gistfile0.txt

diff --git i/packages/playground/data-liberation/blueprints-library w/packages/playground/data-liberation/blueprints-library
index 32b937d7..d7b184aa 160000
--- i/packages/playground/data-liberation/blueprints-library
+++ w/packages/playground/data-liberation/blueprints-library
@@ -1 +1 @@
-Subproject commit 32b937d775b3df72997393b81efa068370ec81ca
+Subproject commit d7b184aa514bfde2ada499c78e9b7a54ba4352b2
diff --git i/packages/playground/website/src/components/ensure-playground-site/ensure-playground-site-is-selected.tsx w/packages/playground/website/src/components/ensure-playground-site/ensure-playground-site-is-selected.tsx
index 9d8cc329..b315d232 100644
--- i/packages/playground/website/src/components/ensure-playground-site/ensure-playground-site-is-selected.tsx
+++ w/packages/playground/website/src/components/ensure-playground-site/ensure-playground-site-is-selected.tsx
@@ -2,6 +2,7 @@ import { useEffect } from 'react';
 import { resolveBlueprintFromURL } from '../../lib/state/url/resolve-blueprint-from-url';
 import { useCurrentUrl } from '../../lib/state/url/router-hooks';
 import { opfsSiteStorage } from '../../lib/state/opfs/opfs-site-storage';
+import { persistTemporarySite } from '../../lib/state/redux/persist-temporary-site';
 import {
 	siteListingLoaded,
 	selectSiteBySlug,
@@ -69,19 +70,7 @@ export function EnsurePlaygroundSiteIsSelected({
 			}
 
 			// If the site slug is provided, try to load the site.
-			if (requestedSiteSlug) {
-				// If the site does not exist, redirect to a new temporary site.
-				if (!requestedSiteObject) {
-					// @TODO: Notification: 'The requested site was not found. Redirecting to a new temporary site.'
-					logger.log(
-						'The requested site was not found. Redirecting to a new temporary site.'
-					);
-					const currentUrl = new URL(window.location.href);
-					currentUrl.searchParams.delete('site-slug');
-					redirectTo(currentUrl.toString());
-					return;
-				}
-
+			if (requestedSiteSlug && requestedSiteObject) {
 				dispatch(setActiveSite(requestedSiteSlug));
 				return;
 			}
@@ -108,19 +97,28 @@ export function EnsurePlaygroundSiteIsSelected({
 			} catch (e) {
 				logger.error('Error resolving blueprint:', e);
 			}
+
+			const metadata = {
+				originalBlueprint: blueprint,
+			};
+			if ( requestedSiteSlug ) {
+				metadata.name = requestedSiteSlug;
+			}
+
 			// Create a new site otherwise
 			const newSiteInfo = await dispatch(
 				setTemporarySiteSpec({
-					metadata: {
-						originalBlueprint: blueprint,
-					},
+					metadata,
 					originalUrlParams: {
 						searchParams: parseSearchParams(newUrl.searchParams),
 						hash: newUrl.hash,
 					},
 				})
 			);
-			dispatch(setActiveSite(newSiteInfo.slug));
+			await dispatch(setActiveSite(newSiteInfo.slug));
+			if ( requestedSiteSlug ) {
+				dispatch(persistTemporarySite(requestedSiteSlug, 'opfs'));
+			}
 		}
 
 		ensureSiteIsSelected();