diff --git a/sites/svelte.dev/src/lib/components/ReplWidget.svelte b/sites/svelte.dev/src/lib/components/ReplWidget.svelte
deleted file mode 100644
index bba3f4aa95..0000000000
--- a/sites/svelte.dev/src/lib/components/ReplWidget.svelte
+++ /dev/null
@@ -1,95 +0,0 @@
-<script>
-	import { browser } from '$app/environment';
-	import { process_example } from '$lib/utils/examples';
-	import Repl from '@sveltejs/repl';
-	import { theme } from '@sveltejs/site-kit/stores';
-	import { onMount } from 'svelte';
-
-	export let version = '4';
-	export let gist = null;
-	export let example = null;
-	export let embedded = false;
-
-	/** @type {import('@sveltejs/repl').default} */
-	let repl;
-	let name = 'loading...';
-
-	let mounted = false;
-
-	async function load(gist, example) {
-		if (version !== 'local') {
-			fetch(`https://unpkg.com/svelte@${version}/package.json`)
-				.then((r) => r.json())
-				.then((pkg) => {
-					version = pkg.version;
-				});
-		}
-
-		if (gist) {
-			fetch(`/repl/api/${gist}.json`)
-				.then((r) => r.json())
-				.then((data) => {
-					const { description, components } = data;
-
-					name = description;
-
-					const files = Object.keys(components)
-						.map((file) => {
-							const dot = file.lastIndexOf('.');
-							if (!~dot) return;
-
-							const source = components[file].content;
-
-							return {
-								name: file.slice(0, dot),
-								type: file.slice(dot + 1),
-								source
-							};
-						})
-						.filter((x) => x.type === 'svelte' || x.type === 'js')
-						.sort((a, b) => {
-							if (a.name === 'App' && a.type === 'svelte') return -1;
-							if (b.name === 'App' && b.type === 'svelte') return 1;
-
-							if (a.type !== b.type) return a.type === 'svelte' ? -1 : 1;
-
-							return a.name < b.name ? -1 : 1;
-						});
-
-					repl.set({ files });
-				});
-		} else if (example) {
-			const files = process_example(
-				(await fetch(`/examples/api/${example}.json`).then((r) => r.json())).files
-			);
-
-			repl.set({
-				files
-			});
-		}
-	}
-
-	onMount(() => {
-		mounted = true;
-	});
-
-	$: if (mounted) load(gist, example);
-
-	$: if (embedded) document.title = `${name} • Svelte REPL`;
-
-	$: svelteUrl =
-		browser && version === 'local'
-			? `${location.origin}/repl/local`
-			: `https://unpkg.com/svelte@${version}`;
-</script>
-
-{#if browser}
-	<Repl
-		bind:this={repl}
-		autocomplete={embedded}
-		{svelteUrl}
-		embedded
-		relaxed
-		previewTheme={$theme.current}
-	/>
-{/if}
diff --git a/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.server.js b/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.server.js
new file mode 100644
index 0000000000..5d80a583f3
--- /dev/null
+++ b/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.server.js
@@ -0,0 +1,16 @@
+import { error } from '@sveltejs/kit';
+
+export async function load({ fetch, params, url }) {
+	const res = await fetch(`/repl/api/${params.id}.json`);
+
+	if (!res.ok) {
+		throw error(res.status);
+	}
+
+	const gist = await res.json();
+
+	return {
+		gist,
+		version: url.searchParams.get('version') || '4'
+	};
+}
diff --git a/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.svelte b/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.svelte
new file mode 100644
index 0000000000..7592c53c24
--- /dev/null
+++ b/sites/svelte.dev/src/routes/(authed)/repl/[id]/embed/+page.svelte
@@ -0,0 +1,92 @@
+<script>
+	import { browser } from '$app/environment';
+	import { afterNavigate } from '$app/navigation';
+	import { theme } from '@sveltejs/site-kit/stores';
+	import Repl from '@sveltejs/repl';
+	import { mapbox_setup } from '../../../../../config.js';
+	import { onMount } from 'svelte';
+
+	export let data;
+
+	let version = data.version;
+
+	/** @type {import('@sveltejs/repl').default} */
+	let repl;
+
+	function update_query_string(version) {
+		const params = [];
+
+		if (version !== 'latest') params.push(`version=${version}`);
+
+		const url =
+			params.length > 0
+				? `/repl/${data.gist.id}/embed?${params.join('&')}`
+				: `/repl/${data.gist.id}/embed`;
+
+		history.replaceState({}, 'x', url);
+	}
+
+	$: if (typeof history !== 'undefined') update_query_string(version);
+
+	onMount(() => {
+		if (data.version !== 'local') {
+			fetch(`https://unpkg.com/svelte@${data.version || '4'}/package.json`)
+				.then((r) => r.json())
+				.then((pkg) => {
+					version = pkg.version;
+				});
+		}
+	});
+
+	afterNavigate(() => {
+		repl?.set({
+			files: data.gist.components
+		});
+	});
+
+	$: svelteUrl =
+		browser && version === 'local'
+			? `${location.origin}/repl/local`
+			: `https://unpkg.com/svelte@${version}`;
+
+	$: relaxed = data.gist.relaxed || (data.user && data.user.id === data.gist.owner);
+</script>
+
+<svelte:head>
+	<title>{data.gist.name} • REPL • Svelte</title>
+
+	<meta name="twitter:title" content="{data.gist.name} • REPL • Svelte" />
+	<meta name="twitter:description" content="Cybernetically enhanced web apps" />
+	<meta name="Description" content="Interactive Svelte playground" />
+</svelte:head>
+
+<div class="repl-outer">
+	{#if browser}
+		<Repl
+			bind:this={repl}
+			{svelteUrl}
+			{relaxed}
+			injectedJS={mapbox_setup}
+			showModified
+			showAst
+			previewTheme={$theme.current}
+			embedded
+		/>
+	{/if}
+</div>
+
+<style>
+	.repl-outer {
+		position: fixed;
+		top: 0;
+		left: 0;
+		width: 100%;
+		height: 100%;
+		background-color: var(--sk-back-1);
+		overflow: hidden;
+		box-sizing: border-box;
+		--pane-controls-h: 4.2rem;
+		display: flex;
+		flex-direction: column;
+	}
+</style>
diff --git a/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.js b/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.js
deleted file mode 100644
index b27fec14d4..0000000000
--- a/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.js
+++ /dev/null
@@ -1,8 +0,0 @@
-export function load({ url }) {
-	const query = url.searchParams;
-	return {
-		version: query.get('version') || '3',
-		gist: query.get('gist'),
-		example: query.get('example')
-	};
-}
diff --git a/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.server.js b/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.server.js
new file mode 100644
index 0000000000..d6f8ab11bb
--- /dev/null
+++ b/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.server.js
@@ -0,0 +1,14 @@
+import { redirect } from '@sveltejs/kit';
+
+export function load({ url }) {
+	if (!url.searchParams.has('gist')) {
+		throw redirect(301, '/repl/hello-world/embed');
+	} else {
+		const searchParamsWithoutGist = new URLSearchParams(url.searchParams);
+		searchParamsWithoutGist.delete('gist');
+		throw redirect(
+			301,
+			`/repl/${url.searchParams.get('gist')}/embed?${searchParamsWithoutGist.toString()}`
+		);
+	}
+}
diff --git a/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.svelte b/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.svelte
deleted file mode 100644
index 43fed8a1cb..0000000000
--- a/sites/svelte.dev/src/routes/(authed)/repl/embed/+page.svelte
+++ /dev/null
@@ -1,36 +0,0 @@
-<script>
-	import { browser } from '$app/environment';
-	import ReplWidget from '$lib/components/ReplWidget.svelte';
-
-	export let data;
-</script>
-
-<svelte:head>
-	<title>REPL • Svelte</title>
-
-	<meta name="twitter:title" content="Svelte REPL" />
-	<meta name="twitter:description" content="Cybernetically enhanced web apps" />
-	<meta name="Description" content="Interactive Svelte playground" />
-</svelte:head>
-
-<div class="repl-outer">
-	{#if browser}
-		<ReplWidget version={data.version} gist={data.gist} example={data.example} embedded={true} />
-	{/if}
-</div>
-
-<style>
-	.repl-outer {
-		position: fixed;
-		top: 0;
-		left: 0;
-		width: 100%;
-		height: 100%;
-		background-color: var(--sk-back-1);
-		overflow: hidden;
-		box-sizing: border-box;
-		--pane-controls-h: 4.2rem;
-		display: flex;
-		flex-direction: column;
-	}
-</style>
diff --git a/sites/svelte.dev/src/routes/+layout.svelte b/sites/svelte.dev/src/routes/+layout.svelte
index ab931bcd7a..9d1e6bdff9 100644
--- a/sites/svelte.dev/src/routes/+layout.svelte
+++ b/sites/svelte.dev/src/routes/+layout.svelte
@@ -33,7 +33,10 @@
 </svelte:head>
 
 <div style:display={$page.url.pathname !== '/docs' ? 'contents' : 'none'}>
-	<Shell nav_visible={$page.url.pathname !== '/repl/embed'} bind:snapshot={shell_snapshot}>
+	<Shell
+		nav_visible={$page.route.id !== '/(authed)/repl/[id]/embed'}
+		bind:snapshot={shell_snapshot}
+	>
 		<Nav slot="top-nav" title={data.nav_title} links={data.nav_links}>
 			<svelte:fragment slot="home-large">
 				<strong>svelte</strong>.dev
diff --git a/sites/svelte.dev/src/routes/_components/Example.svelte b/sites/svelte.dev/src/routes/_components/Example.svelte
index d1bc494875..e0b88cf5ed 100644
--- a/sites/svelte.dev/src/routes/_components/Example.svelte
+++ b/sites/svelte.dev/src/routes/_components/Example.svelte
@@ -1,14 +1,38 @@
 <script>
 	import IntersectionObserver from '$lib/components/IntersectionObserver.svelte';
-	import ReplWidget from '$lib/components/ReplWidget.svelte';
+	import { process_example } from '$lib/utils/examples';
+	import Repl from '@sveltejs/repl';
+	import { theme } from '@sveltejs/site-kit/stores';
 
 	export let id;
+
+	/** @type {import('@sveltejs/repl').default} */
+	let repl;
+
+	$: {
+		if (repl) {
+			fetch(`/examples/api/${id}.json`)
+				.then((r) => r.json())
+				.then((data) => process_example(data.files))
+				.then((files) => {
+					repl.set({
+						files
+					});
+				});
+		}
+	}
 </script>
 
 <div class="repl-container">
 	<IntersectionObserver once let:intersecting top={400}>
 		{#if intersecting}
-			<ReplWidget example={id} />
+			<Repl
+				bind:this={repl}
+				svelteUrl="https://unpkg.com/svelte@4"
+				relaxed
+				showAst
+				previewTheme={$theme.current}
+			/>
 		{/if}
 	</IntersectionObserver>
 </div>