What needs more work (or is completely missing):

* Minimize
* Better z-order and activation handling
* Keyboard layout support
* Grabs
* GTK menu mouse handling bug (cannot click to select items)
* Multiple displays
* Vulkan. Note that that there is another effort at
  https://github.com/varmd/wine-wayland/ focusing solely on vulkan.
  My hope is that we will be able to share efforts going forward.