Translations:NixOS/26/en

Changes to the configuration are applied atomically using nixos-rebuild switch, ensuring reproducibility and the ability to roll back to previous states. Most users track their configuration files in a version control system, enabling consistent and portable system setups. These shortcomings are often rectified after-the-fact if at all by configuration management solutions such as Puppet, Ansible or Chef. These tools reconcile system configuration with a description of the expected state. However, these tools are not integrated into the operating system design and are simply layered on top, and OS configuration may still vary where an aspect of OS configuration has not been specified in the description of expected state.