graphviz : Open Source Graph Visualization Software ( https://www.graphviz.org/ https://gitlab.com/graphviz/graphviz/ )
stackHDR : Integrated processing for exposure-bracketed images ( https://github.com/TheChymera/stackHDR )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a chymeric
For Paludis use this rsync : rsync://gentoo.zugaina.org/chymeric-portage
If you have a problem : ycarus(-at-)zugaina.org