I know nothing about anything, certainly not about react, but

    bun add react @blender-ui/react @blender-ui/native
    bun x bui build app.jsx

    import { render } from '@blender-ui/react';
    render(<window title="Is this real?"><label>Hello World</label></window>);

gives me a 7mb executable?! I'm in shock. Maybe it's because I don't know a lot, but this is the most simple way to get from nothing to a GUI I have ever seen. This is, if not the dream, certainly a dream of mine.