diff --git a/locales/en-US.yml b/locales/en-US.yml
index 219ff42a1..08eb2a62f 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -1118,6 +1118,7 @@ enableIdenticonGeneration: "Enable Identicon generation"
 showPopup: "Notify users with popup"
 showWithSparkles: "Show with sparkles"
 youHaveUnreadAnnouncements: "You have unread announcements"
+donationLink: "Link to donation page"
 
 _sensitiveMediaDetection:
   description: "Reduces the effort of server moderation through automatically recognizing
@@ -1216,6 +1217,10 @@ _aboutMisskey:
   source: "Source code"
   translation: "Translate Calckey"
   donate: "Donate to Calckey"
+  donateTitle: "Enjoying Calckey?"
+  pleaseDonateToCalckey: "Please consider donating to Calckey to support its development."
+  pleaseDonateToHost: "Please also consider donating to your honme server, {host}, to help support its operation costs."
+  donateHost: "Donate to {host}"
   morePatrons: "We also appreciate the support of many other helpers not listed here.
     Thank you! 🥰"
   patrons: "Calckey patrons"
diff --git a/packages/backend/migration/1689136347561-donation-link.js b/packages/backend/migration/1689136347561-donation-link.js
new file mode 100644
index 000000000..dbe0ed7c8
--- /dev/null
+++ b/packages/backend/migration/1689136347561-donation-link.js
@@ -0,0 +1,15 @@
+export class DonationLink1689136347561 {
+	name = "DonationLink1689136347561";
+
+	async up(queryRunner) {
+		await queryRunner.query(
+			`ALTER TABLE "meta" ADD "donationLink" character varying(256)`,
+		);
+	}
+
+	async down(queryRunner) {
+		await queryRunner.query(
+			`ALTER TABLE "meta" DROP COLUMN "DonationLink1689136347561"`,
+		);
+	}
+}
diff --git a/packages/backend/src/models/entities/meta.ts b/packages/backend/src/models/entities/meta.ts
index 200ef5055..d3de7ba53 100644
--- a/packages/backend/src/models/entities/meta.ts
+++ b/packages/backend/src/models/entities/meta.ts
@@ -556,4 +556,10 @@ export class Meta {
 		default: true,
 	})
 	public enableIdenticonGeneration: boolean;
+
+	@Column("varchar", {
+		length: 256,
+		nullable: true,
+	})
+	public donationLink: string | null;
 }
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index 50317d4a8..6c3bb5041 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -491,6 +491,11 @@ export const meta = {
 				optional: false,
 				nullable: false,
 			},
+			donationLink: {
+				type: "string",
+				optional: true,
+				nullable: true,
+			}
 		},
 	},
 } as const;
@@ -604,5 +609,6 @@ export default define(meta, paramDef, async (ps, me) => {
 		experimentalFeatures: instance.experimentalFeatures,
 		enableServerMachineStats: instance.enableServerMachineStats,
 		enableIdenticonGeneration: instance.enableIdenticonGeneration,
+		donationLink: instance.donationLink,
 	};
 });
diff --git a/packages/client/src/components/MkDonation.vue b/packages/client/src/components/MkDonation.vue
new file mode 100644
index 000000000..beaeef2d2
--- /dev/null
+++ b/packages/client/src/components/MkDonation.vue
@@ -0,0 +1,131 @@
+<template>
+	<div class="_panel _shadow" :class="$style.root">
+		<div :class="$style.icon">
+			<i class="ph-hand-heart ph-bold ph-6x" />
+		</div>
+		<div :class="$style.main">
+			<div :class="$style.title">
+				{{ i18n.ts._aboutMisskey.donateTitle }}
+			</div>
+			<div :class="$style.text">
+				{{ i18n.ts._aboutMisskey.pleaseDonateToCalckey }}
+				<p v-if="instance.donationLink">
+					{{
+						i18n.t("_aboutMisskey.pleaseDonateToHost", {
+							host: hostname,
+						})
+					}}
+				</p>
+			</div>
+			<div class="_flexList">
+				<MkButton primary @click="openCalckeyDonation">{{
+					i18n.ts._aboutMisskey.donate
+				}}</MkButton>
+				<MkButton v-if="instance.donationLink" primary @click="openExternalDonation">{{
+					i18n.t("_aboutMisskey.donateHost", {
+						host: hostname,
+					})
+				}}</MkButton>
+			</div>
+			<div class="_flexList">
+				<MkButton @click="close">{{ i18n.ts.remindMeLater }}</MkButton>
+				<MkButton @click="neverShow">{{ i18n.ts.neverShow }}</MkButton>
+			</div>
+		</div>
+		<button class="_button" :class="$style.close" @click="close">
+			<i class="ph-x ph-bold ph-lg"></i>
+		</button>
+	</div>
+</template>
+
+<script lang="ts" setup>
+import MkButton from "@/components/MkButton.vue";
+import { host } from "@/config";
+import { i18n } from "@/i18n";
+import * as os from "@/os";
+import { instance } from "@/instance";
+
+const emit = defineEmits<{
+	(ev: "closed"): void;
+}>();
+
+const hostname = instance.name?.length <= 20 ? instance.name : host;
+
+const zIndex = os.claimZIndex("low");
+
+function close() {
+	localStorage.setItem("latestDonationInfoShownAt", Date.now().toString());
+	emit("closed");
+}
+
+function neverShow() {
+	localStorage.setItem("neverShowDonationInfo", "true");
+	close();
+}
+
+function openCalckeyDonation() {
+	window.open("https://opencollective.com/calckey", "_blank");
+}
+
+function openExternalDonation() {
+	let link = instance.donationLink;
+	if (!/^https?:\/\//i.test(link)) {
+    link = `http://${link}`;
+	}
+	window.open(link, "_blank");
+}
+</script>
+
+<style lang="scss" module>
+.root {
+	position: fixed;
+	z-index: v-bind(zIndex);
+	bottom: var(--margin);
+	left: 0;
+	right: 0;
+	margin: auto;
+	box-sizing: border-box;
+	width: calc(100% - (var(--margin) * 2));
+	max-width: 500px;
+	display: flex;
+}
+
+.icon {
+	text-align: center;
+	padding-top: 25px;
+	width: 100px;
+	color: var(--accent);
+}
+
+@media (max-width: 500px) {
+	.icon {
+		width: 80px;
+	}
+}
+
+@media (max-width: 450px) {
+	.icon {
+		width: 70px;
+	}
+}
+
+.main {
+	padding: 25px 25px 25px 0;
+	flex: 1;
+}
+
+.close {
+	position: absolute;
+	top: 8px;
+	right: 8px;
+	padding: 8px;
+}
+
+.title {
+	font-weight: bold;
+}
+
+.text {
+	margin: 0.7em 0 1em 0;
+}
+</style>
diff --git a/packages/client/src/init.ts b/packages/client/src/init.ts
index 11b9a2eda..66be0430d 100644
--- a/packages/client/src/init.ts
+++ b/packages/client/src/init.ts
@@ -450,6 +450,29 @@ function checkForSplash() {
 		}
 		localStorage.setItem("lastUsed", Date.now().toString());
 
+		const latestDonationInfoShownAt = localStorage.getItem(
+			"latestDonationInfoShownAt",
+		);
+		const neverShowDonationInfo = localStorage.getItem("neverShowDonationInfo");
+		if (
+			neverShowDonationInfo !== "true" &&
+			new Date($i.createdAt).getTime() < Date.now() - 1000 * 60 * 60 * 24 * 3 &&
+			!location.pathname.startsWith("/miauth")
+		) {
+			if (
+				latestDonationInfoShownAt == null ||
+				new Date(latestDonationInfoShownAt).getTime() <
+					Date.now() - 1000 * 60 * 60 * 24 * 30
+			) {
+				popup(
+					defineAsyncComponent(() => import("@/components/MkDonation.vue")),
+					{},
+					{},
+					"closed",
+				);
+			}
+		}
+
 		if ("Notification" in window) {
 			// 許可を得ていなかったらリクエスト
 			if (Notification.permission === "default") {
diff --git a/packages/client/src/pages/admin/settings.vue b/packages/client/src/pages/admin/settings.vue
index b03a98ae5..4920a82fa 100644
--- a/packages/client/src/pages/admin/settings.vue
+++ b/packages/client/src/pages/admin/settings.vue
@@ -53,6 +53,20 @@
 									i18n.ts.maintainerEmail
 								}}</template>
 							</FormInput>
+
+							<FormInput
+								v-model="donationLink"
+								class="_formBlock"
+							>
+								<template #prefix
+									><i
+										class="ph-hand-heart ph-bold ph-lg"
+									></i
+								></template>
+								<template #label>{{
+									i18n.ts.donationLink
+								}}</template>
+							</FormInput>
 						</FormSplit>
 
 						<FormTextarea v-model="pinnedUsers" class="_formBlock">
@@ -435,6 +449,7 @@ let description: string | null = $ref(null);
 let tosUrl: string | null = $ref(null);
 let maintainerName: string | null = $ref(null);
 let maintainerEmail: string | null = $ref(null);
+let donationLink: string | null = $ref(null);
 let iconUrl: string | null = $ref(null);
 let bannerUrl: string | null = $ref(null);
 let logoImageUrl: string | null = $ref(null);
@@ -481,6 +496,7 @@ async function init() {
 	defaultDarkTheme = meta.defaultDarkTheme;
 	maintainerName = meta.maintainerName;
 	maintainerEmail = meta.maintainerEmail;
+	donationLink = meta.donationLink;
 	enableLocalTimeline = !meta.disableLocalTimeline;
 	enableGlobalTimeline = !meta.disableGlobalTimeline;
 	enableRecommendedTimeline = !meta.disableRecommendedTimeline;
@@ -527,6 +543,7 @@ function save() {
 		defaultDarkTheme: defaultDarkTheme === "" ? null : defaultDarkTheme,
 		maintainerName,
 		maintainerEmail,
+		donationLink,
 		disableLocalTimeline: !enableLocalTimeline,
 		disableGlobalTimeline: !enableGlobalTimeline,
 		disableRecommendedTimeline: !enableRecommendedTimeline,
diff --git a/packages/client/src/pages/settings/2fa.vue b/packages/client/src/pages/settings/2fa.vue
index e8c616493..4a1598e16 100644
--- a/packages/client/src/pages/settings/2fa.vue
+++ b/packages/client/src/pages/settings/2fa.vue
@@ -82,7 +82,7 @@
 							<p>
 								{{ `${i18n.ts.lastUsedDate}: ${key.lastUsed}` }}
 							</p>
-							<div class="_buttons _flexList">
+							<div class="_flexList">
 								<MkButton @click="renameKey(key)"
 									><i
 										class="ph-pencil-line ph-bold ph-lg"