I3

i3 is Article description::a minimalist [[window manager, focusing on keyboard commands to manipulate windows.]] By default all windows are in full-screen in order to best maximize the use of the screen and have less fiddling with positioning. Even with the  USE flag enabled its installed size is less than 1.6 MB. It also uses less than 10 MB of RAM under normal operating conditions.

Emerge
The basic package is i3 itself

dmenu
It is also assumed that dmenu will be emerged. Available USE flags include: