I’d say supabase for the backend. Super quick to get set up, self hostable if you want and the dev velocity is pretty high. For the front end, I’d go with react

I’d say supabase for the backend. Super quick to get set up, self hostable if you want and the dev velocity is pretty high. For the front end, I’d go with react-native and react-native-web. If you are building something very “app” like on the web and are going the SPA route, a single shared codebase using react-native and react-native-web is the way to go. If the web site is going to be more of a traditional style, I’d go with next.js but still use react-native-web to share components with the native side.