{pkgs, configVars, ...}: let
  gatewayIp = configVars.networking.addresses.gateway.ip;
in {
  networking.firewall = {
    allowedTCPPorts = [631];
    allowedUDPPorts = [631];
  };

  services = {
    udev.packages = [pkgs.sane-airscan];
    ipp-usb.enable = true;
    saned = {
      enable = true;
      extraConfig = "${gatewayIp}/24";
    };
    printing = {
      enable = true;
      drivers = [pkgs.hplip];
      browsing = true;
      defaultShared = true;
      listenAddresses = ["*:631"];
      allowFrom = ["all"];
      extraConf = ''
        DefaultPaperSize A4
      '';
    };

    avahi = {
      enable = true;
      nssmdns = true;
      openFirewall = true;
      publish = {
        enable = true;
        userServices = true;
      };
    };
  };

  hardware = {
    sane = {
      enable = true;
      extraBackends = [pkgs.sane-airscan pkgs.hplipWithPlugin];
      openFirewall = true;
    };
    printers = {
      ensurePrinters = [
        {
          name = "HP_Envy_6000";
          location = "Home";
          deviceUri = "usb://HP/ENVY%206000%20series?serial=TH0B93F08W&interface=1";
          # deviceUri = "usb://Dell/1250c%20Color%20Printer?serial=YNP023240";
          model = "HP/hp-deskjet_plus_6000_series.ppd.gz";
          ppdOptions = {
            PageSize = "A4";
          };
        }
      ];
      ensureDefaultPrinter = "HP_Envy_6000";
    };
  };
}