When it comes to a custom NAS setup, you’ve got plenty of choices for the operating system. There’s OpenMediaVault for underpowered devices, Unraid for premium users, and even good ol’ Proxmox, once you arm it with the right packages. However, TrueNAS Scale is my favorite NAS-centric distribution by a long shot, thanks to its top-notch performance, free nature, data protection services, and ZFS support.