diff --git a/flake.nix b/flake.nix
index c8e5792a2..e9cfa0b9f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,6 +38,7 @@
               sqlite
               tailwindcss_4
               tailwindcss-language-server
+              watchman
             ];
 
             commands = [