Andreas Meyer wrote (ao):
> One more question for now. To bring up WLAN do I have to enable
> wpa_supplicant and networkmanager in the configuration.nix ?
Not AFAICT, just:
  networking.wireless.networks = {
    "Fast Lane Guest" = {
      psk                                       = "<wifipassword>";
    };
    "CWLANGuest" = {
      psk                                       = "<wifipassword>";
    };
    "KPN" = {
    };
  };
	Sander