I'm surprised I haven't heard of rr before, it sounds like it could be a game changer for debugging many types of problems. How long has this project existed/b

I'm surprised I haven't heard of rr before, it sounds like it could be a game changer for debugging many types of problems. How long has this project existed/been usable ? Am I correct in understanding that rr can be used with any application (ie. the application doesn't have to be built specifically to support it) ? That's the impression the usage introduction on the website gives: https://rr-project.org/ https://rr-project.org/.