# Edit this configuration file to define what should be installed on # your system. Help is available in the configuration.nix(5) man page # and in the NixOS manual (accessible by running `nixos-help`). { ... }: { users.mutableUsers = false; system.autoUpgrade = { dates = "02:30"; allowReboot = true; rebootWindow = { lower = "02:00"; upper = "05:00"; }; }; }