If you see this red page, port 3004 is serving static files.

The Next.js app at / may still be compiling on first load — wait for “Compiled” in the terminal, then open the home link again. Prefer Chrome or Edge if the editor’s preview stays white.

Local dev only: if the homepage is stuck, open /?cx_unlock=1 once — it skips auto preview and clears a common blank-screen state.