DragonOS
DragonOS is a Lubuntu-based desktop distribution which is focused on software defined radio (SDR). The distribution provides a pre-installed suite of the most powerful and accessible open source SDR software.
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Besgnulinux
Besgnulinux is a lightweight, desktop Linux distribution based on Debian's "stable" branch. Using the JWM window manager, it is designed to be fast, lightweight and easy to use, suitable for older and low-specification computers.