diff --git a/flake.nix b/flake.nix
index 303820a..dfebab0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -144,27 +144,14 @@
       };
     };
 
-    devShell.${system} = devenv.lib.mkShell {
-      inherit inputs pkgs;
-      modules = [
-        {
-          # https://devenv.sh/reference/options/
-          packages = with pkgs; [
-            alejandra
-          ];
-
-          enterShell = ''
-          '';
-
-          env = {
-          };
-
-          scripts = {
-            tidy.exec = ''
-              alejandra .
-            '';
-          };
-        }
+    devShell.${system} = pkgs.mkShell {
+      packages = [
+        pkgs.alejandra
+        (
+          pkgs.writeScriptBin "tidy" ''
+            alejandra .
+          ''
+        )
       ];
     };
   };