diff --git a/db/schema.ts b/db/schema.ts
index 9d22983..9ab308a 100644
--- a/db/schema.ts
+++ b/db/schema.ts
@@ -53,7 +53,19 @@ export type SourceType =
 	| "codeberg"
 	| "sourceforge"
 	| "play_store"
-	| "direct"; // APK from website, etc.
+	| "direct" // APK from website, etc.
+	// Third-party F-Droid-format repos (see db/seed/data/fdroid-repos.ts)
+	| "guardian"
+	| "microg"
+	| "molly"
+	| "cromite"
+	| "bitwarden"
+	| "threema"
+	| "session"
+	| "briar"
+	| "simplex"
+	| "newpipe"
+	| "calyx";
 
 export type AppSourceMetadata = {
 	apkFilterRegex?: string;
diff --git a/db/seed/data/fdroid-repos.ts b/db/seed/data/fdroid-repos.ts
new file mode 100644
index 0000000..275da6e
--- /dev/null
+++ b/db/seed/data/fdroid-repos.ts
@@ -0,0 +1,100 @@
+import type { SourceType } from "../../schema";
+
+/**
+ * Third-party F-Droid-format repositories (index-v2), typically run by the
+ * app developers themselves. Each entry becomes its own source type so an
+ * app can carry several repo sources without colliding on the
+ * (app_id, source) unique constraint.
+ */
+export type ThirdPartyFdroidRepo = {
+	/** Source type slug stored in app_sources.source */
+	source: SourceType;
+	/** Display name — also used as the Obtainium config author */
+	name: string;
+	/** Base repo URL; the index lives at `${repoUrl}/index-v2.json` */
+	repoUrl: string;
+	/** Human-facing page linked from source badges */
+	webUrl: string;
+	/** Filename inside .cache/ */
+	cacheFile: string;
+};
+
+export const thirdPartyFdroidRepos: ThirdPartyFdroidRepo[] = [
+	{
+		source: "guardian",
+		name: "Guardian Project",
+		repoUrl: "https://guardianproject.info/fdroid/repo",
+		webUrl: "https://guardianproject.info/fdroid/",
+		cacheFile: "guardian-index.json",
+	},
+	{
+		source: "microg",
+		name: "microG",
+		repoUrl: "https://microg.org/fdroid/repo",
+		webUrl: "https://microg.org/download.html",
+		cacheFile: "microg-index.json",
+	},
+	{
+		source: "molly",
+		name: "Molly",
+		repoUrl: "https://molly.im/fdroid/foss/fdroid/repo",
+		webUrl: "https://molly.im/download/fdroid/",
+		cacheFile: "molly-index.json",
+	},
+	{
+		source: "cromite",
+		name: "Cromite",
+		repoUrl: "https://www.cromite.org/fdroid/repo",
+		webUrl: "https://www.cromite.org/",
+		cacheFile: "cromite-index.json",
+	},
+	{
+		source: "bitwarden",
+		name: "Bitwarden",
+		repoUrl: "https://mobileapp.bitwarden.com/fdroid/repo",
+		webUrl: "https://bitwarden.com/download/",
+		cacheFile: "bitwarden-index.json",
+	},
+	{
+		source: "threema",
+		name: "Threema Libre",
+		repoUrl: "https://releases.threema.ch/fdroid/repo",
+		webUrl: "https://threema.ch/en/faq/threema_libre",
+		cacheFile: "threema-index.json",
+	},
+	{
+		source: "session",
+		name: "Session",
+		repoUrl: "https://fdroid.getsession.org/fdroid/repo",
+		webUrl: "https://getsession.org/download",
+		cacheFile: "session-index.json",
+	},
+	{
+		source: "briar",
+		name: "Briar",
+		repoUrl: "https://briarproject.org/fdroid/repo",
+		webUrl: "https://briarproject.org/download-briar/",
+		cacheFile: "briar-index.json",
+	},
+	{
+		source: "simplex",
+		name: "SimpleX Chat",
+		repoUrl: "https://app.simplex.chat/fdroid/repo",
+		webUrl: "https://simplex.chat/downloads/",
+		cacheFile: "simplex-index.json",
+	},
+	{
+		source: "newpipe",
+		name: "NewPipe",
+		repoUrl: "https://archive.newpipe.net/fdroid/repo",
+		webUrl: "https://newpipe.net/",
+		cacheFile: "newpipe-index.json",
+	},
+	{
+		source: "calyx",
+		name: "Calyx Institute",
+		repoUrl: "https://calyxos.gitlab.io/calyx-fdroid-repo/fdroid/repo",
+		webUrl: "https://calyxinstitute.org/",
+		cacheFile: "calyx-index.json",
+	},
+];
diff --git a/db/seed/fetch.ts b/db/seed/fetch.ts
index 3f7057e..4f0faa0 100644
--- a/db/seed/fetch.ts
+++ b/db/seed/fetch.ts
@@ -2,6 +2,7 @@ import "dotenv/config";
 import { execFileSync } from "node:child_process";
 import * as fs from "node:fs";
 import * as path from "node:path";
+import { thirdPartyFdroidRepos } from "./data/fdroid-repos";
 
 const CACHE_DIR = path.resolve(process.cwd(), ".cache");
 
@@ -79,6 +80,22 @@ async function main() {
 		"IzzyOnDroid index",
 	);
 
+	// Third-party repos are best-effort: a repo being down shouldn't
+	// block the whole fetch (existing cached copies keep being used).
+	for (const repo of thirdPartyFdroidRepos) {
+		try {
+			await fetchFile(
+				`${repo.repoUrl}/index-v2.json`,
+				path.join(CACHE_DIR, repo.cacheFile),
+				`${repo.name} repo index`,
+			);
+		} catch (err) {
+			console.warn(
+				`  [skip]   ${repo.name}: ${err instanceof Error ? err.message : err}`,
+			);
+		}
+	}
+
 	fetchGitRepo(
 		SOURCES.obtainium.repo,
 		path.join(CACHE_DIR, SOURCES.obtainium.dir),
diff --git a/db/seed/import.ts b/db/seed/import.ts
index 0c21960..56a4c91 100644
--- a/db/seed/import.ts
+++ b/db/seed/import.ts
@@ -8,6 +8,7 @@ import * as schema from "../schema";
 import { appSources, apps, proprietaryApps, tags } from "../schema";
 import { alternativeMappings } from "./data/alternatives";
 import { appOverrides } from "./data/app-overrides";
+import { thirdPartyFdroidRepos } from "./data/fdroid-repos";
 import { proprietaryApps as proprietaryAppSeeds } from "./data/proprietary-apps";
 import { fdroidAntiFeatureMap, fdroidCategoryMap, tagSeeds } from "./data/tags";
 import { webApps as webAppSeeds } from "./data/web-apps";
@@ -31,6 +32,7 @@ const db = drizzle(client, { schema });
 const stats = {
 	fdroidParsed: 0,
 	izzyParsed: 0,
+	thirdPartyParsed: 0,
 	obtainiumParsed: 0,
 	uniqueApps: 0,
 	mergedSources: 0,
@@ -69,6 +71,20 @@ function parseAllSources(): ParsedApp[] {
 		console.warn("IzzyOnDroid index not found — run seed:fetch first");
 	}
 
+	for (const repo of thirdPartyFdroidRepos) {
+		const repoPath = path.join(CACHE_DIR, repo.cacheFile);
+		if (!fs.existsSync(repoPath)) {
+			console.warn(`${repo.name} index not found — run seed:fetch first`);
+			continue;
+		}
+		console.log(`Parsing ${repo.name} repo index...`);
+		const repoIndex = JSON.parse(fs.readFileSync(repoPath, "utf-8"));
+		const repoApps = parseFDroidIndex(repoIndex, repo);
+		stats.thirdPartyParsed += repoApps.length;
+		console.log(`  ${repoApps.length} apps parsed`);
+		allApps.push(...repoApps);
+	}
+
 	const obtainiumDir = path.join(CACHE_DIR, "obtainium");
 	if (fs.existsSync(obtainiumDir)) {
 		console.log("Parsing Obtainium configs...");
@@ -142,7 +158,14 @@ async function upsertApps(dedupedApps: ParsedApp[]) {
 					license = COALESCE(excluded.license, apps.license),
 					website_url = COALESCE(excluded.website_url, apps.website_url),
 					repository_url = COALESCE(excluded.repository_url, apps.repository_url),
-					updated_at = excluded.updated_at`,
+					updated_at = CASE WHEN
+							apps.name IS NOT excluded.name
+							OR COALESCE(excluded.description, apps.description) IS NOT apps.description
+							OR COALESCE(excluded.icon_url, apps.icon_url) IS NOT apps.icon_url
+							OR COALESCE(excluded.license, apps.license) IS NOT apps.license
+							OR COALESCE(excluded.website_url, apps.website_url) IS NOT apps.website_url
+							OR COALESCE(excluded.repository_url, apps.repository_url) IS NOT apps.repository_url
+						THEN excluded.updated_at ELSE apps.updated_at END`,
 			args: [
 				appId,
 				parsed.name,
@@ -306,7 +329,14 @@ async function upsertProprietaryApps() {
 				ON CONFLICT (slug) DO UPDATE SET
 					name = excluded.name, description = excluded.description,
 					icon_url = excluded.icon_url, website_url = excluded.website_url,
-					package_name = excluded.package_name, updated_at = excluded.updated_at`,
+					package_name = excluded.package_name,
+					updated_at = CASE WHEN
+							proprietary_apps.name IS NOT excluded.name
+							OR proprietary_apps.description IS NOT excluded.description
+							OR proprietary_apps.icon_url IS NOT excluded.icon_url
+							OR proprietary_apps.website_url IS NOT excluded.website_url
+							OR proprietary_apps.package_name IS NOT excluded.package_name
+						THEN excluded.updated_at ELSE proprietary_apps.updated_at END`,
 			args: [
 				propId,
 				seed.name,
@@ -368,7 +398,12 @@ async function upsertWebApps() {
 					description = COALESCE(excluded.description, apps.description),
 					website_url = COALESCE(excluded.website_url, apps.website_url),
 					repository_url = COALESCE(excluded.repository_url, apps.repository_url),
-					updated_at = excluded.updated_at`,
+					updated_at = CASE WHEN
+							apps.name IS NOT excluded.name
+							OR COALESCE(excluded.description, apps.description) IS NOT apps.description
+							OR COALESCE(excluded.website_url, apps.website_url) IS NOT apps.website_url
+							OR COALESCE(excluded.repository_url, apps.repository_url) IS NOT apps.repository_url
+						THEN excluded.updated_at ELSE apps.updated_at END`,
 			args: [
 				generateId(),
 				seed.name,
@@ -505,7 +540,7 @@ async function main() {
 	console.log(`\n${"═".repeat(50)}`);
 	console.log("Import complete:");
 	console.log(
-		`  Parsed:  ${stats.fdroidParsed} F-Droid | ${stats.izzyParsed} Izzy | ${stats.obtainiumParsed} Obtainium`,
+		`  Parsed:  ${stats.fdroidParsed} F-Droid | ${stats.izzyParsed} Izzy | ${stats.thirdPartyParsed} third-party repos | ${stats.obtainiumParsed} Obtainium`,
 	);
 	console.log(
 		`  Deduped: ${stats.uniqueApps} unique (${stats.mergedSources} merged)`,
diff --git a/db/seed/parsers/fdroid.ts b/db/seed/parsers/fdroid.ts
index 4b1b2a9..50a2964 100644
--- a/db/seed/parsers/fdroid.ts
+++ b/db/seed/parsers/fdroid.ts
@@ -1,4 +1,5 @@
-import type { ParsedApp } from "../lib/types";
+import type { ThirdPartyFdroidRepo } from "../data/fdroid-repos";
+import type { ParsedApp, ParsedAppSource } from "../lib/types";
 
 type FDroidIndex = {
 	repo: { address: string };
@@ -37,11 +38,19 @@ function extractAntiFeatures(
 
 export type FDroidSourceType = "fdroid" | "izzyondroid";
 
+/**
+ * Parse any F-Droid-format index-v2 file. Pass "fdroid"/"izzyondroid" for
+ * the two main repos (which have per-app web pages), or a
+ * ThirdPartyFdroidRepo entry for a developer-run repo — those get the
+ * repo's human-facing page as the source URL plus a full Obtainium
+ * FDroidRepo config so install deep links work.
+ */
 export function parseFDroidIndex(
 	indexJson: FDroidIndex,
-	sourceType: FDroidSourceType,
+	sourceType: FDroidSourceType | ThirdPartyFdroidRepo,
 ): ParsedApp[] {
-	const repoAddress = indexJson.repo?.address || "";
+	const repo = typeof sourceType === "string" ? undefined : sourceType;
+	const repoAddress = indexJson.repo?.address || repo?.repoUrl || "";
 	const apps: ParsedApp[] = [];
 
 	for (const [packageName, pkg] of Object.entries(indexJson.packages)) {
@@ -58,10 +67,31 @@ export function parseFDroidIndex(
 			iconUrl = `${repoAddress}${iconPath}`;
 		}
 
-		const sourceUrl =
-			sourceType === "fdroid"
-				? `https://f-droid.org/packages/${packageName}/`
-				: `https://apt.izzysoft.de/fdroid/index/apk/${packageName}`;
+		let source: ParsedAppSource;
+		if (repo) {
+			source = {
+				source: repo.source,
+				url: repo.webUrl,
+				metadata: {
+					obtainiumConfig: {
+						id: packageName,
+						url: repoAddress,
+						name,
+						author: repo.name,
+						additionalSettings: JSON.stringify({ appIdOrName: packageName }),
+						overrideSource: "FDroidRepo",
+					},
+				},
+			};
+		} else {
+			source = {
+				source: sourceType as FDroidSourceType,
+				url:
+					sourceType === "fdroid"
+						? `https://f-droid.org/packages/${packageName}/`
+						: `https://apt.izzysoft.de/fdroid/index/apk/${packageName}`,
+			};
+		}
 
 		apps.push({
 			packageName,
@@ -74,7 +104,7 @@ export function parseFDroidIndex(
 			repositoryUrl: meta.sourceCode || undefined,
 			categories: meta.categories || [],
 			antiFeatures: extractAntiFeatures(meta.antiFeatures),
-			sources: [{ source: sourceType, url: sourceUrl }],
+			sources: [source],
 		});
 	}
 
diff --git a/src/components/source-badge.tsx b/src/components/source-badge.tsx
index 47528f3..279f634 100644
--- a/src/components/source-badge.tsx
+++ b/src/components/source-badge.tsx
@@ -9,6 +9,17 @@ const sourceStyles: Record<string, string> = {
 	sourceforge: "border-amber-500/30 bg-amber-500/10 text-amber-400",
 	direct: "border-purple-500/30 bg-purple-500/10 text-purple-400",
 	play_store: "border-emerald-500/30 bg-emerald-500/10 text-emerald-400",
+	guardian: "border-indigo-500/30 bg-indigo-500/10 text-indigo-400",
+	microg: "border-sky-500/30 bg-sky-500/10 text-sky-400",
+	molly: "border-rose-500/30 bg-rose-500/10 text-rose-400",
+	cromite: "border-cyan-500/30 bg-cyan-500/10 text-cyan-400",
+	bitwarden: "border-blue-500/30 bg-blue-500/10 text-blue-300",
+	threema: "border-lime-500/30 bg-lime-500/10 text-lime-400",
+	session: "border-violet-500/30 bg-violet-500/10 text-violet-400",
+	briar: "border-fuchsia-500/30 bg-fuchsia-500/10 text-fuchsia-400",
+	simplex: "border-yellow-500/30 bg-yellow-500/10 text-yellow-400",
+	newpipe: "border-red-500/30 bg-red-500/10 text-red-400",
+	calyx: "border-stone-400/30 bg-stone-400/10 text-stone-300",
 };
 
 const sourceLabels: Record<string, string> = {
@@ -20,6 +31,17 @@ const sourceLabels: Record<string, string> = {
 	sourceforge: "SourceForge",
 	direct: "Direct",
 	play_store: "Play Store",
+	guardian: "Guardian Project",
+	microg: "microG",
+	molly: "Molly",
+	cromite: "Cromite",
+	bitwarden: "Bitwarden",
+	threema: "Threema",
+	session: "Session",
+	briar: "Briar",
+	simplex: "SimpleX",
+	newpipe: "NewPipe",
+	calyx: "Calyx",
 };
 
 interface SourceBadgeProps {
diff --git a/src/lib/obtainium.ts b/src/lib/obtainium.ts
index 0c1de83..ed89984 100644
--- a/src/lib/obtainium.ts
+++ b/src/lib/obtainium.ts
@@ -9,6 +9,7 @@ type ObtainiumSource = {
 	source: string;
 	label: string;
 	link: string;
+	hasConfig: boolean;
 };
 
 const SOURCE_PRIORITY: Record<string, number> = {
@@ -17,8 +18,20 @@ const SOURCE_PRIORITY: Record<string, number> = {
 	codeberg: 2,
 	fdroid: 3,
 	izzyondroid: 4,
-	sourceforge: 5,
-	direct: 6,
+	// Developer-run F-Droid repos
+	guardian: 5,
+	microg: 5,
+	molly: 5,
+	cromite: 5,
+	bitwarden: 5,
+	threema: 5,
+	session: 5,
+	briar: 5,
+	simplex: 5,
+	newpipe: 5,
+	calyx: 5,
+	sourceforge: 6,
+	direct: 7,
 };
 
 const SOURCE_LABELS: Record<string, string> = {
@@ -29,6 +42,17 @@ const SOURCE_LABELS: Record<string, string> = {
 	izzyondroid: "via IzzyOnDroid",
 	sourceforge: "via SourceForge",
 	direct: "Direct download",
+	guardian: "via Guardian Project repo",
+	microg: "via microG repo",
+	molly: "via Molly repo",
+	cromite: "via Cromite repo",
+	bitwarden: "via Bitwarden repo",
+	threema: "via Threema repo",
+	session: "via Session repo",
+	briar: "via Briar repo",
+	simplex: "via SimpleX repo",
+	newpipe: "via NewPipe repo",
+	calyx: "via Calyx repo",
 };
 
 /**
@@ -92,18 +116,15 @@ export function getObtainiumSources(sources: SourceInfo[]): ObtainiumSource[] {
 
 		results.push({
 			source: source.source,
-			label: meta?.obtainiumConfig
-				? "Obtainium config"
-				: (SOURCE_LABELS[source.source] ?? source.source),
+			label: SOURCE_LABELS[source.source] ?? source.source,
 			link,
+			hasConfig: Boolean(meta?.obtainiumConfig),
 		});
 	}
 
 	// Sources with obtainiumConfig get top priority, then by source type
 	return results.sort((a, b) => {
-		const aHasConfig = a.label === "Obtainium config" ? 0 : 1;
-		const bHasConfig = b.label === "Obtainium config" ? 0 : 1;
-		if (aHasConfig !== bHasConfig) return aHasConfig - bHasConfig;
+		if (a.hasConfig !== b.hasConfig) return a.hasConfig ? -1 : 1;
 		return (
 			(SOURCE_PRIORITY[a.source] ?? 99) - (SOURCE_PRIORITY[b.source] ?? 99)
 		);
diff --git a/src/routes/-worker-entry.ts b/src/routes/-worker-entry.ts
index 6cf698c..ba67b1c 100644
--- a/src/routes/-worker-entry.ts
+++ b/src/routes/-worker-entry.ts
@@ -286,6 +286,17 @@ const ALLOWED_ICON_HOSTS = [
 	"assets-prod.sumo.prod.webservices.mozgcp.net",
 	"brave.com",
 	"play-lh.googleusercontent.com",
+	// Third-party F-Droid repo hosts (db/seed/data/fdroid-repos.ts)
+	"microg.org",
+	"molly.im",
+	"cromite.org",
+	"mobileapp.bitwarden.com",
+	"releases.threema.ch",
+	"fdroid.getsession.org",
+	"briarproject.org",
+	"app.simplex.chat",
+	"archive.newpipe.net",
+	"calyxos.gitlab.io",
 ];
 
 const ICON_CACHE_SECONDS = 7 * 24 * 60 * 60; // 7 days