Dopes anyone know any good mobile app frameworks that are open source. I would like to be able to develop from windows, but move over to a mac (I own one) when I build for IOS. I want raw NATIVE ui provided by SwiftUI and whatever android has (material design I think).


I think it depends a lot on what you are building.
For bigger projects and apps leveraging the mobile platform I’m 100% with you.
These kinds of frameworks can still be a good fit for a quick MVP demo, as a stepping stone for porting an existing web app, or if all you really want is a glorified web view (or are PWAs enough for the last one these days?)
Specifically RN is in terrible shape and IMO something to avoid though.