diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b1cb0b2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,22 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+
+# Virtual environments
+venv/
+ENV/
+env/
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
diff --git a/__pycache__/efficiency_nodes.cpython-312.pyc b/__pycache__/efficiency_nodes.cpython-312.pyc
deleted file mode 100644
index cd30191..0000000
Binary files a/__pycache__/efficiency_nodes.cpython-312.pyc and /dev/null differ
diff --git a/py/__pycache__/bnk_adv_encode.cpython-312.pyc b/py/__pycache__/bnk_adv_encode.cpython-312.pyc
deleted file mode 100644
index 7c2df6c..0000000
Binary files a/py/__pycache__/bnk_adv_encode.cpython-312.pyc and /dev/null differ