These ebuilds come from http://git.overlays.gentoo.org/gitweb/?p=dev/suka.git;a=summary.
If you have some problems, go to the official site first.
gnome-boxes : Simple GNOME 3 application to access remote or virtual systems ( https://live.gnome.org/Design/Apps/Boxes )
sushi : A quick previewer for Nautilus, the GNOME file manager ( http://git.gnome.org/browse/sushi )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a suka
For Paludis use this rsync : rsync://gentoo.zugaina.org/suka-portage
If you have a problem : ycarus(-at-)zugaina.org