I used a Ansible for years before switching to NixOS. The problem with ansible is it is an imperative configuration tool that makes efforts to be declarative, b

I used a Ansible for years before switching to NixOS. The problem with ansible is it is an imperative configuration tool that makes efforts to be declarative, but is not fully. Most runs fail to be declarative, eg even something as basic as “apt update” is irreversible. Ultimately, Ansible requires you to write code that is (State, Code) -> New State, whereas NixOS is truly Code -> State