@@ -1,9 +1,12 @@
 with import <nixpkgs> {};
-stdenv.mkDerivation rec {
-  name = "env";
-  env = buildEnv { name = name; paths = buildInputs; };
-  buildInputs = [
+mkShell {
+  venvDir = ".venv";
+  buildInputs = with python3.pkgs; [
     haskellPackages.pandoc
-    mkdocs
+    weasyprint
+    venvShellHook
   ];
+  postShellHook = ''
+    pip install mkdocs-with-pdf
+  '';
 }