[seabea]

NixOS is Linux

[palata]

Which may someday replace Arch in the saying that Arch people never forget to mention they are using Arch :-).

[thomastjeffery]

Throughout the article, they use NixOS specific features.

You can't really follow this in Arch without installing Nix and changing some parts of the instructions.

[palata]

Yes but those are fairly straightforward commands that are not really relevant (the post is about using v4l2 and gphoto).

[Markoff]

How am I supposed to know that? I assumed it's some special custom firmware/OS for Nikon cameras before opening the link.

You way overestimate popularity and general knowledge of some rare Linux distros even among IT guys.