home(util): add minimal system option

home/util/home.nix

@@ -1,10 +1,14 @@
 { pkgs
 , lib
 , config
-, ... }: with lib; {
+, ... }: with lib; let
+  cfg = config.passthrough.util;
+in {
   home.packages = with pkgs; [
-    pv file wget nix-index
-    e2fsprogs lsscsi zip unzip
+    pv file wget e2fsprogs
+  ] ++ optionals (!cfg.minimal) [
+    nix-index
+    lsscsi zip unzip
     pciutils usbutils nvme-cli
   ] ++ optionals config.passthrough.gui [
     gtk-engine-murrine