Arch Linux is a general purpose linux distribution that can be
molded to do just about anything. It is fast, lightweight, flexible, and most
of the parts under the hood are quite simple to understand and tweak, which can
make it a good distro to "learn the ropes" on.
Arch Linux uses the Pacman package manager, which couples a simple binary
package format with an easy-to-use build system, allowing the users to easily
manage and customize their packages, whether they be official Arch packages or
the user's own homegrown ones. The repository system allows users to build and
maintain their own custom package repositories, which encourages community
growth and contribution.