ME
poncho-overlay 
This is a Gentoo overlay for packages not in the main tree.
The ebuilds are written by myself or copied from other peoples overlays.
The poncho-overlay isn't in layman’s list of overlays. To add it manually, drop
https://raw.github.com/MeisterP/poncho-overlay/master/poncho-overlay.xml
into /etc/layman/overlays/ and run layman -a poncho
Or you can use eselect repository add poncho git https://github.com/MeisterP/gnome-overlay.git.