I would like to this become well supported, a while ago I wanted to have a Python codebase that would use the native widgets of each OS (you can program cocoa with python, although I tested it barely) and being able to have the same python codebase in all OSs with just display wrappers would have been nice. In the end I decided using Swift and C# for what I needed, but still would have preferred using a single python project for both targets.