inputplumber : Open source input manager for Linux ( https://github.com/ShadowBlip/InputPlumber )
lutris-ui : Simple pygame based Lutris frontend ( https://github.com/bell07/lutris-ui )
opengamepadui-bin : Game launcher and overlay designed with a gamepad native experience in mind. ( https://opengamepadui.readthedocs.io )
pegasus : Graphical frontend for browsing your game library ( https://pegasus-frontend.org/ )
skyscraper : A powerful and versatile yet easy to use game scraper ( https://github.com/muldjord/skyscraper )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a bell07
For Paludis use this rsync : rsync://gentoo.zugaina.org/bell07-portage
If you have a problem : ycarus(-at-)zugaina.org