NixOS-Config/modules/system/devices/printing/default.nix

{ pkgs, ... }:
{
  services = {
    printing = {
      enable = true;
      drivers = with pkgs; [ hplip ];
      webInterface = false;
    };
    avahi = {
      enable = true;
      nssmdns4 = true;
      openFirewall = true;
    };
  };

  environment.systemPackages = with pkgs; [
    system-config-printer
  ];
}