diff --git a/.github/workflows/ios-ci.yml b/.github/workflows/ios-ci.yml
index 46ae130e79..f0410af32f 100644
--- a/.github/workflows/ios-ci.yml
+++ b/.github/workflows/ios-ci.yml
@@ -23,12 +23,12 @@ jobs:
       - name: Install Pods
         run: ${{matrix.extraEnv}} pod install
         working-directory: example/ios
+      # The job builds and never boots the app, so it takes the generic
+      # simulator destination. Naming one device tied this job to whichever
+      # simulators the runner image happened to ship, and it broke when
+      # `iPhone 16` left the image.
       - name: Build iOS test app
         run: |
-          device_name='iPhone 16'
-          device=$(xcrun simctl list devices "${device_name}" available | grep "${device_name} (")
-          re='\(([-0-9A-Fa-f]+)\)'
-          [[ $device =~ $re ]] || exit 1
-          xcodebuild -workspace WebviewExample.xcworkspace -scheme ReactTestApp -destination "platform=iOS Simulator,id=${BASH_REMATCH[1]}" CODE_SIGNING_ALLOWED=NO COMPILER_INDEX_STORE_ENABLE=NO build
+          xcodebuild -workspace WebviewExample.xcworkspace -scheme ReactTestApp -destination 'generic/platform=iOS Simulator' CODE_SIGNING_ALLOWED=NO COMPILER_INDEX_STORE_ENABLE=NO build
         working-directory: example/ios
     timeout-minutes: 60
diff --git a/example/android/gradle.properties b/example/android/gradle.properties
index ac1b10a723..fcdf4893af 100644
--- a/example/android/gradle.properties
+++ b/example/android/gradle.properties
@@ -11,7 +11,7 @@
 # particularly useful for configuring JVM memory settings for build performance.
 # This does not affect the JVM settings for the Gradle client VM.
 # The default is `-Xmx512m -XX:MaxMetaspaceSize=256m`.
-org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xmx4g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
 
 # When configured, Gradle will fork up to org.gradle.workers.max JVMs to execute
 # projects in parallel. To learn more about parallel task execution, see the
@@ -24,8 +24,12 @@ org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryEr
 # Android operating system, and which are packaged with your app's APK
 # https://developer.android.com/topic/libraries/support-library/androidx-rn
 android.useAndroidX=true
-# Automatically convert third-party libraries to use AndroidX
-android.enableJetifier=true
+# Automatically convert third-party libraries to use AndroidX. React Native 0.73
+# and its dependencies are AndroidX already, and the conversion rewrites every
+# class of every AAR, which is what ran the build out of heap. Run
+# `./gradlew checkJetifier` if a future dependency looks like it needs the
+# conversion back.
+android.enableJetifier=false
 
 # Version of Flipper to use with React Native. Default value is whatever React
 # Native defaults to. To disable Flipper, set it to `false`.