diff --git a/flake.nix b/flake.nix
index 3d0b9c7..26604a3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -30,6 +30,13 @@
             modifier = drv:
               pkgs.haskell.lib.addBuildTools drv (with hp; [
                 # Specify your build/dev dependencies here.
+                hlint
+                haskell-language-server
+                ormolu
+
+                pkgs.mesa
+                pkgs.mesa_glu
+                pkgs.freeglut
               ]);
           };
       in