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android/build.gradle

@@ -52,3 +52,15 @@ android {
         jvmTarget = '1.8'
     }
 }
+
+dependencies {
+    // CameraX for scanner preview + frame analysis. Pinned to a stable
+    // train; the `view` module pulls in the rest transitively.
+    def cameraxVersion = '1.3.4'
+    implementation "androidx.camera:camera-core:$cameraxVersion"
+    implementation "androidx.camera:camera-camera2:$cameraxVersion"
+    implementation "androidx.camera:camera-lifecycle:$cameraxVersion"
+    implementation "androidx.camera:camera-view:$cameraxVersion"
+    // Pure-Kotlin/Java QR decoder. ~470 KB jar, no Play Services dep.
+    implementation 'com.google.zxing:core:3.5.3'
+}