Lumina

Lumina is a lightweight desktop environment, free of dbus and *kit, designed to require as few system dependencies and requirements as possible.

Emerge
Recommendation is to use version 1.2.0 or higher. As long it isn't marked stable it should be added to package.keywords.

Configuration
A configuration file is installed in. Lumina also has a bunch of own configuration tools.

Invocation
Lumina provides its own replacement for to be started from console.

Alternatively it can be added to the file for being started via  or a display manager