Unified Linux Wine Game Launcher (UMU) gets a first official release

it's a tool that various apps can use to run Windows games on Linux, acting as a copy of the Steam Runtime Tools and Steam Linux Runtime that Valve uses for Proton to allow Proton to properly run outside of Steam.

I'm installing this now because I didn't know that I needed it.

umu, what's this?

Jokes aside, I actually needed this since I used to run Proton just like WINE but after some version many games didn't work by just changing "wine" to "proton".