nvidia-drivers : NVIDIA X11 userspace libraries and applications ( https://www.nvidia.com/ )
nvidia-userspace : NVIDIA X11 userspace libraries and applications ( http://www.nvidia.com/ http://www.nvidia.com/Download/Find.aspx )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a sabayon-distro
For Paludis use this rsync : rsync://gentoo.zugaina.org/sabayon-distro-portage
If you have a problem : ycarus(-at-)zugaina.org