diff --git a/flake.nix b/flake.nix
index 3d78e9a..9769c61 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,6 +23,15 @@
             # For nix repl debugging
             # inherit codedown;
 
+            # For testing out the nixpkgs overlay
+            # environmentUsingNixpkgsOverlay = (import nixpkgs {
+            #   inherit system;
+            #   overlays = [(pkgsStable.callPackage ./nix/nixpkgs-overlay.nix {})];
+            # }).makeEnvironment {
+            #   su.enable = true;
+            #   # su.outputs = ["out" "baz"];
+            # };
+
             searcher = codedown.searcher pkgsStable;
 
             # Tests use flake to do packageSearch builds
diff --git a/nix/convert-type.nix b/nix/convert-type.nix
index e977db0..fcfc503 100644
--- a/nix/convert-type.nix
+++ b/nix/convert-type.nix
@@ -28,6 +28,9 @@ let
         (path: value: convertType target value.type)
         (lib.removeAttrs (type.getSubOptions {}) ["_module"]);
     }
+    # else if (type.name == "unknown") then {
+    #   type = "unknown";
+    # }
     else builtins.throw "Can't convert type for '${target}': ${toString type.name}"
   ;