[skazazes]

I actually use Proxmox on my main PC. Ryzen 5950x, 64GB RAM, RTX 4070, AMD 6500XT. The two GPU's are each passed to a Windows and Debian VM respectively, and each also gets a USB card passed for convenience. I run half a dozen other VM's off of it hosting various portions of the standard homelab media/automation stacks.

Anecdotally, it's a very effective setup when combined with a solid KVM. I like keeping my main Debian desktop and the hypervisor separate because it keeps me from borking my whole lab with an accidental rm -rf.

It is possible to pass all of a systems GPU's to VM's, using exclusively the web interface/shell for administration, but it can cause some headaches when there are issues unrelated to the system itself. For example, if I lose access to the hypervisor over the network, getting the system back online can be a bit of a PITA as you can no longer just plug it into a screen to update any static network configuration. My current solution to this is enabling DHCP on Proxmox and managing the IP with static mappings at the router level.

There are a few other caveats to passing all of the GPU's that I could detail further, but as a low impact setup (like running emulators on a TV) its should work fairly well. I have also found that Proxmox plays well with mini PC's. Besides the desktop, I run it on an Intel NUC as well as a Topton mini PC with a bunch of high-speed NICS as a router. I cluster them without enabling the high availability features in order to unify the control plane for the three systems into one interface. It all comes together into a pretty slick system