diff --git a/.gitignore b/.gitignore
index f239670..f05ce3c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,7 @@
 # Build artifacts
 *.o
 build/
-orbit_sim
-orbit_test
-tests/informational/test_time_step_stability
+*/__pycache__
 
 # LLM summaries
 tmp/
@@ -23,5 +21,3 @@ tags
 .DS_Store
 Thumbs.db
 
-# non-portable custom scripts
-sync.sh