cachefilesd : Provides a caching directory on an already mounted filesystem ( https://people.redhat.com/~dhowells/fscache/ )
cryptsetup : Tool to setup encrypted devices with dm-crypt ( https://gitlab.com/cryptsetup/cryptsetup/blob/master/README.md )
fuse : An interface for filesystems implemented in userspace ( https://github.com/libfuse/libfuse )
lvm2 : User-land utilities for LVM2 (device-mapper) software ( https://sourceware.org/lvm2/ )
mdadm : Tool for running RAID systems - replacement for the raidtools ( http://neil.brown.name/blog/mdadm )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a srcshelton
For Paludis use this rsync : rsync://gentoo.zugaina.org/srcshelton-portage
If you have a problem : ycarus(-at-)zugaina.org