Update icon, and FINALLY invent the version stack

app/src/main/AndroidManifest.xml

@@ -2,8 +2,12 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="true" />
+
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.CAMERA"/>
 
     <application
         android:allowBackup="true"
@@ -19,6 +23,7 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
+            android:screenOrientation="portrait"
             android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />