NixPkgs amongst other things replace rpm/deb packages - and having a package install declared in a git repo is awesome compared to installing a pre-packaged co

NixPkgs amongst other things replace rpm/deb packages - and having a package install declared in a git repo is awesome compared to installing a pre-packaged compressed blob. Nixos keeps the entire system state based on a declaration and lets you move back/forward on whole system configurations super quick. Ansible and salt does not really declare a complete system state but rather try to manipulate the underlying system. Ansible keeps no state at all actually. Nixos+pkg is all about declaring and keeping a state of a machine as much as reasonably possible. It has it’s flaws but the end result is still much more coherent and predictable compared to traditional configuration management.