diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f2487c0..3e72c899 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,116 +9,123 @@ on:
   pull_request:
 
 jobs:
-  Build-Windows:
-    # The type of runner that the job will run on
-    name: ${{ matrix.config.name }} (${{ matrix.build_type }}, ${{ matrix.config.cxx }}, C++${{ matrix.cppstd }})
-    runs-on: ${{ matrix.config.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        config:
-          - name: "Windows Latest MSVC"
-            # https://github.com/actions/runner-images/blob/main/images/win/Windows2022-Readme.md
-            os: windows-latest
-            cc: "cl"
-            cxx: "cl"
-            generator: "Visual Studio 17 2022"
-        build_type:
-          - Release
-          - Debug
-        cppstd:
-          - 17
-          - 20
-    env:
-      CXX: ${{ matrix.config.cxx }}
-      RESTINIO_BUILD_DIR: _build_${{ matrix.config.cxx }}_cppstd${{ matrix.cppstd }}_${{ matrix.build_type }}
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Print env
-        run: |
-          echo github.event.action: ${{ github.event.action }}
-          echo github.event_name: ${{ github.event_name }}
-
-      - name: Install dependencies
-        run: |
-          gem install Mxx_ru
-
-      - name: Configure
-        shell: bash
-        run: |
-          mxxruexternals
-          cd dev
-          cmake \
-            -B $RESTINIO_BUILD_DIR  \
-            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
-            -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.cppstd }} \
-            -DRESTINIO_TEST_SUFFIX=" [cpp${{ matrix.cppstd }}_${{ matrix.build_type }}]" \
-            -G "${{ matrix.config.generator }}"
-      - name: Build
-        working-directory: ./dev
-        shell: bash
-        run: |
-          cmake \
-            --build $RESTINIO_BUILD_DIR \
-            --config ${{ matrix.build_type }} \
-            --verbose
-      - name: Test
-        shell: bash
-        working-directory: ./dev
-        run: |
-          ctest \
-            -T test \
-            -C ${{ matrix.build_type }} \
-            --test-dir $RESTINIO_BUILD_DIR \
-            --output-on-failure \
-            --no-compress-output
+  # Build-Windows:
+  #   # The type of runner that the job will run on
+  #   name: ${{ matrix.config.name }} (${{ matrix.build_type }}, ${{ matrix.config.cxx }}, C++${{ matrix.cppstd }})
+  #   runs-on: ${{ matrix.config.os }}
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       config:
+  #         - name: "Windows Latest MSVC"
+  #           # https://github.com/actions/runner-images/blob/main/images/win/Windows2022-Readme.md
+  #           os: windows-latest
+  #           cc: "cl"
+  #           cxx: "cl"
+  #           generator: "Visual Studio 17 2022"
+  #       build_type:
+  #         - Release
+  #         - Debug
+  #       cppstd:
+  #         - 17
+  #         - 20
+  #   env:
+  #     CXX: ${{ matrix.config.cxx }}
+  #     RESTINIO_BUILD_DIR: _build_${{ matrix.config.cxx }}_cppstd${{ matrix.cppstd }}_${{ matrix.build_type }}
+
+  #   steps:
+  #     - uses: actions/checkout@v3
+
+  #     - name: Print env
+  #       run: |
+  #         echo github.event.action: ${{ github.event.action }}
+  #         echo github.event_name: ${{ github.event_name }}
+
+  #     - name: Install dependencies
+  #       run: |
+  #         gem install Mxx_ru
+
+  #     - name: Configure
+  #       shell: bash
+  #       run: |
+  #         mxxruexternals
+  #         cd dev
+  #         cmake \
+  #           -B $RESTINIO_BUILD_DIR  \
+  #           -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
+  #           -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.cppstd }} \
+  #           -DRESTINIO_TEST_SUFFIX=" [cpp${{ matrix.cppstd }}_${{ matrix.build_type }}]" \
+  #           -G "${{ matrix.config.generator }}"
+  #     - name: Build
+  #       working-directory: ./dev
+  #       shell: bash
+  #       run: |
+  #         cmake \
+  #           --build $RESTINIO_BUILD_DIR \
+  #           --config ${{ matrix.build_type }} \
+  #           --verbose
+  #     - name: Test
+  #       shell: bash
+  #       working-directory: ./dev
+  #       run: |
+  #         ctest \
+  #           -T test \
+  #           -C ${{ matrix.build_type }} \
+  #           --test-dir $RESTINIO_BUILD_DIR \
+  #           --output-on-failure \
+  #           --no-compress-output
 
   Build-Linux:
     # The type of runner that the job will run on
-    name: Ubuntu-22.04 (${{ matrix.compiler.cname }}, ${{ matrix.build_type }}, C++${{ matrix.compiler.cppstd }})
+    name: Ubuntu-22.04 (${{ matrix.build_settings.cname }}, ${{ matrix.build_type }}, C++${{ matrix.build_settings.cppstd }}, {{matrix.build_settings.asio_source}} asio)
     runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
-        compiler:
+        build_settings:
           - cname: gcc-9
             cxxname: g++-9
             ar: gcc-ar-9
             cppstd: 17
+            asio_source: standalone
 
-          - cname: gcc-12
-            cxxname: g++-12
-            ar: gcc-ar-12
-            cppstd: 17
-          - cname: gcc-12
-            cxxname: g++-12
-            ar: gcc-ar-12
-            cppstd: 20
-
-          - cname: clang-13
-            cxxname: clang++-13
-            ar: llvm-ar-13
-            cppstd: 17
-
-          - cname: clang-15
-            cxxname: clang++-15
-            ar: llvm-ar-15
+          - cname: gcc-9
+            cxxname: g++-9
+            ar: gcc-ar-9
             cppstd: 17
-          - cname: clang-15
-            cxxname: clang++-15
-            ar: llvm-ar-15
-            cppstd: 20
+            asio_source: boost
+
+          # - cname: gcc-12
+          #   cxxname: g++-12
+          #   ar: gcc-ar-12
+          #   cppstd: 17
+          # - cname: gcc-12
+          #   cxxname: g++-12
+          #   ar: gcc-ar-12
+          #   cppstd: 20
+
+          # - cname: clang-13
+          #   cxxname: clang++-13
+          #   ar: llvm-ar-13
+          #   cppstd: 17
+
+          # - cname: clang-15
+          #   cxxname: clang++-15
+          #   ar: llvm-ar-15
+          #   cppstd: 17
+          # - cname: clang-15
+          #   cxxname: clang++-15
+          #   ar: llvm-ar-15
+          #   cppstd: 20
 
         build_type:
           - Release
-          - Debug
+          # - Debug
     env:
-      CC: ${{ matrix.compiler.cname }}
-      CXX: ${{ matrix.compiler.cxxname }}
-      AR: ${{ matrix.compiler.ar }}
-      RESTINIO_BUILD_DIR: _build_${{ matrix.compiler.cname }}_cpp${{ matrix.compiler.cppstd }}_${{ matrix.build_type }}
+      CC: ${{ matrix.build_settings.cname }}
+      CXX: ${{ matrix.build_settings.cxxname }}
+      AR: ${{ matrix.build_settings.ar }}
+      RESTINIO_BUILD_DIR: _build_${{ matrix.build_settings.cname }}_cpp${{ matrix.build_settings.cppstd }}_${{ matrix.build_type }}_{{matrix.build_settings.asio_source}}_asio
     steps:
       - uses: actions/checkout@v3
 
@@ -131,60 +138,10 @@ jobs:
         run: |
           sudo gem install Mxx_ru
 
-      - name: Configure
-        shell: bash
-        run: |
-          mxxruexternals
-          cd dev
-          cmake \
-            -B ${RESTINIO_BUILD_DIR} \
-            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
-            -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.compiler.cppstd }} \
-            -DRESTINIO_TEST_SUFFIX=" [${{ matrix.compiler.cname }}_cpp${{ matrix.compiler.cppstd }}_${{ matrix.build_type }}]"
-      - name: Build
-        working-directory: ./dev
-        shell: bash
-        run: |
-          cmake \
-            --build $RESTINIO_BUILD_DIR \
-            --verbose
-      - name: Test
-        shell: bash
-        working-directory: ./dev
-        run: |
-          ctest \
-            -T test \
-            --test-dir $RESTINIO_BUILD_DIR \
-            --output-on-failure \
-            --no-compress-output
-
-
-  Build-Macos:
-    # The type of runner that the job will run on
-    name: macos-12 (${{ matrix.build_type }}, C++${{ matrix.cppstd }})
-    runs-on: macos-12
-    strategy:
-      fail-fast: false
-      matrix:
-        cppstd:
-          - 17
-          - 20
-        build_type:
-          - Release
-          - Debug
-    env:
-      RESTINIO_BUILD_DIR: _build_cpp${{ matrix.cppstd }}_${{ matrix.build_type }}
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Print env
+      - name: Install Boost
+        if: ${{ matrix.build_settings.asio_source == 'boost' }}
         run: |
-          echo github.event.action: ${{ github.event.action }}
-          echo github.event_name: ${{ github.event_name }}
-
-      - name: Install dependencies
-        run: |
-          gem install Mxx_ru
+          sudo apt-get update && sudo apt-get install -y libboost-all-dev
 
       - name: Configure
         shell: bash
@@ -194,8 +151,9 @@ jobs:
           cmake \
             -B ${RESTINIO_BUILD_DIR} \
             -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
-            -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.cppstd }} \
-            -DRESTINIO_TEST_SUFFIX=" [cpp${{ matrix.cppstd }}_${{ matrix.build_type }}]"
+            -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.build_settings.cppstd }} \
+            -DRESTINIO_ASIO_SOURCE=${{matrix.build_settings.asio_source}} \
+            -DRESTINIO_TEST_SUFFIX=" [${{ matrix.build_settings.cname }}_cpp${{ matrix.build_settings.cppstd }}_${{ matrix.build_type }}]"
       - name: Build
         working-directory: ./dev
         shell: bash
@@ -212,3 +170,58 @@ jobs:
             --test-dir $RESTINIO_BUILD_DIR \
             --output-on-failure \
             --no-compress-output
+
+
+  # Build-Macos:
+  #   # The type of runner that the job will run on
+  #   name: macos-12 (${{ matrix.build_type }}, C++${{ matrix.cppstd }})
+  #   runs-on: macos-12
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       cppstd:
+  #         - 17
+  #         - 20
+  #       build_type:
+  #         - Release
+  #         - Debug
+  #   env:
+  #     RESTINIO_BUILD_DIR: _build_cpp${{ matrix.cppstd }}_${{ matrix.build_type }}
+  #   steps:
+  #     - uses: actions/checkout@v3
+
+  #     - name: Print env
+  #       run: |
+  #         echo github.event.action: ${{ github.event.action }}
+  #         echo github.event_name: ${{ github.event_name }}
+
+  #     - name: Install dependencies
+  #       run: |
+  #         gem install Mxx_ru
+
+  #     - name: Configure
+  #       shell: bash
+  #       run: |
+  #         mxxruexternals
+  #         cd dev
+  #         cmake \
+  #           -B ${RESTINIO_BUILD_DIR} \
+  #           -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
+  #           -DRESTINIO_EXPLICIT_CPPSTD=${{ matrix.cppstd }} \
+  #           -DRESTINIO_TEST_SUFFIX=" [cpp${{ matrix.cppstd }}_${{ matrix.build_type }}]"
+  #     - name: Build
+  #       working-directory: ./dev
+  #       shell: bash
+  #       run: |
+  #         cmake \
+  #           --build $RESTINIO_BUILD_DIR \
+  #           --verbose
+  #     - name: Test
+  #       shell: bash
+  #       working-directory: ./dev
+  #       run: |
+  #         ctest \
+  #           -T test \
+  #           --test-dir $RESTINIO_BUILD_DIR \
+  #           --output-on-failure \
+  #           --no-compress-output