[kkfx]

It's a node.js web-app, so it might need some NGINX (or other web server) settings, eventual acme/let's encrypt etc, few SLoC to customize and that's the very point: being able to customize anything without two-stage with one by hand in a terminal or with separate tools like Ansible.

[Arelius]

Yeah, none of those seem to be covered in the parent post, so the Nix example is equally simplistic.