diff --git a/.github/workflows/Dockerfile b/.github/workflows/Dockerfile
deleted file mode 100644
index 4b93054b8d..0000000000
--- a/.github/workflows/Dockerfile
+++ /dev/null
@@ -1,8 +0,0 @@
-# Create a virtual environment with all tools installed
-# ref: https://hub.docker.com/_/alpine
-FROM alpine:edge
-# Install system build dependencies
-RUN apk add --no-cache git clang-extra-tools
-RUN apk add --no-cache python3 py3-pip \
-&& rm -f /usr/lib/python3.*/EXTERNALLY-MANAGED \
-&& python3 -m pip install black
diff --git a/.github/workflows/aarch64_toolchain.yml b/.github/workflows/aarch64_toolchain.yml
deleted file mode 100644
index 38e4ad4a1e..0000000000
--- a/.github/workflows/aarch64_toolchain.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-# ref: https://toolchains.bootlin.com/
-name: aarch64 Toolchain
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  aarch64:
-    strategy:
-      matrix:
-        targets: [aarch64, aarch64be]
-      fail-fast: false
-    name: Linux • Toolchain ${{ matrix.targets }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: Build env stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_env
-    - name: Build devel stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_devel
-    - name: Build build stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_build
-    - name: Build Test stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_test
diff --git a/.github/workflows/amd64_cmake_glop_cpp.yml b/.github/workflows/amd64_cmake_glop_cpp.yml
deleted file mode 100644
index f2048bdc7b..0000000000
--- a/.github/workflows/amd64_cmake_glop_cpp.yml
+++ /dev/null
@@ -1,92 +0,0 @@
-name: amd64 CMake Glop C++
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  docker:
-    name: Docker • CMake • Glop
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Build env image
-        run: make --directory=cmake glop_env
-      - name: Build devel image
-        run: make --directory=cmake glop_devel
-      - name: Build project
-        run: make --directory=cmake glop_build
-      - name: Test project
-        run: make --directory=cmake glop_test
-      - name: Build Install env image
-        run: make --directory=cmake glop_install_env
-      - name: Build Install devel image
-        run: make --directory=cmake glop_install_devel
-      - name: Build Install
-        run: make --directory=cmake glop_install_build
-      - name: Test Install
-        run: make --directory=cmake glop_install_test
-
-  # ref: https://github.com/actions/runner-images
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {
-            runner: "ubuntu-latest",
-            generator: "Unix Makefiles",
-            config: Release,
-            build_target: all,
-            test_target: test,
-            install_target: install
-          },
-          {
-            runner: "macos-13", # last macos intel based runner
-            generator: "Xcode",
-            config: Release,
-            build_target: ALL_BUILD,
-            test_target: RUN_TESTS,
-            install_target: install
-          },
-          {
-            runner: "macos-latest", # macos arm64 based runner
-            generator: "Xcode",
-            config: Release,
-            build_target: ALL_BUILD,
-            test_target: RUN_TESTS,
-            install_target: install
-          },
-          {
-            runner: "windows-latest",
-            generator: "Visual Studio 17 2022",
-            config: Release,
-            build_target: ALL_BUILD,
-            test_target: RUN_TESTS,
-            install_target: INSTALL
-          },
-        ]
-      fail-fast: false
-    name: ${{ matrix.cmake.runner }} • CMake • Glop
-    runs-on: ${{ matrix.cmake.runner }}
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_DEPS=ON
-          -DBUILD_CXX=OFF -DBUILD_GLOP=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_docker_bazel.yml b/.github/workflows/amd64_docker_bazel.yml
deleted file mode 100644
index f28c0d1b32..0000000000
--- a/.github/workflows/amd64_docker_bazel.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-# ref: https://github.com/docker-library/official-images
-name: amd64 Docker Bazel
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  bazel:
-    strategy:
-      matrix:
-        platform: [amd64] # arm64 riscv64
-        distro: [
-          almalinux,
-          # alpine,
-          archlinux,
-          debian,
-          fedora,
-          opensuse,
-          rockylinux,
-          ubuntu
-        ]
-      fail-fast: false
-    name: ${{ matrix.platform }} • ${{ matrix.distro }} • Bazel
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check docker
-        run: |
-          docker info
-          docker buildx ls
-      - name: Build env image
-        run: make --directory=bazel ${{ matrix.platform }}_${{ matrix.distro }}_env
-      - name: Build devel image
-        run: make --directory=bazel ${{ matrix.platform }}_${{ matrix.distro }}_devel
-      - name: Build project
-        run: make --directory=bazel ${{ matrix.platform }}_${{ matrix.distro }}_build
-      - name: Test project
-        run: make --directory=bazel ${{ matrix.platform }}_${{ matrix.distro }}_test
diff --git a/.github/workflows/amd64_docker_cmake.yml b/.github/workflows/amd64_docker_cmake.yml
deleted file mode 100644
index 8c3f2e55c2..0000000000
--- a/.github/workflows/amd64_docker_cmake.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-# ref: https://github.com/docker-library/official-images
-name: amd64 Docker CMake
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  cmake:
-    strategy:
-      matrix:
-        distro: [almalinux, alpine, archlinux, debian, fedora, opensuse, rockylinux, ubuntu]
-        lang: [cpp, python, dotnet, java]
-      fail-fast: false
-    name: ${{ matrix.distro }} • CMake • ${{ matrix.lang }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Build base image
-        run: make --directory=cmake ${{ matrix.distro }}_base
-      - name: Build env image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_env
-      - name: Build devel image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_devel
-      - name: Build project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_build
-      - name: Test project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_test
-
-      - name: Build install env image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_env
-      - name: Build install devel image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_devel
-      - name: Build install project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_build
-      - name: Test install project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_test
diff --git a/.github/workflows/amd64_freebsd_cmake.yml b/.github/workflows/amd64_freebsd_cmake.yml
deleted file mode 100644
index f70f58c2ab..0000000000
--- a/.github/workflows/amd64_freebsd_cmake.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-name: amd64 FreeBSD CMake
-
-on: [push, pull_request, workflow_dispatch]
-
-# Only macos-12 runner provide virtualisation with vagrant/virtualbox installed.
-# ref: https://github.com/actions/runner-images/tree/main/images/macos
-# ref: https://app.vagrantup.com/generic/boxes/freebsd13
-jobs:
-  vagrant:
-    strategy:
-      fail-fast: false
-      matrix:
-        distro: [freebsd]
-        lang: [cpp, python]
-        allow_failure: [false]
-        include:
-        - distro: freebsd
-          lang: dotnet
-          allow_failure: true
-        - distro: freebsd
-          lang: java
-          allow_failure: true
-    name: FreeBSD • CMake • ${{ matrix.lang }}
-    runs-on: macos-12
-    steps:
-      - uses: actions/checkout@v4
-      - name: vagrant version
-        run: Vagrant --version
-      - name: VirtualBox version
-        run: virtualbox -h
-      - name: Build
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}
diff --git a/.github/workflows/amd64_linux_bazel.yml b/.github/workflows/amd64_linux_bazel.yml
deleted file mode 100644
index b9713a8c7d..0000000000
--- a/.github/workflows/amd64_linux_bazel.yml
+++ /dev/null
@@ -1,61 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux Bazel
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        python: [
-          {version: '3.10'},
-          {version: '3.11'},
-          {version: '3.12'},
-          {version: '3.13'},
-        ]
-      fail-fast: false
-    name: Linux • Bazel • Python-${{ matrix.python.version }}
-    runs-on: ubuntu-latest
-    env:
-      CC:  gcc-12
-      CXX: g++-12
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check Java
-        run: java -version
-      - name: Check mvn
-        run: mvn --version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Check Python
-        run: python --version
-      - name: Install Bazel
-        run: |
-          curl -fsSL https://bazel.build/bazel-release.pub.gpg | gpg --dearmor > bazel.gpg
-          sudo mv bazel.gpg /etc/apt/trusted.gpg.d/
-          echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list
-          sudo apt-get update
-          sudo apt-get install bazel
-      - name: Check Bazel
-        run: bazel version
-      - name: Change Python in WORKSPACE
-        run: >
-          sed
-          -i
-          's/\(DEFAULT_PYTHON =\) "3.[0-9]\+"/\1 "${{ matrix.python.version }}"/g'
-          WORKSPACE
-      - name: Build
-        run: >
-          bazel build
-          -c opt
-          --subcommands=pretty_print
-          //ortools/... //examples/...
-      - name: Test
-        run: >
-          bazel test
-          -c opt
-          --test_output=errors
-          //ortools/... //examples/...
diff --git a/.github/workflows/amd64_linux_cmake_coinor_off.yml b/.github/workflows/amd64_linux_cmake_coinor_off.yml
deleted file mode 100644
index 28879a37e9..0000000000
--- a/.github/workflows/amd64_linux_cmake_coinor_off.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake CoinOR OFF
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {language: 'C++', args: '-DBUILD_CXX=ON'},
-          {language: '.Net', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_DOTNET=ON'},
-          {language: 'Java', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_JAVA=ON'},
-          {language: 'Python', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_PYTHON=ON'},
-        ]
-      fail-fast: false
-    name: Linux • CMake • ${{ matrix.cmake.language }} • CoinOR OFF
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-      # Install SWIG
-    - name: Swig install
-      run: sudo apt install -y swig
-    - name: Check swig
-      run: swig -version
-      # Install .NET SDKs
-    - name: Setup .NET 6.0
-      uses: actions/setup-dotnet@v4
-      with:
-        dotnet-version: 6.0.x
-    - name: Check dotnet
-      run: dotnet --info
-      # Install Java
-    - name: Check java
-      run: java -version
-      # Install Python
-    - name: Install python3 venv
-      run: sudo apt-get install python3-venv
-    - name: Update Path
-      run: echo "$HOME/.local/bin" >> $GITHUB_PATH
-      # CMake
-    - name: Check cmake
-      run: cmake --version
-    - name: Configure
-      run: >
-        cmake -S. -Bbuild
-        -DCMAKE_BUILD_TYPE=Release
-        -DBUILD_DEPS=ON
-        -DUSE_COINOR=OFF
-        ${{ matrix.cmake.args }}
-    - name: Build
-      run: >
-        cmake --build build
-        --config Release
-        --target all
-        -v -j2
-    - name: Test
-      run: >
-        CTEST_OUTPUT_ON_FAILURE=1
-        cmake --build build
-        --config Release
-        --target test
-        -v
-    - name: Install
-      run: >
-        cmake --build build
-        --config Release
-        --target install
-        -v
-        -- DESTDIR=install
diff --git a/.github/workflows/amd64_linux_cmake_cpp.yml b/.github/workflows/amd64_linux_cmake_cpp.yml
deleted file mode 100644
index c54acef4ef..0000000000
--- a/.github/workflows/amd64_linux_cmake_cpp.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake C++
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-       matrix:
-         cmake: [
-           {generator: "Unix Makefiles", config: "Release"},
-           {generator: "Ninja", config: "Release"},
-           {generator: "Ninja Multi-Config", config: "Release"},
-         ]
-       fail-fast: false
-    name: Linux • ${{ matrix.cmake.generator }} • C++
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Ninja
-        run: |
-          sudo apt-get update
-          sudo apt-get install ninja-build
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE="$BUILD_TYPE"
-          -DBUILD_DEPS=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target install
-          -v
diff --git a/.github/workflows/amd64_linux_cmake_dotnet.yml b/.github/workflows/amd64_linux_cmake_dotnet.yml
deleted file mode 100644
index 2dff4dcb9d..0000000000
--- a/.github/workflows/amd64_linux_cmake_dotnet.yml
+++ /dev/null
@@ -1,51 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake .Net
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    name: Linux • CMake • .Net
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          sudo apt install -y swig
-          swig -version
-      - name: Setup .NET 6.0
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: 6.0.x
-      - name: Check dotnet
-        run: dotnet --info
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -DCMAKE_BUILD_TYPE=Release
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_DOTNET=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config Release
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config Release
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config Release
-          --target install
-          -v
-          -- DESTDIR=install
diff --git a/.github/workflows/amd64_linux_cmake_glpk_on.yml b/.github/workflows/amd64_linux_cmake_glpk_on.yml
deleted file mode 100644
index ba6acab4fa..0000000000
--- a/.github/workflows/amd64_linux_cmake_glpk_on.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake GLPK ON
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    name: Linux • CMake • GLPK ON
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -DCMAKE_BUILD_TYPE=Release
-          -DBUILD_DEPS=ON
-          -DUSE_SCIP=OFF -DUSE_COINOR=OFF
-          -DUSE_GLPK=ON
-      - name: Build
-        run: >
-          cmake --build build
-          --config Release
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config Release
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config Release
-          --target install
-          -v
-          -- DESTDIR=install
diff --git a/.github/workflows/amd64_linux_cmake_java.yml b/.github/workflows/amd64_linux_cmake_java.yml
deleted file mode 100644
index 27ef493638..0000000000
--- a/.github/workflows/amd64_linux_cmake_java.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake Java
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    name: Linux • CMake • Java
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          sudo apt install -y swig
-          swig -version
-      - name: Check java
-        run: java -version
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -DCMAKE_BUILD_TYPE=Release
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_JAVA=ON -DSKIP_GPG=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config Release
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config Release
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config Release
-          --target install
-          -v
diff --git a/.github/workflows/amd64_linux_cmake_no_lp_parser.yml b/.github/workflows/amd64_linux_cmake_no_lp_parser.yml
deleted file mode 100644
index 9da054149e..0000000000
--- a/.github/workflows/amd64_linux_cmake_no_lp_parser.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake C++ LP_PARSER OFF
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    name: Linux • CMake • LP_PARSER OFF
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -DCMAKE_BUILD_TYPE=Release
-          -DBUILD_DEPS=ON
-          -DBUILD_LP_PARSER=OFF
-      - name: Build
-        run: >
-          cmake --build build
-          --config Release
-          --target all
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config Release
-          --target test
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config Release
-          --target install
-          -v
-          -- DESTDIR=install
diff --git a/.github/workflows/amd64_linux_cmake_python.yml b/.github/workflows/amd64_linux_cmake_python.yml
deleted file mode 100644
index 20c6d90fea..0000000000
--- a/.github/workflows/amd64_linux_cmake_python.yml
+++ /dev/null
@@ -1,70 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake Python
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Ninja", config: Release, build_target: all, test_target: test, install_target: install},
-          {generator: "Ninja Multi-Config", config: Release, build_target: all, test_target: test, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-        python: [
-          {version: "3.9"},
-          {version: "3.10"},
-          {version: "3.11"},
-          {version: "3.12"},
-          {version: "3.13"},
-        ]
-      fail-fast: false
-    name: Linux • ${{ matrix.cmake.generator }} • Python-${{ matrix.python.version }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Install Ninja
-        run: |
-          sudo apt update
-          sudo apt install -y ninja-build
-      - name: Swig install
-        run: |
-          sudo apt install -y swig
-          swig -version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Update Path
-        run: echo "$HOME/.local/bin" >> $GITHUB_PATH
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_PYTHON=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_linux_cmake_scip_off.yml b/.github/workflows/amd64_linux_cmake_scip_off.yml
deleted file mode 100644
index 6249d73aa8..0000000000
--- a/.github/workflows/amd64_linux_cmake_scip_off.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Linux CMake SCIP OFF
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {language: 'C++', args: '-DBUILD_CXX=ON'},
-          {language: '.Net', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_DOTNET=ON'},
-          {language: 'Java', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_JAVA=ON'},
-          {language: 'Python', args: '-DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF -DBUILD_PYTHON=ON'},
-        ]
-      fail-fast: false
-    name: Linux • CMake • ${{ matrix.cmake.language }} • SCIP OFF
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-      # Install SWIG
-    - name: Swig install
-      run: sudo apt install -y swig
-    - name: Check swig
-      run: swig -version
-      # Install .NET SDKs
-    - name: Setup .NET 6.0
-      uses: actions/setup-dotnet@v4
-      with:
-        dotnet-version: 6.0.x
-    - name: Check dotnet
-      run: dotnet --info
-      # Install Java
-    - name: Check java
-      run: java -version
-      # Install Python
-    - name: Install python3 venv
-      run: sudo apt-get install python3-venv
-    - name: Update Path
-      run: echo "$HOME/.local/bin" >> $GITHUB_PATH
-      # CMake
-    - name: Check cmake
-      run: cmake --version
-    - name: Configure
-      run: >
-        cmake -S. -Bbuild
-        -DCMAKE_BUILD_TYPE=Release
-        -DBUILD_DEPS=ON
-        -DUSE_SCIP=OFF
-        ${{ matrix.cmake.args }}
-    - name: Build
-      run: >
-        cmake --build build
-        --config Release
-        --target all
-        -v -j2
-    - name: Test
-      run: >
-        CTEST_OUTPUT_ON_FAILURE=1
-        cmake --build build
-        --config Release
-        --target test
-        -v
-    - name: Install
-      run: >
-        cmake --build build
-        --config Release
-        --target install
-        -v
-        -- DESTDIR=install
diff --git a/.github/workflows/amd64_linux_cmake_system_deps.yml b/.github/workflows/amd64_linux_cmake_system_deps.yml
deleted file mode 100644
index c818ca9b14..0000000000
--- a/.github/workflows/amd64_linux_cmake_system_deps.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-# Test or-tools using system wide install dependencies.
-name: amd64 Linux CMake System Dependencies
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  native:
-    strategy:
-      matrix:
-        distro: [system_deps]
-        lang: [cpp, python, dotnet, java]
-      fail-fast: false
-    name: Archlinux • CMake • ${{ matrix.lang }} • BUILD_DEPS OFF
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - name: Build base image
-        run: make --directory=cmake ${{ matrix.distro }}_base
-      - name: Build env image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_env
-      - name: Build devel image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_devel
-      - name: Build project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_build
-      - name: Test project
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_test
-
-      - name: Build Install env image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_env
-      - name: Build Install devel image
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_devel
-      - name: Build Install
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_build
-      - name: Test Install
-        run: make --directory=cmake ${{ matrix.distro }}_${{ matrix.lang }}_install_test
-
-# TODO(user): Add macOS + brew job
-# TODO(user): Add Windows + choco/vcpkg job
-
diff --git a/.github/workflows/amd64_macos_bazel.yml b/.github/workflows/amd64_macos_bazel.yml
deleted file mode 100644
index 41e20f9f00..0000000000
--- a/.github/workflows/amd64_macos_bazel.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 MacOS Bazel
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        python: [
-          {version: '3.10'},
-          {version: '3.11'},
-          {version: '3.12'},
-          {version: '3.13'},
-        ]
-      fail-fast: false
-    name: MacOS • Bazel • Python-${{ matrix.python.version }}
-    runs-on: macos-13 # last macos intel based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set Java to OpenJDK 17 (Temurin)
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
-      - name: Check mvn
-        run: mvn --version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Check Python
-        run: python --version
-      - name: Check Bazel
-        run: bazel version
-      - name: Change Python in WORKSPACE
-        run: >
-          sed
-          -i ''
-          -e 's/\(DEFAULT_PYTHON =\) "3.[0-9]*"/\1 "${{ matrix.python.version }}"/g'
-          WORKSPACE
-      - name: Build
-        run: >
-          bazel build
-          -c opt
-          --subcommands=pretty_print
-          //ortools/... //examples/...
-      - name: Test
-        run: >
-          bazel test
-          -c opt
-          --test_output=errors
-          //ortools/... //examples/...
diff --git a/.github/workflows/amd64_macos_cmake_cpp.yml b/.github/workflows/amd64_macos_cmake_cpp.yml
deleted file mode 100644
index f89a97db9d..0000000000
--- a/.github/workflows/amd64_macos_cmake_cpp.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 MacOS CMake C++
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • C++
-    runs-on: macos-13 # last macos intel based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_DEPS=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_macos_cmake_dotnet.yml b/.github/workflows/amd64_macos_cmake_dotnet.yml
deleted file mode 100644
index cbae5400bd..0000000000
--- a/.github/workflows/amd64_macos_cmake_dotnet.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 MacOS CMake .Net
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • .Net
-    runs-on: macos-13 # last macos intel based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Setup .NET 6.0
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: 6.0.x
-      - name: Check dotnet
-        run: dotnet --info
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_DOTNET=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_macos_cmake_java.yml b/.github/workflows/amd64_macos_cmake_java.yml
deleted file mode 100644
index c5c89a15c7..0000000000
--- a/.github/workflows/amd64_macos_cmake_java.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 MacOS CMake Java
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • Java
-    runs-on: macos-13 # last macos intel based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Check java
-        run: java -version
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_JAVA=ON -DSKIP_GPG=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_macos_cmake_python.yml b/.github/workflows/amd64_macos_cmake_python.yml
deleted file mode 100644
index 072d573c71..0000000000
--- a/.github/workflows/amd64_macos_cmake_python.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 MacOS CMake Python
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-        python: [
-          {version: "3.9"},
-          {version: "3.10"},
-          {version: "3.11"},
-          {version: "3.12"},
-          {version: "3.13"},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • Python-${{ matrix.python.version }}
-    runs-on: macos-13 # last macos intel based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Update Path
-        run: |
-          echo "$HOME/Library/Python/${{ matrix.python.version }}/bin" >> $GITHUB_PATH
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_PYTHON=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/amd64_web.yml b/.github/workflows/amd64_web.yml
deleted file mode 100644
index 06150646dc..0000000000
--- a/.github/workflows/amd64_web.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-# ref: https://github.com/docker-library/official-images
-name: amd64 Web
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  emscripten:
-    name: Linux • Emscripten
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: Check docker
-      run: |
-        docker info
-        docker buildx ls
-    - name: Build env image
-      run: make --directory=cmake web_env
-    - name: Build devel project
-      run: make --directory=cmake web_devel
-    - name: Build project
-      run: make --directory=cmake web_build
-    - name: Test project
-      run: make --directory=cmake web_test
diff --git a/.github/workflows/amd64_windows_bazel.yml b/.github/workflows/amd64_windows_bazel.yml
deleted file mode 100644
index f891de2aac..0000000000
--- a/.github/workflows/amd64_windows_bazel.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: amd64 Windows Bazel
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        runner: [windows-2022]
-        python: [
-          {version: '3.10'},
-          {version: '3.11'},
-          {version: '3.12'},
-          {version: '3.13'},
-        ]
-      fail-fast: false # Don't cancel all jobs if one fails.
-    name: ${{ matrix.runner }} • Bazel • Python-${{ matrix.python.version }}
-    runs-on: ${{ matrix.runner }}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
-      - name: Check java
-        run: java -version
-      - name: Check mvn
-        run: mvn --version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Check Python
-        run: python --version
-      - name: Install Bazel
-        run: choco install bazel
-      - name: Check Bazel
-        run: bazel version
-      - name: Build
-        run: >
-          bazel build
-          -c opt
-          --subcommands=pretty_print
-          //ortools/... //examples/...
-      - name: Test
-        run: >
-          bazel test
-          -c opt
-          --test_output=errors
-          //ortools/... //examples/...
diff --git a/.github/workflows/arm64_macos_bazel.yml b/.github/workflows/arm64_macos_bazel.yml
deleted file mode 100644
index 8ac4f1d071..0000000000
--- a/.github/workflows/arm64_macos_bazel.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: arm64 MacOS Bazel
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        python: [
-          {version: '3.10'},
-          {version: '3.11'},
-          {version: '3.12'},
-          {version: '3.13'},
-        ]
-      fail-fast: false
-    name: MacOS • Bazel • Python-${{ matrix.python.version }}
-    runs-on: macos-latest # macos arm64 based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set Java to OpenJDK 17 (Temurin)
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
-      - name: Check mvn
-        run: mvn --version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Check Python
-        run: python --version
-      - name: Check Bazel
-        run: bazel version
-      - name: Change Python in WORKSPACE
-        run: >
-          sed
-          -i ''
-          -e 's/\(DEFAULT_PYTHON =\) "3.[0-9]*"/\1 "${{ matrix.python.version }}"/g'
-          WORKSPACE
-      - name: Build
-        run: >
-          bazel build
-          -c opt
-          --subcommands=pretty_print
-          //ortools/... //examples/...
-      - name: Test
-        run: >
-          bazel test
-          -c opt
-          --test_output=errors
-          //ortools/... //examples/...
diff --git a/.github/workflows/arm64_macos_cmake_cpp.yml b/.github/workflows/arm64_macos_cmake_cpp.yml
deleted file mode 100644
index 92071673df..0000000000
--- a/.github/workflows/arm64_macos_cmake_cpp.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: arm64 MacOS CMake C++
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • C++
-    runs-on: macos-latest # macos M1 based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_DEPS=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/arm64_macos_cmake_dotnet.yml b/.github/workflows/arm64_macos_cmake_dotnet.yml
deleted file mode 100644
index 193d3675b8..0000000000
--- a/.github/workflows/arm64_macos_cmake_dotnet.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: arm64 MacOS CMake .Net
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • .Net
-    runs-on: macos-latest # macos arm64 based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Setup .NET 6.0
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: 6.0.x
-      - name: Check dotnet
-        run: dotnet --info
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_DOTNET=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/arm64_macos_cmake_java.yml b/.github/workflows/arm64_macos_cmake_java.yml
deleted file mode 100644
index 225d7773de..0000000000
--- a/.github/workflows/arm64_macos_cmake_java.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: arm64 MacOS CMake Java
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • Java
-    runs-on: macos-latest # macos arm64 based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Check java
-        run: java -version
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_JAVA=ON -DSKIP_GPG=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/arm64_macos_cmake_python.yml b/.github/workflows/arm64_macos_cmake_python.yml
deleted file mode 100644
index 5de445d2fe..0000000000
--- a/.github/workflows/arm64_macos_cmake_python.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-# ref: https://github.com/actions/runner-images
-name: arm64 MacOS CMake Python
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  native:
-    strategy:
-      matrix:
-        cmake: [
-          {generator: "Xcode", config: Release, build_target: ALL_BUILD, test_target: RUN_TESTS, install_target: install},
-          {generator: "Unix Makefiles", config: Release, build_target: all, test_target: test, install_target: install},
-        ]
-        python: [
-          {version: "3.9"},
-          {version: "3.10"},
-          {version: "3.11"},
-          {version: "3.12"},
-          {version: "3.13"},
-        ]
-      fail-fast: false
-    name: MacOS • ${{ matrix.cmake.generator }} • Python-${{ matrix.python.version }}
-    runs-on: macos-latest # macos arm64 based runner
-    steps:
-      - uses: actions/checkout@v4
-      - name: Swig install
-        run: |
-          brew install swig
-          swig -version
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python.version }}
-      - name: Update Path
-        run: |
-          echo "$HOME/Library/Python/${{ matrix.python.version }}/bin" >> $GITHUB_PATH
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-      - name: Check cmake
-        run: cmake --version
-      - name: Configure
-        run: >
-          cmake -S. -Bbuild
-          -G "${{ matrix.cmake.generator }}"
-          -DCMAKE_BUILD_TYPE=${{ matrix.cmake.config }}
-          -DBUILD_CXX_SAMPLES=OFF -DBUILD_CXX_EXAMPLES=OFF
-          -DBUILD_PYTHON=ON
-          -DCMAKE_INSTALL_PREFIX=install
-      - name: Build
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.build_target }}
-          -v -j2
-      - name: Test
-        run: >
-          CTEST_OUTPUT_ON_FAILURE=1
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.test_target }}
-          -v
-      - name: Install
-        run: >
-          cmake --build build
-          --config ${{ matrix.cmake.config }}
-          --target ${{ matrix.cmake.install_target }}
-          -v
diff --git a/.github/workflows/check_format.yml b/.github/workflows/check_format.yml
deleted file mode 100644
index 16bedf598b..0000000000
--- a/.github/workflows/check_format.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-name: Check Format
-
-on: [push, pull_request, workflow_dispatch]
-
-jobs:
-  # Building using the github runner environement directly.
-  clang-format:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: Fetch origin/main
-      run: git fetch origin main
-    - name: List of changed file(s)
-      run: git diff --name-only FETCH_HEAD
-
-    - name: Build clang-format docker
-      run: cd .github/workflows && docker build --tag=linter .
-    - name: Check clang-format
-      run: docker run --rm --init -v $(pwd):/repo linter:latest clang-format --version
-    - name: clang-format help
-      run: docker run --rm --init -v $(pwd):/repo linter:latest clang-format --help
-
-    - name: Check current commit
-      run: docker run --rm --init -v $(pwd):/repo -w /repo linter:latest sh -c "git diff --diff-filter=d --name-only FETCH_HEAD | grep '\.c$\|\.h$\|\.cc$\|\.java$\|\.cs$' | xargs clang-format --verbose --style=file --dry-run --Werror "
diff --git a/.github/workflows/mips_toolchain.yml b/.github/workflows/mips_toolchain.yml
deleted file mode 100644
index 0234f00f21..0000000000
--- a/.github/workflows/mips_toolchain.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-# ref: https://codescape.mips.com/components/toolchain/2021.09-01/downloads.html
-name: mips Toolchain
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  mips:
-    strategy:
-      matrix:
-        targets: [mips64, mips64el]
-      fail-fast: false
-    name: Linux • Toolchain ${{ matrix.targets }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: Build env stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_env
-    - name: Build devel stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_devel
-    - name: Build build stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_build
-    - name: Build Test stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_test
diff --git a/.github/workflows/powerpc_toolchain.yml b/.github/workflows/powerpc_toolchain.yml
deleted file mode 100644
index cd64bdb235..0000000000
--- a/.github/workflows/powerpc_toolchain.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-# ref: https://toolchains.bootlin.com/
-name: powerpc Toolchain
-
-on: [push, pull_request, workflow_dispatch]
-
-# Building using the github runner environement directly.
-jobs:
-  powerpc:
-    strategy:
-      matrix:
-        targets: [ppc64, ppc64le]
-      fail-fast: false
-    name: Linux • Toolchain ${{ matrix.targets }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - name: Build env stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_env
-    - name: Build devel stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_devel
-    - name: Build build stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_build
-    - name: Build Test stage
-      run: make --directory=cmake toolchain_${{ matrix.targets }}_test