diff --git a/README.md b/README.md
index 9d63ab4..0e94fe2 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,8 @@ The following are supported.
 * mouse click / mouse wheel
 * support TRRS (UART)
 * support [Vial](https://vial.rocks/)
+    * Keymap / Layers
+    * Matrix testers
 
 ## Microcontrollers