diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53abe82bd..29b4eac43 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,1185 +30,1185 @@ jobs:
   # This is the "main" test suite, which tests a large number of different
   # versions of default compilers and Python versions in GitHub Actions.
   # It is in two parts: one that always runs, and one that runs on non-draft
-  standard-small:
-    if: github.event.action != 'ready_for_review'
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - runs-on: ubuntu-22.04
-            python-version: '3.8'
-            cmake-args: -DPYBIND11_FINDPYTHON=OFF -DPYBIND11_NUMPY_1_ONLY=ON
-          - runs-on: ubuntu-latest
-            python-version: '3.13'
-            cmake-args: -DCMAKE_CXX_STANDARD=23 -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
-          - runs-on: ubuntu-latest
-            python-version: '3.14t'
-            cmake-args: -DCMAKE_CXX_STANDARD=17 -DPYBIND11_TEST_SMART_HOLDER=ON
-          - runs-on: ubuntu-latest
-            python-version: 'pypy3.11'
-            cmake-args: -DCMAKE_CXX_STANDARD=17
-          - runs-on: ubuntu-latest
-            python-version: 'graalpy-24.2'
-            cmake-args: -DCMAKE_CXX_STANDARD=20
-          - runs-on: macos-latest
-            python-version: '3.14'
-            cmake-args: -DCMAKE_CXX_STANDARD=14
-          - runs-on: windows-2022
-            python-version: '3.8'
-            cmake-args: -DPYBIND11_FINDPYTHON=OFF
-          - runs-on: windows-11-arm
-            python-version: '3.11'
-            cmake-args: -DCMAKE_CXX_STANDARD=17
-
-
-    name: 🐍
-    uses: ./.github/workflows/reusable-standard.yml
-    with:
-      runs-on: ${{ matrix.runs-on }}
-      python-version: ${{ matrix.python-version }}
-      cmake-args: ${{ matrix.cmake-args }}
-
-  standard-large:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - runs-on: ubuntu-latest
-            python-version: '3.8'
-            cmake-args: -DPYBIND11_FINDPYTHON=ON -DCMAKE_CXX_STANDARD=17
-          - runs-on: ubuntu-latest
-            python-version: '3.10'
-            cmake-args: -DCMAKE_CXX_STANDARD=20
-          - runs-on: ubuntu-latest
-            python-version: '3.11'
-            cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DCMAKE_CXX_STANDARD=17
-          - runs-on: ubuntu-latest
-            python-version: '3.12'
-            cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
-          - runs-on: ubuntu-latest
-            python-version: '3.13t'
-            cmake-args: -DCMAKE_CXX_STANDARD=20 -DPYBIND11_DISABLE_HANDLE_TYPE_NAME_DEFAULT_IMPLEMENTATION=ON
-          - runs-on: ubuntu-latest
-            python-version: '3.14'
-            cmake-args: -DCMAKE_CXX_STANDARD=14 -DCMAKE_CXX_FLAGS="-DPYBIND11_HAS_SUBINTERPRETER_SUPPORT=0"
-          - runs-on: ubuntu-latest
-            python-version: 'pypy-3.10'
-            cmake-args: -DCMAKE_CXX_STANDARD=14
-          - runs-on: ubuntu-latest
-            python-version: 'graalpy-24.1'
-
-          # No SciPy for macOS ARM
-          - runs-on: macos-15-intel
-            python-version: '3.8'
-            cmake-args: -DCMAKE_CXX_STANDARD=14
-          - runs-on: macos-15-intel
-            python-version: '3.11'
-            cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON
-          - runs-on: macos-latest
-            python-version: '3.12'
-            cmake-args: -DCMAKE_CXX_STANDARD=17 -DPYBIND11_DISABLE_HANDLE_TYPE_NAME_DEFAULT_IMPLEMENTATION=ON
-          - runs-on: macos-15-intel
-            python-version: '3.13t'
-            cmake-args: -DCMAKE_CXX_STANDARD=11
-          - runs-on: macos-latest
-            python-version: '3.14t'
-            cmake-args: -DCMAKE_CXX_STANDARD=20
-          - runs-on: macos-15-intel
-            python-version: 'pypy-3.10'
-            cmake-args: -DCMAKE_CXX_STANDARD=17
-          - runs-on: macos-latest
-            python-version: 'pypy-3.11'
-          - runs-on: macos-latest
-            python-version: 'graalpy-24.2'
-
-          - runs-on: windows-latest
-            python-version: '3.9'
-            cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON
-          - runs-on: windows-2022
-            python-version: '3.8'
-            cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded -DPYBIND11_NUMPY_1_ONLY=ON
-          - runs-on: windows-2022
-            python-version: '3.9'
-            cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDLL -DCMAKE_CXX_STANDARD=14
-          # This needs a python built with MTd
-          # - runs-on: windows-2022
-          #   python-version: '3.11'
-          #   cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDebug
-          - runs-on: windows-2022
-            python-version: '3.10'
-            cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DCMAKE_CXX_FLAGS="/GR /EHsc"
-          - runs-on: windows-2022
-            python-version: '3.13'
-            cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDebugDLL
-          - runs-on: windows-latest
-            python-version: '3.13t'
-            cmake-args: -DCMAKE_CXX_STANDARD=17
-          - runs-on: windows-latest
-            python-version: '3.14'
-            cmake-args: -DCMAKE_CXX_STANDARD=20
-          - runs-on: windows-latest
-            python-version: '3.14t'
-            cmake-args: -DCMAKE_CXX_STANDARD=23
-          - runs-on: windows-latest
-            python-version: 'pypy-3.10'
-            cmake-args: -DCMAKE_CXX_STANDARD=17
-          - runs-on: windows-latest
-            python-version: 'pypy3.11'
-            cmake-args: -DCMAKE_CXX_STANDARD=20
-          # The setup-python action currently doesn't have graalpy for windows
-          # See https://github.com/actions/setup-python/pull/880
-
-    name: 🐍
-    uses: ./.github/workflows/reusable-standard.yml
-    with:
-      runs-on: ${{ matrix.runs-on }}
-      python-version: ${{ matrix.python-version }}
-      cmake-args: ${{ matrix.cmake-args }}
-
-  # This checks inplace builds with C++11
-  inplace:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - runs-on: ubuntu-latest
-            python-version: '3.9'
-          - runs-on: macos-latest
-            python-version: '3.12'
-          - runs-on: windows-latest
-            python-version: '3.11'
-
-    name: "🐍 ${{ matrix.python-version }} • ${{ matrix.runs-on }} • x64 inplace C++14"
-    runs-on: ${{ matrix.runs-on }}
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v6
-      with:
-        python-version: ${{ matrix.python-version }}
-        allow-prereleases: true
-
-    - name: Install uv
-      uses: astral-sh/setup-uv@v7
-      with:
-        enable-cache: true
-
-    - name: Prepare env
-      run: uv pip install --python=python --system -r tests/requirements.txt
-
-    # TODO Resolve Windows Ninja shared object issue on Python 3.8+
-    - name: Use Ninja except on Windows
-      if: runner.os != 'Windows'
-      run: echo "CMAKE_GENERATOR=Ninja" >> "$GITHUB_ENV"
-
-    # More-or-less randomly adding a few extra flags here.
-    # In particular, use this one to test the next ABI bump (internals version).
-    - name: Configure
-      run: >
-        cmake -S. -B.
-        -DPYBIND11_WERROR=ON
-        -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
-        -DPYBIND11_PYTEST_ARGS=-v
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        -DCMAKE_CXX_STANDARD=14
-        -DPYBIND11_INTERNALS_VERSION=10000000
-
-    # Checks to makes sure defining `_` is allowed
-    # Triggers EHsc missing error on Windows
-    - name: Add underscore check
-      if: runner.os != 'Windows'
-      run: cmake -S. -B. -DCMAKE_CXX_FLAGS="-D_=1"
-
-    - name: Build
-      run: cmake --build .
-
-    - name: Python tests
-      run: cmake --build . --target pytest
-
-    - name: Compiled tests
-      run: cmake --build . --target cpptest
-
-    - name: Interface test
-      run: cmake --build . --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build . --target test_cross_module_rtti
-
-
-  manylinux:
-    name: Manylinux on 🐍 3.13t • GIL
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    timeout-minutes: 40
-    container: quay.io/pypa/musllinux_1_2_x86_64:latest
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          fetch-depth: 0
-
-      - name: Prepare uv's path
-        run: echo "$HOME/.local/bin" >> $GITHUB_PATH
-
-      - name: Install ninja
-        run: uv tool install ninja
-
-      - name: Configure via preset
-        run: cmake --preset venv -DPYBIND11_CREATE_WITH_UV=python3.13t
-
-      - name: Build C++11
-        run: cmake --build --preset venv
-
-      - name: Python tests C++11
-        run: cmake --build --preset testsvenv -t pytest
-
-  deadsnakes:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-        # TODO: Fails on 3.10, investigate
-        # JOB DISABLED (NEEDS WORK): https://github.com/pybind/pybind11/issues/4889
-        # - python-version: "3.9"
-        #   python-debug: true
-        #   valgrind: true
-        - python-version: "3.11"
-          python-debug: false
-
-    name: "🐍 ${{ matrix.python-version }}${{ matrix.python-debug && '-dbg' || '' }} (deadsnakes)${{ matrix.valgrind && ' • Valgrind' || '' }} • x64"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Setup Python ${{ matrix.python-version }} (deadsnakes)
-      uses: deadsnakes/action@v3.2.0
-      with:
-        python-version: ${{ matrix.python-version }}
-        debug: ${{ matrix.python-debug }}
-
-    - name: Update CMake
-      uses: jwlawson/actions-setup-cmake@v2.0
-
-    - name: Valgrind cache
-      if: matrix.valgrind
-      uses: actions/cache@v4
-      id: cache-valgrind
-      with:
-        path: valgrind
-        key: 3.16.1 # Valgrind version
-
-    - name: Compile Valgrind
-      if: matrix.valgrind && steps.cache-valgrind.outputs.cache-hit != 'true'
-      run: |
-        VALGRIND_VERSION=3.16.1
-        curl https://sourceware.org/pub/valgrind/valgrind-$VALGRIND_VERSION.tar.bz2 -o - | tar xj
-        mv valgrind-$VALGRIND_VERSION valgrind
-        cd valgrind
-        ./configure
-        make -j 2 > /dev/null
-
-    - name: Install Valgrind
-      if: matrix.valgrind
-      working-directory: valgrind
-      run: |
-        sudo make install
-        sudo apt-get update
-        sudo apt-get install ninja-build libc6-dbg
-
-    - name: Prepare env
-      run: |
-        python -m pip install -r tests/requirements.txt
-
-    - name: Configure
-      run: cmake --preset default -DCMAKE_CXX_STANDARD=17
-
-    - name: Build
-      run: cmake --build --preset default
-
-    - name: Python tests
-      run: cmake --build --preset default --target pytest
-
-    - name: C++ tests
-      run: cmake --build --preset default --target cpptest
-
-    - name: Visibility test
-      run: cmake --build --preset default --target test_cross_module_rtti
-
-    - name: Run Valgrind on Python tests
-      if: matrix.valgrind
-      run: cmake --build --preset default --target memcheck
-
-
-  # Testing on clang using the excellent silkeh clang docker images
-  clang:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - clang: 5
-            std: 14
-          - clang: 11
-            std: 20
-          - clang: 14
-            std: 20
-          - clang: 16
-            std: 20
-            container_suffix: "-bullseye"
-          - clang: 18
-            std: 20
-            cxx_flags: "-Werror -Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls"
-            container_suffix: "-bookworm"
-
-    name: "🐍 3 • Clang ${{ matrix.clang }} • C++${{ matrix.std }} • x64${{ matrix.cxx_flags && ' • cxx_flags' || '' }}"
-    container: "silkeh/clang:${{ matrix.clang }}${{ matrix.container_suffix }}"
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Add wget and python3
-      run: apt-get update && apt-get install -y python3-dev python3-numpy python3-pytest libeigen3-dev
-
-    - name: Configure
-      shell: bash
-      run: >
-        cmake -S . -B build
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DCMAKE_CXX_STANDARD=${{ matrix.std }}
-        -DCMAKE_CXX_FLAGS="${{ matrix.cxx_flags }}"
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Build
-      run: cmake --build build -j 2
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-    - name: C++ tests
-      run: cmake --build build --target cpptest
-
-    - name: Interface test
-      run: cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build build --target test_cross_module_rtti
-
-  # Testing NVCC; forces sources to behave like .cu files
-  cuda:
-    runs-on: ubuntu-latest
-    name: "🐍 3.10 • CUDA 12.2 • Ubuntu 22.04"
-    container: nvidia/cuda:12.2.0-devel-ubuntu22.04
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    # tzdata will try to ask for the timezone, so set the DEBIAN_FRONTEND
-    - name: Install 🐍 3
-      run: apt-get update && DEBIAN_FRONTEND="noninteractive" apt-get install -y cmake git python3-dev python3-pytest python3-numpy
-
-    - name: Configure
-      run: cmake -S . -B build -DPYBIND11_CUDA_TESTS=ON -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
-
-    - name: Build
-      run: cmake --build build -j2 --verbose
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-
-# TODO: Internal compiler error - report to NVidia
-#  # Testing CentOS 8 + PGI compilers
-#  centos-nvhpc8:
-#    runs-on: ubuntu-latest
-#    name: "🐍 3 • CentOS8 / PGI 20.11 • x64"
-#    container: centos:8
-#
-#    steps:
-#    - uses: actions/checkout@v6
-#
-#    - name: Add Python 3 and a few requirements
-#      run: yum update -y && yum install -y git python3-devel python3-numpy python3-pytest make environment-modules
-#
-#    - name: Install CMake with pip
-#      run: |
-#        python3 -m pip install --upgrade pip
-#        python3 -m pip install cmake --prefer-binary
-#
-#    - name: Install NVidia HPC SDK
-#      run: >
-#        yum -y install
-#        https://developer.download.nvidia.com/hpc-sdk/20.11/nvhpc-20-11-20.11-1.x86_64.rpm
-#        https://developer.download.nvidia.com/hpc-sdk/20.11/nvhpc-2020-20.11-1.x86_64.rpm
-#
-#    - name: Configure
-#      shell: bash
-#      run: |
-#        source /etc/profile.d/modules.sh
-#        module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/20.11
-#        cmake -S . -B build -DDOWNLOAD_CATCH=ON -DCMAKE_CXX_STANDARD=14 -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-#
-#    - name: Build
-#      run: cmake --build build -j 2 --verbose
-#
-#    - name: Python tests
-#      run: cmake --build build --target pytest
-#
-#    - name: C++ tests
-#      run: cmake --build build --target cpptest
-#
-#    - name: Interface test
-#      run: cmake --build build --target test_cmake_build
-
-
-  # Testing on Ubuntu + NVHPC (previous PGI) compilers, which seems to require more workarounds
-  ubuntu-nvhpc7:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-22.04
-    name: "🐍 3 • NVHPC 23.5 • C++17 • x64"
-    timeout-minutes: 90
-
-    env:
-      # tzdata will try to ask for the timezone, so set the DEBIAN_FRONTEND
-      DEBIAN_FRONTEND: 'noninteractive'
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Add NVHPC Repo
-      run: |
-        echo 'deb [trusted=yes] https://developer.download.nvidia.com/hpc-sdk/ubuntu/amd64 /' | \
-          sudo tee /etc/apt/sources.list.d/nvhpc.list
-
-    - name: Install 🐍 3 & NVHPC
-      run: |
-        sudo apt-get update -y && \
-        sudo apt-get install -y cmake environment-modules git python3-dev python3-pip python3-numpy && \
-        sudo apt-get install -y --no-install-recommends nvhpc-23-5 && \
-        sudo rm -rf /var/lib/apt/lists/*
-        python3 -m pip install --upgrade pip
-        python3 -m pip install --upgrade pytest
-
-    # On some systems, you many need further workarounds:
-    # https://github.com/pybind/pybind11/pull/2475
-    - name: Configure
-      shell: bash
-      run: |
-        source /etc/profile.d/modules.sh
-        module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/23.5
-        cmake -S . -B build -DDOWNLOAD_CATCH=ON \
-                            -DCMAKE_CXX_STANDARD=17 \
-                            -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)") \
-                            -DCMAKE_CXX_FLAGS="-Wc,--pending_instantiations=0" \
-                            -DPYBIND11_TEST_FILTER="test_smart_ptr.cpp"
-
-    - name: Build
-      run: cmake --build build -j 2 --verbose
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-    - name: C++ tests
-      run: cmake --build build --target cpptest
-
-    - name: Interface test
-      run: cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build build --target test_cross_module_rtti
-
-  # Testing on GCC using the GCC docker images (only recent images supported)
-  gcc:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - { gcc: 9, std: 20 }
-          - { gcc: 10, std: 17 }
-          - { gcc: 10, std: 20 }
-          - { gcc: 13, std: 20, cxx_flags: "-Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls" }
-
-    name: "🐍 3 • GCC ${{ matrix.gcc }} • C++${{ matrix.std }} • x64${{ matrix.cxx_flags && ' • cxx_flags' || '' }}"
-    container: "gcc:${{ matrix.gcc }}"
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Add Python 3
-      run: apt-get update; apt-get install -y python3-dev python3-numpy python3-pytest python3-pip libeigen3-dev
-
-    - name: Update pip
-      run: python3 -m pip install --upgrade pip
-
-    - name: Update CMake
-      uses: jwlawson/actions-setup-cmake@v2.0
-
-    - name: Configure
-      shell: bash
-      run: >
-        cmake -S . -B build
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DCMAKE_CXX_STANDARD=${{ matrix.std }}
-        -DCMAKE_CXX_FLAGS="${{ matrix.cxx_flags }}"
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Build
-      run: cmake --build build -j 2
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-    - name: C++ tests
-      run: cmake --build build --target cpptest
-
-    - name: Interface test
-      run: cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build build --target test_cross_module_rtti
-
-    - name: Configure - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      if: matrix.gcc == '12'
-      shell: bash
-      run: >
-        cmake -S . -B build_partial
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DCMAKE_CXX_STANDARD=${{ matrix.std }}
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-        "-DPYBIND11_TEST_OVERRIDE=test_call_policies.cpp;test_gil_scoped.cpp;test_thread.cpp"
-
-    - name: Build - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      if: matrix.gcc == '12'
-      run: cmake --build build_partial -j 2
-
-    - name: Python tests - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      if: matrix.gcc == '12'
-      run: cmake --build build_partial --target pytest
-
-  # Testing on ICC using the oneAPI apt repo
-  icc:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-22.04
-    timeout-minutes: 90
-
-    name: "🐍 3 • ICC latest • x64"
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Add apt repo
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y wget build-essential pkg-config cmake ca-certificates gnupg
-        wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
-        sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
-        echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
-
-    - name: Add ICC & Python 3
-      run: sudo apt-get update; sudo apt-get install -y intel-oneapi-compiler-dpcpp-cpp-and-cpp-classic cmake python3-dev python3-numpy python3-pytest python3-pip
-
-    - name: Update pip
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        python3 -m pip install --upgrade pip
-
-    - name: Install dependencies
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        python3 -m pip install -r tests/requirements.txt
-
-    - name: Configure C++11
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake -S . -B build-11     \
-        -DPYBIND11_WERROR=ON    \
-        -DDOWNLOAD_CATCH=ON     \
-        -DDOWNLOAD_EIGEN=OFF    \
-        -DCMAKE_CXX_STANDARD=11             \
-        -DCMAKE_CXX_COMPILER=$(which icpc)  \
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Build C++11
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-11 -j 2 -v
-
-    - name: Python tests C++11
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        sudo service apport stop
-        cmake --build build-11 --target check
-
-    - name: C++ tests C++11
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-11 --target cpptest
-
-    - name: Interface test C++11
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-11 --target test_cmake_build
-
-    - name: Visibility test
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-11 --target test_cross_module_rtti
-
-    - name: Configure C++17
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake -S . -B build-17     \
-        -DPYBIND11_WERROR=ON    \
-        -DDOWNLOAD_CATCH=ON     \
-        -DDOWNLOAD_EIGEN=OFF    \
-        -DCMAKE_CXX_STANDARD=17             \
-        -DCMAKE_CXX_COMPILER=$(which icpc)  \
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Build C++17
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-17 -j 2 -v
-
-    - name: Python tests C++17
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        sudo service apport stop
-        cmake --build build-17 --target check
-
-    - name: C++ tests C++17
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-17 --target cpptest
-
-    - name: Interface test C++17
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-17 --target test_cmake_build
-
-    - name: Visibility test
-      run: |
-        set +e; source /opt/intel/oneapi/setvars.sh; set -e
-        cmake --build build-17 --target test_cross_module_rtti
-
-  # Testing on CentOS (manylinux uses a centos base).
-  centos:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        container:
-          - "almalinux:8"
-          - "almalinux:9"
-
-    name: "🐍 3 • ${{ matrix.container }} • x64"
-    container: "${{ matrix.container }}"
-    timeout-minutes: 90
-
-    steps:
-    - name: Latest actions/checkout
-      uses: actions/checkout@v6
-
-    - name: Add Python 3.8
-      if: matrix.container == 'almalinux:8'
-      run: dnf update -y && dnf install -y python38-devel gcc-c++ make git
-
-    - name: Add Python 3 (default)
-      if: matrix.container != 'almalinux:8'
-      run: dnf update -y && dnf install -y python3-devel gcc-c++ make git
-
-    - name: Update pip
-      run: python3 -m pip install --upgrade pip
-
-    - name: Install dependencies
-      run: |
-        python3 -m pip install cmake -r tests/requirements.txt
-
-    - name: Ensure NumPy 2 is used (required Python >= 3.9)
-      if: matrix.container == 'almalinux:9'
-      run: |
-        python3 -m pip install 'numpy>=2.0.0b1' 'scipy>=1.13.0rc1'
-
-    - name: Configure
-      shell: bash
-      run: >
-        cmake -S . -B build
-        -DCMAKE_BUILD_TYPE=MinSizeRel
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        -DCMAKE_CXX_STANDARD=11
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Build
-      run: cmake --build build -j 2
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-    - name: C++ tests
-      run: cmake --build build --target cpptest
-
-    - name: Interface test
-      run: cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build build --target test_cross_module_rtti
-
-
-  # This tests an "install" with the CMake tools
-  install-classic:
-    if: github.event.pull_request.draft == false
-    name: "🐍 3.9 • Debian • x86 •  Install"
-    runs-on: ubuntu-latest
-    container: i386/debian:bullseye
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v1  # v1 is required to run inside docker
-
-    - name: Install requirements
-      run: |
-        apt-get update
-        apt-get install -y git make cmake g++ libeigen3-dev python3-dev python3-pip
-        pip3 install "pytest==6.*"
-
-    - name: Configure for install
-      run: >
-        cmake .
-        -DPYBIND11_INSTALL=1 -DPYBIND11_TEST=0
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-
-    - name: Make and install
-      run: make install
-
-    - name: Copy tests to new directory
-      run: cp -a tests /pybind11-tests
-
-    - name: Make a new test directory
-      run: mkdir /build-tests
-
-    - name: Configure tests
-      run: >
-        cmake ../pybind11-tests
-        -DDOWNLOAD_CATCH=ON
-        -DPYBIND11_WERROR=ON
-        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
-      working-directory: /build-tests
-
-    - name: Python tests
-      run: make pytest -j 2
-      working-directory: /build-tests
-
-
-  # This verifies that the documentation is not horribly broken, and does a
-  # basic validation check on the SDist.
-  doxygen:
-    if: github.event.pull_request.draft == false
-    name: "Documentation build test"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - uses: actions/setup-python@v6
-      with:
-        python-version: "3.x"
-
-    - name: Install Doxygen
-      run: sudo apt-get install -y doxygen librsvg2-bin # Changed to rsvg-convert in 20.04
-
-    - name: Build docs
-      run: pipx run nox -s docs
-
-    - name: Make SDist
-      run: pipx run nox -s build -- --sdist
-
-    - run: git status --ignored
-
-    - name: Check local include dir
-      run: >
-        ls pybind11;
-        python3 -c "import pybind11, pathlib; assert (a := pybind11.get_include()) == (b := str(pathlib.Path('include').resolve())), f'{a} != {b}'"
-
-    - name: Compare Dists (headers only)
-      working-directory: include
-      run: |
-        python3 -m pip install --user -U ../dist/*.tar.gz
-        installed=$(python3 -c "import pybind11; print(pybind11.get_include() + '/pybind11')")
-        diff -rq $installed ./pybind11
-
-  win32:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - python: '3.8'
-            args: -DCMAKE_CXX_STANDARD=17
-          - python: '3.10'
-            args: -DCMAKE_CXX_STANDARD=20
-          - python: '3.13'
-
-
-    name: "🐍 ${{ matrix.python }} • MSVC 2022 • x86 ${{ matrix.args }}"
-    runs-on: windows-2022
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Setup Python ${{ matrix.python }}
-      uses: actions/setup-python@v6
-      with:
-        python-version: ${{ matrix.python }}
-        architecture: x86
-        # Python 3.13.4 broken on Windows
-        check-latest: >-
-          ${{ matrix.python == '3.13' && runner.os == 'Windows' }}
-
-    - name: Update CMake
-      uses: jwlawson/actions-setup-cmake@v2.0
-
-    - name: Prepare MSVC
-      uses: ilammy/msvc-dev-cmd@v1.13.0
-      with:
-        arch: x86
-
-    - name: Prepare env
-      run: |
-        python -m pip install -r tests/requirements.txt
-
-    - name: Configure ${{ matrix.args }}
-      run: >
-        cmake -S . -B build
-        -G "Visual Studio 17 2022" -A Win32
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        ${{ matrix.args }}
-    - name: Build C++11
-      run: cmake --build build -j 2
-
-    - name: Python tests
-      run: cmake --build build -t pytest
-
-  win32-debug:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - python: 3.9
-            args: -DCMAKE_CXX_STANDARD=20
-          - python: 3.8
-            args: -DCMAKE_CXX_STANDARD=17
-
-    name: "🐍 ${{ matrix.python }} • MSVC 2022 (Debug) • x86 ${{ matrix.args }}"
-    runs-on: windows-2022
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Setup Python ${{ matrix.python }}
-      uses: actions/setup-python@v6
-      with:
-        python-version: ${{ matrix.python }}
-        architecture: x86
-
-    - name: Update CMake
-      uses: jwlawson/actions-setup-cmake@v2.0
-
-    - name: Prepare MSVC
-      uses: ilammy/msvc-dev-cmd@v1.13.0
-      with:
-        arch: x86
-
-    - name: Prepare env
-      run: |
-        python -m pip install -r tests/requirements.txt
-
-    - name: Configure ${{ matrix.args }}
-      run: >
-        cmake -S . -B build
-        -G "Visual Studio 17 2022" -A Win32
-        -DCMAKE_BUILD_TYPE=Debug
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        ${{ matrix.args }}
-    - name: Build C++11
-      run: cmake --build build --config Debug -j 2
-
-    - name: Python tests
-      run: cmake --build build --config Debug -t pytest
-
-
-  windows-2022:
-    if: github.event.pull_request.draft == false
-    strategy:
-      fail-fast: false
-      matrix:
-        python:
-        - 3.9
-
-    name: "🐍 ${{ matrix.python }} • MSVC 2022 C++20 • x64"
-    runs-on: windows-2022
-    timeout-minutes: 90
-
-    steps:
-    - uses: actions/checkout@v6
-
-    - name: Setup Python ${{ matrix.python }}
-      uses: actions/setup-python@v6
-      with:
-        python-version: ${{ matrix.python }}
-
-    - name: Prepare env
-      run: python3 -m pip install -r tests/requirements.txt
-
-    - name: Update CMake
-      uses: jwlawson/actions-setup-cmake@v2.0
-
-    - name: Configure C++20
-      run: >
-        cmake -S . -B build
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        -DCMAKE_CXX_STANDARD=20
-
-    - name: Build C++20
-      run: cmake --build build -j 2
-
-    - name: Python tests
-      run: cmake --build build --target pytest
-
-    - name: C++20 tests
-      run: cmake --build build --target cpptest -j 2
-
-    - name: Interface test C++20
-      run: cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: cmake --build build --target test_cross_module_rtti
-
-    - name: Configure C++20 - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      run: >
-        cmake -S . -B build_partial
-        -DPYBIND11_WERROR=ON
-        -DDOWNLOAD_CATCH=ON
-        -DDOWNLOAD_EIGEN=ON
-        -DCMAKE_CXX_STANDARD=20
-        "-DPYBIND11_TEST_OVERRIDE=test_call_policies.cpp;test_gil_scoped.cpp;test_thread.cpp"
-
-    - name: Build C++20 - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      run: cmake --build build_partial -j 2
-
-    - name: Python tests - Exercise cmake -DPYBIND11_TEST_OVERRIDE
-      run: cmake --build build_partial --target pytest
-
-  mingw:
-    if: github.event.pull_request.draft == false
-    name: "🐍 3 • windows-latest • ${{ matrix.sys }}"
-    runs-on: windows-latest
-    timeout-minutes: 90
-    defaults:
-      run:
-        shell: msys2 {0}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - sys: mingw32
-            env: i686
-            extra_install: ""
-          - sys: mingw64
-            env: x86_64
-            extra_install: |
-              mingw-w64-x86_64-python-numpy
-              mingw-w64-x86_64-python-scipy
-              mingw-w64-x86_64-eigen3
-    steps:
-    - uses: msys2/setup-msys2@v2
-      with:
-        msystem: ${{matrix.sys}}
-        install: >-
-          git
-          mingw-w64-${{matrix.env}}-gcc
-          mingw-w64-${{matrix.env}}-python-pip
-          mingw-w64-${{matrix.env}}-cmake
-          mingw-w64-${{matrix.env}}-make
-          mingw-w64-${{matrix.env}}-python-pytest
-          mingw-w64-${{matrix.env}}-boost
-          mingw-w64-${{matrix.env}}-catch
-          ${{ matrix.extra_install }}
-
-    - uses: actions/checkout@v6
-
-    - name: Configure C++11
-      # LTO leads to many undefined reference like
-      # `pybind11::detail::function_call::function_call(pybind11::detail::function_call&&)
-      run: >-
-        cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=11 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
-        -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
-        -S . -B build
-
-    - name: Build C++11
-      run: cmake --build build -j 2
-
-    - name: Python tests C++11
-      run: cmake --build build --target pytest -j 2
-
-    - name: C++11 tests
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target cpptest -j 2
-
-    - name: Interface test C++11
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target test_cmake_build
-
-    - name: Visibility test
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target test_cross_module_rtti
-
-    - name: Clean directory
-      run: git clean -fdx
-
-    - name: Configure C++14
-      run: >-
-        cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=14 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
-        -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
-        -S . -B build2
-
-    - name: Build C++14
-      run: cmake --build build2 -j 2
-
-    - name: Python tests C++14
-      run: cmake --build build2 --target pytest -j 2
-
-    - name: C++14 tests
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target cpptest -j 2
-
-    - name: Interface test C++14
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target test_cmake_build
-
-    - name: Visibility test
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target test_cross_module_rtti
-
-    - name: Clean directory
-      run: git clean -fdx
-
-    - name: Configure C++17
-      run: >-
-        cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=17 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
-        -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
-        -S . -B build3
-
-    - name: Build C++17
-      run: cmake --build build3 -j 2
-
-    - name: Python tests C++17
-      run: cmake --build build3 --target pytest -j 2
-
-    - name: C++17 tests
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target cpptest -j 2
-
-    - name: Interface test C++17
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target test_cmake_build
-
-    - name: Visibility test
-      run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target test_cross_module_rtti
-
-  windows_clang:
-    if: github.event.pull_request.draft == false
-
-    strategy:
-      matrix:
-        os: [windows-latest]
-        python: ['3.10']
+#   standard-small:
+#     if: github.event.action != 'ready_for_review'
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - runs-on: ubuntu-22.04
+#             python-version: '3.8'
+#             cmake-args: -DPYBIND11_FINDPYTHON=OFF -DPYBIND11_NUMPY_1_ONLY=ON
+#           - runs-on: ubuntu-latest
+#             python-version: '3.13'
+#             cmake-args: -DCMAKE_CXX_STANDARD=23 -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
+#           - runs-on: ubuntu-latest
+#             python-version: '3.14t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17 -DPYBIND11_TEST_SMART_HOLDER=ON
+#           - runs-on: ubuntu-latest
+#             python-version: 'pypy3.11'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17
+#           - runs-on: ubuntu-latest
+#             python-version: 'graalpy-24.2'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20
+#           - runs-on: macos-latest
+#             python-version: '3.14'
+#             cmake-args: -DCMAKE_CXX_STANDARD=14
+#           - runs-on: windows-2022
+#             python-version: '3.8'
+#             cmake-args: -DPYBIND11_FINDPYTHON=OFF
+#           - runs-on: windows-11-arm
+#             python-version: '3.11'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17
+
+
+#     name: 🐍
+#     uses: ./.github/workflows/reusable-standard.yml
+#     with:
+#       runs-on: ${{ matrix.runs-on }}
+#       python-version: ${{ matrix.python-version }}
+#       cmake-args: ${{ matrix.cmake-args }}
+
+#   standard-large:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - runs-on: ubuntu-latest
+#             python-version: '3.8'
+#             cmake-args: -DPYBIND11_FINDPYTHON=ON -DCMAKE_CXX_STANDARD=17
+#           - runs-on: ubuntu-latest
+#             python-version: '3.10'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20
+#           - runs-on: ubuntu-latest
+#             python-version: '3.11'
+#             cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DCMAKE_CXX_STANDARD=17
+#           - runs-on: ubuntu-latest
+#             python-version: '3.12'
+#             cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
+#           - runs-on: ubuntu-latest
+#             python-version: '3.13t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20 -DPYBIND11_DISABLE_HANDLE_TYPE_NAME_DEFAULT_IMPLEMENTATION=ON
+#           - runs-on: ubuntu-latest
+#             python-version: '3.14'
+#             cmake-args: -DCMAKE_CXX_STANDARD=14 -DCMAKE_CXX_FLAGS="-DPYBIND11_HAS_SUBINTERPRETER_SUPPORT=0"
+#           - runs-on: ubuntu-latest
+#             python-version: 'pypy-3.10'
+#             cmake-args: -DCMAKE_CXX_STANDARD=14
+#           - runs-on: ubuntu-latest
+#             python-version: 'graalpy-24.1'
+
+#           # No SciPy for macOS ARM
+#           - runs-on: macos-15-intel
+#             python-version: '3.8'
+#             cmake-args: -DCMAKE_CXX_STANDARD=14
+#           - runs-on: macos-15-intel
+#             python-version: '3.11'
+#             cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON
+#           - runs-on: macos-latest
+#             python-version: '3.12'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17 -DPYBIND11_DISABLE_HANDLE_TYPE_NAME_DEFAULT_IMPLEMENTATION=ON
+#           - runs-on: macos-15-intel
+#             python-version: '3.13t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=11
+#           - runs-on: macos-latest
+#             python-version: '3.14t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20
+#           - runs-on: macos-15-intel
+#             python-version: 'pypy-3.10'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17
+#           - runs-on: macos-latest
+#             python-version: 'pypy-3.11'
+#           - runs-on: macos-latest
+#             python-version: 'graalpy-24.2'
+
+#           - runs-on: windows-latest
+#             python-version: '3.9'
+#             cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON
+#           - runs-on: windows-2022
+#             python-version: '3.8'
+#             cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded -DPYBIND11_NUMPY_1_ONLY=ON
+#           - runs-on: windows-2022
+#             python-version: '3.9'
+#             cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDLL -DCMAKE_CXX_STANDARD=14
+#           # This needs a python built with MTd
+#           # - runs-on: windows-2022
+#           #   python-version: '3.11'
+#           #   cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDebug
+#           - runs-on: windows-2022
+#             python-version: '3.10'
+#             cmake-args: -DPYBIND11_TEST_SMART_HOLDER=ON -DCMAKE_CXX_FLAGS="/GR /EHsc"
+#           - runs-on: windows-2022
+#             python-version: '3.13'
+#             cmake-args: -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreadedDebugDLL
+#           - runs-on: windows-latest
+#             python-version: '3.13t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17
+#           - runs-on: windows-latest
+#             python-version: '3.14'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20
+#           - runs-on: windows-latest
+#             python-version: '3.14t'
+#             cmake-args: -DCMAKE_CXX_STANDARD=23
+#           - runs-on: windows-latest
+#             python-version: 'pypy-3.10'
+#             cmake-args: -DCMAKE_CXX_STANDARD=17
+#           - runs-on: windows-latest
+#             python-version: 'pypy3.11'
+#             cmake-args: -DCMAKE_CXX_STANDARD=20
+#           # The setup-python action currently doesn't have graalpy for windows
+#           # See https://github.com/actions/setup-python/pull/880
+
+#     name: 🐍
+#     uses: ./.github/workflows/reusable-standard.yml
+#     with:
+#       runs-on: ${{ matrix.runs-on }}
+#       python-version: ${{ matrix.python-version }}
+#       cmake-args: ${{ matrix.cmake-args }}
+
+#   # This checks inplace builds with C++11
+#   inplace:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - runs-on: ubuntu-latest
+#             python-version: '3.9'
+#           - runs-on: macos-latest
+#             python-version: '3.12'
+#           - runs-on: windows-latest
+#             python-version: '3.11'
+
+#     name: "🐍 ${{ matrix.python-version }} • ${{ matrix.runs-on }} • x64 inplace C++14"
+#     runs-on: ${{ matrix.runs-on }}
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Setup Python ${{ matrix.python-version }}
+#       uses: actions/setup-python@v6
+#       with:
+#         python-version: ${{ matrix.python-version }}
+#         allow-prereleases: true
+
+#     - name: Install uv
+#       uses: astral-sh/setup-uv@v7
+#       with:
+#         enable-cache: true
+
+#     - name: Prepare env
+#       run: uv pip install --python=python --system -r tests/requirements.txt
+
+#     # TODO Resolve Windows Ninja shared object issue on Python 3.8+
+#     - name: Use Ninja except on Windows
+#       if: runner.os != 'Windows'
+#       run: echo "CMAKE_GENERATOR=Ninja" >> "$GITHUB_ENV"
+
+#     # More-or-less randomly adding a few extra flags here.
+#     # In particular, use this one to test the next ABI bump (internals version).
+#     - name: Configure
+#       run: >
+#         cmake -S. -B.
+#         -DPYBIND11_WERROR=ON
+#         -DPYBIND11_SIMPLE_GIL_MANAGEMENT=ON
+#         -DPYBIND11_PYTEST_ARGS=-v
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         -DCMAKE_CXX_STANDARD=14
+#         -DPYBIND11_INTERNALS_VERSION=10000000
+
+#     # Checks to makes sure defining `_` is allowed
+#     # Triggers EHsc missing error on Windows
+#     - name: Add underscore check
+#       if: runner.os != 'Windows'
+#       run: cmake -S. -B. -DCMAKE_CXX_FLAGS="-D_=1"
+
+#     - name: Build
+#       run: cmake --build .
+
+#     - name: Python tests
+#       run: cmake --build . --target pytest
+
+#     - name: Compiled tests
+#       run: cmake --build . --target cpptest
+
+#     - name: Interface test
+#       run: cmake --build . --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build . --target test_cross_module_rtti
+
+
+#   manylinux:
+#     name: Manylinux on 🐍 3.13t • GIL
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-latest
+#     timeout-minutes: 40
+#     container: quay.io/pypa/musllinux_1_2_x86_64:latest
+#     steps:
+#       - uses: actions/checkout@v6
+#         with:
+#           fetch-depth: 0
+
+#       - name: Prepare uv's path
+#         run: echo "$HOME/.local/bin" >> $GITHUB_PATH
+
+#       - name: Install ninja
+#         run: uv tool install ninja
+
+#       - name: Configure via preset
+#         run: cmake --preset venv -DPYBIND11_CREATE_WITH_UV=python3.13t
+
+#       - name: Build C++11
+#         run: cmake --build --preset venv
+
+#       - name: Python tests C++11
+#         run: cmake --build --preset testsvenv -t pytest
+
+#   deadsnakes:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#         # TODO: Fails on 3.10, investigate
+#         # JOB DISABLED (NEEDS WORK): https://github.com/pybind/pybind11/issues/4889
+#         # - python-version: "3.9"
+#         #   python-debug: true
+#         #   valgrind: true
+#         - python-version: "3.11"
+#           python-debug: false
+
+#     name: "🐍 ${{ matrix.python-version }}${{ matrix.python-debug && '-dbg' || '' }} (deadsnakes)${{ matrix.valgrind && ' • Valgrind' || '' }} • x64"
+#     runs-on: ubuntu-latest
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Setup Python ${{ matrix.python-version }} (deadsnakes)
+#       uses: deadsnakes/action@v3.2.0
+#       with:
+#         python-version: ${{ matrix.python-version }}
+#         debug: ${{ matrix.python-debug }}
+
+#     - name: Update CMake
+#       uses: jwlawson/actions-setup-cmake@v2.0
+
+#     - name: Valgrind cache
+#       if: matrix.valgrind
+#       uses: actions/cache@v4
+#       id: cache-valgrind
+#       with:
+#         path: valgrind
+#         key: 3.16.1 # Valgrind version
+
+#     - name: Compile Valgrind
+#       if: matrix.valgrind && steps.cache-valgrind.outputs.cache-hit != 'true'
+#       run: |
+#         VALGRIND_VERSION=3.16.1
+#         curl https://sourceware.org/pub/valgrind/valgrind-$VALGRIND_VERSION.tar.bz2 -o - | tar xj
+#         mv valgrind-$VALGRIND_VERSION valgrind
+#         cd valgrind
+#         ./configure
+#         make -j 2 > /dev/null
+
+#     - name: Install Valgrind
+#       if: matrix.valgrind
+#       working-directory: valgrind
+#       run: |
+#         sudo make install
+#         sudo apt-get update
+#         sudo apt-get install ninja-build libc6-dbg
+
+#     - name: Prepare env
+#       run: |
+#         python -m pip install -r tests/requirements.txt
+
+#     - name: Configure
+#       run: cmake --preset default -DCMAKE_CXX_STANDARD=17
+
+#     - name: Build
+#       run: cmake --build --preset default
+
+#     - name: Python tests
+#       run: cmake --build --preset default --target pytest
+
+#     - name: C++ tests
+#       run: cmake --build --preset default --target cpptest
+
+#     - name: Visibility test
+#       run: cmake --build --preset default --target test_cross_module_rtti
+
+#     - name: Run Valgrind on Python tests
+#       if: matrix.valgrind
+#       run: cmake --build --preset default --target memcheck
+
+
+#   # Testing on clang using the excellent silkeh clang docker images
+#   clang:
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-latest
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - clang: 5
+#             std: 14
+#           - clang: 11
+#             std: 20
+#           - clang: 14
+#             std: 20
+#           - clang: 16
+#             std: 20
+#             container_suffix: "-bullseye"
+#           - clang: 18
+#             std: 20
+#             cxx_flags: "-Werror -Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls"
+#             container_suffix: "-bookworm"
+
+#     name: "🐍 3 • Clang ${{ matrix.clang }} • C++${{ matrix.std }} • x64${{ matrix.cxx_flags && ' • cxx_flags' || '' }}"
+#     container: "silkeh/clang:${{ matrix.clang }}${{ matrix.container_suffix }}"
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Add wget and python3
+#       run: apt-get update && apt-get install -y python3-dev python3-numpy python3-pytest libeigen3-dev
+
+#     - name: Configure
+#       shell: bash
+#       run: >
+#         cmake -S . -B build
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DCMAKE_CXX_STANDARD=${{ matrix.std }}
+#         -DCMAKE_CXX_FLAGS="${{ matrix.cxx_flags }}"
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Build
+#       run: cmake --build build -j 2
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+#     - name: C++ tests
+#       run: cmake --build build --target cpptest
+
+#     - name: Interface test
+#       run: cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build build --target test_cross_module_rtti
+
+#   # Testing NVCC; forces sources to behave like .cu files
+#   cuda:
+#     runs-on: ubuntu-latest
+#     name: "🐍 3.10 • CUDA 12.2 • Ubuntu 22.04"
+#     container: nvidia/cuda:12.2.0-devel-ubuntu22.04
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     # tzdata will try to ask for the timezone, so set the DEBIAN_FRONTEND
+#     - name: Install 🐍 3
+#       run: apt-get update && DEBIAN_FRONTEND="noninteractive" apt-get install -y cmake git python3-dev python3-pytest python3-numpy
+
+#     - name: Configure
+#       run: cmake -S . -B build -DPYBIND11_CUDA_TESTS=ON -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
+
+#     - name: Build
+#       run: cmake --build build -j2 --verbose
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+
+# # TODO: Internal compiler error - report to NVidia
+# #  # Testing CentOS 8 + PGI compilers
+# #  centos-nvhpc8:
+# #    runs-on: ubuntu-latest
+# #    name: "🐍 3 • CentOS8 / PGI 20.11 • x64"
+# #    container: centos:8
+# #
+# #    steps:
+# #    - uses: actions/checkout@v6
+# #
+# #    - name: Add Python 3 and a few requirements
+# #      run: yum update -y && yum install -y git python3-devel python3-numpy python3-pytest make environment-modules
+# #
+# #    - name: Install CMake with pip
+# #      run: |
+# #        python3 -m pip install --upgrade pip
+# #        python3 -m pip install cmake --prefer-binary
+# #
+# #    - name: Install NVidia HPC SDK
+# #      run: >
+# #        yum -y install
+# #        https://developer.download.nvidia.com/hpc-sdk/20.11/nvhpc-20-11-20.11-1.x86_64.rpm
+# #        https://developer.download.nvidia.com/hpc-sdk/20.11/nvhpc-2020-20.11-1.x86_64.rpm
+# #
+# #    - name: Configure
+# #      shell: bash
+# #      run: |
+# #        source /etc/profile.d/modules.sh
+# #        module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/20.11
+# #        cmake -S . -B build -DDOWNLOAD_CATCH=ON -DCMAKE_CXX_STANDARD=14 -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+# #
+# #    - name: Build
+# #      run: cmake --build build -j 2 --verbose
+# #
+# #    - name: Python tests
+# #      run: cmake --build build --target pytest
+# #
+# #    - name: C++ tests
+# #      run: cmake --build build --target cpptest
+# #
+# #    - name: Interface test
+# #      run: cmake --build build --target test_cmake_build
+
+
+#   # Testing on Ubuntu + NVHPC (previous PGI) compilers, which seems to require more workarounds
+#   ubuntu-nvhpc7:
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-22.04
+#     name: "🐍 3 • NVHPC 23.5 • C++17 • x64"
+#     timeout-minutes: 90
+
+#     env:
+#       # tzdata will try to ask for the timezone, so set the DEBIAN_FRONTEND
+#       DEBIAN_FRONTEND: 'noninteractive'
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Add NVHPC Repo
+#       run: |
+#         echo 'deb [trusted=yes] https://developer.download.nvidia.com/hpc-sdk/ubuntu/amd64 /' | \
+#           sudo tee /etc/apt/sources.list.d/nvhpc.list
+
+#     - name: Install 🐍 3 & NVHPC
+#       run: |
+#         sudo apt-get update -y && \
+#         sudo apt-get install -y cmake environment-modules git python3-dev python3-pip python3-numpy && \
+#         sudo apt-get install -y --no-install-recommends nvhpc-23-5 && \
+#         sudo rm -rf /var/lib/apt/lists/*
+#         python3 -m pip install --upgrade pip
+#         python3 -m pip install --upgrade pytest
+
+#     # On some systems, you many need further workarounds:
+#     # https://github.com/pybind/pybind11/pull/2475
+#     - name: Configure
+#       shell: bash
+#       run: |
+#         source /etc/profile.d/modules.sh
+#         module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/23.5
+#         cmake -S . -B build -DDOWNLOAD_CATCH=ON \
+#                             -DCMAKE_CXX_STANDARD=17 \
+#                             -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)") \
+#                             -DCMAKE_CXX_FLAGS="-Wc,--pending_instantiations=0" \
+#                             -DPYBIND11_TEST_FILTER="test_smart_ptr.cpp"
+
+#     - name: Build
+#       run: cmake --build build -j 2 --verbose
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+#     - name: C++ tests
+#       run: cmake --build build --target cpptest
+
+#     - name: Interface test
+#       run: cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build build --target test_cross_module_rtti
+
+#   # Testing on GCC using the GCC docker images (only recent images supported)
+#   gcc:
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-latest
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - { gcc: 9, std: 20 }
+#           - { gcc: 10, std: 17 }
+#           - { gcc: 10, std: 20 }
+#           - { gcc: 13, std: 20, cxx_flags: "-Wall -Wextra -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls" }
+
+#     name: "🐍 3 • GCC ${{ matrix.gcc }} • C++${{ matrix.std }} • x64${{ matrix.cxx_flags && ' • cxx_flags' || '' }}"
+#     container: "gcc:${{ matrix.gcc }}"
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Add Python 3
+#       run: apt-get update; apt-get install -y python3-dev python3-numpy python3-pytest python3-pip libeigen3-dev
+
+#     - name: Update pip
+#       run: python3 -m pip install --upgrade pip
+
+#     - name: Update CMake
+#       uses: jwlawson/actions-setup-cmake@v2.0
+
+#     - name: Configure
+#       shell: bash
+#       run: >
+#         cmake -S . -B build
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DCMAKE_CXX_STANDARD=${{ matrix.std }}
+#         -DCMAKE_CXX_FLAGS="${{ matrix.cxx_flags }}"
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Build
+#       run: cmake --build build -j 2
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+#     - name: C++ tests
+#       run: cmake --build build --target cpptest
+
+#     - name: Interface test
+#       run: cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build build --target test_cross_module_rtti
+
+#     - name: Configure - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       if: matrix.gcc == '12'
+#       shell: bash
+#       run: >
+#         cmake -S . -B build_partial
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DCMAKE_CXX_STANDARD=${{ matrix.std }}
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+#         "-DPYBIND11_TEST_OVERRIDE=test_call_policies.cpp;test_gil_scoped.cpp;test_thread.cpp"
+
+#     - name: Build - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       if: matrix.gcc == '12'
+#       run: cmake --build build_partial -j 2
+
+#     - name: Python tests - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       if: matrix.gcc == '12'
+#       run: cmake --build build_partial --target pytest
+
+#   # Testing on ICC using the oneAPI apt repo
+#   icc:
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-22.04
+#     timeout-minutes: 90
+
+#     name: "🐍 3 • ICC latest • x64"
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Add apt repo
+#       run: |
+#         sudo apt-get update
+#         sudo apt-get install -y wget build-essential pkg-config cmake ca-certificates gnupg
+#         wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
+#         sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
+#         echo "deb https://apt.repos.intel.com/oneapi all main" | sudo tee /etc/apt/sources.list.d/oneAPI.list
+
+#     - name: Add ICC & Python 3
+#       run: sudo apt-get update; sudo apt-get install -y intel-oneapi-compiler-dpcpp-cpp-and-cpp-classic cmake python3-dev python3-numpy python3-pytest python3-pip
+
+#     - name: Update pip
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         python3 -m pip install --upgrade pip
+
+#     - name: Install dependencies
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         python3 -m pip install -r tests/requirements.txt
+
+#     - name: Configure C++11
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake -S . -B build-11     \
+#         -DPYBIND11_WERROR=ON    \
+#         -DDOWNLOAD_CATCH=ON     \
+#         -DDOWNLOAD_EIGEN=OFF    \
+#         -DCMAKE_CXX_STANDARD=11             \
+#         -DCMAKE_CXX_COMPILER=$(which icpc)  \
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Build C++11
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-11 -j 2 -v
+
+#     - name: Python tests C++11
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         sudo service apport stop
+#         cmake --build build-11 --target check
+
+#     - name: C++ tests C++11
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-11 --target cpptest
+
+#     - name: Interface test C++11
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-11 --target test_cmake_build
+
+#     - name: Visibility test
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-11 --target test_cross_module_rtti
+
+#     - name: Configure C++17
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake -S . -B build-17     \
+#         -DPYBIND11_WERROR=ON    \
+#         -DDOWNLOAD_CATCH=ON     \
+#         -DDOWNLOAD_EIGEN=OFF    \
+#         -DCMAKE_CXX_STANDARD=17             \
+#         -DCMAKE_CXX_COMPILER=$(which icpc)  \
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Build C++17
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-17 -j 2 -v
+
+#     - name: Python tests C++17
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         sudo service apport stop
+#         cmake --build build-17 --target check
+
+#     - name: C++ tests C++17
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-17 --target cpptest
+
+#     - name: Interface test C++17
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-17 --target test_cmake_build
+
+#     - name: Visibility test
+#       run: |
+#         set +e; source /opt/intel/oneapi/setvars.sh; set -e
+#         cmake --build build-17 --target test_cross_module_rtti
+
+#   # Testing on CentOS (manylinux uses a centos base).
+#   centos:
+#     if: github.event.pull_request.draft == false
+#     runs-on: ubuntu-latest
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         container:
+#           - "almalinux:8"
+#           - "almalinux:9"
+
+#     name: "🐍 3 • ${{ matrix.container }} • x64"
+#     container: "${{ matrix.container }}"
+#     timeout-minutes: 90
+
+#     steps:
+#     - name: Latest actions/checkout
+#       uses: actions/checkout@v6
+
+#     - name: Add Python 3.8
+#       if: matrix.container == 'almalinux:8'
+#       run: dnf update -y && dnf install -y python38-devel gcc-c++ make git
+
+#     - name: Add Python 3 (default)
+#       if: matrix.container != 'almalinux:8'
+#       run: dnf update -y && dnf install -y python3-devel gcc-c++ make git
+
+#     - name: Update pip
+#       run: python3 -m pip install --upgrade pip
+
+#     - name: Install dependencies
+#       run: |
+#         python3 -m pip install cmake -r tests/requirements.txt
+
+#     - name: Ensure NumPy 2 is used (required Python >= 3.9)
+#       if: matrix.container == 'almalinux:9'
+#       run: |
+#         python3 -m pip install 'numpy>=2.0.0b1' 'scipy>=1.13.0rc1'
+
+#     - name: Configure
+#       shell: bash
+#       run: >
+#         cmake -S . -B build
+#         -DCMAKE_BUILD_TYPE=MinSizeRel
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         -DCMAKE_CXX_STANDARD=11
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Build
+#       run: cmake --build build -j 2
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+#     - name: C++ tests
+#       run: cmake --build build --target cpptest
+
+#     - name: Interface test
+#       run: cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build build --target test_cross_module_rtti
+
+
+#   # This tests an "install" with the CMake tools
+#   install-classic:
+#     if: github.event.pull_request.draft == false
+#     name: "🐍 3.9 • Debian • x86 •  Install"
+#     runs-on: ubuntu-latest
+#     container: i386/debian:bullseye
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v1  # v1 is required to run inside docker
+
+#     - name: Install requirements
+#       run: |
+#         apt-get update
+#         apt-get install -y git make cmake g++ libeigen3-dev python3-dev python3-pip
+#         pip3 install "pytest==6.*"
+
+#     - name: Configure for install
+#       run: >
+#         cmake .
+#         -DPYBIND11_INSTALL=1 -DPYBIND11_TEST=0
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
+#     - name: Make and install
+#       run: make install
+
+#     - name: Copy tests to new directory
+#       run: cp -a tests /pybind11-tests
+
+#     - name: Make a new test directory
+#       run: mkdir /build-tests
+
+#     - name: Configure tests
+#       run: >
+#         cmake ../pybind11-tests
+#         -DDOWNLOAD_CATCH=ON
+#         -DPYBIND11_WERROR=ON
+#         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+#       working-directory: /build-tests
+
+#     - name: Python tests
+#       run: make pytest -j 2
+#       working-directory: /build-tests
+
+
+#   # This verifies that the documentation is not horribly broken, and does a
+#   # basic validation check on the SDist.
+#   doxygen:
+#     if: github.event.pull_request.draft == false
+#     name: "Documentation build test"
+#     runs-on: ubuntu-latest
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - uses: actions/setup-python@v6
+#       with:
+#         python-version: "3.x"
+
+#     - name: Install Doxygen
+#       run: sudo apt-get install -y doxygen librsvg2-bin # Changed to rsvg-convert in 20.04
+
+#     - name: Build docs
+#       run: pipx run nox -s docs
+
+#     - name: Make SDist
+#       run: pipx run nox -s build -- --sdist
+
+#     - run: git status --ignored
+
+#     - name: Check local include dir
+#       run: >
+#         ls pybind11;
+#         python3 -c "import pybind11, pathlib; assert (a := pybind11.get_include()) == (b := str(pathlib.Path('include').resolve())), f'{a} != {b}'"
+
+#     - name: Compare Dists (headers only)
+#       working-directory: include
+#       run: |
+#         python3 -m pip install --user -U ../dist/*.tar.gz
+#         installed=$(python3 -c "import pybind11; print(pybind11.get_include() + '/pybind11')")
+#         diff -rq $installed ./pybind11
+
+#   win32:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - python: '3.8'
+#             args: -DCMAKE_CXX_STANDARD=17
+#           - python: '3.10'
+#             args: -DCMAKE_CXX_STANDARD=20
+#           - python: '3.13'
+
+
+#     name: "🐍 ${{ matrix.python }} • MSVC 2022 • x86 ${{ matrix.args }}"
+#     runs-on: windows-2022
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Setup Python ${{ matrix.python }}
+#       uses: actions/setup-python@v6
+#       with:
+#         python-version: ${{ matrix.python }}
+#         architecture: x86
+#         # Python 3.13.4 broken on Windows
+#         check-latest: >-
+#           ${{ matrix.python == '3.13' && runner.os == 'Windows' }}
+
+#     - name: Update CMake
+#       uses: jwlawson/actions-setup-cmake@v2.0
+
+#     - name: Prepare MSVC
+#       uses: ilammy/msvc-dev-cmd@v1.13.0
+#       with:
+#         arch: x86
+
+#     - name: Prepare env
+#       run: |
+#         python -m pip install -r tests/requirements.txt
+
+#     - name: Configure ${{ matrix.args }}
+#       run: >
+#         cmake -S . -B build
+#         -G "Visual Studio 17 2022" -A Win32
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         ${{ matrix.args }}
+#     - name: Build C++11
+#       run: cmake --build build -j 2
+
+#     - name: Python tests
+#       run: cmake --build build -t pytest
+
+#   win32-debug:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - python: 3.9
+#             args: -DCMAKE_CXX_STANDARD=20
+#           - python: 3.8
+#             args: -DCMAKE_CXX_STANDARD=17
+
+#     name: "🐍 ${{ matrix.python }} • MSVC 2022 (Debug) • x86 ${{ matrix.args }}"
+#     runs-on: windows-2022
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Setup Python ${{ matrix.python }}
+#       uses: actions/setup-python@v6
+#       with:
+#         python-version: ${{ matrix.python }}
+#         architecture: x86
+
+#     - name: Update CMake
+#       uses: jwlawson/actions-setup-cmake@v2.0
+
+#     - name: Prepare MSVC
+#       uses: ilammy/msvc-dev-cmd@v1.13.0
+#       with:
+#         arch: x86
+
+#     - name: Prepare env
+#       run: |
+#         python -m pip install -r tests/requirements.txt
+
+#     - name: Configure ${{ matrix.args }}
+#       run: >
+#         cmake -S . -B build
+#         -G "Visual Studio 17 2022" -A Win32
+#         -DCMAKE_BUILD_TYPE=Debug
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         ${{ matrix.args }}
+#     - name: Build C++11
+#       run: cmake --build build --config Debug -j 2
+
+#     - name: Python tests
+#       run: cmake --build build --config Debug -t pytest
+
+
+#   windows-2022:
+#     if: github.event.pull_request.draft == false
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         python:
+#         - 3.9
+
+#     name: "🐍 ${{ matrix.python }} • MSVC 2022 C++20 • x64"
+#     runs-on: windows-2022
+#     timeout-minutes: 90
+
+#     steps:
+#     - uses: actions/checkout@v6
+
+#     - name: Setup Python ${{ matrix.python }}
+#       uses: actions/setup-python@v6
+#       with:
+#         python-version: ${{ matrix.python }}
+
+#     - name: Prepare env
+#       run: python3 -m pip install -r tests/requirements.txt
+
+#     - name: Update CMake
+#       uses: jwlawson/actions-setup-cmake@v2.0
+
+#     - name: Configure C++20
+#       run: >
+#         cmake -S . -B build
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         -DCMAKE_CXX_STANDARD=20
+
+#     - name: Build C++20
+#       run: cmake --build build -j 2
+
+#     - name: Python tests
+#       run: cmake --build build --target pytest
+
+#     - name: C++20 tests
+#       run: cmake --build build --target cpptest -j 2
+
+#     - name: Interface test C++20
+#       run: cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: cmake --build build --target test_cross_module_rtti
+
+#     - name: Configure C++20 - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       run: >
+#         cmake -S . -B build_partial
+#         -DPYBIND11_WERROR=ON
+#         -DDOWNLOAD_CATCH=ON
+#         -DDOWNLOAD_EIGEN=ON
+#         -DCMAKE_CXX_STANDARD=20
+#         "-DPYBIND11_TEST_OVERRIDE=test_call_policies.cpp;test_gil_scoped.cpp;test_thread.cpp"
+
+#     - name: Build C++20 - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       run: cmake --build build_partial -j 2
+
+#     - name: Python tests - Exercise cmake -DPYBIND11_TEST_OVERRIDE
+#       run: cmake --build build_partial --target pytest
+
+#   mingw:
+#     if: github.event.pull_request.draft == false
+#     name: "🐍 3 • windows-latest • ${{ matrix.sys }}"
+#     runs-on: windows-latest
+#     timeout-minutes: 90
+#     defaults:
+#       run:
+#         shell: msys2 {0}
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         include:
+#           - sys: mingw32
+#             env: i686
+#             extra_install: ""
+#           - sys: mingw64
+#             env: x86_64
+#             extra_install: |
+#               mingw-w64-x86_64-python-numpy
+#               mingw-w64-x86_64-python-scipy
+#               mingw-w64-x86_64-eigen3
+#     steps:
+#     - uses: msys2/setup-msys2@v2
+#       with:
+#         msystem: ${{matrix.sys}}
+#         install: >-
+#           git
+#           mingw-w64-${{matrix.env}}-gcc
+#           mingw-w64-${{matrix.env}}-python-pip
+#           mingw-w64-${{matrix.env}}-cmake
+#           mingw-w64-${{matrix.env}}-make
+#           mingw-w64-${{matrix.env}}-python-pytest
+#           mingw-w64-${{matrix.env}}-boost
+#           mingw-w64-${{matrix.env}}-catch
+#           ${{ matrix.extra_install }}
+
+#     - uses: actions/checkout@v6
+
+#     - name: Configure C++11
+#       # LTO leads to many undefined reference like
+#       # `pybind11::detail::function_call::function_call(pybind11::detail::function_call&&)
+#       run: >-
+#         cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=11 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
+#         -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
+#         -S . -B build
+
+#     - name: Build C++11
+#       run: cmake --build build -j 2
+
+#     - name: Python tests C++11
+#       run: cmake --build build --target pytest -j 2
+
+#     - name: C++11 tests
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target cpptest -j 2
+
+#     - name: Interface test C++11
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target test_cmake_build
+
+#     - name: Visibility test
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build --target test_cross_module_rtti
+
+#     - name: Clean directory
+#       run: git clean -fdx
+
+#     - name: Configure C++14
+#       run: >-
+#         cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=14 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
+#         -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
+#         -S . -B build2
+
+#     - name: Build C++14
+#       run: cmake --build build2 -j 2
+
+#     - name: Python tests C++14
+#       run: cmake --build build2 --target pytest -j 2
+
+#     - name: C++14 tests
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target cpptest -j 2
+
+#     - name: Interface test C++14
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target test_cmake_build
+
+#     - name: Visibility test
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build2 --target test_cross_module_rtti
+
+#     - name: Clean directory
+#       run: git clean -fdx
+
+#     - name: Configure C++17
+#       run: >-
+#         cmake -G "MinGW Makefiles" -DCMAKE_CXX_STANDARD=17 -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
+#         -DPYTHON_EXECUTABLE=$(python -c "import sys; print(sys.executable)")
+#         -S . -B build3
+
+#     - name: Build C++17
+#       run: cmake --build build3 -j 2
+
+#     - name: Python tests C++17
+#       run: cmake --build build3 --target pytest -j 2
+
+#     - name: C++17 tests
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target cpptest -j 2
+
+#     - name: Interface test C++17
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target test_cmake_build
+
+#     - name: Visibility test
+#       run: PYTHONHOME=/${{matrix.sys}} PYTHONPATH=/${{matrix.sys}} cmake --build build3 --target test_cross_module_rtti
+
+#   windows_clang:
+#     if: github.event.pull_request.draft == false
+
+#     strategy:
+#       matrix:
+#         os: [windows-latest]
+#         python: ['3.10']
 
-    runs-on: "${{ matrix.os }}"
-    timeout-minutes: 90
+#     runs-on: "${{ matrix.os }}"
+#     timeout-minutes: 90
 
-    name: "🐍 ${{ matrix.python }} • ${{ matrix.os }} • clang-latest"
+#     name: "🐍 ${{ matrix.python }} • ${{ matrix.os }} • clang-latest"
 
-    steps:
-      - name: Show env
-        run: env
+#     steps:
+#       - name: Show env
+#         run: env
 
-      - name: Checkout
-        uses: actions/checkout@v6
+#       - name: Checkout
+#         uses: actions/checkout@v6
 
-      - name: Set up Clang
-        uses: egor-tensin/setup-clang@v1
+#       - name: Set up Clang
+#         uses: egor-tensin/setup-clang@v1
 
-      - name: Setup Python ${{ matrix.python }}
-        uses: actions/setup-python@v6
-        with:
-          python-version: ${{ matrix.python }}
+#       - name: Setup Python ${{ matrix.python }}
+#         uses: actions/setup-python@v6
+#         with:
+#           python-version: ${{ matrix.python }}
 
-      - name: Update CMake
-        uses: jwlawson/actions-setup-cmake@v2.0
+#       - name: Update CMake
+#         uses: jwlawson/actions-setup-cmake@v2.0
 
-      - name: Install ninja-build tool
-        uses: seanmiddleditch/gha-setup-ninja@v6
+#       - name: Install ninja-build tool
+#         uses: seanmiddleditch/gha-setup-ninja@v6
 
-      - name: Run pip installs
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install -r tests/requirements.txt
+#       - name: Run pip installs
+#         run: |
+#           python -m pip install --upgrade pip
+#           python -m pip install -r tests/requirements.txt
 
-      - name: Show Clang++ version
-        run: clang++ --version
+#       - name: Show Clang++ version
+#         run: clang++ --version
 
-      - name: Show CMake version
-        run: cmake --version
+#       - name: Show CMake version
+#         run: cmake --version
 
-      # TODO: WERROR=ON
-      - name: Configure Clang
-        run: >
-          cmake -G Ninja -S . -B .
-          -DPYBIND11_WERROR=OFF
-          -DPYBIND11_SIMPLE_GIL_MANAGEMENT=OFF
-          -DDOWNLOAD_CATCH=ON
-          -DDOWNLOAD_EIGEN=ON
-          -DCMAKE_CXX_COMPILER=clang++
-          -DCMAKE_CXX_STANDARD=17
+#       # TODO: WERROR=ON
+#       - name: Configure Clang
+#         run: >
+#           cmake -G Ninja -S . -B .
+#           -DPYBIND11_WERROR=OFF
+#           -DPYBIND11_SIMPLE_GIL_MANAGEMENT=OFF
+#           -DDOWNLOAD_CATCH=ON
+#           -DDOWNLOAD_EIGEN=ON
+#           -DCMAKE_CXX_COMPILER=clang++
+#           -DCMAKE_CXX_STANDARD=17
 
-      - name: Build
-        run: cmake --build . -j 2
+#       - name: Build
+#         run: cmake --build . -j 2
 
-      - name: Python tests
-        run: cmake --build . --target pytest -j 2
+#       - name: Python tests
+#         run: cmake --build . --target pytest -j 2
 
-      - name: C++ tests
-        run: cmake --build . --target cpptest -j 2
+#       - name: C++ tests
+#         run: cmake --build . --target cpptest -j 2
 
-      - name: Interface test
-        run: cmake --build . --target test_cmake_build -j 2
+#       - name: Interface test
+#         run: cmake --build . --target test_cmake_build -j 2
 
-      - name: Visibility test
-        run: cmake --build . --target test_cross_module_rtti -j 2
+#       - name: Visibility test
+#         run: cmake --build . --target test_cross_module_rtti -j 2
 
-      - name: Clean directory
-        run: git clean -fdx
+#       - name: Clean directory
+#         run: git clean -fdx
 
   windows_arm:
     if: github.event.pull_request.draft == false