diff --git a/PRIVATE/__no_init__.py b/PRIVATE/__no_init__.py
index d2fd367..d67a6bd 100644
--- a/PRIVATE/__no_init__.py
+++ b/PRIVATE/__no_init__.py
@@ -3,3 +3,11 @@
 
 # Placeholder to remind this directory should not become a package
 # In order to avoid bundling it with the main package as wheel / bdist
+
+# THIS DIRECTORY MAY CONTAIN OVERRIDE FILES
+# 
+# 
+#  `_private_secret_keys.py` here will override secret_keys.py
+#  `_obfuscation.py` here will override obfuscation.py
+#
+# If these files exist, build type will become "private" instead of "public"