/src/components/MkNoteSub.vue
@@ -33,16 +33,16 @@ import XNoteHeader from './note-header.vue';
 import MkNoteSubNoteContent from './sub-note-content.vue';
 import XCwButton from './cw-button.vue';
 import { notePage } from '@/filters/note';
-import * as os from '@/os';
 import { i18n } from '@/i18n';
 
 const props = withDefaults(defineProps<{
 	note: misskey.entities.Note;
-	conversation?: misskey.entities.Note[];
+	conversation?: misskey.entities.Note[] | null;
 
 	// how many notes are in between this one and the note being viewed in detail
 	depth?: number;
 }>(), {
+	conversation: null,
 	depth: 1,
 });
 
diff --git a/packages/client/src/components/abuse-report-window.vue b/packages/client/src/components/abuse-report-window.vue
index 1f849c47a..6a94665b5 100644
--- a/packages/client/src/components/abuse-report-window.vue
+++ b/packages/client/src/components/abuse-report-window.vue
@@ -43,12 +43,12 @@ const emit = defineEmits<{
 const uiWindow = ref<InstanceType<typeof XWindow>>();
 const comment = ref('');
 
-function send() {
+function send(): void {
 	os.apiWithDialog('users/report-abuse', {
 		userId: props.user.id,
 		urls: props.urls || [],
 		comment: comment.value,
-	}).then(res => {
+	}).then(() => {
 		os.alert({
 			type: 'success',
 			text: i18n.ts.abuseReported,
diff --git a/packages/client/src/components/abuse-report.vue b/packages/client/src/components/abuse-report.vue
index db087841a..ac285a544 100644
--- a/packages/client/src/components/abuse-report.vue
+++ b/packages/client/src/components/abuse-report.vue
@@ -21,7 +21,7 @@
 		<div v-if="report.urls.length > 0">
 			{{ i18n.ts.notes }}:
 			<ul>
-				<li v-for="url in report.urls"><MkUrl :url="url"/></li>
+				<li v-for="url in report.urls" :key="url"><MkUrl :url="url"/></li>
 			</ul>
 		</div>
 		<hr/>
@@ -47,12 +47,11 @@ import MkButton from '@/components/ui/button.vue';
 import MkSwitch from '@/components/form/switch.vue';
 import MkKeyValue from '@/components/key-value.vue';
 import MkUrl from '@/components/global/url.vue';
-import { acct, userPage } from '@/filters/user';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 
 const props = defineProps<{
-	report: any;
+	report: Record<string, any>;
 }>();
 
 const emit = defineEmits<{
@@ -61,7 +60,7 @@ const emit = defineEmits<{
 
 let forward = $ref(props.report.forwarded);
 
-function resolve() {
+function resolve(): void {
 	os.apiWithDialog('admin/resolve-abuse-user-report', {
 		forward,
 		reportId: props.report.id,
diff --git a/packages/client/src/components/analog-clock.vue b/packages/client/src/components/analog-clock.vue
index 3aa8a0f12..8dac0dc2e 100644
--- a/packages/client/src/components/analog-clock.vue
+++ b/packages/client/src/components/analog-clock.vue
@@ -83,7 +83,7 @@ const graduations = computed(() => {
 	return angles;
 });
 
-function tick() {
+function tick(): void {
 	now.value = new Date();
 }
 
diff --git a/packages/client/src/components/chart-tooltip.vue b/packages/client/src/components/chart-tooltip.vue
index 9b57a1b3d..0f8adbf9a 100644
--- a/packages/client/src/components/chart-tooltip.vue
+++ b/packages/client/src/components/chart-tooltip.vue
@@ -16,7 +16,7 @@
 import { } from 'vue';
 import MkTooltip from './ui/tooltip.vue';
 
-const props = defineProps<{
+defineProps<{
 	showing: boolean;
 	x: number;
 	y: number;
diff --git a/packages/client/src/components/chart.vue b/packages/client/src/components/chart.vue
index fc7c4ff95..2b55badee 100644
--- a/packages/client/src/components/chart.vue
+++ b/packages/client/src/components/chart.vue
@@ -13,7 +13,7 @@
   id-denylist violation when setting it. This is causing about 60+ lint issues.
   As this is part of Chart.js's API it makes sense to disable the check here.
 */
-import { onMounted, ref, watch, PropType, onUnmounted } from 'vue';
+import { onMounted, ref, watch, PropType } from 'vue';
 import {
 	Chart,
 	ArcElement,
@@ -173,7 +173,7 @@ const render = () => {
 	// フォントカラー
 	Chart.defaults.color = getComputedStyle(document.documentElement).getPropertyValue('--fg');
 
-	const maxes = chartData.series.map((x, i) => Math.max(...x.data.map(d => d.y)));
+	const maxes = chartData.series.map((x) => Math.max(...x.data.map(d => d.y)));
 
 	chartInstance = new Chart(chartEl.value, {
 		type: props.bar ? 'bar' : 'line',
@@ -315,7 +315,7 @@ const render = () => {
 		},
 		plugins: [{
 			id: 'vLine',
-			beforeDraw(chart, args, options) {
+			beforeDraw(chart) {
 				if (chart.tooltip._active && chart.tooltip._active.length) {
 					const activePoint = chart.tooltip._active[0];
 					const ctx = chart.ctx;
@@ -337,10 +337,6 @@ const render = () => {
 	});
 };
 
-const exportData = () => {
-	// TODO
-};
-
 const fetchFederationChart = async (): Promise<typeof chartData> => {
 	const raw = await os.apiGet('charts/federation', { limit: props.limit, span: props.span });
 	return {
diff --git a/packages/client/src/components/cropper-dialog.vue b/packages/client/src/components/cropper-dialog.vue
index 28676ebff..4b241436d 100644
--- a/packages/client/src/components/cropper-dialog.vue
+++ b/packages/client/src/components/cropper-dialog.vue
@@ -26,7 +26,7 @@
 </template>
 
 <script lang="ts" setup>
-import { nextTick, onMounted } from 'vue';
+import { onMounted } from 'vue';
 import * as misskey from 'misskey-js';
 import Cropper from 'cropperjs';
 import tinycolor from 'tinycolor2';
diff --git a/packages/client/src/components/date-separated-list.vue b/packages/client/src/components/date-separated-list.vue
index 63055211d..81fca46af 100644
--- a/packages/client/src/components/date-separated-list.vue
+++ b/packages/client/src/components/date-separated-list.vue
@@ -26,7 +26,7 @@ export default defineComponent({
 		},
 	},
 
-	setup(props, { slots, expose }) {
+	setup(props, { slots }) {
 		function getDateText(time: string) {
 			const date = new Date(time).getDate();
 			const month = new Date(time).getMonth() + 1;
diff --git a/packages/client/src/components/drive.folder.vue b/packages/client/src/components/drive.folder.vue
index 7027767f8..7019162dd 100644
--- a/packages/client/src/components/drive.folder.vue
+++ b/packages/client/src/components/drive.folder.vue
@@ -179,10 +179,6 @@ function onDragend() {
 	emit('dragend');
 }
 
-function go() {
-	emit('move', props.folder.id);
-}
-
 function rename() {
 	os.inputText({
 		title: i18n.ts.renameFolder,
@@ -222,10 +218,6 @@ function deleteFolder() {
 	});
 }
 
-function setAsUploadFolder() {
-	defaultStore.set('uploadFolder', props.folder.id);
-}
-
 function onContextmenu(ev: MouseEvent) {
 	os.contextMenu([{
 		text: i18n.ts.openInWindow,
diff --git a/packages/client/src/components/drive.nav-folder.vue b/packages/client/src/components/drive.nav-folder.vue
index c7723be90..a9878baa4 100644
--- a/packages/client/src/components/drive.nav-folder.vue
+++ b/packages/client/src/components/drive.nav-folder.vue
@@ -38,14 +38,6 @@ function onClick() {
 	emit('move', props.folder);
 }
 
-function onMouseover() {
-	hover.value = true;
-}
-
-function onMouseout() {
-	hover.value = false;
-}
-
 function onDragover(ev: DragEvent) {
 	if (!ev.dataTransfer) return;
 
diff --git a/packages/client/src/components/drive.vue b/packages/client/src/components/drive.vue
index ad8b7b99b..e02087a2f 100644
--- a/packages/client/src/components/drive.vue
+++ b/packages/client/src/components/drive.vue
@@ -88,7 +88,7 @@
 </template>
 
 <script lang="ts" setup>
-import { markRaw, nextTick, onActivated, onBeforeUnmount, onMounted, ref, watch } from 'vue';
+import { nextTick, onActivated, onBeforeUnmount, onMounted, ref, watch } from 'vue';
 import * as Misskey from 'misskey-js';
 import XNavFolder from './drive.nav-folder.vue';
 import XFolder from './drive.folder.vue';
diff --git a/packages/client/src/components/file-list-for-admin.vue b/packages/client/src/components/file-list-for-admin.vue
index 5f077466d..59744870d 100644
--- a/packages/client/src/components/file-list-for-admin.vue
+++ b/packages/client/src/components/file-list-for-admin.vue
@@ -31,17 +31,14 @@
 </template>
 
 <script lang="ts" setup>
-import { computed } from 'vue';
 import * as Acct from 'misskey-js/built/acct';
-import MkSwitch from '@/components/ui/switch.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 import MkDriveFileThumbnail from '@/components/drive-file-thumbnail.vue';
 import bytes from '@/filters/bytes';
-import * as os from '@/os';
 import { i18n } from '@/i18n';
 
-const props = defineProps<{
-	pagination: any;
+defineProps<{
+	pagination: Record<string, any>;
 	viewMode: 'grid' | 'list';
 }>();
 </script>
diff --git a/packages/client/src/components/form/input.vue b/packages/client/src/components/form/input.vue
index 5abd57d29..ea479c920 100644
--- a/packages/client/src/components/form/input.vue
+++ b/packages/client/src/components/form/input.vue
@@ -34,7 +34,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs } from 'vue';
+import { onMounted, nextTick, ref, watch, computed, toRefs } from 'vue';
 import { debounce } from 'throttle-debounce';
 import MkButton from '@/components/ui/button.vue';
 import { useInterval } from '@/scripts/use-interval';
@@ -73,7 +73,6 @@ const id = Math.random().toString(); // TODO: uuid?
 const focused = ref(false);
 const changed = ref(false);
 const invalid = ref(false);
-const filled = computed(() => v.value !== '' && v.value != null);
 const inputEl = ref<HTMLElement>();
 const prefixEl = ref<HTMLElement>();
 const suffixEl = ref<HTMLElement>();
@@ -110,7 +109,7 @@ watch(modelValue, newValue => {
 	v.value = newValue;
 });
 
-watch(v, newValue => {
+watch(v, () => {
 	if (!props.manualSave) {
 		if (props.debounce) {
 			debouncedUpdated();
diff --git a/packages/client/src/components/form/range.vue b/packages/client/src/components/form/range.vue
index 387ad26f3..441ddae0b 100644
--- a/packages/client/src/components/form/range.vue
+++ b/packages/client/src/components/form/range.vue
@@ -74,7 +74,7 @@ watch([steppedRawValue, containerEl], calcThumbPosition);
 let ro: ResizeObserver | undefined;
 
 onMounted(() => {
-	ro = new ResizeObserver((entries, observer) => {
+	ro = new ResizeObserver(() => {
 		calcThumbPosition();
 	});
 	ro.observe(containerEl.value);
diff --git a/packages/client/src/components/form/select.vue b/packages/client/src/components/form/select.vue
index 26717182c..725548cfd 100644
--- a/packages/client/src/components/form/select.vue
+++ b/packages/client/src/components/form/select.vue
@@ -27,7 +27,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs, VNode, useSlots } from 'vue';
+import { onMounted, nextTick, ref, watch, computed, toRefs, VNode, useSlots } from 'vue';
 import MkButton from '@/components/ui/button.vue';
 import * as os from '@/os';
 import { useInterval } from '@/scripts/use-interval';
@@ -58,7 +58,6 @@ const v = ref(modelValue.value);
 const focused = ref(false);
 const changed = ref(false);
 const invalid = ref(false);
-const filled = computed(() => v.value !== '' && v.value != null);
 const inputEl = ref(null);
 const prefixEl = ref(null);
 const suffixEl = ref(null);
@@ -83,7 +82,7 @@ watch(modelValue, newValue => {
 	v.value = newValue;
 });
 
-watch(v, newValue => {
+watch(v, () => {
 	if (!props.manualSave) {
 		updated();
 	}
@@ -117,7 +116,7 @@ onMounted(() => {
 	});
 });
 
-const onClick = (ev: MouseEvent) => {
+const onClick = () => {
 	focused.value = true;
 
 	const menu = [];
diff --git a/packages/client/src/components/form/suspense.vue b/packages/client/src/components/form/suspense.vue
index eff69f4fb..b49fde23f 100644
--- a/packages/client/src/components/form/suspense.vue
+++ b/packages/client/src/components/form/suspense.vue
@@ -14,7 +14,6 @@
 
 <script lang="ts" setup>
 import { watch } from 'vue';
-import MkButton from '@/components/ui/button.vue';
 import { defaultStore } from '@/store';
 
 const props = defineProps<{
diff --git a/packages/client/src/components/form/switch.vue b/packages/client/src/components/form/switch.vue
index a676a0119..31ed71a91 100644
--- a/packages/client/src/components/form/switch.vue
+++ b/packages/client/src/components/form/switch.vue
@@ -22,7 +22,6 @@
 
 <script lang="ts" setup>
 import { toRefs, Ref } from 'vue';
-import * as os from '@/os';
 import { i18n } from '@/i18n';
 
 const props = defineProps<{
diff --git a/packages/client/src/components/form/textarea.vue b/packages/client/src/components/form/textarea.vue
index f2b5a4e74..fd29e76e6 100644
--- a/packages/client/src/components/form/textarea.vue
+++ b/packages/client/src/components/form/textarea.vue
@@ -27,7 +27,7 @@
 </template>
 
 <script lang="ts" setup>
-import { defineComponent, onMounted, onUnmounted, nextTick, ref, watch, computed, toRefs } from 'vue';
+import { onMounted, nextTick, watch, computed, toRefs } from 'vue';
 import { debounce } from 'throttle-debounce';
 import MkButton from '@/components/ui/button.vue';
 import { i18n } from '@/i18n';
@@ -41,11 +41,10 @@ const emit = defineEmits<{
 
 const props = withDefaults(defineProps<{
 	modelValue: string;
-	type?: string;
 	required?: boolean;
 	readonly?: boolean;
 	disabled?: boolean;
-	pattern?: string;
+	pattern?: string | undefined;
 	placeholder?: string;
 	autofocus?: boolean;
 	autocomplete?: boolean;
@@ -56,6 +55,8 @@ const props = withDefaults(defineProps<{
 	debounce?: boolean;
 	manualSave?: boolean;
 }>(), {
+	pattern: undefined,
+	placeholder: '',
 	autofocus: false,
 	tall: false,
 	pre: false,
@@ -68,11 +69,8 @@ const v = $ref(modelValue.value);
 
 let focused = $ref(false);
 let changed = $ref(false);
-let invalid = $ref(false);
 let inputEl: HTMLTextAreaElement | null = $ref(null);
 
-const filled = computed(() => modelValue.value !== '' && modelValue.value != null);
-
 const focus = (): void => {
 	inputEl?.focus();
 };
@@ -103,8 +101,6 @@ watch($$(v), () => {
 			updated();
 		}
 	}
-
-	invalid = inputEl?.validity.badInput ?? false;
 });
 
 onMounted(() => {
diff --git a/packages/client/src/components/formula.vue b/packages/client/src/components/formula.vue
index c7df256b5..d6ff61c9f 100644
--- a/packages/client/src/components/formula.vue
+++ b/packages/client/src/components/formula.vue
@@ -4,7 +4,6 @@
 
 <script lang="ts">
 import { defineComponent, defineAsyncComponent } from 'vue';
-import * as os from '@/os';
 
 export default defineComponent({
 	components: {
diff --git a/packages/client/src/components/gallery-post-preview.vue b/packages/client/src/components/gallery-post-preview.vue
index 3b0cc9b23..d113721f7 100644
--- a/packages/client/src/components/gallery-post-preview.vue
+++ b/packages/client/src/components/gallery-post-preview.vue
@@ -18,7 +18,6 @@
 import { defineComponent } from 'vue';
 import { userName } from '@/filters/user';
 import ImgWithBlurhash from '@/components/img-with-blurhash.vue';
-import * as os from '@/os';
 
 export default defineComponent({
 	components: {
diff --git a/packages/client/src/components/global/a.vue b/packages/client/src/components/global/a.vue
index c7cf12e8c..5e1ce811f 100644
--- a/packages/client/src/components/global/a.vue
+++ b/packages/client/src/components/global/a.vue
@@ -5,11 +5,9 @@
 </template>
 
 <script lang="ts" setup>
-import { inject } from 'vue';
 import * as os from '@/os';
 import copyToClipboard from '@/scripts/copy-to-clipboard';
 import { url } from '@/config';
-import { popout as popout_ } from '@/scripts/popout';
 import { i18n } from '@/i18n';
 import { useRouter } from '@/router';
 
@@ -67,32 +65,15 @@ function onContextmenu(ev) {
 	}], ev);
 }
 
-function openWindow() {
-	os.pageWindow(props.to);
-}
-
-function modalWindow() {
-	os.modalPageWindow(props.to);
-}
-
-function popout() {
-	popout_(props.to);
-}
-
 function nav() {
 	if (props.behavior === 'browser') {
 		location.href = props.to;
-		return;
+	} else if (props.behavior === 'window') {
+		os.pageWindow(props.to);
+	} else if (props.behavior === 'modalWindow') {
+		os.modalPageWindow(props.to);
+	} else {
+		router.push(props.to);
 	}
-
-	if (props.behavior) {
-		if (props.behavior === 'window') {
-			return openWindow();
-		} else if (props.behavior === 'modalWindow') {
-			return modalWindow();
-		}
-	}
-
-	router.push(props.to);
 }
 </script>
diff --git a/packages/client/src/components/global/avatar.vue b/packages/client/src/components/global/avatar.vue
index 1d0862761..2e6155659 100644
--- a/packages/client/src/components/global/avatar.vue
+++ b/packages/client/src/components/global/avatar.vue
@@ -10,7 +10,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, watch } from 'vue';
+import { watch } from 'vue';
 import * as misskey from 'misskey-js';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
 import { extractAvgColorFromBlurhash } from '@/scripts/extract-avg-color-from-blurhash';
diff --git a/packages/client/src/components/global/emoji.vue b/packages/client/src/components/global/emoji.vue
index 84e2d7eca..ee5ff7430 100644
--- a/packages/client/src/components/global/emoji.vue
+++ b/packages/client/src/components/global/emoji.vue
@@ -6,7 +6,7 @@ char2filePath<template>
 </template>
 
 <script lang="ts">
-import { computed, defineComponent, ref, watch } from 'vue';
+import { computed, defineComponent } from 'vue';
 import { getStaticImageUrl } from '@/scripts/get-static-image-url';
 import { char2filePath } from '@/scripts/twemoji-base';
 import { defaultStore } from '@/store';
diff --git a/packages/client/src/components/global/loading.vue b/packages/client/src/components/global/loading.vue
index 5a7e362fc..9a8d9f232 100644
--- a/packages/client/src/components/global/loading.vue
+++ b/packages/client/src/components/global/loading.vue
@@ -20,7 +20,7 @@ import { useCssModule } from 'vue';
 
 useCssModule();
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	inline?: boolean;
 	colored?: boolean;
 	mini?: boolean;
diff --git a/packages/client/src/components/global/misskey-flavored-markdown.vue b/packages/client/src/components/global/misskey-flavored-markdown.vue
index d0243db49..856ea999d 100644
--- a/packages/client/src/components/global/misskey-flavored-markdown.vue
+++ b/packages/client/src/components/global/misskey-flavored-markdown.vue
@@ -6,7 +6,7 @@
 import { } from 'vue';
 import MfmCore from '@/components/mfm';
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	text: string;
 	plain?: boolean;
 	nowrap?: boolean;
diff --git a/packages/client/src/components/global/page-header.vue b/packages/client/src/components/global/page-header.vue
index e6917611f..54f9a8bd5 100644
--- a/packages/client/src/components/global/page-header.vue
+++ b/packages/client/src/components/global/page-header.vue
@@ -18,7 +18,7 @@
 			</div>
 		</div>
 		<div v-if="!narrow || hideTitle" class="tabs">
-			<button v-for="tab in tabs" :ref="(el) => tabRefs[tab.key] = el" v-tooltip="tab.title" class="tab _button" :class="{ active: tab.key != null && tab.key === props.tab }" @mousedown="(ev) => onTabMousedown(tab, ev)" @click="(ev) => onTabClick(tab, ev)">
+			<button v-for="tab in tabs" :ref="(el) => tabRefs[tab.key] = el" v-tooltip="tab.title" class="tab _button" :class="{ active: tab.key != null && tab.key === props.tab }" @mousedown="() => onTabMousedown(tab)" @click="(ev) => onTabClick(tab, ev)">
 				<i v-if="tab.icon" class="icon" :class="tab.icon"></i>
 				<span v-if="!tab.iconOnly" class="title">{{ tab.title }}</span>
 			</button>
@@ -34,11 +34,10 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted, onUnmounted, ref, inject, watch, shallowReactive, nextTick, reactive } from 'vue';
+import { onMounted, onUnmounted, ref, inject, watch, nextTick } from 'vue';
 import tinycolor from 'tinycolor2';
 import { popupMenu } from '@/os';
 import { scrollToTop } from '@/scripts/scroll';
-import { i18n } from '@/i18n';
 import { globalEvents } from '@/events';
 import { injectPageMetadata } from '@/scripts/page-metadata';
 
@@ -106,7 +105,7 @@ const onClick = () => {
 	scrollToTop(el, { behavior: 'smooth' });
 };
 
-function onTabMousedown(tab: Tab, ev: MouseEvent): void {
+function onTabMousedown(tab: Tab): void {
 	// ユーザビリティの観点からmousedown時にはonClickは呼ばない
 	if (tab.key) {
 		emit('update:tab', tab.key);
@@ -155,7 +154,7 @@ onMounted(() => {
 
 	if (el && el.parentElement) {
 		narrow = el.parentElement.offsetWidth < 500;
-		ro = new ResizeObserver((entries, observer) => {
+		ro = new ResizeObserver(() => {
 			if (el.parentElement && document.body.contains(el)) {
 				narrow = el.parentElement.offsetWidth < 500;
 			}
diff --git a/packages/client/src/components/global/router-view.vue b/packages/client/src/components/global/router-view.vue
index cd1e78019..5cb4c10d9 100644
--- a/packages/client/src/components/global/router-view.vue
+++ b/packages/client/src/components/global/router-view.vue
@@ -11,7 +11,7 @@
 </template>
 
 <script lang="ts" setup>
-import { inject, nextTick, onMounted, onUnmounted, watch } from 'vue';
+import { inject, onUnmounted, watch } from 'vue';
 import { Router } from '@/nirax';
 import { defaultStore } from '@/store';
 
@@ -29,7 +29,7 @@ let currentPageComponent = $shallowRef(router.getCurrentComponent());
 let currentPageProps = $ref(router.getCurrentProps());
 let key = $ref(router.getCurrentKey());
 
-function onChange({ route, props: newProps, key: newKey }) {
+function onChange({ route, props: newProps, key: newKey }): void {
 	currentPageComponent = route.component;
 	currentPageProps = newProps;
 	key = newKey;
diff --git a/packages/client/src/components/global/spacer.vue b/packages/client/src/components/global/spacer.vue
index 53adf0777..27f6f6dd0 100644
--- a/packages/client/src/components/global/spacer.vue
+++ b/packages/client/src/components/global/spacer.vue
@@ -7,7 +7,7 @@
 </template>
 
 <script lang="ts" setup>
-import { inject, onMounted, onUnmounted, ref } from 'vue';
+import { inject, onMounted, onUnmounted } from 'vue';
 import { deviceKind } from '@/scripts/device-kind';
 
 const props = withDefaults(defineProps<{
@@ -40,7 +40,7 @@ const adjust = (rect: { width: number; height: number; }) => {
 };
 
 onMounted(() => {
-	ro = new ResizeObserver((entries) => {
+	ro = new ResizeObserver(() => {
 		/* iOSが対応していない
 		adjust({
 			width: entries[0].borderBoxSize[0].inlineSize,
diff --git a/packages/client/src/components/global/user-name.vue b/packages/client/src/components/global/user-name.vue
index 090de3df3..1135433d7 100644
--- a/packages/client/src/components/global/user-name.vue
+++ b/packages/client/src/components/global/user-name.vue
@@ -6,7 +6,7 @@
 import { } from 'vue';
 import * as misskey from 'misskey-js';
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	user: misskey.entities.User;
 	nowrap?: boolean;
 }>(), {
diff --git a/packages/client/src/components/instance-stats.vue b/packages/client/src/components/instance-stats.vue
index dad62796c..052d5b69c 100644
--- a/packages/client/src/components/instance-stats.vue
+++ b/packages/client/src/components/instance-stats.vue
@@ -91,7 +91,7 @@ Chart.register(
 	Filler,
 );
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	chartLimit?: number;
 	detailed?: boolean;
 }>(), {
@@ -103,8 +103,7 @@ const chartSrc = $ref('active-users');
 let subDoughnutEl = $ref<HTMLCanvasElement>();
 let pubDoughnutEl = $ref<HTMLCanvasElement>();
 
-const { handler: externalTooltipHandler1 } = useChartTooltip();
-const { handler: externalTooltipHandler2 } = useChartTooltip();
+const { handler: externalTooltipHandler } = useChartTooltip();
 
 function createDoughnut(chartEl, tooltip, data) {
 	return new Chart(chartEl, {
@@ -148,8 +147,8 @@ function createDoughnut(chartEl, tooltip, data) {
 
 onMounted(() => {
 	os.apiGet('federation/stats', { limit: 15 }).then(fedStats => {
-		createDoughnut(subDoughnutEl, externalTooltipHandler1, fedStats.topSubInstances.map(x => ({ name: x.host, color: x.themeColor, value: x.followersCount })).concat([{ name: '(other)', color: '#80808080', value: fedStats.otherFollowersCount }]));
-		createDoughnut(pubDoughnutEl, externalTooltipHandler1, fedStats.topPubInstances.map(x => ({ name: x.host, color: x.themeColor, value: x.followingCount })).concat([{ name: '(other)', color: '#80808080', value: fedStats.otherFollowingCount }]));
+		createDoughnut(subDoughnutEl, externalTooltipHandler, fedStats.topSubInstances.map(x => ({ name: x.host, color: x.themeColor, value: x.followersCount })).concat([{ name: '(other)', color: '#80808080', value: fedStats.otherFollowersCount }]));
+		createDoughnut(pubDoughnutEl, externalTooltipHandler, fedStats.topPubInstances.map(x => ({ name: x.host, color: x.themeColor, value: x.followingCount })).concat([{ name: '(other)', color: '#80808080', value: fedStats.otherFollowingCount }]));
 	});
 });
 </script>
diff --git a/packages/client/src/components/marquee.vue b/packages/client/src/components/marquee.vue
index 5ca04b0b4..276c78d05 100644
--- a/packages/client/src/components/marquee.vue
+++ b/packages/client/src/components/marquee.vue
@@ -47,7 +47,7 @@ export default {
 	},
 	render({
 		$slots, $style, $props: {
-			duration, repeat, paused, reverse,
+			repeat, paused, reverse,
 		},
 	}) {
 		return h('div', { class: [$style.wrap] }, [
diff --git a/packages/client/src/components/media-banner.vue b/packages/client/src/components/media-banner.vue
index e1bd0a187..872b7888d 100644
--- a/packages/client/src/components/media-banner.vue
+++ b/packages/client/src/components/media-banner.vue
@@ -34,15 +34,14 @@ import * as misskey from 'misskey-js';
 import { ColdDeviceStorage } from '@/store';
 import { i18n } from '@/i18n';
 
-const props = withDefaults(defineProps<{
+defineProps<{
 	media: misskey.entities.DriveFile;
-}>(), {
-});
+}>();
 
 const audioEl = $ref<HTMLAudioElement | null>();
 let hide = $ref(true);
 
-function volumechange() {
+function volumechange(): void {
 	if (audioEl) ColdDeviceStorage.set('mediaVolume', audioEl.volume);
 }
 
diff --git a/packages/client/src/components/media-list.vue b/packages/client/src/components/media-list.vue
index 7e330575e..8e14bc374 100644
--- a/packages/client/src/components/media-list.vue
+++ b/packages/client/src/components/media-list.vue
@@ -23,7 +23,6 @@ import XImage from './media-image.vue';
 import XVideo from './media-video.vue';
 import * as os from '@/os';
 import { FILE_TYPE_BROWSERSAFE } from '@/const';
-import { defaultStore } from '@/store';
 
 const props = defineProps<{
 	mediaList: misskey.entities.DriveFile[];
@@ -31,7 +30,6 @@ const props = defineProps<{
 }>();
 
 const gallery = ref(null);
-const pswpZIndex = os.claimZIndex('middle');
 
 onMounted(() => {
 	const lightbox = new PhotoSwipeLightbox({
@@ -183,7 +181,6 @@ const previewable = (file: misskey.entities.DriveFile): boolean => {
 <style lang="scss">
 .pswp {
 	// なぜか機能しない
-  //z-index: v-bind(pswpZIndex);
 	z-index: 2000000;
 }
 </style>
diff --git a/packages/client/src/components/mini-chart.vue b/packages/client/src/components/mini-chart.vue
index c64ce163f..0547fca5b 100644
--- a/packages/client/src/components/mini-chart.vue
+++ b/packages/client/src/components/mini-chart.vue
@@ -26,7 +26,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onUnmounted, watch } from 'vue';
+import { watch } from 'vue';
 import { v4 as uuid } from 'uuid';
 import tinycolor from 'tinycolor2';
 import { useInterval } from '@/scripts/use-interval';
@@ -42,7 +42,6 @@ let polylinePoints = $ref('');
 let polygonPoints = $ref('');
 let headX = $ref<number | null>(null);
 let headY = $ref<number | null>(null);
-let clock = $ref<number | null>(null);
 const accent = tinycolor(getComputedStyle(document.documentElement).getPropertyValue('--accent'));
 const color = accent.toRgbString();
 
diff --git a/packages/client/src/components/modal-page-window.vue b/packages/client/src/components/modal-page-window.vue
index 2fed0d35e..8cb992a12 100644
--- a/packages/client/src/components/modal-page-window.vue
+++ b/packages/client/src/components/modal-page-window.vue
@@ -29,7 +29,7 @@ import { url } from '@/config';
 import * as os from '@/os';
 import { mainRouter, routes } from '@/router';
 import { i18n } from '@/i18n';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { Router } from '@/nirax';
 
 const props = defineProps<{
@@ -43,10 +43,6 @@ defineEmits<{
 
 const router = new Router(routes, props.initialPath);
 
-router.addListener('push', ctx => {
-	
-});
-
 let pageMetadata = $ref<null | ComputedRef<PageMetadata>>();
 let rootEl = $ref();
 let modal = $ref<InstanceType<typeof MkModal>>();
diff --git a/packages/client/src/components/note-detailed.vue b/packages/client/src/components/note-detailed.vue
index b6d5fa724..1708295ad 100644
--- a/packages/client/src/components/note-detailed.vue
+++ b/packages/client/src/components/note-detailed.vue
@@ -113,7 +113,7 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, inject, onMounted, onUnmounted, reactive, ref } from 'vue';
+import { inject, onMounted, ref } from 'vue';
 import * as mfm from 'mfm-js';
 import * as misskey from 'misskey-js';
 import MkNoteSub from './MkNoteSub.vue';
@@ -186,7 +186,7 @@ const directReplies = ref<misskey.entities.Note[]>([]);
 
 const keymap = {
 	'r': () => reply(true),
-	'e|a|plus': () => react(true),
+	'e|a|plus': () => react(),
 	'q': () => renoteButton.value.renote(true),
 	'esc': blur,
 	'm|o': () => menu(true),
@@ -209,7 +209,7 @@ function reply(viaKeyboard = false): void {
 	});
 }
 
-function react(viaKeyboard = false): void {
+function react(): void {
 	pleaseLogin();
 	blur();
 	reactionPicker.show(reactButton.value, reaction => {
diff --git a/packages/client/src/components/note-preview.vue b/packages/client/src/components/note-preview.vue
index a78b49965..ecbbb9b69 100644
--- a/packages/client/src/components/note-preview.vue
+++ b/packages/client/src/components/note-preview.vue
@@ -17,7 +17,7 @@
 <script lang="ts" setup>
 import { } from 'vue';
 
-const props = defineProps<{
+defineProps<{
 	text: string;
 }>();
 </script>
diff --git a/packages/client/src/components/note-simple.vue b/packages/client/src/components/note-simple.vue
index b813b9a2b..f22484a75 100644
--- a/packages/client/src/components/note-simple.vue
+++ b/packages/client/src/components/note-simple.vue
@@ -23,7 +23,7 @@ import XNoteHeader from './note-header.vue';
 import MkNoteSubNoteContent from './sub-note-content.vue';
 import XCwButton from './cw-button.vue';
 
-const props = defineProps<{
+defineProps<{
 	note: misskey.entities.Note;
 	pinned?: boolean;
 }>();
diff --git a/packages/client/src/components/note.vue b/packages/client/src/components/note.vue
index 64607136f..6268ac937 100644
--- a/packages/client/src/components/note.vue
+++ b/packages/client/src/components/note.vue
@@ -80,7 +80,7 @@
 				<button v-if="appearNote.myReaction == null" ref="reactButton" class="button _button" @click="react()">
 					<i class="fas fa-plus"></i>
 				</button>
-				<button v-if="appearNote.myReaction != null" ref="reactButton" class="button _button reacted" @click="undoReact(appearNote)">
+				<button v-if="appearNote.myReaction != null" ref="reactButton" class="button _button reacted" @click="undoReact()">
 					<i class="fas fa-minus"></i>
 				</button>
 				<button ref="menuButton" class="button _button" @click="menu()">
@@ -102,7 +102,7 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, inject, onMounted, onUnmounted, reactive, ref, Ref } from 'vue';
+import { inject, onMounted, ref, Ref } from 'vue';
 import * as mfm from 'mfm-js';
 import * as misskey from 'misskey-js';
 import MkNoteSub from './MkNoteSub.vue';
@@ -178,7 +178,7 @@ const showTicker = (defaultStore.state.instanceTicker === 'always') || (defaultS
 
 const keymap = {
 	'r': () => reply(true),
-	'e|a|plus': () => react(true),
+	'e|a|plus': () => react(),
 	'q': () => renoteButton.value.renote(true),
 	'up|k|shift+tab': focusBefore,
 	'down|j|tab': focusAfter,
@@ -203,7 +203,7 @@ function reply(viaKeyboard = false): void {
 	});
 }
 
-function react(viaKeyboard = false): void {
+function react(): void {
 	pleaseLogin();
 	blur();
 	reactionPicker.show(reactButton.value, reaction => {
@@ -216,11 +216,10 @@ function react(viaKeyboard = false): void {
 	});
 }
 
-function undoReact(note): void {
-	const oldReaction = note.myReaction;
-	if (!oldReaction) return;
+function undoReact(): void {
+	if (!appearNote.myReaction) return;
 	os.api('notes/reactions/delete', {
-		noteId: note.id,
+		noteId: appearNote.id,
 	});
 }
 
diff --git a/packages/client/src/components/notes.vue b/packages/client/src/components/notes.vue
index 29ffef086..e384c47c1 100644
--- a/packages/client/src/components/notes.vue
+++ b/packages/client/src/components/notes.vue
@@ -24,7 +24,7 @@ import XList from '@/components/date-separated-list.vue';
 import MkPagination, { Paging } from '@/components/ui/pagination.vue';
 import { i18n } from '@/i18n';
 
-const props = defineProps<{
+defineProps<{
 	pagination: Paging;
 	noGap?: boolean;
 }>();
diff --git a/packages/client/src/components/notification-toast.vue b/packages/client/src/components/notification-toast.vue
index b808647bb..2278cd106 100644
--- a/packages/client/src/components/notification-toast.vue
+++ b/packages/client/src/components/notification-toast.vue
@@ -1,6 +1,6 @@
 <template>
 <div class="mk-notification-toast" :style="{ zIndex }">
-	<transition :name="$store.state.animation ? 'notification-toast' : ''" appear @after-leave="$emit('closed')">
+	<transition :name="$store.state.animation ? 'notification-toast' : ''" appear @after-leave="emit('closed')">
 		<XNotification v-if="showing" :notification="notification" class="notification _acrylic"/>
 	</transition>
 </div>
diff --git a/packages/client/src/components/notifications.vue b/packages/client/src/components/notifications.vue
index baac2fdca..afa9433a6 100644
--- a/packages/client/src/components/notifications.vue
+++ b/packages/client/src/components/notifications.vue
@@ -17,13 +17,12 @@
 </template>
 
 <script lang="ts" setup>
-import { defineComponent, markRaw, onUnmounted, onMounted, computed, ref } from 'vue';
+import { onUnmounted, onMounted, computed, ref } from 'vue';
 import { notificationTypes } from 'misskey-js';
 import MkPagination, { Paging } from '@/components/ui/pagination.vue';
 import XNotification from '@/components/notification.vue';
 import XList from '@/components/date-separated-list.vue';
 import XNote from '@/components/note.vue';
-import * as os from '@/os';
 import { stream } from '@/stream';
 import { $i } from '@/account';
 import { i18n } from '@/i18n';
@@ -45,7 +44,7 @@ const pagination: Paging = {
 	})),
 };
 
-const onNotification = (notification) => {
+const onNotification = (notification): void => {
 	const isMuted = props.includeTypes ? !props.includeTypes.includes(notification.type) : $i.mutingNotificationTypes.includes(notification.type);
 	if (isMuted || document.visibilityState === 'visible') {
 		stream.send('readNotification', {
diff --git a/packages/client/src/components/object-view.vue b/packages/client/src/components/object-view.vue
index db66049fc..68f1bd562 100644
--- a/packages/client/src/components/object-view.vue
+++ b/packages/client/src/components/object-view.vue
@@ -8,7 +8,7 @@
 import { } from 'vue';
 import XValue from './object-view.value.vue';
 
-const props = defineProps<{
+defineProps<{
 	value: Record<string, unknown>;
 }>();
 </script>
diff --git a/packages/client/src/components/page-preview.vue b/packages/client/src/components/page-preview.vue
index 67cff4de2..7f7ff1a0a 100644
--- a/packages/client/src/components/page-preview.vue
+++ b/packages/client/src/components/page-preview.vue
@@ -17,7 +17,6 @@
 <script lang="ts">
 import { defineComponent } from 'vue';
 import { userName } from '@/filters/user';
-import * as os from '@/os';
 
 export default defineComponent({
 	props: {
diff --git a/packages/client/src/components/page-window.vue b/packages/client/src/components/page-window.vue
index 5b06c7718..589fe642a 100644
--- a/packages/client/src/components/page-window.vue
+++ b/packages/client/src/components/page-window.vue
@@ -24,7 +24,7 @@
 </template>
 
 <script lang="ts" setup>
-import { ComputedRef, inject, provide } from 'vue';
+import { ComputedRef, provide } from 'vue';
 import RouterView from './global/router-view.vue';
 import XWindow from '@/components/ui/window.vue';
 import { popout as _popout } from '@/scripts/popout';
@@ -34,7 +34,7 @@ import * as os from '@/os';
 import { mainRouter, routes } from '@/router';
 import { Router } from '@/nirax';
 import { i18n } from '@/i18n';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 
 const props = defineProps<{
 	initialPath: string;
@@ -108,10 +108,6 @@ const contextmenu = $computed(() => ([{
 	},
 }]));
 
-function menu(ev) {
-	os.popupMenu(contextmenu, ev.currentTarget ?? ev.target);
-}
-
 function back() {
 	history.pop();
 	router.change(history[history.length - 1].path, history[history.length - 1].key);
diff --git a/packages/client/src/components/poll.vue b/packages/client/src/components/poll.vue
index d90af1cfe..1ac68c059 100644
--- a/packages/client/src/components/poll.vue
+++ b/packages/client/src/components/poll.vue
@@ -22,7 +22,7 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, onUnmounted, ref, toRef } from 'vue';
+import { computed, ref } from 'vue';
 import * as misskey from 'misskey-js';
 import { sum } from '@/scripts/array';
 import { pleaseLogin } from '@/scripts/please-login';
diff --git a/packages/client/src/components/post-form.vue b/packages/client/src/components/post-form.vue
index 20e7d08ed..e7f470236 100644
--- a/packages/client/src/components/post-form.vue
+++ b/packages/client/src/components/post-form.vue
@@ -3,8 +3,6 @@
 	v-size="{ max: [310, 500] }" class="gafaadew"
 	:class="{ modal, _popup: modal }"
 	@dragover.stop="onDragover"
-	@dragenter="onDragenter"
-	@dragleave="onDragleave"
 	@drop.stop="onDrop"
 >
 	<header>
@@ -141,8 +139,6 @@ let visibleUsers = $ref([]);
 if (props.initialVisibleUsers) {
 	props.initialVisibleUsers.forEach(pushVisibleUser);
 }
-let autocomplete = $ref(null);
-let draghover = $ref(false);
 let quoteId = $ref(null);
 let hasNotSpecifiedMentions = $ref(false);
 let recentHashtags = $ref(JSON.parse(localStorage.getItem('hashtags') || '[]'));
@@ -337,10 +333,6 @@ function togglePoll() {
 	}
 }
 
-function addTag(tag: string) {
-	insertTextAtCursor(textareaEl, ` #${tag} `);
-}
-
 function focus() {
 	if (textareaEl) {
 		textareaEl.focus();
@@ -438,7 +430,7 @@ function onCompositionUpdate(ev: CompositionEvent) {
 	typing();
 }
 
-function onCompositionEnd(ev: CompositionEvent) {
+function onCompositionEnd() {
 	imeText = '';
 }
 
@@ -478,22 +470,11 @@ function onDragover(ev) {
 	const isDriveFile = ev.dataTransfer.types[0] === _DATA_TRANSFER_DRIVE_FILE_;
 	if (isFile || isDriveFile) {
 		ev.preventDefault();
-		draghover = true;
 		ev.dataTransfer.dropEffect = ev.dataTransfer.effectAllowed === 'all' ? 'copy' : 'move';
 	}
 }
 
-function onDragenter(ev) {
-	draghover = true;
-}
-
-function onDragleave(ev) {
-	draghover = false;
-}
-
 function onDrop(ev): void {
-	draghover = false;
-
 	// ファイルだったら
 	if (ev.dataTransfer.files.length > 0) {
 		ev.preventDefault();
diff --git a/packages/client/src/components/queue-chart.vue b/packages/client/src/components/queue-chart.vue
index 71b549e9e..8a02752d7 100644
--- a/packages/client/src/components/queue-chart.vue
+++ b/packages/client/src/components/queue-chart.vue
@@ -21,8 +21,6 @@ import {
 	SubTitle,
 	Filler,
 } from 'chart.js';
-import number from '@/filters/number';
-import * as os from '@/os';
 import { defaultStore } from '@/store';
 
 Chart.register(
diff --git a/packages/client/src/components/reaction-icon.vue b/packages/client/src/components/reaction-icon.vue
index 5638c9a81..7d971c65d 100644
--- a/packages/client/src/components/reaction-icon.vue
+++ b/packages/client/src/components/reaction-icon.vue
@@ -1,13 +1,15 @@
 <template>
-<MkEmoji :emoji="reaction" :custom-emojis="customEmojis || []" :is-reaction="true" :normal="true" :no-style="noStyle"/>
+<MkEmoji :emoji="reaction" :custom-emojis="customEmojis" :is-reaction="true" :normal="true" :no-style="noStyle"/>
 </template>
 
 <script lang="ts" setup>
 import { } from 'vue';
 
-const props = defineProps<{
+withDefaults(defineProps<{
 	reaction: string;
-	customEmojis?: any[]; // TODO
+	customEmojis?: Record<string, any>[]; // TODO
 	noStyle?: boolean;
-}>();
+}>(), {
+	customEmojis: [];
+});
 </script>
diff --git a/packages/client/src/components/reaction-tooltip.vue b/packages/client/src/components/reaction-tooltip.vue
index b53061df4..521d7c6e8 100644
--- a/packages/client/src/components/reaction-tooltip.vue
+++ b/packages/client/src/components/reaction-tooltip.vue
@@ -12,9 +12,9 @@ import { } from 'vue';
 import MkTooltip from './ui/tooltip.vue';
 import XReactionIcon from './reaction-icon.vue';
 
-const props = defineProps<{
+defineProps<{
 	reaction: string;
-	emojis: any[]; // TODO
+	emojis: Record<string, any>[]; // TODO
 	targetElement: HTMLElement;
 }>();
 
diff --git a/packages/client/src/components/reactions-viewer.details.vue b/packages/client/src/components/reactions-viewer.details.vue
index eb889c488..2409fd890 100644
--- a/packages/client/src/components/reactions-viewer.details.vue
+++ b/packages/client/src/components/reactions-viewer.details.vue
@@ -21,11 +21,11 @@ import { } from 'vue';
 import MkTooltip from './ui/tooltip.vue';
 import XReactionIcon from './reaction-icon.vue';
 
-const props = defineProps<{
+defineProps<{
 	reaction: string;
-	users: any[]; // TODO
+	users: Record<string, any>[]; // TODO
 	count: number;
-	emojis: any[]; // TODO
+	emojis: Record<string, any>[]; // TODO
 	targetElement: HTMLElement;
 }>();
 
diff --git a/packages/client/src/components/signin-dialog.vue b/packages/client/src/components/signin-dialog.vue
index ec68668a7..77741fb78 100644
--- a/packages/client/src/components/signin-dialog.vue
+++ b/packages/client/src/components/signin-dialog.vue
@@ -18,7 +18,7 @@ import MkSignin from './signin.vue';
 import XModalWindow from '@/components/ui/modal-window.vue';
 import { i18n } from '@/i18n';
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	autoSet?: boolean;
 	message?: string,
 }>(), {
@@ -34,12 +34,12 @@ const emit = defineEmits<{
 
 const dialog = $ref<InstanceType<typeof XModalWindow>>();
 
-function onClose() {
+function onClose(): void {
 	emit('cancelled');
 	dialog.close();
 }
 
-function onLogin(res) {
+function onLogin(res): void {
 	emit('done', res);
 	dialog.close();
 }
diff --git a/packages/client/src/components/signin.vue b/packages/client/src/components/signin.vue
index 0f95aee5e..de6739e50 100644
--- a/packages/client/src/components/signin.vue
+++ b/packages/client/src/components/signin.vue
@@ -69,7 +69,6 @@ let password = $ref('');
 let token = $ref('');
 let host = $ref(toUnicode(configHost));
 let totpLogin = $ref(false);
-let credential = $ref(null);
 let challengeData = $ref(null);
 let queryingKey = $ref(false);
 let hCaptchaResponse = $ref(null);
diff --git a/packages/client/src/components/signup-dialog.vue b/packages/client/src/components/signup-dialog.vue
index c5f933f6b..618b426b8 100644
--- a/packages/client/src/components/signup-dialog.vue
+++ b/packages/client/src/components/signup-dialog.vue
@@ -10,7 +10,7 @@
 
 	<div class="_monolithic_">
 		<div class="_section">
-			<XSignup :auto-set="autoSet" @signup="onSignup" @signupEmailPending="onSignupEmailPending"/>
+			<XSignup :auto-set="autoSet" @signup="onSignup" @signup-email-pending="onSignupEmailPending"/>
 		</div>
 	</div>
 </XModalWindow>
@@ -22,7 +22,7 @@ import XSignup from './signup.vue';
 import XModalWindow from '@/components/ui/modal-window.vue';
 import { i18n } from '@/i18n';
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	autoSet?: boolean;
 }>(), {
 	autoSet: false,
@@ -35,12 +35,12 @@ const emit = defineEmits<{
 
 const dialog = $ref<InstanceType<typeof XModalWindow>>();
 
-function onSignup(res) {
+function onSignup(res): void {
 	emit('done', res);
 	dialog.close();
 }
 
-function onSignupEmailPending() {
+function onSignupEmailPending(): void {
 	dialog.close();
 }
 </script>
diff --git a/packages/client/src/components/sparkle.vue b/packages/client/src/components/sparkle.vue
index b52dbe31c..a72ea6976 100644
--- a/packages/client/src/components/sparkle.vue
+++ b/packages/client/src/components/sparkle.vue
@@ -65,7 +65,6 @@
 
 <script lang="ts">
 import { defineComponent, onMounted, onUnmounted, ref } from 'vue';
-import * as os from '@/os';
 
 export default defineComponent({
 	setup() {
@@ -78,7 +77,7 @@ export default defineComponent({
 		let ro: ResizeObserver | undefined;
 
 		onMounted(() => {
-			ro = new ResizeObserver((entries, observer) => {
+			ro = new ResizeObserver(() => {
 				width.value = el.value?.offsetWidth + 64;
 				height.value = el.value?.offsetHeight + 64;
 			});
diff --git a/packages/client/src/components/timeline.vue b/packages/client/src/components/timeline.vue
index ecea65702..c3ad04c16 100644
--- a/packages/client/src/components/timeline.vue
+++ b/packages/client/src/components/timeline.vue
@@ -3,9 +3,8 @@
 </template>
 
 <script lang="ts" setup>
-import { ref, computed, provide, onUnmounted } from 'vue';
+import { computed, provide, onUnmounted } from 'vue';
 import XNotes from './notes.vue';
-import * as os from '@/os';
 import { stream } from '@/stream';
 import * as sound from '@/scripts/sound';
 import { $i } from '@/account';
diff --git a/packages/client/src/components/ui/container.vue b/packages/client/src/components/ui/container.vue
index ff52388ab..f7d668b1a 100644
--- a/packages/client/src/components/ui/container.vue
+++ b/packages/client/src/components/ui/container.vue
@@ -97,7 +97,7 @@ export default defineComponent({
 		};
 
 		calcOmit();
-		new ResizeObserver((entries, observer) => {
+		new ResizeObserver(() => {
 			calcOmit();
 		}).observe(this.$refs.content);
 	},
diff --git a/packages/client/src/components/ui/info.vue b/packages/client/src/components/ui/info.vue
index 262f31c62..c972f6690 100644
--- a/packages/client/src/components/ui/info.vue
+++ b/packages/client/src/components/ui/info.vue
@@ -8,7 +8,6 @@
 
 <script lang="ts">
 import { defineComponent } from 'vue';
-import * as os from '@/os';
 
 export default defineComponent({
 	props: {
diff --git a/packages/client/src/components/ui/modal-window.vue b/packages/client/src/components/ui/modal-window.vue
index b7faea736..ff72a9b50 100644
--- a/packages/client/src/components/ui/modal-window.vue
+++ b/packages/client/src/components/ui/modal-window.vue
@@ -20,7 +20,7 @@
 import { onMounted, onUnmounted } from 'vue';
 import MkModal from './modal.vue';
 
-const props = withDefaults(defineProps<{
+withDefaults(defineProps<{
 	withOkButton: boolean;
 	okButtonDisabled: boolean;
 	width: number;
@@ -63,7 +63,7 @@ const onKeydown = (evt) => {
 	}
 };
 
-const ro = new ResizeObserver((entries, observer) => {
+const ro = new ResizeObserver(() => {
 	bodyWidth = rootEl.offsetWidth;
 	bodyHeight = rootEl.offsetHeight - headerEl.offsetHeight;
 });
diff --git a/packages/client/src/components/ui/modal.vue b/packages/client/src/components/ui/modal.vue
index 2305a0279..4ef830445 100644
--- a/packages/client/src/components/ui/modal.vue
+++ b/packages/client/src/components/ui/modal.vue
@@ -217,9 +217,9 @@ const onOpened = () => {
 
 	// モーダルコンテンツにマウスボタンが押され、コンテンツ外でマウスボタンが離されたときにモーダルバックグラウンドクリックと判定させないためにマウスイベントを監視しフラグ管理する
 	const el = content!.children[0];
-	el.addEventListener('mousedown', ev => {
+	el.addEventListener('mousedown', () => {
 		contentClicking = true;
-		window.addEventListener('mouseup', ev => {
+		window.addEventListener('mouseup', () => {
 			// click イベントより先に mouseup イベントが発生するかもしれないのでちょっと待つ
 			window.setTimeout(() => {
 				contentClicking = false;
@@ -242,7 +242,7 @@ onMounted(() => {
 	}, { immediate: true });
 
 	nextTick(() => {
-		new ResizeObserver((entries, observer) => {
+		new ResizeObserver(() => {
 			align();
 		}).observe(content!);
 	});
diff --git a/packages/client/src/components/ui/pagination.vue b/packages/client/src/components/ui/pagination.vue
index 468d08a4f..c2545fa5d 100644
--- a/packages/client/src/components/ui/pagination.vue
+++ b/packages/client/src/components/ui/pagination.vue
@@ -32,7 +32,7 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, ComputedRef, isRef, markRaw, onActivated, onDeactivated, Ref, ref, watch } from 'vue';
+import { computed, ComputedRef, isRef, onActivated, onDeactivated, ref, watch } from 'vue';
 import * as misskey from 'misskey-js';
 import * as os from '@/os';
 import { onScrollTop, isTopVisible, getScrollPosition, getScrollContainer } from '@/scripts/scroll';
@@ -105,7 +105,7 @@ const init = async (): Promise<void> => {
 		offset.value = res.length;
 		error.value = false;
 		fetching.value = false;
-	}, err => {
+	}, () => {
 		error.value = true;
 		fetching.value = false;
 	});
@@ -142,7 +142,7 @@ const fetchMore = async (): Promise<void> => {
 		}
 		offset.value += res.length;
 		moreFetching.value = false;
-	}, err => {
+	}, () => {
 		moreFetching.value = false;
 	});
 };
@@ -172,7 +172,7 @@ const fetchMoreAhead = async (): Promise<void> => {
 		}
 		offset.value += res.length;
 		moreFetching.value = false;
-	}, err => {
+	}, () => {
 		moreFetching.value = false;
 	});
 };
diff --git a/packages/client/src/components/ui/super-menu.vue b/packages/client/src/components/ui/super-menu.vue
index bbba07d20..852c71bf7 100644
--- a/packages/client/src/components/ui/super-menu.vue
+++ b/packages/client/src/components/ui/super-menu.vue
@@ -24,7 +24,7 @@
 </template>
 
 <script lang="ts">
-import { defineComponent, ref, unref } from 'vue';
+import { defineComponent } from 'vue';
 
 export default defineComponent({
 	props: {
diff --git a/packages/client/src/components/url-preview.vue b/packages/client/src/components/url-preview.vue
index a6f5f733f..d33b154ea 100644
--- a/packages/client/src/components/url-preview.vue
+++ b/packages/client/src/components/url-preview.vue
@@ -33,7 +33,7 @@
 </template>
 
 <script lang="ts" setup>
-import { onMounted, onUnmounted } from 'vue';
+import { onUnmounted } from 'vue';
 import { url as local, lang } from '@/config';
 import { i18n } from '@/i18n';
 
diff --git a/packages/client/src/components/user-list.vue b/packages/client/src/components/user-list.vue
index fe30d371f..b9a3e4461 100644
--- a/packages/client/src/components/user-list.vue
+++ b/packages/client/src/components/user-list.vue
@@ -19,10 +19,9 @@
 import { ref } from 'vue';
 import MkUserInfo from '@/components/user-info.vue';
 import MkPagination, { Paging } from '@/components/ui/pagination.vue';
-import { userPage } from '@/filters/user';
 import { i18n } from '@/i18n';
 
-const props = defineProps<{
+defineProps<{
 	pagination: Paging;
 	noGap?: boolean;
 }>();
diff --git a/packages/client/src/components/user-select-dialog.vue b/packages/client/src/components/user-select-dialog.vue
index 9a0287dc7..696205232 100644
--- a/packages/client/src/components/user-select-dialog.vue
+++ b/packages/client/src/components/user-select-dialog.vue
@@ -52,7 +52,7 @@
 </template>
 
 <script lang="ts" setup>
-import { nextTick, onMounted } from 'vue';
+import { onMounted } from 'vue';
 import * as misskey from 'misskey-js';
 import MkInput from '@/components/form/input.vue';
 import FormSplit from '@/components/form/split.vue';
diff --git a/packages/client/src/components/users-tooltip.vue b/packages/client/src/components/users-tooltip.vue
index 2df19bcd3..718ca96ee 100644
--- a/packages/client/src/components/users-tooltip.vue
+++ b/packages/client/src/components/users-tooltip.vue
@@ -14,8 +14,8 @@
 import { } from 'vue';
 import MkTooltip from './ui/tooltip.vue';
 
-const props = defineProps<{
-	users: any[]; // TODO
+defineProps<{
+	users: Record<string, any>[]; // TODO
 	count: number;
 	targetElement: HTMLElement;
 }>();
diff --git a/packages/client/src/components/visibility.vue b/packages/client/src/components/visibility.vue
index b41c95033..aa59faca4 100644
--- a/packages/client/src/components/visibility.vue
+++ b/packages/client/src/components/visibility.vue
@@ -8,7 +8,6 @@
 </template>
 
 <script lang="ts" setup>
-import { ref } from 'vue';
 import XDetails from '@/components/users-tooltip.vue';
 import * as os from '@/os';
 import { useTooltip } from '@/scripts/use-tooltip';
diff --git a/packages/client/src/directives/adaptive-border.ts b/packages/client/src/directives/adaptive-border.ts
index 619c9f0b6..ea2eae60c 100644
--- a/packages/client/src/directives/adaptive-border.ts
+++ b/packages/client/src/directives/adaptive-border.ts
@@ -1,7 +1,7 @@
 import { Directive } from 'vue';
 
 export default {
-	mounted(src, binding, vn) {
+	mounted(src) {
 		const getBgColor = (el: HTMLElement) => {
 			const style = window.getComputedStyle(el);
 			if (style.backgroundColor && !['rgba(0, 0, 0, 0)', 'rgba(0,0,0,0)', 'transparent'].includes(style.backgroundColor)) {
diff --git a/packages/client/src/directives/anim.ts b/packages/client/src/directives/anim.ts
index 04e1c6a40..0838f05c6 100644
--- a/packages/client/src/directives/anim.ts
+++ b/packages/client/src/directives/anim.ts
@@ -1,7 +1,7 @@
 import { Directive } from 'vue';
 
 export default {
-	beforeMount(src, binding, vn) {
+	beforeMount(src) {
 		src.style.opacity = '0';
 		src.style.transform = 'scale(0.9)';
 		// ページネーションと相性が悪いので
@@ -9,7 +9,7 @@ export default {
 		src.classList.add('_zoom');
 	},
 
-	mounted(src, binding, vn) {
+	mounted(src) {
 		window.setTimeout(() => {
 			src.style.opacity = '1';
 			src.style.transform = 'none';
diff --git a/packages/client/src/directives/appear.ts b/packages/client/src/directives/appear.ts
index 7fa43fc34..efadd1538 100644
--- a/packages/client/src/directives/appear.ts
+++ b/packages/client/src/directives/appear.ts
@@ -1,7 +1,7 @@
 import { Directive } from 'vue';
 
 export default {
-	mounted(src, binding, vn) {
+	mounted(src, binding) {
 		const fn = binding.value;
 		if (fn == null) return;
 
@@ -16,7 +16,7 @@ export default {
 		src._observer_ = observer;
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		if (src._observer_) src._observer_.disconnect();
 	},
 } as Directive;
diff --git a/packages/client/src/directives/get-size.ts b/packages/client/src/directives/get-size.ts
index ff3bdd78a..d36699e1a 100644
--- a/packages/client/src/directives/get-size.ts
+++ b/packages/client/src/directives/get-size.ts
@@ -33,8 +33,8 @@ function calc(src: Element) {
 }
 
 export default {
-	mounted(src, binding, vn) {
-		const resize = new ResizeObserver((entries, observer) => {
+	mounted(src) {
+		const resize = new ResizeObserver(() => {
 			calc(src);
 		});
 		resize.observe(src);
@@ -43,7 +43,7 @@ export default {
 		calc(src);
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		binding.value(0, 0);
 		const info = mountings.get(src);
 		if (!info) return;
diff --git a/packages/client/src/directives/panel.ts b/packages/client/src/directives/panel.ts
index d31dc41ed..7d87b30b0 100644
--- a/packages/client/src/directives/panel.ts
+++ b/packages/client/src/directives/panel.ts
@@ -1,7 +1,7 @@
 import { Directive } from 'vue';
 
 export default {
-	mounted(src, binding, vn) {
+	mounted(src) {
 		const getBgColor = (el: HTMLElement) => {
 			const style = window.getComputedStyle(el);
 			if (style.backgroundColor && !['rgba(0, 0, 0, 0)', 'rgba(0,0,0,0)', 'transparent'].includes(style.backgroundColor)) {
diff --git a/packages/client/src/directives/ripple.ts b/packages/client/src/directives/ripple.ts
index 4aae7d57d..bad00f5c2 100644
--- a/packages/client/src/directives/ripple.ts
+++ b/packages/client/src/directives/ripple.ts
@@ -2,7 +2,7 @@ import Ripple from '@/components/ripple.vue';
 import { popup } from '@/os';
 
 export default {
-	mounted(el, binding, vn) {
+	mounted(el, binding) {
 		// 明示的に false であればバインドしない
 		if (binding.value === false) return;
 
diff --git a/packages/client/src/directives/size.ts b/packages/client/src/directives/size.ts
index c8f446e3a..3a0f89133 100644
--- a/packages/client/src/directives/size.ts
+++ b/packages/client/src/directives/size.ts
@@ -77,8 +77,8 @@ function calc(el: Element) {
 }
 
 export default {
-	mounted(src, binding, vn) {
-		const resize = new ResizeObserver((entries, observer) => {
+	mounted(src, binding) {
+		const resize = new ResizeObserver(() => {
 			calc(src);
 		});
 
@@ -92,12 +92,12 @@ export default {
 		resize.observe(src);
 	},
 
-	updated(src, binding, vn) {
+	updated(src, binding) {
 		mountings.set(src, Object.assign({}, mountings.get(src), { value: binding.value }));
 		calc(src);
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		const info = mountings.get(src);
 		if (!info) return;
 		info.resize.disconnect();
diff --git a/packages/client/src/directives/sticky-container.ts b/packages/client/src/directives/sticky-container.ts
index 3cf813054..c1e3a90f3 100644
--- a/packages/client/src/directives/sticky-container.ts
+++ b/packages/client/src/directives/sticky-container.ts
@@ -1,9 +1,7 @@
 import { Directive } from 'vue';
 
 export default {
-	mounted(src, binding, vn) {
-		//const query = binding.value;
-
+	mounted(src) {
 		const header = src.children[0];
 		const body = src.children[1];
 		const currentStickyTop = getComputedStyle(src).getPropertyValue('--stickyTop') || '0px';
diff --git a/packages/client/src/directives/tooltip.ts b/packages/client/src/directives/tooltip.ts
index 588bbca3a..d777f1bd4 100644
--- a/packages/client/src/directives/tooltip.ts
+++ b/packages/client/src/directives/tooltip.ts
@@ -10,7 +10,7 @@ const end = isTouchUsing ? 'touchend' : 'mouseleave';
 const delay = 100;
 
 export default {
-	mounted(el: HTMLElement, binding, vn) {
+	mounted(el: HTMLElement, binding) {
 		const self = (el as any)._tooltipDirective_ = {} as any;
 
 		self.text = binding.value as string;
@@ -84,7 +84,7 @@ export default {
 		self.text = binding.value as string;
 	},
 
-	unmounted(el, binding, vn) {
+	unmounted(el) {
 		const self = el._tooltipDirective_;
 		window.clearInterval(self.checkTimer);
 	},
diff --git a/packages/client/src/directives/user-preview.ts b/packages/client/src/directives/user-preview.ts
index 26f262cde..707603af2 100644
--- a/packages/client/src/directives/user-preview.ts
+++ b/packages/client/src/directives/user-preview.ts
@@ -99,7 +99,7 @@ export class UserPreview {
 }
 
 export default {
-	mounted(el: HTMLElement, binding, vn) {
+	mounted(el: HTMLElement, binding) {
 		if (binding.value == null) return;
 
 		// TODO: 新たにプロパティを作るのをやめMapを使う
@@ -109,7 +109,7 @@ export default {
 		self.preview = new UserPreview(el, binding.value);
 	},
 
-	unmounted(el, binding, vn) {
+	unmounted(el, binding) {
 		if (binding.value == null) return;
 
 		const self = el._userPreviewDirective_;
diff --git a/packages/client/src/init.ts b/packages/client/src/init.ts
index d3db31853..3e5b8f37f 100644
--- a/packages/client/src/init.ts
+++ b/packages/client/src/init.ts
@@ -20,7 +20,7 @@ import JSON5 from 'json5';
 import widgets from '@/widgets';
 import directives from '@/directives';
 import components from '@/components';
-import { version, ui, lang, host } from '@/config';
+import { version, ui, lang } from '@/config';
 import { applyTheme } from '@/scripts/theme';
 import { isDeviceDarkmode } from '@/scripts/is-device-darkmode';
 import { i18n } from '@/i18n';
diff --git a/packages/client/src/menu.ts b/packages/client/src/menu.ts
index fa5d26b3a..7a5df5bf8 100644
--- a/packages/client/src/menu.ts
+++ b/packages/client/src/menu.ts
@@ -194,7 +194,7 @@ export const menuDef = reactive({
 	reload: {
 		title: 'reload',
 		icon: 'fas fa-refresh',
-		action: (ev) => {
+		action: () => {
 			location.reload();
 		},
 	},
diff --git a/packages/client/src/nirax.ts b/packages/client/src/nirax.ts
index 88594dfa7..8dbe7eb12 100644
--- a/packages/client/src/nirax.ts
+++ b/packages/client/src/nirax.ts
@@ -1,7 +1,7 @@
 // NIRAX --- A lightweight router
 
 import { EventEmitter } from 'eventemitter3';
-import { Ref, Component, ref, shallowRef, ShallowRef } from 'vue';
+import { Component, shallowRef, ShallowRef } from 'vue';
 import { pleaseLogin } from '@/scripts/please-login';
 import { safeURIDecode } from '@/scripts/safe-uri-decode';
 
@@ -165,7 +165,6 @@ export class Router extends EventEmitter<{
 
 	private navigate(path: string, key: string | null | undefined, initial = false) {
 		const beforePath = this.currentPath;
-		const beforeRoute = this.currentRoute.value;
 		this.currentPath = path;
 
 		const res = this.resolve(this.currentPath);
diff --git a/packages/client/src/os.ts b/packages/client/src/os.ts
index 51df43de0..0a90ac800 100644
--- a/packages/client/src/os.ts
+++ b/packages/client/src/os.ts
@@ -207,11 +207,9 @@ export function alert(props: {
 	title?: string | null;
 	text?: string | null;
 }): Promise<void> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), props, {
-			done: result => {
-				resolve();
-			},
+			done: resolve,
 		}, 'closed');
 	});
 }
@@ -221,7 +219,7 @@ export function confirm(props: {
 	title?: string | null;
 	text?: string | null;
 }): Promise<{ canceled: boolean }> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), {
 			...props,
 			showCancelButton: true,
@@ -242,7 +240,7 @@ export function inputText(props: {
 }): Promise<{ canceled: true; result: undefined; } | {
 	canceled: false; result: string;
 }> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), {
 			title: props.title,
 			text: props.text,
@@ -267,7 +265,7 @@ export function inputNumber(props: {
 }): Promise<{ canceled: true; result: undefined; } | {
 	canceled: false; result: number;
 }> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), {
 			title: props.title,
 			text: props.text,
@@ -292,7 +290,7 @@ export function inputDate(props: {
 }): Promise<{ canceled: true; result: undefined; } | {
 	canceled: false; result: Date;
 }> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), {
 			title: props.title,
 			text: props.text,
@@ -329,7 +327,7 @@ export function select<C = any>(props: {
 })): Promise<{ canceled: true; result: undefined; } | {
 	canceled: false; result: C;
 }> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/dialog.vue')), {
 			title: props.title,
 			text: props.text,
@@ -347,7 +345,7 @@ export function select<C = any>(props: {
 }
 
 export function success() {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		const showing = ref(true);
 		window.setTimeout(() => {
 			showing.value = false;
@@ -362,7 +360,7 @@ export function success() {
 }
 
 export function waiting() {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		const showing = ref(true);
 		popup(defineAsyncComponent(() => import('@/components/waiting-dialog.vue')), {
 			success: false,
@@ -374,7 +372,7 @@ export function waiting() {
 }
 
 export function form(title, form) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/form-dialog.vue')), { title, form }, {
 			done: result => {
 				resolve(result);
@@ -384,7 +382,7 @@ export function form(title, form) {
 }
 
 export async function selectUser() {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/user-select-dialog.vue')), {}, {
 			ok: user => {
 				resolve(user);
@@ -394,7 +392,7 @@ export async function selectUser() {
 }
 
 export async function selectDriveFile(multiple: boolean) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/drive-select-dialog.vue')), {
 			type: 'file',
 			multiple,
@@ -409,7 +407,7 @@ export async function selectDriveFile(multiple: boolean) {
 }
 
 export async function selectDriveFolder(multiple: boolean) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/drive-select-dialog.vue')), {
 			type: 'folder',
 			multiple,
@@ -424,7 +422,7 @@ export async function selectDriveFolder(multiple: boolean) {
 }
 
 export async function pickEmoji(src: HTMLElement | null, opts) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/emoji-picker-dialog.vue')), {
 			src,
 			...opts,
@@ -439,7 +437,7 @@ export async function pickEmoji(src: HTMLElement | null, opts) {
 export async function cropImage(image: Misskey.entities.DriveFile, options: {
 	aspectRatio: number;
 }): Promise<Misskey.entities.DriveFile> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		popup(defineAsyncComponent(() => import('@/components/cropper-dialog.vue')), {
 			file: image,
 			aspectRatio: options.aspectRatio,
@@ -510,7 +508,7 @@ export function popupMenu(items: MenuItem[] | Ref<MenuItem[]>, src?: HTMLElement
 	width?: number;
 	viaKeyboard?: boolean;
 }) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		let dispose;
 		popup(defineAsyncComponent(() => import('@/components/ui/popup-menu.vue')), {
 			items,
@@ -531,7 +529,7 @@ export function popupMenu(items: MenuItem[] | Ref<MenuItem[]>, src?: HTMLElement
 
 export function contextMenu(items: MenuItem[] | Ref<MenuItem[]>, ev: MouseEvent) {
 	ev.preventDefault();
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		let dispose;
 		popup(defineAsyncComponent(() => import('@/components/ui/context-menu.vue')), {
 			items,
@@ -548,7 +546,7 @@ export function contextMenu(items: MenuItem[] | Ref<MenuItem[]>, ev: MouseEvent)
 }
 
 export function post(props: Record<string, any> = {}) {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		// NOTE: MkPostFormDialogをdynamic importするとiOSでテキストエリアに自動フォーカスできない
 		// NOTE: ただ、dynamic importしない場合、MkPostFormDialogインスタンスが使いまわされ、
 		//       Vueが渡されたコンポーネントに内部的に__propsというプロパティを生やす影響で、
@@ -570,7 +568,7 @@ export const deckGlobalEvents = new EventEmitter();
 
 /*
 export function checkExistence(fileData: ArrayBuffer): Promise<any> {
-	return new Promise((resolve, reject) => {
+	return new Promise((resolve) => {
 		const data = new FormData();
 		data.append('md5', getMD5(fileData));
 
diff --git a/packages/client/src/pages/_error_.vue b/packages/client/src/pages/_error_.vue
index 6ac1f4297..8a4111e80 100644
--- a/packages/client/src/pages/_error_.vue
+++ b/packages/client/src/pages/_error_.vue
@@ -27,9 +27,10 @@ import { unisonReload } from '@/scripts/unison-reload';
 import { i18n } from '@/i18n';
 import { definePageMetadata } from '@/scripts/page-metadata';
 
-const props = withDefaults(defineProps<{
-	error?: Error;
+withDefaults(defineProps<{
+	error?: Error | undefined;
 }>(), {
+	error: undefined,
 });
 
 let loaded = $ref(false);
@@ -52,10 +53,6 @@ function reload() {
 	unisonReload();
 }
 
-const headerActions = $computed(() => []);
-
-const headerTabs = $computed(() => []);
-
 definePageMetadata({
 	title: i18n.ts.error,
 	icon: 'fas fa-exclamation-triangle',
diff --git a/packages/client/src/pages/about.vue b/packages/client/src/pages/about.vue
index 492fe1d71..fcb82ee34 100644
--- a/packages/client/src/pages/about.vue
+++ b/packages/client/src/pages/about.vue
@@ -80,8 +80,8 @@
 </template>
 
 <script lang="ts" setup>
-import { ref, computed } from 'vue';
-import { version, instanceName , host } from '@/config';
+import { computed } from 'vue';
+import { version, host } from '@/config';
 import FormLink from '@/components/form/link.vue';
 import FormSection from '@/components/form/section.vue';
 import FormSuspense from '@/components/form/suspense.vue';
diff --git a/packages/client/src/pages/admin-file.vue b/packages/client/src/pages/admin-file.vue
index 7bfbed35f..0b2808360 100644
--- a/packages/client/src/pages/admin-file.vue
+++ b/packages/client/src/pages/admin-file.vue
@@ -54,13 +54,11 @@ import MkSwitch from '@/components/form/switch.vue';
 import MkObjectView from '@/components/object-view.vue';
 import MkDriveFileThumbnail from '@/components/drive-file-thumbnail.vue';
 import MkKeyValue from '@/components/key-value.vue';
-import FormLink from '@/components/form/link.vue';
 import MkUserCardMini from '@/components/user-card-mini.vue';
 import bytes from '@/filters/bytes';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { definePageMetadata } from '@/scripts/page-metadata';
-import { acct } from '@/filters/user';
 
 let tab = $ref('overview');
 let file: any = $ref(null);
diff --git a/packages/client/src/pages/admin/_header_.vue b/packages/client/src/pages/admin/_header_.vue
index aea2663c3..b61787d1e 100644
--- a/packages/client/src/pages/admin/_header_.vue
+++ b/packages/client/src/pages/admin/_header_.vue
@@ -9,7 +9,7 @@
 			</div>
 		</div>
 		<div class="tabs">
-			<button v-for="tab in tabs" :ref="(el) => tabRefs[tab.key] = el" v-tooltip="tab.title" class="tab _button" :class="{ active: tab.key != null && tab.key === props.tab }" @mousedown="(ev) => onTabMousedown(tab, ev)" @click="(ev) => onTabClick(tab, ev)">
+			<button v-for="tab in tabs" :ref="(el) => tabRefs[tab.key] = el" v-tooltip="tab.title" class="tab _button" :class="{ active: tab.key != null && tab.key === props.tab }" @mousedown="() => onTabMousedown(tab)" @click="(ev) => onTabClick(tab, ev)">
 				<i v-if="tab.icon" class="icon" :class="tab.icon"></i>
 				<span v-if="!tab.iconOnly" class="title">{{ tab.title }}</span>
 			</button>
@@ -28,13 +28,11 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, onMounted, onUnmounted, ref, inject, watch, nextTick } from 'vue';
+import { computed, onMounted, onUnmounted, ref, watch, nextTick } from 'vue';
 import tinycolor from 'tinycolor2';
 import { popupMenu } from '@/os';
-import { url } from '@/config';
 import { scrollToTop } from '@/scripts/scroll';
 import MkButton from '@/components/ui/button.vue';
-import { i18n } from '@/i18n';
 import { globalEvents } from '@/events';
 import { injectPageMetadata } from '@/scripts/page-metadata';
 
@@ -68,7 +66,6 @@ const el = ref<HTMLElement>(null);
 const tabRefs = {};
 const tabHighlightEl = $ref<HTMLElement | null>(null);
 const bg = ref(null);
-const height = ref(0);
 const hasTabs = computed(() => {
 	return props.tabs && props.tabs.length > 0;
 });
@@ -96,7 +93,7 @@ const onClick = () => {
 	scrollToTop(el.value, { behavior: 'smooth' });
 };
 
-function onTabMousedown(tab: Tab, ev: MouseEvent): void {
+function onTabMousedown(tab: Tab): void {
 	// ユーザビリティの観点からmousedown時にはonClickは呼ばない
 	if (tab.key) {
 		emit('update:tab', tab.key);
diff --git a/packages/client/src/pages/admin/abuses.vue b/packages/client/src/pages/admin/abuses.vue
index 9c718ab9e..e0ff933c1 100644
--- a/packages/client/src/pages/admin/abuses.vue
+++ b/packages/client/src/pages/admin/abuses.vue
@@ -25,16 +25,6 @@
 							<option value="remote">{{ i18n.ts.remote }}</option>
 						</MkSelect>
 					</div>
-					<!-- TODO
-			<div class="inputs" style="display: flex; padding-top: 1.2em;">
-				<MkInput v-model="searchUsername" style="margin: 0; flex: 1;" type="text" :spellcheck="false">
-					<span>{{ i18n.ts.username }}</span>
-				</MkInput>
-				<MkInput v-model="searchHost" style="margin: 0; flex: 1;" type="text" :spellcheck="false" :disabled="pagination.params().origin === 'local'">
-					<span>{{ i18n.ts.host }}</span>
-				</MkInput>
-			</div>
-			-->
 
 					<MkPagination v-slot="{items}" ref="reports" :pagination="pagination" style="margin-top: var(--margin);">
 						<XAbuseReport v-for="report in items" :key="report.id" :report="report" @resolved="resolved"/>
@@ -50,7 +40,6 @@
 import { computed } from 'vue';
 
 import XHeader from './_header_.vue';
-import MkInput from '@/components/form/input.vue';
 import MkSelect from '@/components/form/select.vue';
 import MkPagination from '@/components/ui/pagination.vue';
 import XAbuseReport from '@/components/abuse-report.vue';
@@ -63,8 +52,6 @@ let reports = $ref<InstanceType<typeof MkPagination>>();
 let state = $ref('unresolved');
 let reporterOrigin = $ref('combined');
 let targetUserOrigin = $ref('combined');
-let searchUsername = $ref('');
-let searchHost = $ref('');
 
 const pagination = {
 	endpoint: 'admin/abuse-user-reports' as const,
diff --git a/packages/client/src/pages/admin/emoji-edit-dialog.vue b/packages/client/src/pages/admin/emoji-edit-dialog.vue
index af91044e7..d746a4514 100644
--- a/packages/client/src/pages/admin/emoji-edit-dialog.vue
+++ b/packages/client/src/pages/admin/emoji-edit-dialog.vue
@@ -34,7 +34,6 @@ import XModalWindow from '@/components/ui/modal-window.vue';
 import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import * as os from '@/os';
-import { unique } from '@/scripts/array';
 import { i18n } from '@/i18n';
 import { emojiCategories } from '@/instance';
 
diff --git a/packages/client/src/pages/admin/emojis.vue b/packages/client/src/pages/admin/emojis.vue
index 359c1637c..f88dabdf9 100644
--- a/packages/client/src/pages/admin/emojis.vue
+++ b/packages/client/src/pages/admin/emojis.vue
@@ -68,12 +68,11 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, defineAsyncComponent, defineComponent, ref, toRef } from 'vue';
+import { computed, defineAsyncComponent, ref } from 'vue';
 import XHeader from './_header_.vue';
 import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import MkPagination from '@/components/ui/pagination.vue';
-import MkTab from '@/components/tab.vue';
 import MkSwitch from '@/components/form/switch.vue';
 import FormSplit from '@/components/form/split.vue';
 import { selectFile, selectFiles } from '@/scripts/select-file';
diff --git a/packages/client/src/pages/admin/files.vue b/packages/client/src/pages/admin/files.vue
index 7afa2de5b..c950557d9 100644
--- a/packages/client/src/pages/admin/files.vue
+++ b/packages/client/src/pages/admin/files.vue
@@ -33,14 +33,11 @@
 </template>
 
 <script lang="ts" setup>
-import { computed, defineAsyncComponent } from 'vue';
-import * as Acct from 'misskey-js/built/acct';
+import { computed } from 'vue';
 import XHeader from './_header_.vue';
-import MkButton from '@/components/ui/button.vue';
 import MkInput from '@/components/form/input.vue';
 import MkSelect from '@/components/form/select.vue';
 import MkFileListForAdmin from '@/components/file-list-for-admin.vue';
-import bytes from '@/filters/bytes';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { definePageMetadata } from '@/scripts/page-metadata';
@@ -105,8 +102,6 @@ const headerActions = $computed(() => [{
 	handler: clear,
 }]);
 
-const headerTabs = $computed(() => []);
-
 definePageMetadata(computed(() => ({
 	title: i18n.ts.files,
 	icon: 'fas fa-cloud',
diff --git a/packages/client/src/pages/admin/index.vue b/packages/client/src/pages/admin/index.vue
index 025565e64..cec58f800 100644
--- a/packages/client/src/pages/admin/index.vue
+++ b/packages/client/src/pages/admin/index.vue
@@ -32,7 +32,7 @@ import { instance } from '@/instance';
 import * as os from '@/os';
 import { lookupUser } from '@/scripts/lookup-user';
 import { useRouter } from '@/router';
-import { definePageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { definePageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 
 const isEmpty = (x: string | null) => x == null || x === '';
 
@@ -294,10 +294,6 @@ const lookup = (ev) => {
 	}], ev.currentTarget ?? ev.target);
 };
 
-const headerActions = $computed(() => []);
-
-const headerTabs = $computed(() => []);
-
 definePageMetadata(INFO);
 
 defineExpose({
diff --git a/packages/client/src/plugin.ts b/packages/client/src/plugin.ts
index 871d3bfe9..422b6339c 100644
--- a/packages/client/src/plugin.ts
+++ b/packages/client/src/plugin.ts
@@ -18,7 +18,7 @@ export function install(plugin) {
 			return new Promise(ok => {
 				inputText({
 					title: q,
-				}).then(({ canceled, result: a }) => {
+				}).then(({ result: a }) => {
 					ok(a);
 				});
 			});
@@ -26,8 +26,7 @@ export function install(plugin) {
 		out: (value) => {
 			console.log(value);
 		},
-		log: (type, params) => {
-		},
+		log: (type, params) => {},
 	});
 
 	initPlugin({ plugin, aiscript });
diff --git a/packages/client/src/router.ts b/packages/client/src/router.ts
index 5300d6247..a2320b582 100644
--- a/packages/client/src/router.ts
+++ b/packages/client/src/router.ts
@@ -3,7 +3,6 @@ import { Router } from '@/nirax';
 import { $i, iAmModerator } from '@/account';
 import MkLoading from '@/pages/_loading_.vue';
 import MkError from '@/pages/_error_.vue';
-import { ui } from '@/config';
 
 const page = (loader: AsyncComponentLoader<any>) => defineAsyncComponent({
 	loader,
diff --git a/packages/client/src/scripts/get-note-menu.ts b/packages/client/src/scripts/get-note-menu.ts
index a638c3893..b2375f0b8 100644
--- a/packages/client/src/scripts/get-note-menu.ts
+++ b/packages/client/src/scripts/get-note-menu.ts
@@ -1,6 +1,5 @@
-import { defineAsyncComponent, Ref, inject } from 'vue';
+import { defineAsyncComponent, Ref } from 'vue';
 import * as misskey from 'misskey-js';
-import { pleaseLogin } from './please-login';
 import { $i } from '@/account';
 import { i18n } from '@/i18n';
 import { instance } from '@/instance';
diff --git a/packages/client/src/ui/classic.vue b/packages/client/src/ui/classic.vue
index 70db7ed12..9752b30b3 100644
--- a/packages/client/src/ui/classic.vue
+++ b/packages/client/src/ui/classic.vue
@@ -49,7 +49,7 @@ import { StickySidebar } from '@/scripts/sticky-sidebar';
 import * as os from '@/os';
 import { menuDef } from '@/menu';
 import { mainRouter } from '@/router';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { defaultStore } from '@/store';
 import { i18n } from '@/i18n';
 const XHeaderMenu = defineAsyncComponent(() => import('./classic.header.vue'));
diff --git a/packages/client/src/ui/deck/main-column.vue b/packages/client/src/ui/deck/main-column.vue
index 9a5fd43af..ee8c799a4 100644
--- a/packages/client/src/ui/deck/main-column.vue
+++ b/packages/client/src/ui/deck/main-column.vue
@@ -18,7 +18,7 @@ import { deckStore, Column } from '@/ui/deck/deck-store';
 import * as os from '@/os';
 import { i18n } from '@/i18n';
 import { mainRouter } from '@/router';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 
 defineProps<{
 	column: Column;
diff --git a/packages/client/src/ui/universal.vue b/packages/client/src/ui/universal.vue
index 3614f7de5..8abcecd62 100644
--- a/packages/client/src/ui/universal.vue
+++ b/packages/client/src/ui/universal.vue
@@ -68,7 +68,7 @@ import { i18n } from '@/i18n';
 import { $i } from '@/account';
 import { Router } from '@/nirax';
 import { mainRouter } from '@/router';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 const XWidgets = defineAsyncComponent(() => import('./universal.widgets.vue'));
 const XSidebar = defineAsyncComponent(() => import('@/ui/_common_/sidebar.vue'));
 
diff --git a/packages/client/src/ui/visitor/b.vue b/packages/client/src/ui/visitor/b.vue
index 144a83ccb..aaaa19568 100644
--- a/packages/client/src/ui/visitor/b.vue
+++ b/packages/client/src/ui/visitor/b.vue
@@ -58,7 +58,7 @@ import XSignupDialog from '@/components/signup-dialog.vue';
 import MkButton from '@/components/ui/button.vue';
 import { ColdDeviceStorage, defaultStore } from '@/store';
 import { mainRouter } from '@/router';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { i18n } from '@/i18n';
 
 const DESKTOP_THRESHOLD = 1100;
diff --git a/packages/client/src/ui/zen.vue b/packages/client/src/ui/zen.vue
index c915f8242..e20fd4065 100644
--- a/packages/client/src/ui/zen.vue
+++ b/packages/client/src/ui/zen.vue
@@ -10,7 +10,7 @@
 import { provide, ComputedRef } from 'vue';
 import XCommon from './_common_/common.vue';
 import { mainRouter } from '@/router';
-import { PageMetadata, provideMetadataReceiver, setPageMetadata } from '@/scripts/page-metadata';
+import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata';
 import { instanceName } from '@/config';
 
 let pageMetadata = $ref<null | ComputedRef<PageMetadata>>();
diff --git a/packages/shared/.eslintrc.js b/packages/shared/.eslintrc.js
index 76b8070f3..17e7259b5 100644
--- a/packages/shared/.eslintrc.js
+++ b/packages/shared/.eslintrc.js
@@ -68,7 +68,7 @@ module.exports = {
 		'@typescript-eslint/no-inferrable-types': ['warn'],
 		'@typescript-eslint/no-empty-function': ['off'],
 		'@typescript-eslint/no-non-null-assertion': ['warn'],
-		'@typescript-eslint/explicit-function-return-type': ['warn'],
+		'@typescript-eslint/explicit-function-return-type': ['warn', { allowExpressions: true }],
 		'@typescript-eslint/no-misused-promises': ['error', {
 			'checksVoidReturn': false,
 		}],