

I think this is what I’m leaning towards as I have very briefly played around with Proxmox on an Optiplex micro and was impressed with it.
After some more research I realized that TrueNAS probably won’t work as I have drives of various sizes pooled together so maybe UnRAID, OMV, or something else. Do you know if Proxmox’s native NAS can handle that or does it also require you to have multiples of the same drive?
I think you’ll want to look into Wake On LAN to do this. I can’t give you instructions (tried once unsuccessfully on a Windows installation) but that should be enough to get you started.