SparkyLinux
SparkyLinux is a set of Debian-based desktop Linux distributions. The project provides separate editions with KDE Plasma, LXQt, MATE and Xfce desktops, as well as a lightweight flavour featuring the Openbox window manager.
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OmegaLinux
OmegaLinux is an Arch-based, rolling-release Linux distribution featuring the lightweight LXDE desktop. It is suitable for installation on older computers with as little as 1 GB of memory.