Makes sense, yeah it definitely takes more system resources vs storage for a personal server. I host for myself and some friends, so it’s really just thumbnails that take up space.

For reference, I’m hosting on an r220 w/ a proxmox VM allocated as above. I think you could probably get away with less, but not too sure. Your idea with the mini PC would probably work, or you could get a cheap dell Optiplex on eBay and see if it runs well