diff --git a/templates/php/sculpin/.gitignore.twig b/templates/php/sculpin/.gitignore.twig
index 9d37bbf..29cd2b0 100644
--- a/templates/php/sculpin/.gitignore.twig
+++ b/templates/php/sculpin/.gitignore.twig
@@ -1,9 +1,14 @@
 # {{ managedText|raw }}
 
+/.phpunit.cache
 /.phpunit.result.cache
 /output_*/
 /vendor/
 
+# Front-end assets.
+node_modules
+source/build
+
 {% if isFlake %}
 /.direnv/
 {% endif %}