Add Flutter text to speech demo (#1087)

+name: flutter-android
+
+on:
+  push:
+    branches:
+      - flutter
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+
+  workflow_dispatch:
+
+concurrency:
+  group: flutter-android-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  tts:
+    name: tts ${{ matrix.index }}/${{ matrix.total }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        total: ["15"]
+        index: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14"]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Display NDK HOME
+        shell: bash
+        run: |
+          echo "ANDROID_NDK_LATEST_HOME: ${ANDROID_NDK_LATEST_HOME}"
+          ls -lh ${ANDROID_NDK_LATEST_HOME}
+
+      - name: Setup build tool version variable
+        shell: bash
+        run: |
+          echo "---"
+          ls -lh /usr/local/lib/android/
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk
+          echo "---"
+
+          ls -lh /usr/local/lib/android/sdk/build-tools
+          echo "---"
+
+          BUILD_TOOL_VERSION=$(ls /usr/local/lib/android/sdk/build-tools/ | tail -n 1)
+          echo "BUILD_TOOL_VERSION=$BUILD_TOOL_VERSION" >> $GITHUB_ENV
+          echo "Last build tool version is: $BUILD_TOOL_VERSION"
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip jinja2 iso639-lang
+
+      - name: Install deps
+        shell: bash
+        run: |
+          sudo apt-get update -y
+          sudo apt-get install -y build-essential jq git cmake
+          sudo apt-get install -y curl
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - name: Install ninja
+        shell: bash
+        run: |
+          sudo apt-get install -y ninja-build
+
+      - name: Display ninja version
+        shell: bash
+        run: |
+          ninja --version
+          ninja --help || true
+          which ninja
+
+      - name: Display PWD
+        shell: bash
+        run: |
+          echo "pwd: $PWD"
+          ls -lh
+
+      - name: Display machine info
+        shell: bash
+        run: |
+          uname -a
+
+      - name: Display flutter info
+        shell: bash
+        run: |
+          which flutter
+          which dart
+
+          flutter --version
+
+          git config --global --add safe.directory /__t/flutter-Linux-*/flutter || true
+
+          flutter --version
+
+          dart --version
+          flutter doctor
+
+      - name: Install libgtk-3-dev
+        shell: bash
+        run: |
+          sudo apt install -y libgtk-3-dev tree clang pkg-config
+
+      - name: Display flutter info (2)
+        shell: bash
+        run: |
+          which flutter
+          which dart
+
+          flutter --version
+          dart --version
+          flutter doctor
+
+          cd ..
+
+      - name: Build flutter
+        shell: bash
+        run: |
+          cd scripts/flutter
+
+          total=${{ matrix.total }}
+          index=${{ matrix.index }}
+
+          ./generate-tts.py --total $total --index $index
+
+          chmod +x *.sh
+          ./build-android-tts.sh
+
+          cd ../../
+
+          ls -lh *.apk
+
+      - name: Display generated files
+        shell: bash
+        run: |
+          ls -lh *.apk
+
+          mkdir apks
+
+          mv -v *.apk ./apks
+
+      # https://github.com/marketplace/actions/sign-android-release
+      - uses: r0adkll/sign-android-release@v1
+        name: Sign app APK
+        with:
+          releaseDirectory: ./apks
+          signingKeyBase64: ${{ secrets.ANDROID_SIGNING_KEY }}
+          alias: ${{ secrets.ANDROID_SIGNING_KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.ANDROID_SIGNING_KEY_STORE_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: ${{ env.BUILD_TOOL_VERSION }}
+
+      - name: Display APK after signing
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Rename APK after signing
+        shell: bash
+        run: |
+          cd apks
+          rm -fv signingKey.jks
+          rm -fv *.apk.idsig
+          rm -fv *-aligned.apk
+
+          all_apks=$(ls -1 *-signed.apk)
+          echo "----"
+          echo $all_apks
+          echo "----"
+          for apk in ${all_apks[@]}; do
+            n=$(echo $apk | sed -e s/-signed//)
+            mv -v $apk $n
+          done
+
+          cd ..
+
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Display APK after rename
+        shell: bash
+        run: |
+          ls -lh ./apks/
+          du -h -d1 .
+
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+
+            dst=flutter/tts/android/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+
+            cp -v ../apks/*.apk $dst
+
+            git status
+            git lfs track "*.apk"
+            git add .
+            git commit -m "add more files"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-flutter main

@@ -6,23 +6,6 @@ on:
       - flutter
       - flutter
     tags:
     tags:
       - 'v[0-9]+.[0-9]+.[0-9]+*'
       - 'v[0-9]+.[0-9]+.[0-9]+*'
-    paths:
-      - '.github/workflows/flutter-linux.yaml'
-      - 'CMakeLists.txt'
-      - 'cmake/**'
-      - 'sherpa-onnx/csrc/*'
-      - 'sherpa-onnx/c-api/*'
-      - 'sherpa-onnx/flutter/**'
-  pull_request:
-    branches:
-      - master
-    paths:
-      - '.github/workflows/flutter-linux.yaml'
-      - 'CMakeLists.txt'
-      - 'cmake/**'
-      - 'sherpa-onnx/csrc/*'
-      - 'sherpa-onnx/c-api/*'
-      - 'sherpa-onnx/flutter/**'
 
 
   workflow_dispatch:
   workflow_dispatch:
 
 
@@ -30,19 +13,26 @@ concurrency:
   group: flutter-linux-${{ github.ref }}
   group: flutter-linux-${{ github.ref }}
   cancel-in-progress: true
   cancel-in-progress: true
 
 
+# See https://github.com/actions/checkout/issues/1590#issuecomment-2207052044 
+# and
+# https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/
+env:
+  ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+
 jobs:
 jobs:
-  flutter_linux:
-    if: false
-    name: linux
+  tts:
+    name: tts ${{ matrix.index }}/${{ matrix.total }}
     runs-on: ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     container: ubuntu:18.04
     container: ubuntu:18.04
     strategy:
     strategy:
       fail-fast: false
       fail-fast: false
       matrix:
       matrix:
         os: [ubuntu-latest]
         os: [ubuntu-latest]
+        total: ["20"]
+        index: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"]
 
 
     steps:
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
         with:
           fetch-depth: 0
           fetch-depth: 0
 
 
@@ -50,8 +40,98 @@ jobs:
         shell: bash
         shell: bash
         run: |
         run: |
           apt-get update -y
           apt-get update -y
-          apt-get install -y build-essential jq git cmake
+          apt-get install -y bc curl git
+
+      - name: Show files
+        shell: bash
+        run: |
+          git config --global --add safe.directory /__w/sherpa-onnx/sherpa-onnx
+
+          ls -lha
+
+          git init
+          git add .
+          git config user.name "foo"
+          git config user.email "bar@g.com"
+          git commit -m "test"
+
+      - name: Generate tts script
+        uses: addnab/docker-run-action@v3
+        with:
+            image: quay.io/pypa/manylinux2014_x86_64
+            options: |
+              --volume ${{ github.workspace }}/:/home/runner/work/sherpa-onnx/sherpa-onnx
+            shell: bash
+            run: |
+              uname -a
+              gcc --version
+              cmake --version
+              cat /etc/*release
+              id
+              pwd
+
+              find /opt -name "python*"
+              export PATH=/opt/_internal/cpython-3.8.19/bin:$PATH
+              python3 --version
+              python3 -m pip install --upgrade pip jinja2 iso639-lang
+
+              total=${{ matrix.total }}
+              index=${{ matrix.index }}
+
+              cd /home/runner/work/sherpa-onnx/sherpa-onnx
+              cd scripts/flutter
+              ls -lh
+              echo "---"
+              python3 ./generate-tts.py --total $total --index $index
+              chmod +x *.sh
+              ls -lh
+
+      # Ubuntu 18.04 uses cmake 3.10 by default, but we need cmake >= 3.11
+      - name: Install cmake
+        shell: bash
+        run: |
+          # see https://askubuntu.com/questions/355565/how-do-i-install-the-latest-version-of-cmake-from-the-command-line
+          version=3.28
+          build=1
+          ## don't modify from here
+          limit=3.20
+          result=$(echo "$version >= $limit" | bc -l)
+          os=$([ "$result" == 1 ] && echo "linux" || echo "Linux")
+          mkdir ~/temp
+          cd ~/temp
+          curl -SL -O https://cmake.org/files/v$version/cmake-$version.$build-$os-x86_64.sh
+          mkdir /opt/cmake
+          sh cmake-$version.$build-$os-x86_64.sh --skip-license --prefix=/opt/cmake
+          ln -s /opt/cmake/bin/cmake /usr/local/bin/cmake
+
+          echo "/opt/cmake/bin" >> $GITHUB_PATH
+
+      - name: Display cmake version
+        shell: bash
+        run: |
+          cmake --version
+          which cmake
+
+      - name: Install deps
+        shell: bash
+        run: |
+          apt-get update -y
+          apt-get install -y build-essential jq git python3-pip
           apt-get install -y curl
           apt-get install -y curl
+          apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libunwind-dev
+
+      - name: Show files
+        shell: bash
+        run: |
+          echo "pwd: $PWD"
+          ls -lh
+          echo "---"
+          ls -lh scripts/flutter
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip jinja2 iso639-lang dataclasses
 
 
       - name: Setup Flutter SDK
       - name: Setup Flutter SDK
         uses: flutter-actions/setup-flutter@v3
         uses: flutter-actions/setup-flutter@v3
@@ -112,112 +192,88 @@ jobs:
           dart --version
           dart --version
           flutter doctor
           flutter doctor
 
 
-      - name: Build sherpa-onnx
-        uses: addnab/docker-run-action@v3
-        with:
-            image: quay.io/pypa/manylinux2014_x86_64
-            options: |
-              --volume ${{ github.workspace }}/:/home/runner/work/sherpa-onnx/sherpa-onnx
-            shell: bash
-            run: |
-              uname -a
-              gcc --version
-              cmake --version
-              cat /etc/*release
-              id
-              pwd
-
-              cd /home/runner/work/sherpa-onnx/sherpa-onnx
-
-              mkdir build
-              cd build
-
-              cmake \
-                -D BUILD_SHARED_LIBS=ON \
-                -DSHERPA_ONNX_ENABLE_PORTAUDIO=OFF \
-                -DSHERPA_ONNX_ENABLE_WEBSOCKET=OFF \
-                -DBUILD_ESPEAK_NG_EXE=OFF \
-                -DSHERPA_ONNX_ENABLE_BINARY=OFF \
-                -DCMAKE_INSTALL_PREFIX=./install \
-                ..
-
-              make -j2
-              make install
-
-      - name: Copy libs
-        shell: bash
-        run: |
-          cp -v build/install/lib/lib* ./sherpa-onnx/flutter/linux/
-
-          echo "--------------------"
-
-          ls -lh ./sherpa-onnx/flutter/linux/
-
-      - name: Download model files
-        shell: bash
-        run: |
-          cd sherpa-onnx/flutter
-          cd example/assets
-
-          curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/silero_vad.onnx
-          curl -SL -O https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
-          tar xvf sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
-          rm sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
-          cd sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20
-          rm encoder-epoch-99-avg-1.onnx
-          rm decoder-epoch-99-avg-1.int8.onnx
-          rm joiner-epoch-99-avg-1.onnx
-          rm README.md
-          rm bpe.model
-          rm bpe.vocab
-          rm -rf test_wavs
-          ls -lh
           cd ..
           cd ..
 
 
       - name: Build flutter
       - name: Build flutter
         shell: bash
         shell: bash
         run: |
         run: |
+          cd scripts/flutter
 
 
-          d=$PWD
-
-          pushd sherpa-onnx/flutter
-          dart pub get
-
-          cd example
-          flutter build linux
-
-          ls -lh build/linux/x64/release/bundle/sherpa_onnx
-          file build/linux/x64/release/bundle/sherpa_onnx
-
-          tree build/linux/x64/release/bundle/
-          cd build/linux/x64/release/
+          total=${{ matrix.total }}
+          index=${{ matrix.index }}
 
 
-          dst=flutter_sherpa_onnx_linux_x64
-          mv bundle $dst
+          ./generate-tts.py --total $total --index $index
 
 
-          pushd $dst/lib
+          chmod +x *.sh
+          ./build-linux-tts.sh
+          cd ../../
+          ls -lh *.tar.bz2
 
 
-          ls -lh
-          mv -v libonnxruntime.so libonnxruntime.so.1.17.1
-          mv -v libpiper_phonemize.so libpiper_phonemize.so.1
-          popd
+      - name: Display generated files
+        shell: bash
+        run: |
+          ls -lh *.tar.bz2
 
 
-          tar cjfv $dst.tar.bz2 $dst
-          ls -lh
-          mv $dst.tar.bz2 $d
-          popd
+      - uses: actions/upload-artifact@v3
+        with:
+          name: ${{ matrix.os }}-${{ matrix.total }}-${{ matrix.index }}
+          path: ./*.tar.bz2
 
 
-          ls -lh $dst.tar.bz2
+  tts_upload:
+    needs: [tts]
+    name: tts upload ${{ matrix.index }}/${{ matrix.total }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        total: ["20"]
+        index: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"]
+        # total: ["1"]
+        # index: ["0"]
 
 
-      - uses: actions/upload-artifact@v2
+    steps:
+      - uses: actions/checkout@v4
         with:
         with:
-          name: flutter-sherpa-onnx-linux-x64
-          path: ./*.tar.bz2
+          fetch-depth: 0
 
 
-      # - name: Release android libs
-      #   if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && github.event_name == 'push' && contains(github.ref, 'refs/tags/')
-      #   uses: svenstaro/upload-release-action@v2
-      #   with:
-      #     file_glob: true
-      #     overwrite: true
-      #     file: flutter*.tar.bz2
+      - name: Retrieve artifact from ubuntu-latest
+        uses: actions/download-artifact@v3
+        with:
+          name: ${{ matrix.os }}-${{ matrix.total }}-${{ matrix.index }}
+          path: /tmp/files/
+
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+            dst=flutter/tts/linux/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+            cp -v /tmp/files/*.tar.bz2 $dst
+
+            git status
+            git lfs track "*.bz2"
+            git add .
+            git commit -m "add more files"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-flutter main

@@ -14,8 +14,8 @@ concurrency:
   cancel-in-progress: true
   cancel-in-progress: true
 
 
 jobs:
 jobs:
-  flutter_macos:
-    name: macos ${{ matrix.arch }} ${{ matrix.index }}
+  asr:
+    name: asr ${{ matrix.arch }}/${{ matrix.total }}
     runs-on: ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
     strategy:
       fail-fast: false
       fail-fast: false
@@ -78,13 +78,119 @@ jobs:
           cd ../../
           cd ../../
           ls -lh *.tar.bz2
           ls -lh *.tar.bz2
 
 
-      - uses: actions/upload-artifact@v4
+      - name: Display generated files
+        shell: bash
+        run: |
+          ls -lh *.tar.bz2
+
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
+        with:
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+
+            dst=flutter/asr/macos/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+
+            cp -v ../*.tar.bz2 $dst
+
+            git status
+            git lfs track "*.bz2"
+            git add .
+            git commit -m "add more files"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-flutter main
+
+  tts:
+    name: tts ${{ matrix.arch }} ${{ matrix.index }}/${{ matrix.total }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+        arch: [x86_64, arm64]
+        total: ["10"]
+        index: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+
+    steps:
+      - uses: actions/checkout@v4
         with:
         with:
-          name: sherpa-onnx-osx-${{ matrix.arch }}-${{ matrix.index }}
-          path: ./*.tar.bz2
+          fetch-depth: 0
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --break-system-packages --upgrade pip jinja2 iso639-lang
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - name: Display PWD
+        shell: bash
+        run: |
+          echo "pwd: $PWD"
+          ls -lh
+
+      - name: Display machine info
+        shell: bash
+        run: |
+          uname -a
+
+      - name: Display flutter info
+        shell: bash
+        run: |
+          which flutter
+          which dart
+
+          flutter --version
+          dart --version
+          flutter doctor
+
+      - name: Build flutter
+        shell: bash
+        run: |
+          export arch=${{ matrix.arch }}
+          cd scripts/flutter
+
+          total=${{ matrix.total }}
+          index=${{ matrix.index }}
+
+          ./generate-tts.py --total $total --index $index
+
+          chmod +x *.sh
+          ./build-macos-tts.sh
+          cd ../../
+          ls -lh *.tar.bz2
+
+      - name: Display generated files
+        shell: bash
+        run: |
+          ls -lh *.tar.bz2
 
 
       - name: Publish to huggingface
       - name: Publish to huggingface
-        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
         env:
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
         uses: nick-fields/retry@v3
         uses: nick-fields/retry@v3
@@ -100,13 +206,17 @@ jobs:
             export GIT_LFS_SKIP_SMUDGE=1
             export GIT_LFS_SKIP_SMUDGE=1
             export GIT_CLONE_PROTECTION_ACTIVE=false
             export GIT_CLONE_PROTECTION_ACTIVE=false
 
 
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
             git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
             git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
             cd huggingface
             cd huggingface
             git fetch
             git fetch
             git pull
             git pull
             git merge -m "merge remote" --ff origin main
             git merge -m "merge remote" --ff origin main
-            mkdir -p flutter/asr
-            cp -v ../*.tar.bz2 ./flutter/asr
+            dst=flutter/tts/macos/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+            cp -v ../*.tar.bz2 $dst
 
 
             git status
             git status
             git lfs track "*.bz2"
             git lfs track "*.bz2"

@@ -14,8 +14,8 @@ concurrency:
   cancel-in-progress: true
   cancel-in-progress: true
 
 
 jobs:
 jobs:
-  flutter_windows_x64:
-    name: windows x64 ${{ matrix.index }}
+  asr:
+    name: asr ${{ matrix.index }}/${{ matrix.total }}
     runs-on: ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
     strategy:
       fail-fast: false
       fail-fast: false
@@ -76,13 +76,106 @@ jobs:
           cd ../../
           cd ../../
           ls -lh *.tar.bz2
           ls -lh *.tar.bz2
 
 
-      - uses: actions/upload-artifact@v4
+      - name: Publish to huggingface
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
+        uses: nick-fields/retry@v3
         with:
         with:
-          name: sherpa-onnx-win-x64-${{ matrix.index }}
-          path: ./*.tar.bz2
+          max_attempts: 20
+          timeout_seconds: 200
+          shell: bash
+          command: |
+            git config --global user.email "csukuangfj@gmail.com"
+            git config --global user.name "Fangjun Kuang"
+
+            rm -rf huggingface
+            export GIT_LFS_SKIP_SMUDGE=1
+            export GIT_CLONE_PROTECTION_ACTIVE=false
+
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
+            git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
+            cd huggingface
+            git fetch
+            git pull
+            git merge -m "merge remote" --ff origin main
+
+            dst=flutter/asr/windows/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+            cp -v ../*.tar.bz2 $dst
+
+            git status
+            git lfs track "*.bz2"
+            git add .
+            git commit -m "add more files"
+            git push https://csukuangfj:$HF_TOKEN@huggingface.co/csukuangfj/sherpa-onnx-flutter main
+
+  tts:
+    name: tts ${{ matrix.index }}/${{ matrix.total }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest]
+        total: ["20"]
+        index: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "11", "12", "13", "14", "15", "16", "17", "18", "19"]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install Python dependencies
+        shell: bash
+        run: |
+          python3 -m pip install --upgrade pip jinja2 iso639-lang
+
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v3
+        with:
+          channel: stable
+          version: latest
+
+      - name: Display PWD
+        shell: bash
+        run: |
+          echo "pwd: $PWD"
+          ls -lh
+
+      - name: Display machine info
+        shell: bash
+        run: |
+          uname -a
+
+      - name: Display flutter info
+        shell: bash
+        run: |
+          which flutter
+          which dart
+
+          flutter --version
+          dart --version
+          flutter doctor
+
+      - name: Build flutter
+        shell: bash
+        run: |
+          cd scripts/flutter
+
+          total=${{ matrix.total }}
+          index=${{ matrix.index }}
+
+          ./generate-tts.py --total $total --index $index
+
+          chmod +x *.sh
+          ./build-windows-tts.sh
+          cd ../../
+          ls -lh *.tar.bz2
 
 
       - name: Publish to huggingface
       - name: Publish to huggingface
-        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
+        if: (github.repository_owner == 'csukuangfj' || github.repository_owner == 'k2-fsa' || github.repository_owner == 'csu-fangjun') && ((github.event_name == 'push' || github.event_name == 'workflow_dispatch') || contains(github.ref, 'refs/tags/'))
         env:
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
           HF_TOKEN: ${{ secrets.HF_TOKEN }}
         uses: nick-fields/retry@v3
         uses: nick-fields/retry@v3
@@ -98,13 +191,18 @@ jobs:
             export GIT_LFS_SKIP_SMUDGE=1
             export GIT_LFS_SKIP_SMUDGE=1
             export GIT_CLONE_PROTECTION_ACTIVE=false
             export GIT_CLONE_PROTECTION_ACTIVE=false
 
 
+            SHERPA_ONNX_VERSION=$(grep "SHERPA_ONNX_VERSION" ./CMakeLists.txt  | cut -d " " -f 2  | cut -d '"' -f 2)
+            echo "SHERPA_ONNX_VERSION $SHERPA_ONNX_VERSION"
+
             git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
             git clone https://huggingface.co/csukuangfj/sherpa-onnx-flutter huggingface
             cd huggingface
             cd huggingface
             git fetch
             git fetch
             git pull
             git pull
             git merge -m "merge remote" --ff origin main
             git merge -m "merge remote" --ff origin main
-            mkdir -p flutter/asr
-            cp -v ../*.tar.bz2 ./flutter/asr
+
+            dst=flutter/tts/windows/$SHERPA_ONNX_VERSION
+            mkdir -p $dst
+            cp -v ../*.tar.bz2 $dst
 
 
             git status
             git status
             git lfs track "*.bz2"
             git lfs track "*.bz2"

+# Note about android
+
+Useful commands
+
+```bash
+flutter build apk --split-per-abi --release
+```
+
+The above commands print the following:
+
+```
+✓ Built build/app/outputs/flutter-apk/app-armeabi-v7a-release.apk (94.8MB)
+✓ Built build/app/outputs/flutter-apk/app-arm64-v8a-release.apk (96.1MB)
+✓ Built build/app/outputs/flutter-apk/app-x86_64-release.apk (96.9MB)
+```
+
+Note that it does not generate APK for `x86`.
+
+```
+adb install build/app/outputs/flutter-apk/app-arm64-v8a-release.apk
+```

+# Introduction
+
+This document describes how the [tts](./tts) folder is created.
+
+
+```bash
+flutter create --platforms windows,macos,linux,android,ios tts
+```
+
+It prints the following:
+
+```
+Developer identity "Apple Development: xxx@zzz.com (xxxxxxx)" selected for iOS code signing
+Creating project tts...
+Resolving dependencies in `tts`... (1.3s)
+Downloading packages...
+Got dependencies in `tts`.
+Wrote 122 files.
+
+All done!
+You can find general documentation for Flutter at: https://docs.flutter.dev/
+Detailed API documentation is available at: https://api.flutter.dev/
+If you prefer video documentation, consider: https://www.youtube.com/c/flutterdev
+
+In order to run your application, type:
+
+  $ cd tts
+  $ flutter run
+
+Your application code is in tts/lib/main.dart.
+```
+
+```
+cd tts
+flutter pub get
+flutter build macos
+flutter run -d macos
+```

@@ -12,11 +12,14 @@ Future<String> copyAssetFile(String src, [String? dst]) async {
     dst = basename(src);
     dst = basename(src);
   }
   }
   final target = join(directory.path, dst);
   final target = join(directory.path, dst);
+  bool exists = await new File(target).exists();
 
 
-  final data = await rootBundle.load(src);
-  final List<int> bytes =
-      data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
-  await File(target).writeAsBytes(bytes);
+  if (!exists) {
+    final data = await rootBundle.load(src);
+    final List<int> bytes =
+        data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
+    await File(target).writeAsBytes(bytes);
+  }
 
 
   return target;
   return target;
 }
 }

+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "5dcb86f68f239346676ceb1ed1ea385bd215fba1"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+    - platform: android
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+    - platform: ios
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+    - platform: linux
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+    - platform: macos
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+    - platform: windows
+      create_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+      base_revision: 5dcb86f68f239346676ceb1ed1ea385bd215fba1
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

+# tts
+
+This example demonstrates how to use text to speech (TTS) in Flutter with sherpa-onnx.
+
+It works on the following platforms:
+
+  - Android
+  - iOS
+  - Linux
+  - macOS (both arm64 and x86_64 are supported)
+  - Windows
+
+## How to build
+
+Before you run `flutter build`, you have to select a TTS model and change
+the code to use your selected model.
+
+### 1. Select a TTS model
+
+We have a list of TTS models at
+
+<https://github.com/k2-fsa/sherpa-onnx/releases/tag/tts-models>
+
+You can select any of them. If you feel that there are so many that you don't know
+which one is the best, please visit <http://huggingface.co/spaces/k2-fsa/text-to-speech>
+and try each one by yourself and select the one you consider the best.
+
+Suppose you select
+
+  <https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-libritts_r-medium.tar.bz2>
+
+Then please do the following:
+
+  - 1. Download and unzip the model
+
+```bash
+cd flutter-examples/tts/assets
+wget https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-libritts_r-medium.tar.bz2
+tar xf vits-piper-en_US-libritts_r-medium.tar.bz2
+rm vits-piper-en_US-libritts_r-medium.tar.bz2
+cd ..
+
+./generate-asset-list.py
+```
+
+  Note that you have to run [./generate-asset-list.py](./generate-asset-list.py) so that Flutter knows where
+  to find the model.
+
+  - 2. Change the code to use the downloaded model.
+
+    We have given several examples for different models in [./lib/model.dart](./lib/model.dart).
+    For our selected model, we need to change [./lib/model.dart](./lib/model.dart) so that it looks like below:
+
+```
+// Example 6
+// https://github.com/k2-fsa/sherpa-onnx/releases/tag/tts-models
+// https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-libritts_r-medium.tar.bz2
+modelDir = 'vits-piper-en_US-libritts_r-medium';
+modelName = 'en_US-libritts_r-medium.onnx';
+dataDir = 'vits-piper-en_US-libritts_r-medium/espeak-ng-data';
+```
+
+  - 3. That's it.
+
+### Build the APP
+
+  - 1. For Linux
+
+```bash
+flutter build linux
+
+# See below if you get any errors
+```
+
+  - 2. For macOS
+
+To build a universal2 APP, use
+
+```bash
+flutter build macos
+```
+
+To build for `x86_64`, use
+
+```bash
+export FLUTTER_XCODE_ARCHS=x86_64
+flutter build macos
+```
+
+To build for `arm64`, use
+
+```bash
+export FLUTTER_XCODE_ARCHS=arm64
+flutter build macos
+```
+
+  - 3. For Windows
+
+```bash
+flutter build windows
+```
+
+  - 4. For Android
+
+```bash
+flutter build apk --split-per-abi
+```
+
+  - 5. For iOS
+
+```
+flutter build ios
+```
+
+## Fix for Linux
+
+If you get the following errors on Linux,
+
+```
+Building Linux application...
+CMake Error at /usr/local/share/cmake-3.29/Modules/FindPkgConfig.cmake:634 (message):
+  The following required packages were not found:
+
+   - gstreamer-1.0
+
+Call Stack (most recent call first):
+  /usr/local/share/cmake-3.29/Modules/FindPkgConfig.cmake:862 (_pkg_check_modules_internal)
+  flutter/ephemeral/.plugin_symlinks/audioplayers_linux/linux/CMakeLists.txt:24 (pkg_check_modules)
+```
+
+please run:
+
+```bash
+sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libunwind-dev
+```
+
+See also <https://github.com/bluefireteam/audioplayers/tree/main/packages/audioplayers_linux#setup-for-linux>
+for the above error.

+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks

+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file("local.properties")
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader("UTF-8") { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterVersionCode = localProperties.getProperty("flutter.versionCode")
+if (flutterVersionCode == null) {
+    flutterVersionCode = "1"
+}
+
+def flutterVersionName = localProperties.getProperty("flutter.versionName")
+if (flutterVersionName == null) {
+    flutterVersionName = "1.0"
+}
+
+android {
+    namespace = "com.k2fsa.sherpa.onnx.tts"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.k2fsa.sherpa.onnx.tts"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutterVersionCode.toInteger()
+        versionName = flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="tts"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

+package com.k2fsa.sherpa.onnx.tts
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity()

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = "../build"
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

+org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.3-all.zip

+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "7.3.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
+}
+
+include ":app"

+#!/usr/bin/env python3
+
+"""
+This file assumes that
+  assets:
+is the last line in ./pubspec.yaml
+
+It reads the file names of all files from the ./assets folder
+and turns them as assets and writes them into ./pubspec.yaml
+"""
+
+import os
+
+
+def main():
+    target = "./assets"
+    excluded_ext = [
+        ".gitkeep",
+        ".onnx.json",
+        ".py",
+        ".sh",
+        "*.md",
+        "MODEL_CARD",
+    ]
+    sep = "    "
+    ss = []
+    for root, d, files in os.walk(target):
+        for f in files:
+            skip = False
+            for p in excluded_ext:
+                if f.endswith(p):
+                    skip = True
+                    break
+
+            if skip:
+                continue
+
+            t = os.path.join(root, f).replace("\\", "/")
+            ss.append("{sep}- {t}".format(sep=sep, t=t))
+
+    # read pub.spec.yaml
+    with open("./pubspec.yaml", encoding="utf-8") as f:
+        lines = f.readlines()
+
+    found_assets = False
+    with open("./pubspec.yaml", "w", encoding="utf-8") as f:
+        for line in lines:
+            if line == "  assets:\n":
+                assert found_assets is False
+                found_assets = True
+                if len(ss) > 0:
+                    f.write(line)
+
+            if not found_assets:
+                f.write(line)
+                continue
+
+            for s in ss:
+                f.write("{s}\n".format(s=s))
+            break
+
+        if not found_assets and ss:
+            f.write("  assets:\n")
+            for s in ss:
+                f.write("{s}\n".format(s=s))
+
+
+if __name__ == "__main__":
+    main()

+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>12.0</string>
+</dict>
+</plist>

+#include "Generated.xcconfig"

+#include "Generated.xcconfig"

+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		331C808B294A63AB00263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C807B294A618700263BE5 /* RunnerTests.swift */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		74858FAF1ED2DC5600515810 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 74858FAE1ED2DC5600515810 /* AppDelegate.swift */; };
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+		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		331C8085294A63A400263BE5 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 97C146E61CF9000F007C117D /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 97C146ED1CF9000F007C117D;
+			remoteInfo = Runner;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		331C807B294A618700263BE5 /* RunnerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RunnerTests.swift; sourceTree = "<group>"; };
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+		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
+		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
+		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		331C8082294A63A400263BE5 /* RunnerTests */ = {
+			isa = PBXGroup;
+			children = (
+				331C807B294A618700263BE5 /* RunnerTests.swift */,
+			);
+			path = RunnerTests;
+			sourceTree = "<group>";
+		};
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+				331C8082294A63A400263BE5 /* RunnerTests */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				97C146EE1CF9000F007C117D /* Runner.app */,
+				331C8081294A63A400263BE5 /* RunnerTests.xctest */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		97C146F01CF9000F007C117D /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				97C146FA1CF9000F007C117D /* Main.storyboard */,
+				97C146FD1CF9000F007C117D /* Assets.xcassets */,
+				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
+				97C147021CF9000F007C117D /* Info.plist */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+				74858FAE1ED2DC5600515810 /* AppDelegate.swift */,
+				74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		331C8080294A63A400263BE5 /* RunnerTests */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 331C8087294A63A400263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */;
+			buildPhases = (
+				331C807D294A63A400263BE5 /* Sources */,
+				331C807F294A63A400263BE5 /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				331C8086294A63A400263BE5 /* PBXTargetDependency */,
+			);
+			name = RunnerTests;
+			productName = RunnerTests;
+			productReference = 331C8081294A63A400263BE5 /* RunnerTests.xctest */;
+			productType = "com.apple.product-type.bundle.unit-test";
+		};
+		97C146ED1CF9000F007C117D /* Runner */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
+				9740EEB61CF901F6004384FC /* Run Script */,
+				97C146EA1CF9000F007C117D /* Sources */,
+				97C146EB1CF9000F007C117D /* Frameworks */,
+				97C146EC1CF9000F007C117D /* Resources */,
+				9705A1C41CF9048500538489 /* Embed Frameworks */,
+				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Runner;
+			productName = Runner;
+			productReference = 97C146EE1CF9000F007C117D /* Runner.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		97C146E61CF9000F007C117D /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				BuildIndependentTargetsInParallel = YES;
+				LastUpgradeCheck = 1510;
+				ORGANIZATIONNAME = "";
+				TargetAttributes = {
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+					};
+				};
+			};
+			buildConfigurationList = 97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
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+				97C146ED1CF9000F007C117D /* Runner */,
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+				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
+				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
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+			alwaysOutOfDate = 1;
+			buildActionMask = 2147483647;
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+			);
+			inputPaths = (
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+			);
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+			outputPaths = (
+			);
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+			shellPath = /bin/sh;
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+			);
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+			children = (
+				97C147001CF9000F007C117D /* Base */,
+			);
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+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
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+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
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+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
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+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
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+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.k2fsa.sherpa.onnx.tts.RunnerTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
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+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
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+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
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+				DEVELOPMENT_TEAM = N5ZH3Z63A6;
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.k2fsa.sherpa.onnx.tts;
+				PRODUCT_NAME = "$(TARGET_NAME)";
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+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
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+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = N5ZH3Z63A6;
+				ENABLE_BITCODE = NO;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
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+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		331C8087294A63A400263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
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+				331C808A294A63A400263BE5 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1510"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

+import Flutter
+import UIKit
+
+@UIApplicationMain
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}

+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>Tts</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>tts</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
+</dict>
+</plist>

+#import "GeneratedPluginRegistrant.h"

+import Flutter
+import UIKit
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}

+// Copyright (c)  2024  Xiaomi Corporation
+import 'package:flutter/material.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class InfoScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    const double height = 20;
+    return Container(
+      child: Padding(
+        padding: const EdgeInsets.all(8.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: <Widget>[
+            Text('Everything is open-sourced.'),
+            SizedBox(height: height),
+            InkWell(
+              child: Text('Code: https://github.com/k2-fsa/sherpa-onnx'),
+              onTap: () => launch('https://k2-fsa.github.io/sherpa/onnx/'),
+            ),
+            SizedBox(height: height),
+            InkWell(
+              child: Text('Doc: https://k2-fsa.github.io/sherpa/onnx/'),
+              onTap: () => launch('https://k2-fsa.github.io/sherpa/onnx/'),
+            ),
+            SizedBox(height: height),
+            Text('QQ 群: 744602236'),
+            SizedBox(height: height),
+            InkWell(
+              child: Text(
+                  '微信群: https://k2-fsa.github.io/sherpa/social-groups.html'),
+              onTap: () =>
+                  launch('https://k2-fsa.github.io/sherpa/social-groups.html'),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

+// Copyright (c)  2024  Xiaomi Corporation
+import 'package:flutter/material.dart';
+
+import './tts.dart';
+import './info.dart';
+
+void main() {
+  runApp(const MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Next-gen Kaldi flutter demo',
+      theme: ThemeData(
+        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        useMaterial3: true,
+      ),
+      home: const MyHomePage(title: 'Next-gen Kaldi with Flutter'),
+    );
+  }
+}
+
+class MyHomePage extends StatefulWidget {
+  const MyHomePage({super.key, required this.title});
+
+  final String title;
+
+  @override
+  State<MyHomePage> createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  int _currentIndex = 0;
+  final List<Widget> _tabs = [
+    TtsScreen(),
+    InfoScreen(),
+  ];
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(widget.title),
+      ),
+      body: _tabs[_currentIndex],
+      bottomNavigationBar: BottomNavigationBar(
+        currentIndex: _currentIndex,
+        onTap: (int index) {
+          setState(() {
+            _currentIndex = index;
+          });
+        },
+        items: [
+          BottomNavigationBarItem(
+            icon: Icon(Icons.home),
+            label: 'Home',
+          ),
+          BottomNavigationBarItem(
+            icon: Icon(Icons.info),
+            label: 'Info',
+          ),
+        ],
+      ),
+    );
+  }
+}

+// Copyright (c)  2024  Xiaomi Corporation
+
+import "dart:io";
+
+import 'package:flutter/services.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:path/path.dart' as p;
+import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
+
+import './utils.dart';
+
+Future<sherpa_onnx.OfflineTts> createOfflineTts() async {
+  // sherpa_onnx requires that model files are in the local disk, so we
+  // need to copy all asset files to disk.
+  await copyAllAssetFiles();
+
+  sherpa_onnx.initBindings();
+
+  // Such a design is to make it easier to build flutter APPs with
+  // github actions for a variety of tts models
+  //
+  // See https://github.com/k2-fsa/sherpa-onnx/blob/master/scripts/flutter/generate-tts.py
+  // for details
+
+  String modelDir = '';
+  String modelName = '';
+  String ruleFsts = '';
+  String ruleFars = '';
+  String lexicon = '';
+  String dataDir = '';
+  String dictDir = '';
+
+  // You can select an example below and change it according to match your
+  // selected tts model
+
+  // ============================================================
+  // Your change starts here
+  // ============================================================
+
+  // Example 1:
+  // modelDir = 'vits-vctk';
+  // modelName = 'vits-vctk.onnx';
+  // lexicon = 'lexicon.txt';
+
+  // Example 2:
+  // https://github.com/k2-fsa/sherpa-onnx/releases/tag/tts-models
+  // https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-amy-low.tar.bz2
+  // modelDir = 'vits-piper-en_US-amy-low';
+  // modelName = 'en_US-amy-low.onnx';
+  // dataDir = 'vits-piper-en_US-amy-low/espeak-ng-data';
+
+  // Example 3:
+  // https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-icefall-zh-aishell3.tar.bz2
+  // modelDir = 'vits-icefall-zh-aishell3';
+  // modelName = 'model.onnx';
+  // ruleFsts = 'vits-icefall-zh-aishell3/phone.fst,vits-icefall-zh-aishell3/date.fst,vits-icefall-zh-aishell3/number.fst,vits-icefall-zh-aishell3/new_heteronym.fst';
+  // ruleFars = 'vits-icefall-zh-aishell3/rule.far';
+  // lexicon = 'lexicon.txt';
+
+  // Example 4:
+  // https://k2-fsa.github.io/sherpa/onnx/tts/pretrained_models/vits.html#csukuangfj-vits-zh-hf-fanchen-c-chinese-187-speakers
+  // modelDir = 'vits-zh-hf-fanchen-C';
+  // modelName = 'vits-zh-hf-fanchen-C.onnx';
+  // lexicon = 'lexicon.txt';
+  // dictDir = 'vits-zh-hf-fanchen-C/dict';
+
+  // Example 5:
+  // https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-coqui-de-css10.tar.bz2
+  // modelDir = 'vits-coqui-de-css10';
+  // modelName = 'model.onnx';
+
+  // Example 6
+  // https://github.com/k2-fsa/sherpa-onnx/releases/tag/tts-models
+  // https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-libritts_r-medium.tar.bz2
+  // modelDir = 'vits-piper-en_US-libritts_r-medium';
+  // modelName = 'en_US-libritts_r-medium.onnx';
+  // dataDir = 'vits-piper-en_US-libritts_r-medium/espeak-ng-data';
+
+  // ============================================================
+  // Please don't change the remaining part of this function
+  // ============================================================
+  if (modelName == '') {
+    throw Exception(
+        'You are supposed to select a model by changing the code before you run the app');
+  }
+
+  final Directory directory = await getApplicationDocumentsDirectory();
+  modelName = p.join(directory.path, modelDir, modelName);
+
+  if (ruleFsts != '') {
+    final all = ruleFsts.split(',');
+    var tmp = <String>[];
+    for (final f in all) {
+      tmp.add(p.join(directory.path, modelDir, f));
+    }
+    ruleFsts = tmp.join(',');
+  }
+
+  if (ruleFars != '') {
+    final all = ruleFars.split(',');
+    var tmp = <String>[];
+    for (final f in all) {
+      tmp.add(p.join(directory.path, f));
+    }
+    ruleFars = tmp.join(',');
+  }
+
+  if (lexicon != '') {
+    lexicon = p.join(directory.path, lexicon);
+  }
+
+  if (dataDir != '') {
+    dataDir = p.join(directory.path, dataDir);
+  }
+
+  if (dictDir != '') {
+    dictDir = p.join(directory.path, dictDir);
+  }
+
+  final tokens = p.join(directory.path, modelDir, 'tokens.txt');
+
+  final vits = sherpa_onnx.OfflineTtsVitsModelConfig(
+    model: modelName,
+    lexicon: lexicon,
+    tokens: tokens,
+    dataDir: dataDir,
+    dictDir: dictDir,
+  );
+
+  final modelConfig = sherpa_onnx.OfflineTtsModelConfig(
+    vits: vits,
+    numThreads: 2,
+    debug: true,
+    provider: 'cpu',
+  );
+
+  final config = sherpa_onnx.OfflineTtsConfig(
+    model: modelConfig,
+    ruleFsts: ruleFsts,
+    ruleFars: ruleFars,
+    maxNumSenetences: 1,
+  );
+  // print(config);
+
+  final tts = sherpa_onnx.OfflineTts(config);
+  print('tts created successfully');
+
+  return tts;
+}

+// Copyright (c)  2024  Xiaomi Corporation
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+import 'package:flutter/material.dart';
+
+import 'package:audioplayers/audioplayers.dart';
+import 'package:sherpa_onnx/sherpa_onnx.dart' as sherpa_onnx;
+
+import './model.dart';
+import './utils.dart';
+
+class TtsScreen extends StatefulWidget {
+  const TtsScreen({super.key});
+
+  @override
+  State<TtsScreen> createState() => _TtsScreenState();
+}
+
+class _TtsScreenState extends State<TtsScreen> {
+  late final TextEditingController _controller_text_input;
+  late final TextEditingController _controller_sid;
+  late final TextEditingController _controller_hint;
+  late final AudioPlayer _player;
+  String _title = 'Text to speech';
+  String _lastFilename = '';
+  bool _isInitialized = false;
+  int _maxSpeakerID = 0;
+  double _speed = 1.0;
+
+  sherpa_onnx.OfflineTts? _tts;
+
+  @override
+  void initState() {
+    _controller_text_input = TextEditingController();
+    _controller_hint = TextEditingController();
+    _controller_sid = TextEditingController(text: '0');
+    super.initState();
+  }
+
+  Future<void> _init() async {
+    if (!_isInitialized) {
+      sherpa_onnx.initBindings();
+
+      _tts?.free();
+      _tts = await createOfflineTts();
+
+      _player = AudioPlayer();
+
+      _isInitialized = true;
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: Text(_title),
+        ),
+        body: Padding(
+          padding: EdgeInsets.all(10),
+          child: Column(
+            // mainAxisAlignment: MainAxisAlignment.center,
+            children: <Widget>[
+              TextField(
+                  decoration: InputDecoration(
+                    labelText: "Speaker ID (0-$_maxSpeakerID)",
+                    hintText: 'Please input your speaker ID',
+                  ),
+                  keyboardType: TextInputType.number,
+                  maxLines: 1,
+                  controller: _controller_sid,
+                  inputFormatters: <TextInputFormatter>[
+                    FilteringTextInputFormatter.digitsOnly
+                  ]),
+              Slider(
+                // decoration: InputDecoration(
+                //   labelText: "speech speed",
+                // ),
+                label: "Speech speed ${_speed.toStringAsPrecision(2)}",
+                min: 0.5,
+                max: 3.0,
+                divisions: 25,
+                value: _speed,
+                onChanged: (value) {
+                  setState(() {
+                    _speed = value;
+                  });
+                },
+              ),
+              const SizedBox(height: 5),
+              TextField(
+                decoration: InputDecoration(
+                  border: OutlineInputBorder(),
+                  hintText: 'Please enter your text here',
+                ),
+                maxLines: 5,
+                controller: _controller_text_input,
+              ),
+              const SizedBox(height: 5),
+              Row(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  children: <Widget>[
+                    OutlinedButton(
+                      child: Text("Generate"),
+                      onPressed: () async {
+                        await _init();
+                        await _player?.stop();
+
+                        setState(() {
+                          _maxSpeakerID = _tts?.numSpeakers ?? 0;
+                          if (_maxSpeakerID > 0) {
+                            _maxSpeakerID -= 1;
+                          }
+                        });
+
+                        if (_tts == null) {
+                          _controller_hint.value = TextEditingValue(
+                            text: 'Failed to initialize tts',
+                          );
+                          return;
+                        }
+
+                        _controller_hint.value = TextEditingValue(
+                          text: '',
+                        );
+
+                        final text = _controller_text_input.text.trim();
+                        if (text == '') {
+                          _controller_hint.value = TextEditingValue(
+                            text: 'Please first input your text to generate',
+                          );
+                          return;
+                        }
+
+                        final sid =
+                            int.tryParse(_controller_sid.text.trim()) ?? 0;
+
+                        final stopwatch = Stopwatch();
+                        stopwatch.start();
+                        final audio =
+                            _tts!.generate(text: text, sid: sid, speed: _speed);
+                        final suffix =
+                            '-sid-$sid-speed-${_speed.toStringAsPrecision(2)}';
+                        final filename = await generateWaveFilename(suffix);
+
+                        final ok = sherpa_onnx.writeWave(
+                          filename: filename,
+                          samples: audio.samples,
+                          sampleRate: audio.sampleRate,
+                        );
+
+                        if (ok) {
+                          stopwatch.stop();
+                          double elapsed =
+                              stopwatch.elapsed.inMilliseconds.toDouble();
+
+                          double waveDuration =
+                              audio.samples.length.toDouble() /
+                                  audio.sampleRate.toDouble();
+
+                          _controller_hint.value = TextEditingValue(
+                            text: 'Saved to\n$filename\n'
+                                'Elapsed: ${(elapsed / 1000).toStringAsPrecision(4)} s\n'
+                                'Wave duration: ${waveDuration.toStringAsPrecision(4)} s\n'
+                                'RTF: ${(elapsed / 1000).toStringAsPrecision(4)}/${waveDuration.toStringAsPrecision(4)} '
+                                '= ${(elapsed / 1000 / waveDuration).toStringAsPrecision(3)} ',
+                          );
+                          _lastFilename = filename;
+
+                          await _player?.play(DeviceFileSource(_lastFilename));
+                        } else {
+                          _controller_hint.value = TextEditingValue(
+                            text: 'Failed to save generated audio',
+                          );
+                        }
+                      },
+                    ),
+                    const SizedBox(width: 5),
+                    OutlinedButton(
+                      child: Text("Clear"),
+                      onPressed: () {
+                        _controller_text_input.value = TextEditingValue(
+                          text: '',
+                        );
+
+                        _controller_hint.value = TextEditingValue(
+                          text: '',
+                        );
+                      },
+                    ),
+                    const SizedBox(width: 5),
+                    OutlinedButton(
+                      child: Text("Play"),
+                      onPressed: () async {
+                        if (_lastFilename == '') {
+                          _controller_hint.value = TextEditingValue(
+                            text: 'No generated wave file found',
+                          );
+                          return;
+                        }
+                        await _player?.stop();
+                        await _player?.play(DeviceFileSource(_lastFilename));
+                        _controller_hint.value = TextEditingValue(
+                          text: 'Playing\n$_lastFilename',
+                        );
+                      },
+                    ),
+                    const SizedBox(width: 5),
+                    OutlinedButton(
+                      child: Text("Stop"),
+                      onPressed: () async {
+                        await _player?.stop();
+                        _controller_hint.value = TextEditingValue(
+                          text: '',
+                        );
+                      },
+                    ),
+                  ]),
+              const SizedBox(height: 5),
+              TextField(
+                decoration: InputDecoration(
+                  border: OutlineInputBorder(),
+                  hintText: 'Logs will be shown here.\n'
+                      'The first run is slower due to model initialization.',
+                ),
+                maxLines: 6,
+                controller: _controller_hint,
+                readOnly: true,
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _tts?.free();
+    super.dispose();
+  }
+}

+// Copyright (c)  2024  Xiaomi Corporation
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:flutter/services.dart';
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+
+Future<String> generateWaveFilename([String suffix = '']) async {
+  final Directory directory = await getApplicationDocumentsDirectory();
+  DateTime now = DateTime.now();
+  final filename =
+      '${now.year.toString()}-${now.month.toString().padLeft(2, '0')}-${now.day.toString().padLeft(2, '0')}-${now.hour.toString().padLeft(2, '0')}-${now.minute.toString().padLeft(2, '0')}-${now.second.toString().padLeft(2, '0')}$suffix.wav';
+
+  return p.join(directory.path, filename);
+}
+
+// https://stackoverflow.com/questions/68862225/flutter-how-to-get-all-files-from-assets-folder-in-one-list
+Future<List<String>> getAllAssetFiles() async {
+  final AssetManifest assetManifest =
+      await AssetManifest.loadFromAssetBundle(rootBundle);
+  final List<String> assets = assetManifest.listAssets();
+  return assets;
+}
+
+String stripLeadingDirectory(String src, {int n = 1}) {
+  return p.joinAll(p.split(src).sublist(n));
+}
+
+Future<void> copyAllAssetFiles() async {
+  final allFiles = await getAllAssetFiles();
+  for (final src in allFiles) {
+    final dst = stripLeadingDirectory(src);
+    await copyAssetFile(src, dst);
+  }
+}
+
+// Copy the asset file from src to dst.
+// If dst already exists, then just skip the copy
+Future<String> copyAssetFile(String src, [String? dst]) async {
+  final Directory directory = await getApplicationDocumentsDirectory();
+  if (dst == null) {
+    dst = p.basename(src);
+  }
+  final target = p.join(directory.path, dst);
+  bool exists = await new File(target).exists();
+
+  if (!exists) {
+    final data = await rootBundle.load(src);
+    final List<int> bytes =
+        data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
+    await (await File(target).create(recursive: true)).writeAsBytes(bytes);
+  }
+
+  return target;
+}

+flutter/ephemeral

+# Project-level configuration.
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "tts")
+# The unique GTK application identifier for this application. See:
+# https://wiki.gnome.org/HowDoI/ChooseApplicationID
+set(APPLICATION_ID "com.k2fsa.sherpa.onnx.tts")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(SET CMP0063 NEW)
+
+# Load bundled libraries from the lib/ directory relative to the binary.
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Define build configuration options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Define the application target. To change its name, change BINARY_NAME above,
+# not the value here, or `flutter run` will no longer work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add dependency libraries. Add any application-specific dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)
+
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
+  install(FILES "${bundled_library}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endforeach(bundled_library)
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()

+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)

+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}

+#include "my_application.h"
+
+#include <flutter_linux/flutter_linux.h>
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#endif
+
+#include "flutter/generated_plugin_registrant.h"
+
+struct _MyApplication {
+  GtkApplication parent_instance;
+  char** dart_entrypoint_arguments;
+};
+
+G_DEFINE_TYPE(MyApplication, my_application, GTK_TYPE_APPLICATION)
+
+// Implements GApplication::activate.
+static void my_application_activate(GApplication* application) {
+  MyApplication* self = MY_APPLICATION(application);
+  GtkWindow* window =
+      GTK_WINDOW(gtk_application_window_new(GTK_APPLICATION(application)));
+
+  // Use a header bar when running in GNOME as this is the common style used
+  // by applications and is the setup most users will be using (e.g. Ubuntu
+  // desktop).
+  // If running on X and not using GNOME then just use a traditional title bar
+  // in case the window manager does more exotic layout, e.g. tiling.
+  // If running on Wayland assume the header bar will work (may need changing
+  // if future cases occur).
+  gboolean use_header_bar = TRUE;
+#ifdef GDK_WINDOWING_X11
+  GdkScreen* screen = gtk_window_get_screen(window);
+  if (GDK_IS_X11_SCREEN(screen)) {
+    const gchar* wm_name = gdk_x11_screen_get_window_manager_name(screen);
+    if (g_strcmp0(wm_name, "GNOME Shell") != 0) {
+      use_header_bar = FALSE;
+    }
+  }
+#endif
+  if (use_header_bar) {
+    GtkHeaderBar* header_bar = GTK_HEADER_BAR(gtk_header_bar_new());
+    gtk_widget_show(GTK_WIDGET(header_bar));
+    gtk_header_bar_set_title(header_bar, "tts");
+    gtk_header_bar_set_show_close_button(header_bar, TRUE);
+    gtk_window_set_titlebar(window, GTK_WIDGET(header_bar));
+  } else {
+    gtk_window_set_title(window, "tts");
+  }
+
+  gtk_window_set_default_size(window, 1280, 720);
+  gtk_widget_show(GTK_WIDGET(window));
+
+  g_autoptr(FlDartProject) project = fl_dart_project_new();
+  fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+
+  FlView* view = fl_view_new(project);
+  gtk_widget_show(GTK_WIDGET(view));
+  gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));
+
+  fl_register_plugins(FL_PLUGIN_REGISTRY(view));
+
+  gtk_widget_grab_focus(GTK_WIDGET(view));
+}
+
+// Implements GApplication::local_command_line.
+static gboolean my_application_local_command_line(GApplication* application, gchar*** arguments, int* exit_status) {
+  MyApplication* self = MY_APPLICATION(application);
+  // Strip out the first argument as it is the binary name.
+  self->dart_entrypoint_arguments = g_strdupv(*arguments + 1);
+
+  g_autoptr(GError) error = nullptr;
+  if (!g_application_register(application, nullptr, &error)) {
+     g_warning("Failed to register: %s", error->message);
+     *exit_status = 1;
+     return TRUE;
+  }
+
+  g_application_activate(application);
+  *exit_status = 0;
+
+  return TRUE;
+}
+
+// Implements GApplication::startup.
+static void my_application_startup(GApplication* application) {
+  //MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application startup.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->startup(application);
+}
+
+// Implements GApplication::shutdown.
+static void my_application_shutdown(GApplication* application) {
+  //MyApplication* self = MY_APPLICATION(object);
+
+  // Perform any actions required at application shutdown.
+
+  G_APPLICATION_CLASS(my_application_parent_class)->shutdown(application);
+}
+
+// Implements GObject::dispose.
+static void my_application_dispose(GObject* object) {
+  MyApplication* self = MY_APPLICATION(object);
+  g_clear_pointer(&self->dart_entrypoint_arguments, g_strfreev);
+  G_OBJECT_CLASS(my_application_parent_class)->dispose(object);
+}
+
+static void my_application_class_init(MyApplicationClass* klass) {
+  G_APPLICATION_CLASS(klass)->activate = my_application_activate;
+  G_APPLICATION_CLASS(klass)->local_command_line = my_application_local_command_line;
+  G_APPLICATION_CLASS(klass)->startup = my_application_startup;
+  G_APPLICATION_CLASS(klass)->shutdown = my_application_shutdown;
+  G_OBJECT_CLASS(klass)->dispose = my_application_dispose;
+}
+
+static void my_application_init(MyApplication* self) {}
+
+MyApplication* my_application_new() {
+  return MY_APPLICATION(g_object_new(my_application_get_type(),
+                                     "application-id", APPLICATION_ID,
+                                     "flags", G_APPLICATION_NON_UNIQUE,
+                                     nullptr));
+}

+#ifndef FLUTTER_MY_APPLICATION_H_
+#define FLUTTER_MY_APPLICATION_H_
+
+#include <gtk/gtk.h>
+
+G_DECLARE_FINAL_TYPE(MyApplication, my_application, MY, APPLICATION,
+                     GtkApplication)
+
+/**
+ * my_application_new:
+ *
+ * Creates a new Flutter-based application.
+ *
+ * Returns: a new #MyApplication.
+ */
+MyApplication* my_application_new();
+
+#endif  // FLUTTER_MY_APPLICATION_H_

+# Flutter-related
+**/Flutter/ephemeral/
+**/Pods/
+
+# Xcode-related
+**/dgph
+**/xcuserdata/

+#include "ephemeral/Flutter-Generated.xcconfig"

+#include "ephemeral/Flutter-Generated.xcconfig"

+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		33CC111A2044C6BA0003C045 /* Flutter Assemble */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = 33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */;
+			buildPhases = (
+				33CC111E2044C6BF0003C045 /* ShellScript */,
+			);
+			dependencies = (
+			);
+			name = "Flutter Assemble";
+			productName = FLX;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		331C80D8294CF71000263BE5 /* RunnerTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 331C80D7294CF71000263BE5 /* RunnerTests.swift */; };
+		335BBD1B22A9A15E00E9071D /* GeneratedPluginRegistrant.swift in Sources */ = {isa = PBXBuildFile; fileRef = 335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */; };
+		33CC10F12044A3C60003C045 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC10F02044A3C60003C045 /* AppDelegate.swift */; };
+		33CC10F32044A3C60003C045 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F22044A3C60003C045 /* Assets.xcassets */; };
+		33CC10F62044A3C60003C045 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = 33CC10F42044A3C60003C045 /* MainMenu.xib */; };
+		33CC11132044BFA00003C045 /* MainFlutterWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 33CC11122044BFA00003C045 /* MainFlutterWindow.swift */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		331C80D9294CF71000263BE5 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC10EC2044A3C60003C045;
+			remoteInfo = Runner;
+		};
+		33CC111F2044C79F0003C045 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 33CC10E52044A3C60003C045 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 33CC111A2044C6BA0003C045;
+			remoteInfo = FLX;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		33CC110E2044A8840003C045 /* Bundle Framework */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Bundle Framework";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		331C80D5294CF71000263BE5 /* RunnerTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = RunnerTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		331C80D7294CF71000263BE5 /* RunnerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RunnerTests.swift; sourceTree = "<group>"; };
+		333000ED22D3DE5D00554162 /* Warnings.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Warnings.xcconfig; sourceTree = "<group>"; };
+		335BBD1A22A9A15E00E9071D /* GeneratedPluginRegistrant.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GeneratedPluginRegistrant.swift; sourceTree = "<group>"; };
+		33CC10ED2044A3C60003C045 /* tts.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "tts.app"; sourceTree = BUILT_PRODUCTS_DIR; };
+		33CC10F02044A3C60003C045 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		33CC10F22044A3C60003C045 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; name = Assets.xcassets; path = Runner/Assets.xcassets; sourceTree = "<group>"; };
+		33CC10F52044A3C60003C045 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		33CC10F72044A3C60003C045 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = Runner/Info.plist; sourceTree = "<group>"; };
+		33CC11122044BFA00003C045 /* MainFlutterWindow.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MainFlutterWindow.swift; sourceTree = "<group>"; };
+		33CEB47222A05771004F2AC0 /* Flutter-Debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = "Flutter-Debug.xcconfig"; sourceTree = "<group>"; };
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+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = NO;
+				DEAD_CODE_STRIPPING = YES;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = NO;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.14;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+			};
+			name = Release;
+		};
+		33CC10FC2044A3C60003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/DebugProfile.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Debug;
+		};
+		33CC10FD2044A3C60003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 33E5194F232828860026EE4D /* AppInfo.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_ENTITLEMENTS = Runner/Release.entitlements;
+				CODE_SIGN_STYLE = Automatic;
+				COMBINE_HIDPI_IMAGES = YES;
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/../Frameworks",
+				);
+				PROVISIONING_PROFILE_SPECIFIER = "";
+				SWIFT_VERSION = 5.0;
+			};
+			name = Release;
+		};
+		33CC111C2044C6BA0003C045 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Manual;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Debug;
+		};
+		33CC111D2044C6BA0003C045 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		331C80DE294CF71000263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				331C80DB294CF71000263BE5 /* Debug */,
+				331C80DC294CF71000263BE5 /* Release */,
+				331C80DD294CF71000263BE5 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10E82044A3C60003C045 /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10F92044A3C60003C045 /* Debug */,
+				33CC10FA2044A3C60003C045 /* Release */,
+				338D0CE9231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC10FB2044A3C60003C045 /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC10FC2044A3C60003C045 /* Debug */,
+				33CC10FD2044A3C60003C045 /* Release */,
+				338D0CEA231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		33CC111B2044C6BA0003C045 /* Build configuration list for PBXAggregateTarget "Flutter Assemble" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				33CC111C2044C6BA0003C045 /* Debug */,
+				33CC111D2044C6BA0003C045 /* Release */,
+				338D0CEB231458BD00FA5F75 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 33CC10E52044A3C60003C045 /* Project object */;
+}

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1510"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+               BuildableName = "tts.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "tts.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C80D4294CF70F00263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "tts.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "33CC10EC2044A3C60003C045"
+            BuildableName = "tts.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

+import Cocoa
+import FlutterMacOS
+
+@NSApplicationMain
+class AppDelegate: FlutterAppDelegate {
+  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+    return true
+  }
+}

+{
+  "images" : [
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_16.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "16x16",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_32.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "32x32",
+      "idiom" : "mac",
+      "filename" : "app_icon_64.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_128.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "128x128",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_256.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "256x256",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_512.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "512x512",
+      "idiom" : "mac",
+      "filename" : "app_icon_1024.png",
+      "scale" : "2x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}