grimm-nix-shared/modules/printing.nix

{ pkgs, config, lib, ... }: let
  cfg = config.grimmShared;
in {
  config = with cfg; lib.mkIf (enable && printing) {
    # Enable CUPS to print documents.
    services.printing.enable = true;
    services.printing.drivers = with pkgs; [ brgenml1lpr brgenml1cupswrapper ];
    services.avahi = {
      enable = true;
      nssmdns4 = true;
      openFirewall = true;
    };
    services.printing.cups-pdf.enable = true;
    hardware.sane.brscan4.enable = true; # enables support for SANE scanners

    environment.systemPackages = with pkgs; [
      skanpage
    ];
  };
}