Old versions of software are super easy to deal with with Nix, because it gives you a baseline level of isolation for all packages that obviates these problems.

Old versions of software are super easy to deal with with Nix, because it gives you a baseline level of isolation for all packages that obviates these problems. On some of my systems running the latest NixOS release from 2021, I've installed a package from 2015, and I didn't have to do anything to isolate it or its whole toolchain.