mars-mips : MARS is a lightweight IDE for programming in MIPS assembly language ( https://courses.missouristate.edu/KenVollmar/MARS/index.htm )
packettracer : Cisco's packet tracer ( https://www.netacad.com/about-networking-academy/packet-tracer )
snapd : Service and tools for management of snap packages ( http://snapcraft.io/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a prototype99
For Paludis use this rsync : rsync://gentoo.zugaina.org/prototype99-portage
If you have a problem : ycarus(-at-)zugaina.org