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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Bodhi Linux
Bodhi Linux is an elegant and lightweight Debian/Ubuntu-based distribution featuring Moksha, an Enlightenment-17-based desktop environment. The project takes a decidedly minimalist approach by offering modularity, high levels of customisation, and choice of themes.