@Vierkantor I've successfully used Kazam for this.
@neal Unfortunately, I'm getting only like 1fps when my program starts running (kazam still gets 4 full CPU cores, which I would hope is enough!)
@Vierkantor Oof, good luck figuring something out.
@Vierkantor If memory serves, it does a little better recording full screen than partial screens.
@neal That looks like exactly the interface I was looking for, thanks!