diff --git a/docs/DEPLOIEMENT-SVELTEKIT.md b/docs/DEPLOIEMENT-SVELTEKIT.md
index 614eca5..5efdf7a 100644
--- a/docs/DEPLOIEMENT-SVELTEKIT.md
+++ b/docs/DEPLOIEMENT-SVELTEKIT.md
@@ -6,7 +6,9 @@ Branche `svelte` : le hub est un site **100 % statique** (SvelteKit + adapter-st
 
 ```bash
 npm ci
-npm run build        # génère build/ + injecte la CSP par page (scripts/postbuild-csp.mjs)
+npm run build        # prebuild : optimise les pochettes Castopod (scripts/fetch-podcast-cover.mjs,
+                     # nécessite ImageMagick) et les vignettes/médias distants (scripts/optimize-remote-images.mjs)
+                     # puis génère build/ + injecte la CSP par page (scripts/postbuild-csp.mjs)
 npm run preview      # vérification locale
 ```
 
diff --git a/package-lock.json b/package-lock.json
index 75fba85..7a4e415 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
 				"@sveltejs/adapter-static": "^3.0.10",
 				"@sveltejs/kit": "^2.63.0",
 				"@sveltejs/vite-plugin-svelte": "^7.1.2",
+				"@types/node": "^26.1.1",
 				"svelte": "^5.56.1",
 				"svelte-check": "^4.6.0",
 				"typescript": "^6.0.3",
@@ -2614,6 +2615,16 @@
 			"dev": true,
 			"license": "MIT"
 		},
+		"node_modules/@types/node": {
+			"version": "26.1.1",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.1.tgz",
+			"integrity": "sha512-nxAkRSVkN1Y0JC1W8ky/fTfkGsMmcrRsbx+3XoZE+rMOX71kLYTV7fLXpqud1GpbpP5TuffXFqfX7fH2GgZREw==",
+			"dev": true,
+			"license": "MIT",
+			"dependencies": {
+				"undici-types": "~8.3.0"
+			}
+		},
 		"node_modules/@types/resolve": {
 			"version": "1.20.2",
 			"resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.20.2.tgz",
@@ -5986,6 +5997,13 @@
 				"url": "https://github.com/sponsors/ljharb"
 			}
 		},
+		"node_modules/undici-types": {
+			"version": "8.3.0",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+			"integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
+			"dev": true,
+			"license": "MIT"
+		},
 		"node_modules/unicode-canonical-property-names-ecmascript": {
 			"version": "2.0.1",
 			"resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-2.0.1.tgz",
diff --git a/package.json b/package.json
index ee52076..82bf368 100644
--- a/package.json
+++ b/package.json
@@ -10,12 +10,14 @@
 		"prepare": "svelte-kit sync || echo ''",
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
-		"postbuild": "node scripts/postbuild-csp.mjs"
+		"postbuild": "node scripts/postbuild-csp.mjs",
+		"prebuild": "node scripts/fetch-podcast-cover.mjs && node scripts/optimize-remote-images.mjs"
 	},
 	"devDependencies": {
 		"@sveltejs/adapter-static": "^3.0.10",
 		"@sveltejs/kit": "^2.63.0",
 		"@sveltejs/vite-plugin-svelte": "^7.1.2",
+		"@types/node": "^26.1.1",
 		"svelte": "^5.56.1",
 		"svelte-check": "^4.6.0",
 		"typescript": "^6.0.3",
diff --git a/scripts/fetch-podcast-cover.mjs b/scripts/fetch-podcast-cover.mjs
new file mode 100644
index 0000000..ef9bacc
--- /dev/null
+++ b/scripts/fetch-podcast-cover.mjs
@@ -0,0 +1,51 @@
+import { writeFileSync, statSync, mkdirSync } from 'node:fs';
+import { execFileSync } from 'node:child_process';
+import { join, dirname, basename } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const FEED_URL = 'https://kute.o-k-i.net/@annu_kute_cedric/feed';
+const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..');
+const EPISODES_DIR = join(ROOT, 'static', 'images', 'episodes');
+const CHANNEL_COVER = join(ROOT, 'static', 'images', 'podcast-cover.webp');
+
+mkdirSync(EPISODES_DIR, { recursive: true });
+
+const xml = await (await fetch(FEED_URL)).text();
+
+const urls = new Set();
+const channel = xml.split('<item')[0] ?? '';
+const channelMatch =
+	channel.match(/<itunes:image[^>]*href="([^"]+)"/i) ?? channel.match(/<url>([^<]+)<\/url>/i);
+if (channelMatch) urls.add(channelMatch[1]);
+
+for (const item of xml.split(/<item[\s>]/i).slice(1)) {
+	const match = item.match(/<itunes:image[^>]*href="([^"]+)"/i);
+	if (match) urls.add(match[1]);
+}
+
+let total = 0;
+
+for (const url of urls) {
+	const isChannel = url === channelMatch?.[1];
+	const out = isChannel
+		? CHANNEL_COVER
+		: join(EPISODES_DIR, basename(url).replace(/\.(png|jpe?g|gif|webp)$/i, '.webp'));
+	try {
+		const res = await fetch(url);
+		if (!res.ok) {
+			console.warn(`[covers] HTTP ${res.status} pour ${url}`);
+			continue;
+		}
+		const source = Buffer.from(await res.arrayBuffer());
+		const tmp = `/tmp/opencode/cover-${Date.now()}`;
+		writeFileSync(tmp, source);
+		execFileSync('convert', [tmp, '-resize', '512x512>', '-quality', '82', '-define', 'webp:method=6', out]);
+		const size = statSync(out).size;
+		total += size;
+		console.log(`[covers] ${basename(out)} : ${Math.round(source.length / 1024)} Ko → ${Math.round(size / 1024)} Ko`);
+	} catch (err) {
+		console.warn(`[covers] échec pour ${url}:`, err.message);
+	}
+}
+
+console.log(`[covers] total optimisé : ${Math.round(total / 1024)} Ko`);
diff --git a/scripts/optimize-remote-images.mjs b/scripts/optimize-remote-images.mjs
new file mode 100644
index 0000000..289484c
--- /dev/null
+++ b/scripts/optimize-remote-images.mjs
@@ -0,0 +1,112 @@
+import { createHash } from 'node:crypto';
+import { mkdirSync, writeFileSync, statSync } from 'node:fs';
+import { execFileSync } from 'node:child_process';
+import { join, dirname } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const ROOT = join(dirname(fileURLToPath(import.meta.url)), '..');
+const OUT_DIR = join(ROOT, 'static', 'images', 'remote');
+const MAP_FILE = join(ROOT, 'src', 'lib', 'server', 'image-map.json');
+
+const PEERTUBE = 'https://gade.o-k-i.net';
+const MASTODON = 'https://bokante.o-k-i.net';
+const MASTODON_ACCT = 'cedric';
+const PRIORITY_CATEGORIES = [11, 15, 4, 9, 10];
+
+mkdirSync(OUT_DIR, { recursive: true });
+
+const urls = new Map();
+
+function localPathFor(remoteUrl, width) {
+	const hash = createHash('sha1').update(remoteUrl).digest('hex').slice(0, 16);
+	return { local: `/images/remote/${hash}.webp`, width };
+}
+
+async function collectVideos(params, width) {
+	const query = new URLSearchParams({ isLocal: 'true', ...params });
+	try {
+		const res = await fetch(`${PEERTUBE}/api/v1/videos?${query}`);
+		if (!res.ok) return;
+		const data = await res.json();
+		for (const video of data?.data ?? []) {
+			if (video.previewPath) {
+				const url = `${PEERTUBE}${video.previewPath}`;
+				if (!urls.has(url)) urls.set(url, localPathFor(url, width));
+			}
+			const avatar = video.channel?.avatars?.[0]?.path;
+			if (avatar) {
+				const url = `${PEERTUBE}${avatar}`;
+				if (!urls.has(url)) urls.set(url, localPathFor(url, 96));
+			}
+		}
+	} catch (err) {
+		console.warn('[images] collectVideos échoué:', err.message);
+	}
+}
+
+// Pool récent (couvre récentes, shorts et l'essentiel des catégories) + tendances + chaque catégorie prioritaire
+await collectVideos({ sort: '-publishedAt', count: '100' }, 640);
+await collectVideos({ sort: '-trending', count: '6' }, 640);
+for (const id of PRIORITY_CATEGORIES) {
+	await collectVideos({ categoryOneOf: String(id), sort: '-publishedAt', count: '6' }, 640);
+}
+
+// Médias de la timeline Mastodon
+try {
+	const account = await (
+		await fetch(`${MASTODON}/api/v1/accounts/lookup?acct=${encodeURIComponent(MASTODON_ACCT)}`)
+	).json();
+	if (account?.id) {
+		const statuses = await (
+			await fetch(`${MASTODON}/api/v1/accounts/${account.id}/statuses?limit=10&exclude_replies=true`)
+		).json();
+		for (const status of statuses ?? []) {
+			const source = status.reblog ?? status;
+			for (const media of source.media_attachments ?? []) {
+				const url = media.preview_url ?? media.url;
+				if (url && !urls.has(url)) urls.set(url, localPathFor(url, 800));
+			}
+		}
+	}
+} catch (err) {
+	console.warn('[images] médias Mastodon échoués:', err.message);
+}
+
+console.log(`[images] ${urls.size} image(s) distante(s) à optimiser`);
+
+const map = {};
+let total = 0;
+let done = 0;
+
+for (const [remote, { local, width }] of urls) {
+	const out = join(OUT_DIR, local.split('/').pop());
+	try {
+		const res = await fetch(remote);
+		if (!res.ok) {
+			console.warn(`[images] HTTP ${res.status} pour ${remote}`);
+			continue;
+		}
+		const source = Buffer.from(await res.arrayBuffer());
+		const tmp = `/tmp/opencode/img-${done}`;
+		writeFileSync(tmp, source);
+		execFileSync('convert', [
+			tmp,
+			'-auto-orient',
+			'-resize',
+			`${width}x${width}>`,
+			'-quality',
+			'80',
+			'-define',
+			'webp:method=6',
+			out
+		]);
+		map[remote] = local;
+		total += statSync(out).size;
+		done++;
+	} catch (err) {
+		console.warn(`[images] échec pour ${remote}:`, err.message);
+	}
+}
+
+writeFileSync(MAP_FILE, JSON.stringify(map, null, '\t') + '\n');
+console.log(`[images] ${done} optimisée(s), ${Math.round(total / 1024)} Ko au total`);
diff --git a/src/lib/components/Footer.svelte b/src/lib/components/Footer.svelte
index 48fcd2c..edda692 100644
--- a/src/lib/components/Footer.svelte
+++ b/src/lib/components/Footer.svelte
@@ -231,5 +231,7 @@
 	.footer-federated a,
 	.footer-copyright a {
 		color: var(--accent);
+		text-decoration: underline;
+		text-underline-offset: 0.15em;
 	}
 </style>
diff --git a/src/lib/components/MastodonTimeline.svelte b/src/lib/components/MastodonTimeline.svelte
index f9a9bca..6bef71b 100644
--- a/src/lib/components/MastodonTimeline.svelte
+++ b/src/lib/components/MastodonTimeline.svelte
@@ -79,6 +79,7 @@
 
 	.post-content {
 		font-size: 0.95rem;
+		line-height: 1.9;
 		overflow-wrap: anywhere;
 	}
 
@@ -86,6 +87,8 @@
 		color: var(--accent);
 		text-decoration: underline;
 		text-underline-offset: 0.15em;
+		display: inline-block;
+		padding: 0.35rem 0.15rem;
 	}
 
 	.post-media {
diff --git a/src/lib/server/castopod.ts b/src/lib/server/castopod.ts
index f648bae..765307e 100644
--- a/src/lib/server/castopod.ts
+++ b/src/lib/server/castopod.ts
@@ -1,7 +1,20 @@
+import { existsSync } from 'node:fs';
 import { castopod } from '$lib/config';
 import { fetchText } from './http';
 import type { Episode } from '$lib/types';
 
+// Pochette du flux optimisée au prebuild (scripts/fetch-podcast-cover.mjs)
+const LOCAL_COVER = '/images/podcast-cover.webp';
+const hasLocalCover = existsSync(`static${LOCAL_COVER}`);
+
+function localEpisodeCover(remoteUrl: string | null): string | null {
+	if (!remoteUrl) return null;
+	const file = remoteUrl.split('/').pop()?.replace(/\.(png|jpe?g|gif|webp)$/i, '.webp');
+	if (!file) return remoteUrl;
+	const local = `/images/episodes/${file}`;
+	return existsSync(`static${local}`) ? local : remoteUrl;
+}
+
 function tag(xml: string, name: string): string {
 	const cdata = new RegExp(`<${name}[^>]*><!\\[CDATA\\[([\\s\\S]*?)\\]\\]></${name}>`, 'i');
 	const plain = new RegExp(`<${name}[^>]*>([\\s\\S]*?)</${name}>`, 'i');
@@ -53,6 +66,10 @@ async function getEpisodesForSlug(slug: string): Promise<Episode[]> {
 		const link = tag(body, 'link');
 		const guid = tag(body, 'guid') || link || `${slug}-${index}`;
 		const description = stripTags(tag(body, 'description') || tag(body, 'itunes:summary'));
+		const remoteImage = attr(body, 'itunes:image', 'href') || channelImage || null;
+		// Les pochettes du flux (souvent lourdes) sont remplacées par leurs versions optimisées au build
+		const image =
+			hasLocalCover && remoteImage === channelImage ? LOCAL_COVER : localEpisodeCover(remoteImage);
 		return {
 			id: guid,
 			title,
@@ -61,7 +78,7 @@ async function getEpisodesForSlug(slug: string): Promise<Episode[]> {
 			audioType: attr(body, 'enclosure', 'type') || 'audio/mpeg',
 			duration: parseDuration(tag(body, 'itunes:duration')),
 			date: tag(body, 'pubDate'),
-			image: attr(body, 'itunes:image', 'href') || channelImage || null,
+			image,
 			link,
 			podcast: slug
 		};
diff --git a/src/lib/server/image-map.json b/src/lib/server/image-map.json
new file mode 100644
index 0000000..92e663d
--- /dev/null
+++ b/src/lib/server/image-map.json
@@ -0,0 +1,61 @@
+{
+	"https://gade.o-k-i.net/lazy-static/thumbnails/ee8fe93e-62b0-45a3-b200-3b9a7d34ad37.jpg": "/images/remote/8d484efeec42b22e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/713279b3-0a30-4e88-a4cd-2bd9015706ff.jpg": "/images/remote/2b57d5382f67e8a6.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/b483874d-df89-4403-aabb-684f4eeffce8.png": "/images/remote/b82953cc708a503e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/65458991-cc2d-4f88-b04b-1ecb4c831196.jpg": "/images/remote/1e1a6bad9723ecba.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/19ed28dd-429b-4b86-9f5b-032b0fd8a555.jpg": "/images/remote/a105bc4c5812eb6d.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/a02a736a-1ca2-48cb-bd04-6adb8ab8bd3f.jpg": "/images/remote/7e49bf87876caf2b.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/df2d06a4-c5f1-40b2-85c6-bb2cc6f75f0f.jpg": "/images/remote/23a4aee1ddac377d.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/ac2d53df-9432-419a-bafa-4e92a23a065a.png": "/images/remote/ca91ce3a8c6c048c.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/1af26d32-dd03-4ef9-9cb7-e4680630b93a.png": "/images/remote/d3efbaf0d582a4de.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/7a40594d-6ee8-4a93-a891-acf6a06706e5.jpg": "/images/remote/d668c254603561d5.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/c433fb22-085b-4b95-840d-a244a16b9d86.jpg": "/images/remote/7f3ee600df8bf0a9.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/eeee79a2-13a7-41f3-8cf7-c0356e8b4af1.jpg": "/images/remote/8b91a7098be22de6.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/68710d9c-f623-4db3-950c-5dcb9519ea89.png": "/images/remote/72f6f94d5459b36c.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/aa49c8f7-e746-4087-ac8a-b18911ae34bb.jpg": "/images/remote/953bc828f4a909ed.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/04471380-b2fc-410d-a255-d1ed2c566582.jpg": "/images/remote/dd3dfb419e66a44c.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/f9dcc845-f6dc-4383-abac-192a74d3ddbb.jpg": "/images/remote/2cd6b3491e675fe9.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/ee9d0e2b-a266-4e5e-b708-f8a68dd38cd8.jpg": "/images/remote/7794b4aa91e0886e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/63aab582-1e95-403f-8fd4-2cd1355e4c48.jpg": "/images/remote/06c7423ee81dbae1.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/f06d5990-2113-428d-8364-cedc2dd5163f.jpg": "/images/remote/38183e7822943589.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/e034ba48-4696-4747-8090-36a1ffb7ead8.jpg": "/images/remote/83b50cf812d906f0.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/8a1726da-b05c-4f4c-9d02-a84aa80089cb.jpg": "/images/remote/ce0279994a8d0c22.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/eae89876-94f3-4c32-b5bb-d1cd44551ca5.jpg": "/images/remote/626f2aa1c4d7030a.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/82061a8c-4435-4759-b905-5c8a10eb8a8f.jpg": "/images/remote/efa5aca9038f196e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/b1472219-de2b-4a85-8f95-bd544eaf5797.jpg": "/images/remote/940f43beb51345fa.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/28acfa31-e05d-49c6-89b0-2da42502416e.jpg": "/images/remote/64ba2429385bdd5f.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/9b9fde1a-be2f-4c7c-8372-f3d65aad73ac.jpg": "/images/remote/674d7ec610419571.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/35d753a1-cd9f-4f64-999f-483ef4c8d0f6.jpg": "/images/remote/ff2cc37374f4a362.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/730fcddd-645e-4377-9b93-f38835818b7d.jpg": "/images/remote/a7ced37c3c927888.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/66cf4194-3e6c-4c09-adb1-b3ae6591c6a0.jpg": "/images/remote/4ebf139c7ad742c0.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/bcdc941d-1be8-4c67-b0c7-d40313ef9aaf.png": "/images/remote/5a4d501bd6d6088c.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/14fa6efc-9a9a-4c36-a044-02300a92af47.jpg": "/images/remote/461e77261af8212f.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/7b7768e4-eeac-4024-a59e-052bdfbefe25.jpg": "/images/remote/a652b99264ef113c.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/f6730ffc-8236-4df3-83f9-bce65b1c5973.jpg": "/images/remote/cc2a19d9f6ac44b1.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/9fe95de1-ea17-41f9-ae02-d4b93f33f3e9.jpg": "/images/remote/e0d61d23865f0262.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/a1799f29-ffd4-4c9f-a4a6-7cdfe56cd48c.png": "/images/remote/880d1ba7cf4187a5.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/df91692b-df37-4350-a5e4-3b9a1f56af8e.png": "/images/remote/035f2b8e8f5ee0dd.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/ad988f0b-1fd7-46bc-93b2-0d8b9587b880.jpg": "/images/remote/2713aa6bd6511e7e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/f60a9ca6-7a62-44c2-a242-016fdc530577.jpg": "/images/remote/67b3bca007b144c5.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/3f130e71-7cfd-473b-8ea2-80df832c1241.jpg": "/images/remote/b9e62fd5fa9ce102.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/61f25602-6dd7-4fe1-9269-af0fe3f73527.jpg": "/images/remote/e7c1aec80a4fc8b6.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/23fdd0ad-8256-45b2-b8fa-15496fef9d3f.jpg": "/images/remote/d9d7e08baf18edfe.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/ce2c5680-a787-4028-8768-ca64e8c18fba.jpg": "/images/remote/11f1ace7f75ed731.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/45e971a5-3131-46bc-8a39-db10d68dbd29.jpg": "/images/remote/09eb4898f46c76db.webp",
+	"https://gade.o-k-i.net/lazy-static/avatars/60cbad62-3881-4e34-aa3a-726b80b5d334.png": "/images/remote/62c8fe68d5ea8108.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/bb2aafc3-46bd-4059-a3a7-cd08d4097113.jpg": "/images/remote/4fc5ba257091f2f6.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/160eda0d-326c-480b-81e4-aabe88b46729.jpg": "/images/remote/8ab957ee76be64c8.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/d00d12e6-c5c8-4df8-b0fd-5a49f9675bd4.jpg": "/images/remote/61d4b3032d0c87dd.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/3521d0ed-ae0d-4610-88ff-96c4703d8849.jpg": "/images/remote/d47f4bcf0566064e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/05e25c9a-ef93-4ec4-b7a9-5453745d7af5.jpg": "/images/remote/4ceaa3d9b7bf41aa.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/32220182-8186-4e66-a2d6-03c722fe13af.jpg": "/images/remote/254e260419aa661e.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/5e7b2bd0-edfe-49ca-abee-fbe21321c3d0.jpg": "/images/remote/57e3480631c3524f.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/cbe90101-8276-4a39-bce0-4e3b5ade98a7.jpg": "/images/remote/1f6ca697aa450bf5.webp",
+	"https://gade.o-k-i.net/lazy-static/thumbnails/6ee72db1-d86c-4e6c-8deb-de1672ef40f5.png": "/images/remote/16b11ca906d64dcf.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/961/470/179/848/592/small/a1f65d6923b825c6.png": "/images/remote/f0e99c1fd601e8f4.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/961/462/013/833/918/small/ab87d35ebbc5b3ff.jpg": "/images/remote/b0f9e20257ed9d70.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/961/174/942/983/872/small/9a39261de8c0a287.png": "/images/remote/ac55ca23fae564d8.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/944/486/745/892/539/small/fce48c574fa53917.png": "/images/remote/69a1a813f6b9324e.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/943/727/051/792/872/small/d7c8bcea86822972.png": "/images/remote/656fc21dfbab689a.webp",
+	"https://bokante.o-k-i.net/system/media_attachments/files/116/936/109/649/552/039/small/c80ad03182b67097.png": "/images/remote/e925811cec427259.webp"
+}
diff --git a/src/lib/server/image-map.ts b/src/lib/server/image-map.ts
new file mode 100644
index 0000000..f6d0eba
--- /dev/null
+++ b/src/lib/server/image-map.ts
@@ -0,0 +1,10 @@
+import { existsSync } from 'node:fs';
+import map from './image-map.json' with { type: 'json' };
+
+const imageMap = map as Record<string, string>;
+
+export function mapImage(remoteUrl: string): string {
+	const local = imageMap[remoteUrl];
+	if (local && existsSync(`static${local}`)) return local;
+	return remoteUrl;
+}
diff --git a/src/lib/server/mastodon.ts b/src/lib/server/mastodon.ts
index 1a25070..3ea874f 100644
--- a/src/lib/server/mastodon.ts
+++ b/src/lib/server/mastodon.ts
@@ -1,5 +1,6 @@
 import { mastodon } from '$lib/config';
 import { fetchJson, sanitizeHtml } from './http';
+import { mapImage } from './image-map';
 import type { Post } from '$lib/types';
 
 interface MastodonMedia {
@@ -46,7 +47,7 @@ export async function getMastodonPosts(count = mastodon.maxPosts): Promise<Post[
 				.filter((media) => media.url)
 				.map((media) => ({
 					url: media.url as string,
-					previewUrl: media.preview_url ?? null,
+					previewUrl: media.preview_url ? mapImage(media.preview_url) : mapImage(media.url as string),
 					description: media.description ?? ''
 				})),
 			repliesCount: status.replies_count ?? 0,
diff --git a/src/lib/server/peertube.ts b/src/lib/server/peertube.ts
index 7eb243d..b2abe66 100644
--- a/src/lib/server/peertube.ts
+++ b/src/lib/server/peertube.ts
@@ -1,5 +1,6 @@
 import { peertube } from '$lib/config';
 import { fetchJson, markdownToHtml, sanitizeHtml } from './http';
+import { mapImage } from './image-map';
 import type {
 	DownloadOption,
 	SearchEntry,
@@ -44,11 +45,11 @@ function formatVideos(videos: PtVideo[] = []): VideoSummary[] {
 	return videos.map((video) => ({
 		id: video.uuid,
 		title: video.name,
-		thumbnail: video.previewPath ? `${BASE}${video.previewPath}` : '/images/logo.png',
+		thumbnail: video.previewPath ? mapImage(`${BASE}${video.previewPath}`) : '/images/logo.png',
 		duration: video.duration,
 		channel: video.channel?.displayName ?? '',
 		channelAvatar: video.channel?.avatars?.[0]?.path
-			? `${BASE}${video.channel.avatars[0].path}`
+			? mapImage(`${BASE}${video.channel.avatars[0].path}`)
 			: '/images/logo.png',
 		views: video.views,
 		date: video.publishedAt,
diff --git a/static/images/episodes/annu-kute-ced-s01-e01_feed.webp b/static/images/episodes/annu-kute-ced-s01-e01_feed.webp
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