app: finalize for release

app/android/app/build.gradle

@@ -79,6 +79,7 @@ import com.android.build.OutputFile
 
 project.ext.react = [
     enableHermes: true,  // clean and rebuild if changing
+    hermesCommand: "../../node_modules/react-native/sdks/hermesc/%OS-BIN%/hermesc"
 ]
 
 apply from: "../../node_modules/react-native/react.gradle"
@@ -91,12 +92,12 @@ apply from: "../../node_modules/react-native/react.gradle"
  * Upload all the APKs to the Play Store and people will download
  * the correct one based on the CPU architecture of their device.
  */
-def enableSeparateBuildPerCPUArchitecture = false
+def enableSeparateBuildPerCPUArchitecture = true
 
 /**
  * Run Proguard to shrink the Java bytecode in release builds.
  */
-def enableProguardInReleaseBuilds = false
+def enableProguardInReleaseBuilds = true
 
 /**
  * The preferred build flavor of JavaScriptCore.
@@ -213,7 +214,7 @@ android {
         abi {
             reset()
             enable enableSeparateBuildPerCPUArchitecture
-            universalApk false  // If true, also generate a universal APK
+            universalApk true  // If true, also generate a universal APK
             include (*reactNativeArchitectures())
         }
     }
@@ -224,6 +225,14 @@ android {
             keyAlias 'androiddebugkey'
             keyPassword 'android'
         }
+        release {
+            if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
+                storeFile file(MYAPP_UPLOAD_STORE_FILE)
+                storePassword MYAPP_UPLOAD_STORE_PASSWORD
+                keyAlias MYAPP_UPLOAD_KEY_ALIAS
+                keyPassword MYAPP_UPLOAD_KEY_PASSWORD
+            }
+        }
     }
     buildTypes {
         debug {
@@ -232,7 +241,7 @@ android {
         release {
             // Caution! In production, you need to generate your own keystore file.
             // see https://reactnative.dev/docs/signed-apk-android.
-            signingConfig signingConfigs.debug
+            signingConfig signingConfigs.release
             minifyEnabled enableProguardInReleaseBuilds
             proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
         }