texlive-core : A complete TeX distribution ( https://tug.org/texlive/ )
xournalpp : Handwriting notetaking software with PDF annotation support ( https://github.com/xournalpp/xournalpp )
zathura : A highly customizable and functional document viewer ( https://pwmt.org/projects/zathura/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a d-e-s-o
For Paludis use this rsync : rsync://gentoo.zugaina.org/d-e-s-o-portage
If you have a problem : ycarus(-at-)zugaina.org