{ config, pkgs, ... }:

{
  # Enable automatic garbage collection (prevents /boot or / filling up)
  nix.gc.automatic     = true;
  nix.gc.dates         = "03:00";           # run GC at 03:00 daily

  # Enable automatic system upgrades
  system.autoUpgrade = {
    enable             = true;               # turn on unattended upgrades
    dates              = "02:00";            # schedule upgrades at 02:00 each day
    randomizedDelaySec = "45m";              # spread load by up to 45 minutes
    allowReboot        = false;              # don't reboot if needed for new generation
  };

}