diff --git a/treefmt.nix b/treefmt.nix
index 722a5be..e0195f0 100644
--- a/treefmt.nix
+++ b/treefmt.nix
@@ -3,4 +3,9 @@
   projectRootFile = "flake.nix";
 
   programs.nixfmt.enable = true;
+  programs.biome.enable = true;
+  programs.stylua.enable = true;
+  programs.taplo.enable = true;
+  programs.mdformat.enable = true;
+  programs.shellcheck.enable = true;
 }