diff --git a/.github/actions/build-android-app/action.yml b/.github/actions/build-android-app/action.yml
new file mode 100644
index 0000000000..3afe2e0c5b
--- /dev/null
+++ b/.github/actions/build-android-app/action.yml
@@ -0,0 +1,119 @@
+name: Build Android app
+description: Build an Android demo app from this monorepo (with optional Expo prebuild)
+
+inputs:
+  app-path:
+    description: Path to the app workspace, relative to the repo root (e.g. apps/llm)
+    required: true
+  expo-prebuild:
+    description: Whether to run `expo prebuild --platform android` before the Gradle build
+    required: false
+    default: "true"
+  filter-name:
+    description: dorny/paths-filter filter name for this app+platform (e.g. llm-android). Used as the content-hash cache key so a previously-passing build can be skipped if nothing relevant has changed.
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Setup Node.js
+      uses: actions/setup-node@v6
+      with:
+        node-version-file: .nvmrc
+        cache: "yarn"
+
+    - name: Install root dependencies
+      shell: bash
+      run: yarn install --immutable
+
+    - name: Compute build hash
+      id: hash
+      shell: bash
+      run: |
+        h=$(node scripts/compute-app-hash.js "${{ inputs.filter-name }}")
+        echo "key=build-${{ inputs.filter-name }}-$h" >> "$GITHUB_OUTPUT"
+
+    - name: Lookup pass marker
+      id: cache
+      uses: actions/cache/restore@v4
+      with:
+        path: ${{ runner.temp }}/ci-marker
+        key: ${{ steps.hash.outputs.key }}
+        lookup-only: true
+
+    - name: Skip notice
+      if: steps.cache.outputs.cache-hit == 'true'
+      shell: bash
+      run: echo "Skipping build — ${{ inputs.filter-name }} already passed at this content hash."
+
+    - name: Free disk space
+      if: steps.cache.outputs.cache-hit != 'true'
+      shell: bash
+      run: |
+        sudo rm -rf /usr/share/dotnet
+        sudo rm -rf /opt/ghc
+        sudo rm -rf /opt/hostedtoolcache/CodeQL
+        sudo docker system prune -af
+
+    - name: Setup Java 17
+      if: steps.cache.outputs.cache-hit != 'true'
+      uses: actions/setup-java@v5
+      with:
+        distribution: "zulu"
+        java-version: 17
+        cache: "gradle"
+
+    - name: Install Expo CLI
+      if: steps.cache.outputs.cache-hit != 'true' && inputs.expo-prebuild == 'true'
+      shell: bash
+      run: |
+        npm install -g @expo/cli
+        echo "$(npm prefix -g)/bin" >> $GITHUB_PATH
+
+    - name: Generate native Android project
+      if: steps.cache.outputs.cache-hit != 'true' && inputs.expo-prebuild == 'true'
+      working-directory: ${{ inputs.app-path }}
+      shell: bash
+      run: |
+        rm -rf android
+        npx expo prebuild --platform android --no-install
+
+    - name: Cache Gradle
+      if: steps.cache.outputs.cache-hit != 'true'
+      uses: actions/cache@v5
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+          ${{ inputs.app-path }}/android/.gradle
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+
+    - name: Build app
+      if: steps.cache.outputs.cache-hit != 'true'
+      working-directory: ${{ inputs.app-path }}/android
+      shell: bash
+      run: |
+        ./gradlew assembleDebug \
+          --build-cache \
+          --parallel \
+          --daemon \
+          --configure-on-demand \
+          -PreactNativeArchitectures=arm64-v8a \
+          -Dorg.gradle.jvmargs="-Xmx4g -XX:+HeapDumpOnOutOfMemoryError" \
+          -Dorg.gradle.workers.max=4
+
+    - name: Save pass marker
+      if: steps.cache.outputs.cache-hit != 'true' && success()
+      shell: bash
+      run: |
+        mkdir -p "${{ runner.temp }}/ci-marker"
+        touch "${{ runner.temp }}/ci-marker/passed"
+
+    - name: Cache pass marker
+      if: steps.cache.outputs.cache-hit != 'true' && success()
+      uses: actions/cache/save@v4
+      with:
+        path: ${{ runner.temp }}/ci-marker
+        key: ${{ steps.hash.outputs.key }}
diff --git a/.github/actions/build-ios-app/action.yml b/.github/actions/build-ios-app/action.yml
new file mode 100644
index 0000000000..a09a6af3fa
--- /dev/null
+++ b/.github/actions/build-ios-app/action.yml
@@ -0,0 +1,118 @@
+name: Build iOS app
+description: Build an iOS demo app from this monorepo (with optional Expo prebuild)
+
+inputs:
+  app-path:
+    description: Path to the app workspace, relative to the repo root (e.g. apps/llm)
+    required: true
+  expo-prebuild:
+    description: Whether to run `expo prebuild --platform ios` before pod install
+    required: false
+    default: "true"
+  filter-name:
+    description: dorny/paths-filter filter name for this app+platform (e.g. llm-ios). Used as the content-hash cache key so a previously-passing build can be skipped if nothing relevant has changed.
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Setup Node.js
+      uses: actions/setup-node@v6
+      with:
+        node-version-file: .nvmrc
+        cache: "yarn"
+
+    - name: Install root dependencies
+      shell: bash
+      run: yarn install --immutable
+
+    - name: Compute build hash
+      id: hash
+      shell: bash
+      run: |
+        h=$(node scripts/compute-app-hash.js "${{ inputs.filter-name }}")
+        echo "key=build-${{ inputs.filter-name }}-$h" >> "$GITHUB_OUTPUT"
+
+    - name: Lookup pass marker
+      id: cache
+      uses: actions/cache/restore@v4
+      with:
+        path: ${{ runner.temp }}/ci-marker
+        key: ${{ steps.hash.outputs.key }}
+        lookup-only: true
+
+    - name: Skip notice
+      if: steps.cache.outputs.cache-hit == 'true'
+      shell: bash
+      run: echo "Skipping build — ${{ inputs.filter-name }} already passed at this content hash."
+
+    - name: Setup Xcode
+      if: steps.cache.outputs.cache-hit != 'true'
+      uses: maxim-lobanov/setup-xcode@v1
+      with:
+        xcode-version: latest-stable
+
+    - name: Install Expo CLI
+      if: steps.cache.outputs.cache-hit != 'true' && inputs.expo-prebuild == 'true'
+      shell: bash
+      run: |
+        npm install -g @expo/cli
+        echo "$(npm prefix -g)/bin" >> $GITHUB_PATH
+
+    - name: Generate native iOS project
+      if: steps.cache.outputs.cache-hit != 'true' && inputs.expo-prebuild == 'true'
+      working-directory: ${{ inputs.app-path }}
+      shell: bash
+      run: |
+        rm -rf ios
+        npx expo prebuild --platform ios --no-install
+
+    - name: Cache CocoaPods
+      if: steps.cache.outputs.cache-hit != 'true'
+      uses: actions/cache@v4
+      with:
+        path: |
+          ~/Library/Caches/CocoaPods
+          ${{ inputs.app-path }}/ios/Pods
+        key: ${{ runner.os }}-pods-${{ inputs.filter-name }}-${{ hashFiles(format('{0}/ios/Podfile.lock', inputs.app-path)) }}
+        restore-keys: |
+          ${{ runner.os }}-pods-${{ inputs.filter-name }}-
+
+    - name: Install CocoaPods dependencies
+      if: steps.cache.outputs.cache-hit != 'true'
+      working-directory: ${{ inputs.app-path }}/ios
+      shell: bash
+      run: pod install
+
+    - name: Build app
+      if: steps.cache.outputs.cache-hit != 'true'
+      working-directory: ${{ inputs.app-path }}/ios
+      shell: bash
+      run: |
+        WORKSPACE=$(ls -d *.xcworkspace | head -n 1)
+        SCHEME="${WORKSPACE%.xcworkspace}"
+        set -o pipefail && xcodebuild \
+          -workspace "$WORKSPACE" \
+          -scheme "$SCHEME" \
+          -sdk iphonesimulator \
+          -configuration Debug \
+          -destination 'generic/platform=iOS Simulator' \
+          build \
+          CODE_SIGNING_ALLOWED=NO \
+          -jobs $(sysctl -n hw.ncpu) \
+          COMPILER_INDEX_STORE_ENABLE=NO \
+          ONLY_ACTIVE_ARCH=YES | xcbeautify
+
+    - name: Save pass marker
+      if: steps.cache.outputs.cache-hit != 'true' && success()
+      shell: bash
+      run: |
+        mkdir -p "${{ runner.temp }}/ci-marker"
+        touch "${{ runner.temp }}/ci-marker/passed"
+
+    - name: Cache pass marker
+      if: steps.cache.outputs.cache-hit != 'true' && success()
+      uses: actions/cache/save@v4
+      with:
+        path: ${{ runner.temp }}/ci-marker
+        key: ${{ steps.hash.outputs.key }}
diff --git a/.github/workflows/build-android-llm-example.yml b/.github/workflows/build-android-llm-example.yml
deleted file mode 100644
index 3b4c95bf58..0000000000
--- a/.github/workflows/build-android-llm-example.yml
+++ /dev/null
@@ -1,79 +0,0 @@
-name: LLM Example app Android build check
-on:
-  pull_request:
-    paths:
-      - .github/workflows/build-android-llm-example.yml
-      - apps/llm/**
-      - packages/react-native-executorch/**
-  push:
-    branches:
-      - main
-    paths:
-      - .github/workflows/build-android-llm-example.yml
-      - apps/llm/**
-      - packages/react-native-executorch/**
-  workflow_dispatch:
-jobs:
-  build:
-    if: github.repository == 'software-mansion/react-native-executorch'
-    runs-on: ubuntu-latest
-    env:
-      WORKING_DIRECTORY: apps/llm
-    concurrency:
-      group: android-${{ github.ref }}
-      cancel-in-progress: true
-    steps:
-      - name: Free Disk Space (Manual)
-        run: |
-          sudo rm -rf /usr/share/dotnet
-          sudo rm -rf /opt/ghc
-          sudo rm -rf /opt/hostedtoolcache/CodeQL
-          sudo docker system prune -af
-
-      - name: Check out Git repository
-        uses: actions/checkout@v6
-        with:
-          submodules: recursive
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: "24"
-          cache: "yarn"
-      - name: Setup Java 17
-        uses: actions/setup-java@v5
-        with:
-          distribution: "zulu"
-          java-version: 17
-          cache: "gradle"
-      - name: Install root dependencies
-        run: yarn install --immutable
-      - name: Install Expo CLI
-        run: |
-          npm install -g @expo/cli
-          echo "$(npm prefix -g)/bin" >> $GITHUB_PATH
-      - name: Generate native Android project
-        working-directory: ${{ env.WORKING_DIRECTORY }}
-        run: |
-          rm -rf android
-          npx expo prebuild --platform android --no-install
-      - name: Cache Gradle
-        uses: actions/cache@v5
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-            ${{ env.WORKING_DIRECTORY }}/android/.gradle
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
-          restore-keys: |
-            ${{ runner.os }}-gradle-
-      - name: Build app
-        working-directory: ${{ env.WORKING_DIRECTORY }}/android
-        run: |
-          ./gradlew assembleDebug \
-            --build-cache \
-            --parallel \
-            --daemon \
-            --configure-on-demand \
-            -PreactNativeArchitectures=arm64-v8a \
-            -Dorg.gradle.jvmargs="-Xmx4g -XX:+HeapDumpOnOutOfMemoryError" \
-            -Dorg.gradle.workers.max=4
diff --git a/.github/workflows/build-apps.yml b/.github/workflows/build-apps.yml
new file mode 100644
index 0000000000..f59e1af6bd
--- /dev/null
+++ b/.github/workflows/build-apps.yml
@@ -0,0 +1,252 @@
+# Per-app build matrix gated by `dorny/paths-filter`. Adding a new model
+# directory, controller, or top-level module under packages/react-native-executorch/
+# probably means updating the filter block below — `core-shared` if it affects every
+# app, or one of the per-app `<app>-pkg` anchors otherwise. CI runs
+# `scripts/check-ci-filter-coverage.js` (in ci.yml's lint job) to flag uncovered
+# files so this stays accurate.
+name: Example apps build check
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+  workflow_dispatch:
+
+jobs:
+  detect-changes:
+    if: github.repository == 'software-mansion/react-native-executorch' && github.event.pull_request.draft != true
+    runs-on: ubuntu-latest
+    outputs:
+      android_apps: ${{ steps.matrix.outputs.android_apps }}
+      ios_apps: ${{ steps.matrix.outputs.ios_apps }}
+      bundle_apps: ${{ steps.matrix.outputs.bundle_apps }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Detect changed apps
+        id: filter
+        if: github.event_name != 'workflow_dispatch'
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            # Cross-platform shared infrastructure
+            core-shared: &core-shared
+              - .github/workflows/build-apps.yml
+              - packages/react-native-executorch/{scripts,third-party}/**
+              - packages/react-native-executorch/{package.json,tsconfig.json}
+              - packages/react-native-executorch/common/{ada,runner}/**
+              - packages/react-native-executorch/common/rnexecutorch/{Error,ErrorCodes,Log}.h
+              - packages/react-native-executorch/common/rnexecutorch/RnExecutorchInstaller.{cpp,h}
+              - packages/react-native-executorch/common/rnexecutorch/{data_processing,host_objects,jsi,metaprogramming,tests,threads,utils}/**
+              - packages/react-native-executorch/common/rnexecutorch/models/BaseModel.{cpp,h}
+              - packages/react-native-executorch/src/{common,constants,errors,native,types,utils}/**
+              - packages/react-native-executorch/src/index.ts
+              - packages/react-native-executorch/src/modules/{BaseModule.ts,general/**}
+              - packages/react-native-executorch/src/hooks/{general/**,useModule.ts,useModuleFactory.ts}
+              - "{package.json,yarn.lock}"
+            # Platform-specific shared
+            android-shared: &android-shared
+              - .github/actions/build-android-app/**
+              - packages/react-native-executorch/android/**
+            ios-shared: &ios-shared
+              - .github/actions/build-ios-app/**
+              - packages/react-native-executorch/ios/**
+              - packages/react-native-executorch/react-native-executorch.podspec
+            # Resource fetchers
+            expo-fetcher: &expo-fetcher
+              - packages/expo-resource-fetcher/**
+            bare-fetcher: &bare-fetcher
+              - packages/bare-resource-fetcher/**
+            # Per-app package paths (TS modules + C++ models for the app's domain)
+            llm-pkg: &llm-pkg
+              - packages/react-native-executorch/common/rnexecutorch/TokenizerModule.{cpp,h}
+              - packages/react-native-executorch/common/rnexecutorch/models/llm/**
+              - packages/react-native-executorch/src/modules/natural_language_processing/{LLMModule,TokenizerModule}.ts
+              - packages/react-native-executorch/src/hooks/natural_language_processing/{useLLM,useTokenizer}.ts
+              - packages/react-native-executorch/src/controllers/LLMController.ts
+            cv-pkg: &cv-pkg
+              - packages/react-native-executorch/common/rnexecutorch/models/VisionModel.{cpp,h}
+              - packages/react-native-executorch/common/rnexecutorch/models/{classification,instance_segmentation,object_detection,ocr,semantic_segmentation,style_transfer,text_to_image,vertical_ocr}/**
+              - packages/react-native-executorch/src/{modules,hooks}/computer_vision/**
+              - packages/react-native-executorch/src/controllers/{BaseOCRController,OCRController,VerticalOCRController}.ts
+            speech-pkg: &speech-pkg
+              - packages/react-native-executorch/common/pfft/**
+              - packages/react-native-executorch/common/rnexecutorch/TokenizerModule.{cpp,h}
+              - packages/react-native-executorch/common/rnexecutorch/models/{speech_to_text,text_to_speech,voice_activity_detection}/**
+              - packages/react-native-executorch/src/modules/natural_language_processing/{SpeechToTextModule,TextToSpeechModule,VADModule,TokenizerModule}.ts
+              - packages/react-native-executorch/src/hooks/natural_language_processing/{useSpeechToText,useTextToSpeech,useVAD,useTokenizer}.ts
+            text-embeddings-pkg: &text-embeddings-pkg
+              - packages/react-native-executorch/common/rnexecutorch/TokenizerModule.{cpp,h}
+              - packages/react-native-executorch/common/rnexecutorch/models/embeddings/**
+              - packages/react-native-executorch/src/modules/natural_language_processing/{TextEmbeddingsModule,TokenizerModule}.ts
+              - packages/react-native-executorch/src/modules/computer_vision/ImageEmbeddingsModule.ts
+              - packages/react-native-executorch/src/hooks/natural_language_processing/{useTextEmbeddings,useTokenizer}.ts
+              - packages/react-native-executorch/src/hooks/computer_vision/useImageEmbeddings.ts
+            # Per-app bundle: core + fetcher + pkg + app dir
+            llm-app: &llm-app
+              - *core-shared
+              - *expo-fetcher
+              - *llm-pkg
+              - apps/llm/**
+            computer-vision-app: &computer-vision-app
+              - *core-shared
+              - *expo-fetcher
+              - *cv-pkg
+              - apps/computer-vision/**
+            speech-app: &speech-app
+              - *core-shared
+              - *expo-fetcher
+              - *speech-pkg
+              - apps/speech/**
+            text-embeddings-app: &text-embeddings-app
+              - *core-shared
+              - *expo-fetcher
+              - *text-embeddings-pkg
+              - apps/text-embeddings/**
+            bare-rn-app: &bare-rn-app
+              - *core-shared
+              - *bare-fetcher
+              - *llm-pkg
+              - apps/bare-rn/**
+            # Final per-platform per-app filters (the only ones the matrix consumes)
+            llm-android: [*llm-app, *android-shared]
+            llm-ios: [*llm-app, *ios-shared]
+            computer-vision-android: [*computer-vision-app, *android-shared]
+            computer-vision-ios: [*computer-vision-app, *ios-shared]
+            speech-android: [*speech-app, *android-shared]
+            speech-ios: [*speech-app, *ios-shared]
+            text-embeddings-android: [*text-embeddings-app, *android-shared]
+            text-embeddings-ios: [*text-embeddings-app, *ios-shared]
+            bare-rn-android: [*bare-rn-app, *android-shared]
+            bare-rn-ios: [*bare-rn-app, *ios-shared]
+
+      - name: Compute matrices
+        id: matrix
+        run: |
+          all='["llm","computer-vision","speech","text-embeddings","bare-rn"]'
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            echo "android_apps=$all" >> "$GITHUB_OUTPUT"
+            echo "ios_apps=$all" >> "$GITHUB_OUTPUT"
+            echo "bundle_apps=$all" >> "$GITHUB_OUTPUT"
+          else
+            changes='${{ steps.filter.outputs.changes }}'
+            android_apps=$(echo "$changes" | jq -c '[.[] | select(endswith("-android")) | sub("-android$"; "")]')
+            ios_apps=$(echo "$changes" | jq -c '[.[] | select(endswith("-ios")) | sub("-ios$"; "")]')
+            bundle_apps=$(echo "$changes" | jq -c '[.[] | select(endswith("-app")) | sub("-app$"; "")]')
+            echo "android_apps=$android_apps" >> "$GITHUB_OUTPUT"
+            echo "ios_apps=$ios_apps" >> "$GITHUB_OUTPUT"
+            echo "bundle_apps=$bundle_apps" >> "$GITHUB_OUTPUT"
+          fi
+
+  bundle:
+    needs: detect-changes
+    if: needs.detect-changes.outputs.bundle_apps != '[]' && needs.detect-changes.outputs.bundle_apps != ''
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        app: ${{ fromJSON(needs.detect-changes.outputs.bundle_apps) }}
+        platform: [android, ios]
+    concurrency:
+      group: bundle-${{ matrix.platform }}-${{ matrix.app }}-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Setup
+        uses: ./.github/actions/setup
+      - name: Compute bundle hash
+        id: hash
+        run: |
+          h=$(node scripts/compute-app-hash.js "${{ matrix.app }}-app")
+          echo "key=bundle-${{ matrix.platform }}-${{ matrix.app }}-$h" >> "$GITHUB_OUTPUT"
+      - name: Lookup pass marker
+        id: cache
+        uses: actions/cache/restore@v4
+        with:
+          path: ${{ runner.temp }}/ci-marker
+          key: ${{ steps.hash.outputs.key }}
+          lookup-only: true
+      - name: Skip notice
+        if: steps.cache.outputs.cache-hit == 'true'
+        run: echo "Skipping bundle — bundle-${{ matrix.platform }}-${{ matrix.app }} already passed at this content hash."
+      - name: Build workspace packages
+        if: steps.cache.outputs.cache-hit != 'true' && matrix.app == 'bare-rn'
+        run: yarn workspaces foreach --all --topological-dev run prepare
+      - name: Build workspace packages
+        if: steps.cache.outputs.cache-hit != 'true' && matrix.app == 'bare-rn'
+        run: yarn workspaces foreach --all --topological-dev run prepare
+      - name: Bundle JS for ${{ matrix.platform }}
+        if: steps.cache.outputs.cache-hit != 'true'
+        working-directory: apps/${{ matrix.app }}
+        run: |
+          if [ "${{ matrix.app }}" = "bare-rn" ]; then
+            npx react-native bundle \
+              --platform ${{ matrix.platform }} \
+              --entry-file index.js \
+              --bundle-output /tmp/bundle.js \
+              --dev false
+          else
+            npx expo export \
+              --platform ${{ matrix.platform }} \
+              --output-dir /tmp/expo-export
+          fi
+      - name: Save pass marker
+        if: steps.cache.outputs.cache-hit != 'true' && success()
+        run: |
+          mkdir -p "${{ runner.temp }}/ci-marker"
+          touch "${{ runner.temp }}/ci-marker/passed"
+      - name: Cache pass marker
+        if: steps.cache.outputs.cache-hit != 'true' && success()
+        uses: actions/cache/save@v4
+        with:
+          path: ${{ runner.temp }}/ci-marker
+          key: ${{ steps.hash.outputs.key }}
+
+  build-android:
+    needs: detect-changes
+    if: needs.detect-changes.outputs.android_apps != '[]' && needs.detect-changes.outputs.android_apps != ''
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        app: ${{ fromJSON(needs.detect-changes.outputs.android_apps) }}
+    concurrency:
+      group: android-${{ matrix.app }}-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+      - name: Build Android app
+        uses: ./.github/actions/build-android-app
+        with:
+          app-path: apps/${{ matrix.app }}
+          expo-prebuild: ${{ matrix.app == 'bare-rn' && 'false' || 'true' }}
+          filter-name: ${{ matrix.app }}-android
+
+  build-ios:
+    needs: detect-changes
+    if: needs.detect-changes.outputs.ios_apps != '[]' && needs.detect-changes.outputs.ios_apps != ''
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        app: ${{ fromJSON(needs.detect-changes.outputs.ios_apps) }}
+    concurrency:
+      group: ios-${{ matrix.app }}-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+      - name: Build iOS app
+        uses: ./.github/actions/build-ios-app
+        with:
+          app-path: apps/${{ matrix.app }}
+          expo-prebuild: ${{ matrix.app == 'bare-rn' && 'false' || 'true' }}
+          filter-name: ${{ matrix.app }}-ios
diff --git a/.github/workflows/build-ios-llm-example.yml b/.github/workflows/build-ios-llm-example.yml
deleted file mode 100644
index 4a2b2b9b99..0000000000
--- a/.github/workflows/build-ios-llm-example.yml
+++ /dev/null
@@ -1,66 +0,0 @@
-name: LLM Example app iOS build check
-on:
-  push:
-    branches:
-      - main
-    paths:
-      - ".github/workflows/build-ios-llm-example.yml"
-      - "*.podspec"
-      - "apps/llm/**"
-      - "packages/react-native-executorch/**"
-  pull_request:
-    paths:
-      - ".github/workflows/build-ios-llm-example.yml"
-      - "*.podspec"
-      - "apps/llm/**"
-      - "packages/react-native-executorch/**"
-  workflow_dispatch:
-jobs:
-  build:
-    if: github.repository == 'software-mansion/react-native-executorch'
-    runs-on: macos-latest
-    concurrency:
-      group: ios-${{ github.ref }}
-      cancel-in-progress: true
-    steps:
-      - uses: maxim-lobanov/setup-xcode@v1
-        with:
-          xcode-version: latest-stable
-      - name: Check out Git repository
-        uses: actions/checkout@v6
-        with:
-          submodules: recursive
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version: "24"
-          cache: "yarn"
-      - name: Install root dependencies
-        run: yarn install --immutable
-      - name: Install Expo CLI
-        run: |
-          npm install -g @expo/cli
-          echo "$(npm prefix -g)/bin" >> $GITHUB_PATH
-      - name: Generate native iOS project
-        working-directory: apps/llm
-        run: |
-          rm -rf ios
-          npx expo prebuild --platform ios --no-install
-      - name: Install CocoaPods dependencies
-        working-directory: apps/llm/ios
-        run: |
-          pod install
-      - name: Build app
-        working-directory: apps/llm/ios
-        run: |
-          set -o pipefail && xcodebuild \
-            -workspace llm.xcworkspace \
-            -scheme llm \
-            -sdk iphonesimulator \
-            -configuration Debug \
-            -destination 'platform=iOS Simulator,name=iPhone 16 Pro' \
-            build \
-            CODE_SIGNING_ALLOWED=NO \
-            -jobs $(sysctl -n hw.ncpu) \
-            COMPILER_INDEX_STORE_ENABLE=NO \
-            ONLY_ACTIVE_ARCH=YES | xcbeautify
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 96fd27ad65..ab549cbcdd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,15 +3,25 @@ on:
   push:
     branches:
       - main
+    paths-ignore:
+      - docs/**
+      - readmes/**
+      - "**.md"
   pull_request:
     branches:
       - main
+    types: [opened, synchronize, reopened, ready_for_review]
+    paths-ignore:
+      - docs/**
+      - readmes/**
+      - "**.md"
   merge_group:
     types:
       - checks_requested
   workflow_dispatch:
 jobs:
   lint:
+    if: github.event.pull_request.draft != true
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -23,10 +33,14 @@ jobs:
       - name: Lint files
         run: yarn lint
 
+      - name: Check CI filter coverage
+        run: node scripts/check-ci-filter-coverage.js
+
       - name: Typecheck files
         run: yarn workspaces foreach --all --topological-dev run prepare && yarn typecheck
 
   build-library:
+    if: github.event.pull_request.draft != true
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
diff --git a/.github/workflows/docs-build-check.yml b/.github/workflows/docs-build-check.yml
index eec9d3a4a3..ed3a2e332e 100644
--- a/.github/workflows/docs-build-check.yml
+++ b/.github/workflows/docs-build-check.yml
@@ -10,13 +10,14 @@ on:
   pull_request:
     branches:
       - main
+    types: [opened, synchronize, reopened, ready_for_review]
     paths:
       - 'docs/**'
       - '.github/workflows/docs-build-check.yml'
   workflow_dispatch:
 jobs:
   check:
-    if: github.repository == 'software-mansion/react-native-executorch'
+    if: github.repository == 'software-mansion/react-native-executorch' && github.event.pull_request.draft != true
     runs-on: ubuntu-latest
     concurrency:
       group: docs-check-${{ github.ref }}
diff --git a/.github/workflows/test-bare-rn.yml b/.github/workflows/test-bare-rn.yml
new file mode 100644
index 0000000000..1c0ec656b7
--- /dev/null
+++ b/.github/workflows/test-bare-rn.yml
@@ -0,0 +1,46 @@
+name: bare-rn Jest tests
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - .github/workflows/test-bare-rn.yml
+      - apps/bare-rn/**
+      - packages/bare-resource-fetcher/**
+      - packages/react-native-executorch/src/**
+      - packages/react-native-executorch/package.json
+      - packages/react-native-executorch/tsconfig.json
+      - package.json
+      - yarn.lock
+  pull_request:
+    types: [opened, synchronize, reopened, ready_for_review]
+    paths:
+      - .github/workflows/test-bare-rn.yml
+      - apps/bare-rn/**
+      - packages/bare-resource-fetcher/**
+      - packages/react-native-executorch/src/**
+      - packages/react-native-executorch/package.json
+      - packages/react-native-executorch/tsconfig.json
+      - package.json
+      - yarn.lock
+  workflow_dispatch:
+
+jobs:
+  test:
+    if: github.repository == 'software-mansion/react-native-executorch' && github.event.pull_request.draft != true
+    runs-on: ubuntu-latest
+    concurrency:
+      group: test-bare-rn-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Build workspace packages
+        run: yarn workspaces foreach --all --topological-dev run prepare
+
+      - name: Run Jest
+        run: yarn workspace bare-rn test
diff --git a/apps/bare-rn/__mocks__/background-downloader.js b/apps/bare-rn/__mocks__/background-downloader.js
new file mode 100644
index 0000000000..034ce1e1d7
--- /dev/null
+++ b/apps/bare-rn/__mocks__/background-downloader.js
@@ -0,0 +1,3 @@
+module.exports = {
+  setConfig: jest.fn(),
+};
diff --git a/apps/bare-rn/__mocks__/react-native-executorch-bare-resource-fetcher.js b/apps/bare-rn/__mocks__/react-native-executorch-bare-resource-fetcher.js
new file mode 100644
index 0000000000..a2fc0d0ee1
--- /dev/null
+++ b/apps/bare-rn/__mocks__/react-native-executorch-bare-resource-fetcher.js
@@ -0,0 +1,3 @@
+module.exports = {
+  BareResourceFetcher: {},
+};
diff --git a/apps/bare-rn/__mocks__/react-native-executorch.js b/apps/bare-rn/__mocks__/react-native-executorch.js
new file mode 100644
index 0000000000..5d7b39a2f7
--- /dev/null
+++ b/apps/bare-rn/__mocks__/react-native-executorch.js
@@ -0,0 +1,14 @@
+module.exports = {
+  initExecutorch: jest.fn(),
+  useLLM: () => ({
+    isReady: false,
+    isGenerating: false,
+    response: '',
+    messageHistory: [],
+    downloadProgress: 0,
+    error: null,
+    sendMessage: jest.fn(),
+    interrupt: jest.fn(),
+  }),
+  LLAMA3_2_1B_SPINQUANT: 'LLAMA3_2_1B_SPINQUANT',
+};
diff --git a/apps/bare-rn/jest.config.js b/apps/bare-rn/jest.config.js
index 8eb675e9bc..ee30550a84 100644
--- a/apps/bare-rn/jest.config.js
+++ b/apps/bare-rn/jest.config.js
@@ -1,3 +1,11 @@
 module.exports = {
   preset: 'react-native',
+  moduleNameMapper: {
+    '^react-native-executorch$':
+      '<rootDir>/__mocks__/react-native-executorch.js',
+    '^react-native-executorch-bare-resource-fetcher$':
+      '<rootDir>/__mocks__/react-native-executorch-bare-resource-fetcher.js',
+    '^@kesha-antonov/react-native-background-downloader$':
+      '<rootDir>/__mocks__/background-downloader.js',
+  },
 };
diff --git a/scripts/check-ci-filter-coverage.js b/scripts/check-ci-filter-coverage.js
new file mode 100644
index 0000000000..55805ce3df
--- /dev/null
+++ b/scripts/check-ci-filter-coverage.js
@@ -0,0 +1,63 @@
+#!/usr/bin/env node
+// Verifies every source file under packages/react-native-executorch/ is matched by
+// at least one filter in .github/workflows/build-apps.yml. Prevents new files (e.g.
+// a new model directory or controller) from silently slipping past CI's per-app
+// path triggers.
+
+const fs = require('fs');
+const cp = require('child_process');
+const yaml = require('js-yaml');
+const picomatch = require('picomatch');
+
+const WORKFLOW = '.github/workflows/build-apps.yml';
+const PACKAGE_ROOT = 'packages/react-native-executorch/';
+
+// Files that legitimately don't belong to any per-app or shared filter.
+const ALLOWLIST = new Set([
+  'packages/react-native-executorch/.gitignore',
+  'packages/react-native-executorch/.watchmanconfig',
+  'packages/react-native-executorch/tsconfig.doc.json',
+]);
+
+const flatten = (x) => (Array.isArray(x) ? x.flatMap(flatten) : [x]);
+
+const wf = yaml.load(fs.readFileSync(WORKFLOW, 'utf8'));
+const filtersStr = wf.jobs['detect-changes'].steps.find(
+  (s) => s.id === 'filter'
+).with.filters;
+const filters = yaml.load(filtersStr);
+
+const patterns = new Set();
+for (const v of Object.values(filters)) {
+  flatten(v)
+    .filter((p) => typeof p === 'string')
+    .forEach((p) => patterns.add(p));
+}
+const matchers = [...patterns].map((p) => picomatch(p, { dot: true }));
+const matchAny = (file) => matchers.some((m) => m(file));
+
+const tracked = cp
+  .execSync('git ls-files', { encoding: 'utf8' })
+  .trim()
+  .split('\n');
+const orphans = tracked
+  .filter((f) => f.startsWith(PACKAGE_ROOT))
+  .filter((f) => !ALLOWLIST.has(f))
+  .filter((f) => !matchAny(f));
+
+if (orphans.length > 0) {
+  console.error(
+    `\n${WORKFLOW} does not cover ${orphans.length} file(s) under ${PACKAGE_ROOT}:\n`
+  );
+  orphans.forEach((f) => console.error('  ' + f));
+  console.error(
+    `\nAdd them to the appropriate filter (core-shared, llm-pkg, cv-pkg, speech-pkg,\n` +
+      `text-embeddings-pkg, or one of the platform-shared blocks). If the file is\n` +
+      `genuinely build-irrelevant, add it to ALLOWLIST in scripts/check-ci-filter-coverage.js.`
+  );
+  process.exit(1);
+}
+
+console.log(
+  `OK: every file under ${PACKAGE_ROOT} is covered by build-apps.yml.`
+);
diff --git a/scripts/compute-app-hash.js b/scripts/compute-app-hash.js
new file mode 100644
index 0000000000..bfc3df3842
--- /dev/null
+++ b/scripts/compute-app-hash.js
@@ -0,0 +1,70 @@
+#!/usr/bin/env node
+// Computes a stable content hash of every tracked file matched by a given
+// filter in .github/workflows/build-apps.yml. Used as a cache key in the
+// build-apps matrix so a previously-passing app/platform cell can be skipped
+// when nothing relevant has changed since.
+
+const fs = require('fs');
+const cp = require('child_process');
+const crypto = require('crypto');
+const yaml = require('js-yaml');
+const picomatch = require('picomatch');
+
+// Files that the per-app filters reference for trigger purposes but that
+// should not invalidate cached build markers. The workflow file itself sits in
+// core-shared so editing it triggers CI on every app, but the vast majority of
+// edits are orchestration (filter paths, matrix shape, concurrency, triggers)
+// and don't change build behavior. Excluding it from the hash means workflow
+// edits re-run the matrix but each cell hits its existing marker and skips.
+//
+// Caveat: workflow edits that DO change build behavior — `with:` inputs to a
+// composite, `runs-on:`, an `env:` var, an action's pinned version — won't be
+// caught here. Force-clear caches via the GitHub Actions UI when you make one.
+const HASH_EXCLUDE = new Set(['.github/workflows/build-apps.yml']);
+
+const filterName = process.argv[2];
+if (!filterName) {
+  console.error('Usage: compute-app-hash.js <filter-name>');
+  process.exit(1);
+}
+
+const wf = yaml.load(
+  fs.readFileSync('.github/workflows/build-apps.yml', 'utf8')
+);
+const filtersStr = wf.jobs['detect-changes'].steps.find(
+  (s) => s.id === 'filter'
+).with.filters;
+const filters = yaml.load(filtersStr);
+
+const flatten = (x) => (Array.isArray(x) ? x.flatMap(flatten) : [x]);
+const patterns = flatten(filters[filterName]).filter(
+  (p) => typeof p === 'string'
+);
+if (patterns.length === 0) {
+  console.error(`Unknown filter: ${filterName}`);
+  process.exit(1);
+}
+const matchers = patterns.map((p) => picomatch(p, { dot: true }));
+const matchAny = (file) => matchers.some((m) => m(file));
+
+// `git ls-files -s` outputs: <mode> <hash> <stage>\t<path>
+// The hash is a content-addressable git blob hash, so the same content always
+// produces the same line — the SHA256 below is stable across machines.
+const lines = cp
+  .execSync('git ls-files -s', { encoding: 'utf8' })
+  .trim()
+  .split('\n')
+  .filter((line) => {
+    const tabIdx = line.indexOf('\t');
+    if (tabIdx === -1) return false;
+    const path = line.slice(tabIdx + 1);
+    return !HASH_EXCLUDE.has(path) && matchAny(path);
+  })
+  .sort();
+
+const sha = crypto
+  .createHash('sha256')
+  .update(lines.join('\n'))
+  .digest('hex')
+  .slice(0, 16);
+console.log(sha);