agensgraph : AgensGraph, a transactional graph database based on PostgreSQL ( https://github.com/bitnine-oss/agensgraph )
gstore : A graph-based RDF triple store ( https://github.com/Caesar11/gStore )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a youbroketheinternet
For Paludis use this rsync : rsync://gentoo.zugaina.org/youbroketheinternet-portage
If you have a problem : ycarus(-at-)zugaina.org