Gentoo Linux
Gentoo Linux is a versatile and fast, completely free Linux distribution geared towards developers and network professionals. Unlike other distros, Gentoo Linux has an advanced package management system called Portage.
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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.