Can cassowary work with a second GPU - passthrough?

[buzuddha]

Is your feature request related to a problem? Please describe. I'm frustrated by choppy rendering of the MS apps. It's not that bad, but I'm guessing it'd be faster if they had access to a dedicated GPU.

Describe the solution you'd like Could cassowary work in such a way that I passthrough a second GPU to the VM, which can render the windows, and then these are piped back through spice/other to Linux/GNOME?

Describe alternatives you've considered I'm using virtio+openGL and 3D rendering, but it's still a tidbit choppy.

Additional context I have experience with GPU passthrough, but don't exactly understand what's going on under the hood with spice. Happy to help develop this!