diff --git a/overlays/20-zotero-pin.nix b/overlays/20-zotero-pin.nix
index 109afe5..3e32e88 100644
--- a/overlays/20-zotero-pin.nix
+++ b/overlays/20-zotero-pin.nix
@@ -1,3 +1,15 @@
+# To test if a new Zotero package works without the overlay try
+# nix --extra-experimental-features 'nix-command flakes' eval --raw --impure --expr '
+# let
+#  flake = builtins.getFlake (toString ./.);
+#  pkgs = import flake.inputs.nixpkgsAarch64 {
+#    system = "aarch64-darwin";
+#    config.allowUnfree = true;
+#  };
+# in
+# pkgs.zotero.version
+# '
+
 final: prev:
 
 let