Q4OS
Q4OS is a Debian-based desktop Linux distribution offering a choice of a classic-style user interface (Trinity) and a modern desktop environment (KDE Plasma). The project also develops various utilities, such as Desktop Profiler and Software Center, as well as installers for third-party applications.
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GNOME OS
GNOME OS is an experimental, immutable Linux distribution that ships the latest in-development GNOME desktop, core applications and stack. It serves as a reference for developers and testers.