@Roomba
@lemmy.fgilcc.euLooks fine. You might save some money on the PSU by choosing another one from A tier here and by lowering the wattage. ~800W is more than enough for that build and for the future
Is your country not supported in https://pcpartpicker.com/?
If you did this you might not know about the Proxmox Helper Scripts: https://tteck.github.io/Proxmox/
It has a bunch of scripts to help setup and maintain containers. This use case should be covered by the "Proxmox VE LXC Updater" in "Proxmox VE tools" group.