Hi, I watched the presentation of Project Wakefield:
https://youtu.be/5gfZDx6IOD4?si=vusIcnKGFLzO8IfG Doing it on JavaFX would be much much easier. Rendering thru es2 works by just replacing GLX with EGL. Then the glass events we just replace GTK with Wayland-client. Project Wakefield came with the same conclusion - gtk4 is a no-go - mostly because sharing the rendering with GTK is hard. -- Thiago