Something I don't understand about NixOS:<p>Let's say I have a declarative definition for a web server. The NixOS configuration defines that I want nginx (or Apache or whatever), and that I have three web roots for three domains, and I'd like a no-www-to-www redirection, and this SSH key in authorized_keys and so on.<p>How do I get my files that I'd like nginx to serve on the server?<p>Do I still need Ansible? Is there a config option for "right next to the configuration file lies a tar archive with the web root contents"? Something else?