anchor.diff:    ###### interface
   
     options = {
  -
  -    networking.WLANInterface = mkOption {
  -      default = "";
  -      description = "Obsolete. Use <option>networking.wireless.interfaces</option> instead.";
  -    };
  -
       networking.wireless = {
         enable = mkOption {
           type = types.bool;
  
positive.code:     services.dbus.packages = [ pkgs.wpa_supplicant ];
  
      # FIXME: start a separate wpa_supplicant instance per interface.
      jobs.wpa_supplicant =
        { description = "WPA Supplicant";
  
          wantedBy = [ "network.target" ];
  
  
negative.code: with lib;
  
  let
    cfg = config.networking.wireless;
    configFile = "/etc/wpa_supplicant.conf";
  in
  
  {
  