Reduce build size via config restriction

modules/nixos/system/hw/fs/default.nix

@@ -1,6 +1,9 @@
-{ pkgs, ... }: {
+{ config, lib, pkgs, ... }:
+let
+  hasNfsFileSystems = lib.any (fs: fs.fsType == "nfs" || fs.fsType == "nfs4") (lib.attrValues config.fileSystems);
+in {
   services.fstrim.enable = true; # Improves SSD life
-  services.gvfs.enable = true; # User Mounted FS
+  services.gvfs.enable = config.syscfg.make.gui; # User Mounted FS
 
-  environment.systemPackages = with pkgs; [ nfs-utils ];
+  environment.systemPackages = lib.optionals hasNfsFileSystems [ pkgs.nfs-utils ];
 }