diff --git a/.gitignore b/.gitignore
index a68e5b5..04f4364 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,3 +28,4 @@ google-services.json
 
 # Android Profiling
 *.hprof
+*.aab
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b977601..f43f17e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    package="com.maenle.bump">
+    package="com.maenle.bump"
+    android:versionName="initial">
 
     <uses-feature android:name="android.hardware.camera.any" />
     <uses-permission android:name="android.permission.CAMERA" />
diff --git a/app/src/main/java/com/maenle/bump/MyFirebaseMessagingService.kt b/app/src/main/java/com/maenle/bump/MyFirebaseMessagingService.kt
index 002bcf2..fb60826 100644
--- a/app/src/main/java/com/maenle/bump/MyFirebaseMessagingService.kt
+++ b/app/src/main/java/com/maenle/bump/MyFirebaseMessagingService.kt
@@ -19,18 +19,18 @@ class MyFirebaseMessagingService : FirebaseMessagingService() {
     // [START receive_message]
     override fun onMessageReceived(remoteMessage: RemoteMessage) {
         // Not getting messages here? See why this may be: https://goo.gl/39bRNJ
-        Log.d(TAG, "From: ${remoteMessage.from}")
+        // Log.d(TAG, "From: ${remoteMessage.from}")
 
         // TODO Step 3.5 check messages for data
         // Check if message contains a data payload.
         remoteMessage.data.let {
-            Log.d(TAG, "Message data payload: " + remoteMessage.data)
+            // Log.d(TAG, "Message data payload: " + remoteMessage.data)
         }
 
         // TODO Step 3.6 check messages for notification and call sendNotification
         // Check if message contains a notification payload.
         remoteMessage.notification?.let {
-            Log.d(TAG, "Message Notification Body: ${it.body}")
+            // Log.d(TAG, "Message Notification Body: ${it.body}")
             sendNotification(it.body!!)
         }
     }
diff --git a/app/src/main/java/com/maenle/bump/ui/CameraFragment.kt b/app/src/main/java/com/maenle/bump/ui/CameraFragment.kt
index abdf6c0..5ce19b1 100644
--- a/app/src/main/java/com/maenle/bump/ui/CameraFragment.kt
+++ b/app/src/main/java/com/maenle/bump/ui/CameraFragment.kt
@@ -110,9 +110,9 @@ class CameraFragment: Fragment() {
                 previewUseCase
             )
         } catch (illegalStateException: IllegalStateException) {
-            Log.e(TAG, illegalStateException.message ?: "IllegalStateException")
+            // Log.e(TAG, illegalStateException.message ?: "IllegalStateException")
         } catch (illegalArgumentException: IllegalArgumentException) {
-            Log.e(TAG, illegalArgumentException.message ?: "IllegalArgumentException")
+            // Log.e(TAG, illegalArgumentException.message ?: "IllegalArgumentException")
         }
     }
 
@@ -153,9 +153,9 @@ class CameraFragment: Fragment() {
                 analysisUseCase
             )
         } catch (illegalStateException: IllegalStateException) {
-            Log.e(TAG, illegalStateException.message ?: "IllegalStateException")
+            // Log.e(TAG, illegalStateException.message ?: "IllegalStateException")
         } catch (illegalArgumentException: IllegalArgumentException) {
-            Log.e(TAG, illegalArgumentException.message ?: "IllegalArgumentException")
+            // Log.e(TAG, illegalArgumentException.message ?: "IllegalArgumentException")
         }
     }
 
@@ -189,7 +189,7 @@ class CameraFragment: Fragment() {
                 blockingScanned = false
             }
             .addOnFailureListener {
-                Log.e(TAG, it.message ?: it.toString())
+                // Log.e(TAG, it.message ?: it.toString())
             }.addOnCompleteListener {
                 // When the image is from CameraX analysis use case, must call image.close() on received
                 // images when finished using them. Otherwise, new images may not be received or the camera
@@ -207,7 +207,7 @@ class CameraFragment: Fragment() {
             if (isCameraPermissionGranted()) {
                 bindCameraUseCases()
             } else {
-                Log.e(TAG, "no camera permission")
+                // Log.e(TAG, "no camera permission")
             }
         }
         super.onRequestPermissionsResult(requestCode, permissions, grantResults)
diff --git a/app/src/main/java/com/maenle/bump/ui/FirstFragment.kt b/app/src/main/java/com/maenle/bump/ui/FirstFragment.kt
index 070439d..436e842 100644
--- a/app/src/main/java/com/maenle/bump/ui/FirstFragment.kt
+++ b/app/src/main/java/com/maenle/bump/ui/FirstFragment.kt
@@ -125,7 +125,7 @@ class FirstFragment : Fragment() {
         try {
             bitmap = qrgEncoder.encodeAsBitmap()
         } catch (e: WriterException) {
-            Log.d("Tag", e.toString())
+            // Log.d("Tag", e.toString())
         }
 
         if(nightModeFlags == Configuration.UI_MODE_NIGHT_YES) {
@@ -160,7 +160,7 @@ class FirstFragment : Fragment() {
                 if (!task.isSuccessful) {
                     curmessage = getString(R.string.message_subscribe_failed)
                 }
-                Log.d(TAG, curmessage.toString())
+                // Log.d(TAG, curmessage.toString())
             }
         // [END subscribe_topics]
     }
diff --git a/app/src/main/java/com/maenle/bump/util/CameraXViewModel.kt b/app/src/main/java/com/maenle/bump/util/CameraXViewModel.kt
index f46b9fa..7ffce5c 100644
--- a/app/src/main/java/com/maenle/bump/util/CameraXViewModel.kt
+++ b/app/src/main/java/com/maenle/bump/util/CameraXViewModel.kt
@@ -29,9 +29,9 @@ class CameraXViewModel(application: Application) : AndroidViewModel(application)
                             cameraProviderLiveData!!.setValue(cameraProviderFuture.get())
                         } catch (e: ExecutionException) {
                             // Handle any errors (including cancellation) here.
-                            Log.e(TAG, "Unhandled exception", e)
+                            // Log.e(TAG, "Unhandled exception", e)
                         } catch (e: InterruptedException) {
-                            Log.e(TAG, "Unhandled exception", e)
+                            // Log.e(TAG, "Unhandled exception", e)
                         }
                     },
                     ContextCompat.getMainExecutor(getApplication())
diff --git a/app/src/main/java/com/maenle/bump/util/RestSingleton.kt b/app/src/main/java/com/maenle/bump/util/RestSingleton.kt
index 673896b..5760d9d 100644
--- a/app/src/main/java/com/maenle/bump/util/RestSingleton.kt
+++ b/app/src/main/java/com/maenle/bump/util/RestSingleton.kt
@@ -26,7 +26,7 @@ class RestSingleton constructor(context: Context){
             }
 
         private val TAG = MainActivity::class.java.simpleName
-        private const val URL = "http://192.168.68.127:4000/api/"
+        private const val URL = "https://bump.maenle.net/api/"
     }
 
     fun list(sender: String, callback: (JSONArray) -> Unit){