diff --git a/apps/matrix/apps/web/src/routes/(app)/+layout.ts b/apps/matrix/apps/web/src/routes/(app)/+layout.ts
new file mode 100644
index 000000000..517d3e87a
--- /dev/null
+++ b/apps/matrix/apps/web/src/routes/(app)/+layout.ts
@@ -0,0 +1,4 @@
+// Disable SSR for all (app) routes
+// matrix-js-sdk requires browser APIs and shared-ui uses Svelte 5 runes
+// that need client-side compilation
+export const ssr = false;