diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..201480b
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,7 @@
+//! MoMentry Playground - 統一媒體播放與監控平台
+
+pub mod player;
+pub mod ui;
+pub mod viewer;
+pub mod api;
+pub mod input;