diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9095018
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# Environment and secrets
+.env
+*.env
+
+# Database files
+db/
+conversations.db
+watcher_state.json
+
+# Python
+__pycache__/
+*.pyc
+*.pyo
+venv/
+
+# Logs
+*.log
+
+# OS
+.DS_Store
+Thumbs.db