"Changing out the 3d driver to be pluggable in a backend-agnostic way will be extremely hard/annoying to code around." I hear that the Gallium3D project has do

"Changing out the 3d driver to be pluggable in a backend-agnostic way will be extremely hard/annoying to code around." I hear that the Gallium3D project has done a substantial part of that work already: https://en.wikipedia.org/wiki/Gallium3D https://en.wikipedia.org/wiki/Gallium3D