LGM-OS is a one-developer NAS OS on Debian, free while the launch campaign lasts
A NAS OS from a single developer that installs Debian 12 on any 64-bit PC and runs everything from a browser: Btrfs or ZFS pools, 31 curated apps plus a converted community catalog, KVM virtual machines, cameras, versioned backups and a WireGuard VPN. Two months old, 252 versions deep, and an outside audit already reshaped 2.0.