+[Gentoo | http://www.gentoo.org/] is a source based LinuxDistribution, sometimes also called a meta-distribution. It has a system called Portage which attempts to combine the best of PackageManagement from LinuxDistribution~s like [Debian] with the power of [BSD] [Port]s. There are (almost) no binary packages, instead, everything is compiled from SourceCode, which can take a long time . This means you have total control and lots of room to tweak your system, though it is of sometimes doubtful benefit and requires GHz-class systems to be bearable.