modules/nix.nix


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{ config, pkgs, ... }:

{ nix = {
    buildCores = 0;

    daemonNiceLevel = 10;
    daemonIONiceLevel = 4;

    extraOptions = ''
      auto-optimise-store = true
    '';
    gc = {
      automatic = true;
      options = "--delete-older-than 30d";
    };
  };

  system.autoUpgrade = {
    enable = true;
  };
  systemd.services.nixos-upgrade.script = ''
    ${config.system.build.nixos-rebuild}/bin/nixos-rebuild boot ${toString config.system.autoUpgrade.flags}
  '';
}