GhostBSD
GhostBSD is a user-friendly desktop operating system based on FreeBSD. Its default desktop is MATE, but a separate community edition with Xfce is available too.
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AerynOS
AerynOS is an independently-developed, rolling-release Linux distribution designed for general desktop use. Its main features include the GNOME desktop, a custom package manager called "moss", atomic updates with rollback options, a package build system called "boulder", and smart boot management with complex EFI configuration through a utility called "blsforme".