diff --git a/flake.nix b/flake.nix
index cb2dff9..5dc53bb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,5 +36,7 @@
     };
 
     mergeListsToAttrs = names: values: nixpkgs.lib.listToAttrs (nixpkgs.lib.zipListsWith (name: value: { inherit name value; }) names values);
+
+    mkEnumFromDirContents = dir: nixpkgs.lib.types.enum (map (name: nixpkgs.lib.removeSuffix ".nix" name) (builtins.attrNames (builtins.readDir dir)));
   };
 }