Comment by Chris_Newton

3 days ago

Have you come across Nix Package Versions¹ yet? If you’re looking to work around a recent bug or other unwanted change by installing a slightly older version of some package from nixpkgs, Marcelo Lazaroni built a nice page to help with that and wrote up an explanation² of how it works.

This only works for versions of your package that do exist in nixpkgs but aren’t currently the default for your chosen channel, so it doesn’t help if your channel is out of date and you want to install a newer version that hasn’t been packaged yet. But then that’s the case in almost any Linux distro if you rely on installing your software from the distro’s native package repo, and much the same solutions exist in NixOS as in other distros. Although if you’re really determined, you can also start writing your own derivations to automate building the latest versions of your favourite applications before they’re available from nixpkgs…