I can see a scenario where we no longer need to dedicate a physical GPU to a VM with passthru (say to use a windows game/program which cannot run on Linux) and instead split the GPU between the host Linux and the VM.

I wonder if this can be done dynamically, ie. you do that only when you start the VM.

Ah the joys of compiling C++ with a thousand definitions of string. I never used this project, but I guess a cast to the expected type would make the compilation work.

Alternatively, this looks related to logging which maybe you can get away with disabling it if not needed.