duplicacy : A new generation cloud backup tool ( https://duplicacy.com )
restic : A backup program that is fast, efficient and secure ( https://restic.github.io )
zvault : A highly efficient deduplicating backup solution ( https://github.com/dswd/zvault )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a frabjous
For Paludis use this rsync : rsync://gentoo.zugaina.org/frabjous-portage
If you have a problem : ycarus(-at-)zugaina.org