Arch Linux is an open source, rolling release Linux distribution. Arch Linux is kept up-to-date by regularly updating the individual pieces of software that it comprises. It provides monthly "snapshots" which are used as installation media. Arch Linux is intentionally minimal, and is meant to be configured by the user during installation so they may add only what they require.
Pacman, a package manager written specifically for Arch Linux, is used to install, remove and update software packages. The Arch User Repository (AUR) serves as a community-driven software repository for Arch Linux and provides packages not included in the official repositories and alternative versions of packages; AUR packages can be downloaded and built manually, or installed through an AUR 'helper'.
Visit the Arch Linux website here:
https://archlinux.org/
Support the Arch Linux Developers here:
https://archlinux.org/donate/