These are the available UI restore options from a NethServer on a contabo vps. They provide snapshots via web UI and I just want to host Nethserver so I don’t need the virtualization layer but as @Andy_Wismer mentioned, there should be packages by many providers.
This way you could easily restore a folder from /var/lib/nethserver/. For example mails are in /var/lib/nethserver/vmail or the vhosts are in /var/lib/nethserver/vhost or the mariadb databases are in /var/lib/nethserver/backup/mysql.