These ebuilds come from http://svn.engelkotzen.net/public/devnull.
If you have some problems, go to the official site first.
lcdproc : Client/Server suite to drive all kinds of LCD (-like) devices ( http://lcdproc.org/ )
rbutil : The Rockbox Utility, all you need for installing and managing rockbox ( http://www.rockbox.org/twiki/bin/view/Main/RockboxUtility )
screen : Screen is a full-screen window manager that multiplexes a terminal between several processes ( http://www.gnu.org/software/screen/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org