add printing

default.nix

@@ -6,13 +6,21 @@ in {
   options.grimmShared = {
     enable = mkEnableOption "grimm-shared-modules";
     
-    enableLocale = mkOption {
+    locale = mkOption {
       type = types.bool;
       default = true;
       description = "Sets german units but english language";
     };
+
+    printing = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Enables print and scan related options";
+    };
   };
 
-  imports = [./modules/localisation.nix]
-  ;
+  imports = [
+    ./modules/localisation.nix
+    ./modules/printing.nix
+  ];
 }

modules/localisation.nix

@@ -1,7 +1,7 @@
 { config, lib, ... }: let
   cfg = config.grimmShared;
 in {
-  config = with cfg; lib.mkIf (enable && enableLocale) {
+  config = with cfg; lib.mkIf (enable && locale) {
     time.timeZone = "Europe/Berlin";
 
     # Select internationalisation properties.

modules/printing.nix

@@ -0,0 +1,16 @@
+{ 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
+  };
+}