Essentially its own system for launching games via the proton layer. I can’t really explain it well, but the readme on the github will explain what it does.
Thank you friend. Apparently you still need to launch it through Lutris, but I think it can be used on all launchers or something like that, like Heroic Launcher and others.
Everyone can use + contribute to the same protonfixes, no more managing individual install scripts per launcher
Everyone can run their games through Proton just like a native Steam game
No Steam or Steam binaries required
A unified online database of game fixes (protonfixes)