ninecolors : Select colors with proper WCAG color contrast ( https://www.ctan.org/pkg/ninecolors/ )
tabularray : Typeset tabulars and arrays with LATEX3 ( https://www.ctan.org/pkg/tabularray/ )
tectonic : A modernized, complete, embeddable TeX/LaTeX engine. ( https://github.com/tectonic-typesetting/tectonic/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a guru
For Paludis use this rsync : rsync://gentoo.zugaina.org/guru-portage
If you have a problem : ycarus(-at-)zugaina.org