[tatref]

Seems like this runs qemu inside the container.

[xaduha]

Yeah, pretty run-of-the-mill as far as similar projects go. Maybe a tad over-complicated to put it mildly.

I've done something like this except not with KVM, but with headless Xorg+PulseAudio+Wine to have Hearthstone with sound over RDP.

Did it run? Yes. Did it run like crap? Absolutely!