zfs-backup : ZFS backup via zfs send/recv over ssh ( https://github.com/adaugherity/zfs-backup )
zfstools : ZFS scripts including zfs-auto-snapshot, clone of OpenSolaris auto snapshotting ( https://github.com/bdrewery/zfstools )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a graaff
For Paludis use this rsync : rsync://gentoo.zugaina.org/graaff-portage
If you have a problem : ycarus(-at-)zugaina.org