ca-certificates : Common CA Certificates PEM files ( https://packages.debian.org/sid/ca-certificates )
colordiff : Colorizes output of diff ( https://www.colordiff.org/ )
screen : screen manager with VT100/ANSI terminal emulation ( https://www.gnu.org/software/screen/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a srcshelton
For Paludis use this rsync : rsync://gentoo.zugaina.org/srcshelton-portage
If you have a problem : ycarus(-at-)zugaina.org