Debian (/ˈdɛbiən/), also known as DebianGNU/Linux, is a free and open source Linux distribution, developed by the Debian Project, which was established
virtual machines, as well as live or cold drag-and-drop migration of VMs between hosts. ProxmoxVirtualEnvironment – an open-source virtualization management
based on the Debian Linux distribution, with some extended features, such as out-of-the-box ZFS support and Linux kernel 5.4 LTS. Proxmox Backup Server