diff --git a/README.md b/README.md
index 26c68cc..8aa8b4b 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,16 @@ A small test app that tries to load a USBDriverKit system extension
 https://developer.apple.com/videos/play/wwdc2019/702/
 
 You will want to edit the Info.plist of the DriverKit extension to match the Vendor ID and Product ID of a test device you have. Then after you activate the extension, attach the USB device and your DriverKit application should start on demand.
+
+
+## Important Xcode settings
+
+- Xcode: PROJECT: USBApp > Build Settings > Signing > Code Signing Identity > **Sign to Run Locally**
+- Xcode: TARGETS: USBApp > Build Settings > Signing > Code Signing Identity > **Sign to Run Locally**
+- Xcode: TARGETS: USBApp > Build Phases > Embed System Extensions > **[ x ] Copy only when installing**
+
+Now you can run it from within Xcode.
+
+## Troubleshooting
+- Problem: Hit button Activate: Does not work, will fails with "didFailWithError <private>" see Xcode console.
+- Solution: (not found so far)