goverlay-bin : GOverlay is a Graphical UI to help manage Linux overlays. (binary version) ( https://github.com/benjamimgois/goverlay )
mangohud : A Vulkan/OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more. ( https://github.com/flightlessmango/MangoHud )
mcpelauncher-ui-qt : mcpelauncher-linux UI ( https://github.com/minecraft-linux/mcpelauncher-ui-manifest )
sidequest-bin : An open app store for VR devices such as the Oculus Quest 2 ( https://sidequestvr.com/ )
vkbasalt : A vulkan post processing layer ( https://github.com/DadSchoorse/vkBasalt )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a thegreatmcpain
For Paludis use this rsync : rsync://gentoo.zugaina.org/thegreatmcpain-portage
If you have a problem : ycarus(-at-)zugaina.org