modules: system: move 'media'

modules/system/default.nix

@@ -3,6 +3,6 @@
 
 {
   imports = [
-    # FIXME
+    ./media.nix
   ];
 }

modules/system/media.nix

@@ -0,0 +1,16 @@
+# Abstracting away the need for a common 'media' group
+
+{ config, lib, ... }:
+let
+  mediaServices = with config.my.services; [
+    calibre-web
+    jellyfin
+    pirate
+    sabnzbd
+    transmission
+  ];
+  needed = builtins.any (service: service.enable) mediaServices;
+in
+{
+  config.users.groups.media = lib.mkIf needed { };
+}