Gentoo

Gentoo is a source-based distribution of Linux. This distribution uses a rolling release update system. Unlike other Linux distributions, it uses a package management system called Portage that compiles packages from source code. This Linux distribution was named after the Gentoo penguin. It was chosen due to reflecting the possible speed improvements of the machine optimization, that is a major feature of this distribution.

Installation
Similarly to what is seen in Arch Linux, Gentoo has no desktop environment nor graphical installer provided. Thus requiring the user to install it from the ground up. Both distributions have identical installation methods, but on how packages are supposed to be installed are different between the two.