diff --git a/flake.nix b/flake.nix
index 27a9715..f23fd06 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,6 +9,8 @@
       buildInputs = with pkgs; [
         just
         toml2json
+        nodePackages.npm
+        nodePackages.webpack
         nodePackages.webpack-cli
         entr
 
@@ -23,6 +25,7 @@
 
         inherit buildInputs;
 
+        PATH = pkgs.lib.makeBinPath buildInputs;
         buildPhase = ''
           just build
         '';