diff --git a/README.md b/README.md
index 8945ffe..9fc6840 100644
--- a/README.md
+++ b/README.md
@@ -10,9 +10,14 @@ assuming nix flake
 nix develop
 # or if using direnv
 echo "use flake ." > .envrc
+direnv allow
+# endif
 
 npm run dev
 # runs dev server on localhost:4000
 # instances run on incremntal ports
 # refresh page to reflect changes
+
+npm run build
+# builds new xdc as dist/webxdc-go.xdc
 ```