diff --git a/.gitignore b/.gitignore
index 96bcdec..8eb56bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,10 @@
-__pycache__/
-*.pyc
-*.pyo
-.venv/
-venv/
-*.egg-info/
-dist/
-build/
-output/
-.DS_Store
+# Ignore everything by default
+*
+
+# Recurse into directories
+!*/
+
+# Whitelist: only source code and docs
+!*.py
+!*.md
+!.gitignore