Yes but the 'backend' (the client, but the non-presentational bit) is Rust; it'd be there you'd want to do this sort of synchronisation or anything to do with state/database. You could absolutely shoe-horn it in, it just wouldn't be the way you'd expect it to work or feel particularly right/supported.

Got it, that makes sense. Probably could spin up Node process but of course that requires having Node installed or bundled with the app.