Comment by jchw

> The other thing is package availability: it's amazing on Nix. Plus, they remain relatively fresh on the unstable channel. How's that on Guix?

The article says it seemed good. If you want a quantified look, Repology has some stats.

GNU Guix: https://repology.org/repository/gnuguix

Nixpkgs unstable: https://repology.org/repository/nix_unstable

However, note that the Guix entry doesn't include Nonguix AFAICT. So, it's a bit higher if you are using nonguix.