genext2fs : ext2 filesystem generator for embedded systems ( http://genext2fs.sourceforge.net/ )
squashfs-tools : Tool for creating compressed filesystem type squashfs ( http://squashfs.sourceforge.net )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a AlexandreFournier
For Paludis use this rsync : rsync://gentoo.zugaina.org/AlexandreFournier-portage
If you have a problem : ycarus(-at-)zugaina.org