What clicks is that the OS seems to go against entropy, getting more stable the longer you use it and update your config, as opposed to other distros, which get

What clicks is that the OS seems to go against entropy, getting more stable the longer you use it and update your config, as opposed to other distros, which get cruftier over time, after which you have to reinstall every couple years, not remembering half the things you did to set it up. As others have said, it's immutable and completely built from config, and you can basically configure anything, so you can effectively redeploy a machine form config in minutes. Furthermore, it creates a snapshot every time you deploy, so you can always roll back if you break something. Nix is basically the future of operating systems. The one problem that still needs solving, which is blocking wider adoption, is ease of use. People are working on making the command line tools easier, but what will really do it is something that abstracts away config generation with a UI installer and tools, but opens up the config if you go into "advanced mode" or something like that.