I’m not sure where AMD started allowing PCI and USB VM hardware pass through. But Intel 7xxx and up allow for it. Which really opens up what you can do. I have a tiny HP business unit with a 7th gen i5, 8GB RAM, and 256GB nvme sans psu. I picked up for 60 bucks on eBay plus shipping and taxes. PSU was about 16 dollars.

Proxmox as a hypervisor, patching my zwave and ZigBee USB dongle through to HA. HA running on 2 core and 4GB. I passed the rest of the CPU, RAM, SSD, mouse, keyboard and display off to Haiku. For a nice graphical local admin console. I could easily split off more from haiku and get a 3rd setup running under proxmox. As haiku doesn’t necessarily need more than half a GB of RAM and 20 to 30 GB of disk space and 1 core really.