Experiment: Expo SDK 57 example with precompiled RN XCFrameworks + CI build timing

.github/workflows/bare-example.yml

@@ -0,0 +1,124 @@
+name: Bare example
+# Build-only verification of the bare RN example (old RN version, no Expo).
+# Behavioral coverage runs against the Expo 57 example in ci.yml; this keeps
+# the non-Expo integration compiling without paying for it on every PR.
+on:
+  workflow_dispatch:
+  schedule:
+    # Weekly, Monday 06:00 UTC
+    - cron: '0 6 * * 1'
+  pull_request:
+    paths:
+      - 'example/**'
+
+jobs:
+  build-bare-ios:
+    # Pinned to macos-15 — see build-ios in ci.yml.
+    runs-on: macos-15
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        backend: [experimental, legacy]
+    env:
+      XCODE_VERSION: 26.3
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Use appropriate Xcode version
+        uses: maxim-lobanov/setup-xcode@v1
+        with:
+          xcode-version: ${{ env.XCODE_VERSION }}
+
+      - name: Restore cocoapods
+        id: cocoapods-cache
+        uses: actions/cache/restore@v4
+        with:
+          path: example/ios/Pods
+          key: ${{ runner.os }}-bare-cocoapods-${{ matrix.backend }}-${{ hashFiles('package.json', '*.podspec', 'example/ios/Podfile') }}
+          restore-keys: |
+            ${{ runner.os }}-bare-cocoapods-${{ matrix.backend }}-
+
+      - name: Install cocoapods
+        working-directory: example
+        env:
+          USE_RIVE_LEGACY: ${{ matrix.backend == 'legacy' && '1' || '' }}
+        run: |
+          bundle install
+          rm -f ios/Podfile.lock ios/Pods/Manifest.lock
+          bundle exec pod install --project-directory=ios
+
+      - name: Save cocoapods cache
+        if: steps.cocoapods-cache.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: example/ios/Pods
+          key: ${{ steps.cocoapods-cache.outputs.cache-primary-key }}
+
+      - name: Build iOS app
+        working-directory: example/ios
+        run: |
+          set -o pipefail && xcodebuild \
+            -derivedDataPath build \
+            -workspace RiveExample.xcworkspace \
+            -scheme RiveExample \
+            -sdk iphonesimulator \
+            -configuration Debug \
+            build \
+            CODE_SIGNING_ALLOWED=NO
+
+  build-bare-android:
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    strategy:
+      fail-fast: false
+      matrix:
+        backend: [experimental, legacy]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Install JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+
+      - name: Finalize Android SDK
+        run: |
+          /bin/bash -c "yes | $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --licenses > /dev/null"
+          for i in 1 2 3; do
+            $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager "ndk;27.1.12297006" && break
+            echo "NDK install attempt $i failed, retrying..."
+            sleep 10
+          done
+
+      - name: Enable legacy Rive backend
+        if: matrix.backend == 'legacy'
+        run: |
+          printf '\nUSE_RIVE_LEGACY=true\n' >> example/android/gradle.properties
+
+      - name: Cache Gradle
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/wrapper
+            ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-bare-${{ hashFiles('example/android/gradle/wrapper/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-bare-
+            ${{ runner.os }}-gradle-
+
+      - name: Build Android app
+        working-directory: example/android
+        env:
+          JAVA_OPTS: "-XX:MaxHeapSize=6g"
+        run: |
+          ./gradlew assembleDebug --no-daemon --console=plain -PreactNativeArchitectures=x86_64