Hey, one other thought on this file -- it's great that you renamed it to spark-defaults but maybe an even better choice is to put it in the org.apache.spark package. That way users are much less likely to try to make their own. I think Typesafe Config should still be able to load it from a nested path (you probably just pass "org/apache/spark/spark-defaults.conf" to it, or in the worst case do getClass.getResourceAsStream(...)).