Yeah that works, because you get access to the native window. I'm adding native macOS elements to the Ebou window, for example. I'm also adding native window effects. You could reasonably easy add a wgpu native view I guess. What's a bit more difficult would be to have it position correctly (because you'd need to know the locations of the html elements, and you can only query them via the `eval` js routine, but that would also work).