diff --git a/.gitignore b/.gitignore
index ca170a0..c6ad872 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,4 +28,5 @@ setup.log
 # Local OPAM switch
 _opam/
 
-.direnv/
\ No newline at end of file
+.direnv/
+.vscode/
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index 6c10356..e5ccd0c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,14 +18,17 @@
         platforms = [ system ];
         #maintainers = with maintainers; [ ];
       };
-    in {
+    in with pkgs.ocamlPackages; {
       devShells.${system}.default = with pkgs; mkShell {
-        #packages = [];
+        packages = [
+          ocaml-lsp
+          ocamlformat
+        ];
         inputsFrom = with self.packages.${system}; [ helloworld ];
       };
       packages.${system} = {
         default = self.packages.${system}.helloworld;
-        helloworld = pkgs.ocamlPackages.buildDunePackage rec {
+        helloworld = buildDunePackage rec {
           pname = "helloworld";
           version = "0.1.0";
           src = ./.;