Arch Linux is a Linux distribution for computers with x86-64 processors. Arch Linux adheres to the KISS principle ("Keep It Simple, Stupid") and is focused on simplicity, modernity, pragmatism, user centrality, and versatility. In practice, this means the project attempts to have minimal distribution-specific changes, minimal breakage with updates, pragmatic over ideological design choices and focuses on user-centrality[clarification needed] rather than user-friendliness.

A package manager written specifically for Arch Linux, Pacman, is used to install, remove and update software packages. Arch Linux uses a rolling release model, meaning there are no "major releases" of completely new versions of the system; a regular system update is all that is needed to obtain the latest Arch software; the installation images released every month by the Arch team are simply up-to-date snapshots of the main system components.