It's like an OS that has builtin salt/ansible/chef/puppet. Because Nix language describe the OS instead of what to change/configure it's superior to these tool

It's like an OS that has builtin salt/ansible/chef/puppet. Because Nix language describe the OS instead of what to change/configure it's superior to these tools, and solves the problem that supposedly same machines are drifting apart. For example if in the CM you tell it to install a package, then change your mind and remove the entry that does it. The package will remain installed. With NixOS if you remove the package from configuration, it's gone. I personally really like Nix's building capability. For example I can use it to generate a minimal docker container. It requires some knowledge, but I can also modify compilation options in dependencies (like remove unneeded functionality). It looks like there's also an option to similarly build lightweight OS images[1]. I haven't tried it yet but looks cool. [1] https://github.com/cleverca22/not-os https://github.com/cleverca22/not-os