Ask HN: Go to stack for an local-first mobile app in 2025?

I have more than a decade of experience in web apps (Laravel/Django) but zero experience in mobile apps. Now I’ve decided to a launch a new startup which will probably be mobile first.

What stack would you choose in 2025?

- needs to work on Android/iOS and web

- I hate overcomplicated JS frameworks but I realize it may be necessary in this case.

- the app will be pretty standard CRUD, nothing technically difficult. It will, however, have in-app messaging so realtime mobile notifications are necessary (the only reason I’m not building a Laravel web app)

- I don’t want to build an API. I like the idea of a local-first synced database like RxDb or InstantDB or WatermelonDB. However I’ve never done this before: what should I look out for? Will this work for realtime in-app messaging?

- I’m a sole dev and I’m lazy so I want a UI library, minimal backend, reducing complexity is priority #1