These ebuilds come from http://sourceforge.net/projects/gechi-overlay/.
If you have some problems, go to the official site first.
eselect-bashrcng : Utility to change the Portage bashrcng ( http://gechi-overlay.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gechi
For Paludis use this rsync : rsync://gentoo.zugaina.org/gechi-portage
If you have a problem : ycarus(-at-)zugaina.org