These ebuilds come from http://code.google.com/p/arcon/.
If you have some problems, go to the official site first.
razor-qt : Razor-qt is easy-to-use and fast desktop environment based on Qt technologies. ( http://razor-qt.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a arcon
For Paludis use this rsync : rsync://gentoo.zugaina.org/arcon-portage
If you have a problem : ycarus(-at-)zugaina.org