I had an old Dell 7060 micro with no purpose and scavenged another sdd and some memory from a now disused tv media server. The Dell is now running proxmox with mirrored zfs drives and 20GB ram. It coped well with a stress-ng test but I am waiting on a heatsink for the nvme drive because that gets a bit toasty under stress (76C). When all is installed and stable I will let the new guy join my proxmox cluster as #3.