diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index 349bbeb4b..7702d3d1a 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -33,6 +33,25 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
 
 jobs:
+  define-matrix:
+    runs-on: "ubuntu-latest"
+    outputs:
+      test_matrix: ${{ steps.test_matrix.outputs.test_matrix }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+      - name: Define testing matrix
+        id: test_matrix
+        run: |
+          if [ "${{ github.event_name }}" = "push" ]; then
+            echo "Using full matrix"
+            echo "test_matrix=$(jq -c . < ./.github/workflows/generated_full_matrix.json)" >> "$GITHUB_OUTPUT"
+          else
+            echo "Using PR matrix"
+            echo "test_matrix=$(jq -c . < ./.github/workflows/generated_pr_matrix.json)" >> "$GITHUB_OUTPUT"
+          fi
   lint:
     name: Check linting
     runs-on: ubuntu-latest
@@ -59,10 +78,11 @@ jobs:
 
   dependency:
     name: Check dependency
+    needs: define-matrix
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        include: ${{ fromJSON(needs.define-matrix.outputs.test_matrix) }}
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python
@@ -77,34 +97,12 @@ jobs:
         run: python -m tox run -e dependency
 
   build:
-    needs: lint
+    needs: [lint, define-matrix]
     strategy:
       matrix:
-        os:
-          - image: ubuntu-latest
-            id: manylinux_x86_64
-          - image: ubuntu-latest
-            id: manylinux_aarch64
-          - image: windows-latest
-            id: win_amd64
-          - image: windows-11-arm
-            id: win_arm64
-          - image: macos-latest
-            id: macosx_x86_64
-          - image: macos-latest
-            id: macosx_arm64
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
-        exclude:
-          - os:
-              image: windows-11-arm
-              id: win_arm64
-            python-version: "3.9"
-          - os:
-              image: windows-11-arm
-              id: win_arm64
-            python-version: "3.10"
-    name: Build ${{ matrix.os.id }}-py${{ matrix.python-version }}
-    runs-on: ${{ matrix.os.image }}
+        include: ${{ fromJSON(needs.define-matrix.outputs.test_matrix) }}
+    name: Build ${{ matrix.download_name }}-py${{ matrix.python-version }}
+    runs-on: ${{ matrix.os }}
     steps:
       - name: Set shortver
         run: echo "shortver=${longver//./}" >> $GITHUB_ENV
@@ -112,7 +110,7 @@ jobs:
           longver: ${{ matrix.python-version }}
         shell: bash
       - name: Set up QEMU
-        if: ${{ matrix.os.id == 'manylinux_aarch64' }}
+        if: ${{ matrix.download_name == 'manylinux_aarch64' }}
         uses: docker/setup-qemu-action@v2
         with:
           # xref https://github.com/docker/setup-qemu-action/issues/188
@@ -123,8 +121,8 @@ jobs:
       - name: Building wheel
         uses: pypa/cibuildwheel@v2.21.3
         env:
-          CIBW_BUILD: cp${{ env.shortver }}-${{ matrix.os.id }}
-          CIBW_ARCHS_WINDOWS: ${{ matrix.os.id == 'win_arm64' && 'ARM64' || 'auto' }}
+          CIBW_BUILD: cp${{ env.shortver }}-${{ matrix.download_name }}
+          CIBW_ARCHS_WINDOWS: ${{ matrix.download_name == 'win_arm64' && 'ARM64' || 'auto' }}
           MACOSX_DEPLOYMENT_TARGET: 10.14  # Should be kept in sync with ci/build_darwin.sh
         with:
           output-dir: dist
@@ -134,49 +132,17 @@ jobs:
       - uses: actions/upload-artifact@v4
         with:
           include-hidden-files: true
-          name: ${{ matrix.os.id }}_py${{ matrix.python-version }}
+          name: ${{ matrix.download_name }}_py${{ matrix.python-version }}
           path: dist/
 
   test:
-    name: Test ${{ matrix.os.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
-    needs: build
-    runs-on: ${{ matrix.os.image_name }}
+    name: Test ${{ matrix.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
+    needs: [build, define-matrix]
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
-        os:
-         - image_name: ubuntu-latest
-           download_name: manylinux_x86_64
-         - image_name: macos-latest
-           download_name: macosx_x86_64
-         - image_name: windows-latest
-           download_name: win_amd64
-         - image_name: windows-11-arm
-           download_name: win_arm64
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
-        cloud-provider: [aws, azure, gcp]
-        exclude:
-          - os:
-              image_name: windows-11-arm
-              download_name: win_arm64
-            python-version: "3.9"
-          - os:
-              image_name: windows-11-arm
-              download_name: win_arm64
-            python-version: "3.10"
-          - os:
-              image_name: windows-11-arm
-              download_name: win_arm64
-            python-version: "3.11"
-          - os:
-              image_name: windows-11-arm
-              download_name: win_arm64
-            python-version: "3.12"
-          - os:
-              image_name: windows-11-arm
-              download_name: win_arm64
-            python-version: "3.13"
-
+        include: ${{ fromJSON(needs.define-matrix.outputs.test_matrix) }}
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python
@@ -188,7 +154,7 @@ jobs:
       - name: Set up Java
         uses: actions/setup-java@v4 # for wiremock
         with:
-          java-version: ${{ matrix.os.download_name == 'win_arm64' && '21.0.5+11.0.LTS' || '11' }}
+          java-version: ${{ matrix.download_name == 'win_arm64' && '21.0.5+11.0.LTS' || '11' }}
           distribution: 'temurin'
           java-package: 'jre'
       - name: Fetch Wiremock
@@ -211,7 +177,7 @@ jobs:
       - name: Download wheel(s)
         uses: actions/download-artifact@v4
         with:
-          name: ${{ matrix.os.download_name }}_py${{ matrix.python-version }}
+          name: ${{ matrix.download_name }}_py${{ matrix.python-version }}
           path: dist
       - name: Show wheels downloaded
         run: ls -lh dist
@@ -236,7 +202,7 @@ jobs:
         if: always()
         with:
           include-hidden-files: true
-          name: coverage_${{ matrix.os.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
+          name: coverage_${{ matrix.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
           path: |
             .tox/.coverage
             .tox/coverage.xml
@@ -244,7 +210,7 @@ jobs:
         if: always()
         with:
           include-hidden-files: true
-          name: junit_${{ matrix.os.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
+          name: junit_${{ matrix.download_name }}-${{ matrix.python-version }}-${{ matrix.cloud-provider }}
           path: |
             .tox/junit.*.xml
 
@@ -391,8 +357,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
-        cloud-provider: [aws]
+        include: ${{ fromJSON(needs.define-matrix.outputs.test_matrix) }}
+        exclude:
+          - cloud-provider: gcp
+          - cloud-provider: azure
     steps:
       - name: Set shortver
         run: echo "shortver=${longver//./}" >> $GITHUB_ENV
diff --git a/.github/workflows/generated_full_matrix.json b/.github/workflows/generated_full_matrix.json
new file mode 100644
index 000000000..d8791916e
--- /dev/null
+++ b/.github/workflows/generated_full_matrix.json
@@ -0,0 +1,326 @@
+[
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.10",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.11",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.12",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.9",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.9",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.9",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.10",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.10",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.10",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.11",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.11",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.11",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.12",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.12",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.12",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.13",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.13",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.11",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.11",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.11",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.12",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.12",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.12",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.13",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.13",
+    "cloud-provider": "gcp"
+  }
+]
\ No newline at end of file
diff --git a/.github/workflows/generated_pr_matrix.json b/.github/workflows/generated_pr_matrix.json
new file mode 100644
index 000000000..9c5e104b8
--- /dev/null
+++ b/.github/workflows/generated_pr_matrix.json
@@ -0,0 +1,44 @@
+[
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "ubuntu-latest",
+    "download_name": "manylinux_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.9",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "macos-latest",
+    "download_name": "macosx_x86_64",
+    "python-version": "3.13",
+    "cloud-provider": "azure"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.9",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-latest",
+    "download_name": "win_amd64",
+    "python-version": "3.13",
+    "cloud-provider": "gcp"
+  },
+  {
+    "os": "windows-11-arm",
+    "download_name": "win_arm64",
+    "python-version": "3.13",
+    "cloud-provider": "aws"
+  }
+]
\ No newline at end of file
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 92aca15ef..7eec28410 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,6 +18,7 @@ repos:
             (?x)^(
                 license_header.txt|
                 src/snowflake/connector/nanoarrow_cpp/ArrowIterator/flatcc/.*\.h|
+                \.github/workflows/generated_.*|
             )$
     -   id: check-yaml
         exclude: >
@@ -71,6 +72,15 @@ repos:
         files: ^src/snowflake/connector/.*\.py$
         exclude: src/snowflake/connector/options.py
         args: [--show-fixes]
+    -   id: check-ci-matrix
+        name: Check if CI matrix changed
+        entry: python ci/generate_full_matrix.py
+        language: system
+        files: |
+          (?x)^(
+              ci/generate_full_matrix\.py|
+              \.github/workflows/generated_.*
+          )$
 -   repo: https://github.com/PyCQA/flake8
     rev: 7.1.1
     hooks:
diff --git a/ci/generate_full_matrix.py b/ci/generate_full_matrix.py
new file mode 100755
index 000000000..5201265b2
--- /dev/null
+++ b/ci/generate_full_matrix.py
@@ -0,0 +1,180 @@
+"""
+Generate generated_full_matrix.json and generated_pr_matrix.json for GitHub Actions workflows.
+
+Usage:
+    python ci/generate_full_matrix.py
+
+To customize, edit the configuration constants below and run the script.
+"""
+
+import json
+from dataclasses import dataclass
+from enum import Enum
+from itertools import product
+from pathlib import Path
+from typing import List, Tuple
+
+# ============================================================================
+# CONFIGURATION - Edit these to customize the matrix
+# ============================================================================
+
+
+@dataclass
+class PythonVersion:
+    """Python version configuration."""
+
+    version: str
+    test_on_pr: bool = False
+
+
+@dataclass
+class OperatingSystemInfo:
+    """Operating system configuration."""
+
+    name: str  # GitHub Actions runner image (e.g., "ubuntu-latest")
+    download_name: str  # Artifact download name (e.g., "manylinux_x86_64")
+
+
+class OperatingSystem(Enum):
+    """Available operating systems with their build configurations."""
+
+    UBUNTU = OperatingSystemInfo(
+        name="ubuntu-latest",
+        download_name="manylinux_x86_64",
+    )
+    MACOS = OperatingSystemInfo(
+        name="macos-latest",
+        download_name="macosx_x86_64",
+    )
+    WINDOWS = OperatingSystemInfo(
+        name="windows-latest",
+        download_name="win_amd64",
+    )
+    WINDOWS_ARM = OperatingSystemInfo(
+        name="windows-11-arm",
+        download_name="win_arm64",
+    )
+
+
+class Python(Enum):
+    """Available Python versions."""
+
+    PY39 = PythonVersion("3.9", test_on_pr=True)
+    PY310 = PythonVersion("3.10", test_on_pr=False)
+    PY311 = PythonVersion("3.11", test_on_pr=False)
+    PY312 = PythonVersion("3.12", test_on_pr=False)
+    PY313 = PythonVersion("3.13", test_on_pr=True)
+
+
+class CSP(Enum):
+    """Available cloud service providers."""
+
+    AWS = "aws"
+    AZURE = "azure"
+    GCP = "gcp"
+
+
+# OS-Python combinations to exclude from all matrices
+# Format: (os_name, python_version)
+EXCLUSIONS: List[Tuple[str, str]] = [
+    # Windows 11 ARM doesn't support Python 3.9 and 3.10
+    ("windows-11-arm", "3.9"),
+    ("windows-11-arm", "3.10"),
+]
+
+# Additional fields to add to each matrix entry (optional)
+# Example: {"with_snowpark": "true"}
+ADDITIONAL_FIELDS = {}
+
+# Output file paths (relative to repository root)
+_WORKFLOWS_DIR = Path(__file__).parent.parent / ".github" / "workflows"
+FULL_MATRIX_FILE = _WORKFLOWS_DIR / "generated_full_matrix.json"
+PR_MATRIX_FILE = _WORKFLOWS_DIR / "generated_pr_matrix.json"
+
+# JSON indentation
+INDENT = 2
+
+# ============================================================================
+# MATRIX GENERATION - No need to edit below this line
+# ============================================================================
+
+
+def _add_to_matrix(
+    matrix: list[dict], os: OperatingSystemInfo, csp_name: str, py_config: PythonVersion
+):
+    if (os.name, py_config.version) in EXCLUSIONS:
+        return
+
+    entry = {
+        "os": os.name,
+        "download_name": os.download_name,
+        "python-version": py_config.version,
+        "cloud-provider": csp_name,
+    }
+
+    # Add any additional fields
+    if ADDITIONAL_FIELDS:
+        entry.update(ADDITIONAL_FIELDS)
+
+    matrix.append(entry)
+
+
+def generate_matrix(pr_only: bool = False):
+    matrix = []
+
+    if pr_only:
+        csp_to_test = list(CSP)
+        for system in OperatingSystem:
+            os_config = system.value
+            csp_name = csp_to_test.pop(0).value if csp_to_test else CSP.AWS.value
+            for py_version in Python:
+                if py_version.value.test_on_pr:
+                    _add_to_matrix(matrix, os_config, csp_name, py_version.value)
+    else:
+        operating_systems = [os_enum.value for os_enum in OperatingSystem]
+        python_versions = [py_enum.value for py_enum in Python]
+        cloud_providers = [csp_enum.value for csp_enum in CSP]
+
+        for os_config, py_config, csp_name in product(
+            operating_systems, python_versions, cloud_providers
+        ):
+            _add_to_matrix(matrix, os_config, csp_name, py_config)
+    return matrix
+
+
+def write_matrix(matrix: List[dict], output_file: Path) -> Path:
+    output_file.write_text(json.dumps(matrix, indent=INDENT))
+    return output_file.resolve()
+
+
+def main():
+    """Generate and write both full and PR matrix files."""
+    print("Generating GitHub Actions test matrices...")
+    print("=" * 70)
+
+    # Generate full matrix (all combinations)
+    print("\n🔨 Generating FULL matrix (all OS × Python × CSP)...")
+    full_matrix = generate_matrix(pr_only=False)
+    full_path = write_matrix(full_matrix, FULL_MATRIX_FILE)
+    print(f"✓ Written to: {full_path}")
+
+    # Generate PR matrix (strategic pairings)
+    print("\n🔨 Generating PR matrix (strategic OS-CSP pairings × PR Python)...")
+    pr_matrix = generate_matrix(pr_only=True)
+    pr_path = write_matrix(pr_matrix, PR_MATRIX_FILE)
+    print(f"✓ Written to: {pr_path}")
+
+    # Final summary
+    print(f"\n{'='*70}")
+    print("✅ Successfully generated both matrices")
+    print(f"{'='*70}")
+    print(f"  Full matrix: {len(full_matrix):2d} combinations")
+    print(
+        f"  PR matrix:   {len(pr_matrix):2d} combinations (saves {len(full_matrix) - len(pr_matrix)} jobs)"
+    )
+    print(f"  Exclusions:  {len(EXCLUSIONS):2d}")
+    print(f"{'='*70}\n")
+
+
+if __name__ == "__main__":
+    main()