These ebuilds come from http://overlays.gentoo.org/dev/je_fro.
If you have some problems, go to the official site first.
mactel-linux-sources : Sources for the Linux kernel with mactel-linux and gentoo patches. ( http://www.kernel.org einfo "${HOMEPAGE} )
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