add printing module

modules/desktop/default.nix

@@ -24,5 +24,6 @@
     ./plymouth
     # vpn
     ./wireguard
+    ./printing
   ];
 }

modules/desktop/printing/default.nix

@@ -0,0 +1,27 @@
+{
+  options,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.modules.desktop.printing;
+in {
+  options.modules.desktop.printing = {
+    enable = mkEnableOption false;
+  };
+
+  config = mkIf cfg.enable {
+    # enable printing itself
+    services.printing.enable = true;
+
+    # autodiscovery of printers
+    services.avahi = {
+      enable = true;
+      nssmdns = true;
+      openFirewall = true;
+    };
+
+  };
+}