diff --git a/.DS_Store b/.DS_Store
index 8dc441e86b..f81563247d 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000000..8f1cece1cf
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,2 @@
+# TODO:
+
diff --git a/backend/server-python/readme.md b/backend/server-python/readme.md
new file mode 100644
index 0000000000..b8e29d6c4a
--- /dev/null
+++ b/backend/server-python/readme.md
@@ -0,0 +1 @@
+# for llm