You might already typing the obvious answer: "Use the Steam overlay or the button you binded to start recording!" But it doesn't apply here. This is an old, old game, Fallout 2 to be exact, and I'm thinking of running a parody channel where I pretend to be my favorite companion, Skynet. But I need to record footage of Skynet doing battles for the background, as it'll be an in-character commentary channel, and I can't record it using Steam. So I need an app that records on LINUX. Thanks in advance! Also I will edit the post including all of the footage I make for public use and upload it to [Archive.org](http://Archive.org) since there's no Fallout 2 Skynet footage (not a suprise, kind of a weird fav character pick, but I really, really like the concept of Robobrains) Edit: The OS is crostini btw