I'm running Nextcloud as a VM on Proxmox, Proxmox running on a NUC6i5SYH, with 32GB and 1TB SSD. The Nextcloud VM had 8GB of RAM assigned, which is more than enough, I think I could get away with 4. There's only two users though, so it doesn't see a lot of Intensive usage.
It's been working like a charm for me for years already.
Basically all of my shots come out shittier than I had imagined it, which I then use for fuel of my GAS. lol