Depends on what your requirements are. If it "modern" design (let's not start the millionth discussion on what native/modern design is here), that is also suppo

Depends on what your requirements are. If it "modern" design (let's not start the millionth discussion on what native/modern design is here), that is also supported on mobile/web, then I would say go with flutter as UI and something like rust as your main language to write your business logic in [1]. You can even use regular c++ with their FFI [2]. [1] https://github.com/fzyzcjy/flutter_rust_bridge https://github.com/fzyzcjy/flutter_rust_bridge [2] https://docs.flutter.dev/development/platform-integration/c-interop https://docs.flutter.dev/development/platform-integration/c-...