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.
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ArchBANG Linux
ArchBang Linux is a lightweight distribution based on Arch Linux. Using the labwc Wayland compositor, it is fast, up-to-date and suitable for both desktop and portable systems.