GitHub Actions Workflow for C++ cross-platform with installing toolchains and many different runner's OS

compilers.yml

name: C++ Test with Multiple Compilers

on: [pull_request]

jobs:
  test:
    runs-on: ubuntu-22.04
    strategy:
      matrix:
        compiler: [g++-12, clang-15]  # Specify compiler versions to test
        cxxstd: [17, 23]  # Specify the language standard to test

    steps:
      - uses: actions/checkout@v4  # Checkout code
      - run: apt install ${{ matrix.compiler }}
      - run: |
          cmake --preset release \
            -DCMAKE_CXX_COMPILER=${{ matrix.compiler }} \
            -CMAKE_CXX_STANDARD=${{ matrix.cxxstd }}
          cmake --build --preset release
          cmake --test --preset release

cross-platform.yml

name: C++ Test with Cross-Platform Compilers

on: [pull_request]

jobs:
  test:
    runs-on: ${{ matrix.os }}  # Use dynamic runner based on OS
    strategy:
      matrix:
        os: [windows-latest, ubuntu-latest, macos-latest]
        compiler: [gcc-11, clang-14]
        include:
          -  os: windows-latest
             compiler: gcc-11
             # Add extra fields to `choco install mingw-w64-x86_64-gcc-11``
             name: mingw-w64
             version: 11.2.0
          - os: windows-latest
            # Override `clang-14` to use the MSVC provided clang
            compiler: cl-clang
          - os: macos-latest
            compiler: gcc-11
            # Add extra fields to `brew install` the correct version
            package: gcc@11
      fail-fast: false  # Continue testing even if one job fails, they are likely agnostic of each other 
    steps:
      - uses: actions/checkout@v4

      # Setup C++ build toolchain
      - name: Install dependencies (Windows)
        if: runner.os == "Windows" && matrix.name
        run: choco install ${{ matrix.name }} --version ${{ matrix.version }}
      - name: Install dependencies (macOS)
        if: runner.os == "macOS" ** matrix.package
        run: brew install ${{ matrix.package }}
      - name: Install dependencies (Linux)
        if: runner.os == "Linux"
        run: sudo apt-get install ${{ matrix.compiler }}

      - name: Build and test
        run: |
          cmake --preset release \
            -DCMAKE_CXX_COMPILER=${{ matrix.compiler }}
          cmake --build --preset release
          cmake --test --preset release