add Quest hand tracking support and update docs

- Add hand tracking manifest entries to MosisSDK_UPL.xml
  - oculus.software.handtracking feature (required=false)
  - horizonos.permission.HAND_TRACKING permission
- Add OculusXR hand tracking settings to DefaultEngine.ini
- Update README with OBB deployment instructions and Quest config

Config/DefaultEngine.ini

@@ -98,3 +98,12 @@ ConnectionType=USBOnly
 bUseManualIPAddress=False
 ManualIPAddress=
 
+[/Script/OculusXRHMD.OculusXRHMDRuntimeSettings]
+bSupportHandTracking=True
+HandTrackingSupport=ControllersAndHands
+HandTrackingFrequency=High
+HandTrackingVersion=V2
+
+[/Script/OpenXRSettings.OpenXRSettings]
+bEnableHandTracking=True
+

Plugins/MosisSDK/README.md

@@ -279,11 +279,31 @@ else if (!TriggerPressed && WasTriggerPressed)
 
 ## Device Testing
 
+### Installation
+
+The Android build produces both an APK and an OBB file. **Both must be deployed for each build**:
+
 ```batch
-:: Install both apps
-adb install -r path\to\MosisService.apk
+:: Install APK
 adb install -r Binaries\Android\MosisUnreal-arm64.apk
 
+:: Create OBB directory and push OBB file
+adb shell mkdir -p /sdcard/Android/obb/com.omixlab.MosisUnreal
+adb push Binaries\Android\main.1.com.omixlab.MosisUnreal.obb /sdcard/Android/obb/com.omixlab.MosisUnreal/
+
+:: Install MosisService
+adb install -r path\to\MosisService.apk
+```
+
+Alternatively, use the generated install script:
+```batch
+cd Binaries\Android
+Install_MosisUnreal-arm64.bat
+```
+
+### Launching
+
+```batch
 :: Launch service first
 adb shell am start -n com.omixlab.mosis/.MainActivity
 
@@ -291,7 +311,44 @@ adb shell am start -n com.omixlab.mosis/.MainActivity
 adb shell am start -n com.omixlab.MosisUnreal/com.epicgames.unreal.GameActivity
 
 :: Monitor logs
-adb logcat -s MosisSDK MosisTest RMLUI
+adb logcat -s MosisSDK MosisTest RMLUI LogMosisClient LogMosisSDK
+```
+
+### Expected Log Output
+
+Successful connection shows:
+```
+LogMosisSDK: serviceConnected callback received
+LogMosisClient: onServiceInitialized: true
+LogMosisClient: Create: initOS returned true
+LogMosisSDK: serviceConnected: MosisClient created successfully
+LogMosisClient: onBufferAvailable: 540x960, format=1
+LogMosisSDK: Buffer callback: buffer=0x...
+```
+
+## Meta Quest Configuration
+
+### Hand Tracking Support
+
+The plugin includes hand tracking support to allow launching on Quest devices without controllers. This is configured in `MosisSDK_UPL.xml`:
+
+```xml
+<uses-feature android:name="oculus.software.handtracking" android:required="false" />
+<uses-permission android:name="horizonos.permission.HAND_TRACKING" />
+```
+
+**Note**: Uses `horizonos.permission.HAND_TRACKING` (not the deprecated `com.oculus.permission.HAND_TRACKING`).
+
+### OculusXR Settings
+
+Hand tracking is also enabled in `DefaultEngine.ini`:
+
+```ini
+[/Script/OculusXRHMD.OculusXRHMDRuntimeSettings]
+bSupportHandTracking=True
+HandTrackingSupport=ControllersAndHands
+HandTrackingFrequency=High
+HandTrackingVersion=V2
 ```
 
 ## Version History

Plugins/MosisSDK/Source/MosisSDK/MosisSDK_UPL.xml

@@ -5,6 +5,8 @@
       <queries>
         <package android:name="com.omixlab.mosis" />
       </queries>
+      <uses-feature android:name="oculus.software.handtracking" android:required="false" />
+      <uses-permission android:name="horizonos.permission.HAND_TRACKING" />
     </addElements>
   </androidManifestUpdates>
   <proguardAdditions>