Arch Linux is an independent and original GNU/Linux distribution that adheres to the Keep It Simple Stupid (KISS) principle in its design. The project expects its users to have a hands on role in installing and maintaining the distribution. As such it has no installer or any GUI tools of any kind for administering the system. But it does have a highly regarded wiki that guides users in installation and all other aspcts of the system. It's package manager -- pacman, and its user repository -- the Arch User Repository are also highly regarded, pacman for its simple effectiveness and the AUR for availability of software. It uses a rolling release model and makes new upstream software available quickly.