diff --git a/.github/workflows/test-sundials.yml b/.github/workflows/test-sundials.yml
index aa0b8ad..0a1982d 100644
--- a/.github/workflows/test-sundials.yml
+++ b/.github/workflows/test-sundials.yml
@@ -127,3 +127,71 @@ jobs:
         tox
       env:
         TOXENV: ${{ matrix.tox-env }}
+
+  tests-win-mac:
+    name: tests (${{ matrix.python-version }}, ${{matrix.sundials-version}}, ${{ matrix.os }}, double, 32)
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-latest, macos-latest, macos-13]
+        python-version: ["3.9", "3.13"]
+        sundials-version: ["7.1.1"]
+        include:
+          - python-version: "3.9"
+            tox-env: py39
+          - python-version: "3.13"
+            tox-env: py313
+        
+    defaults:
+      run:
+        shell: bash -l {0}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Python and SUNDIALS
+        uses: mamba-org/setup-micromamba@v2
+        with:
+          environment-name: odes
+          create-args: >-
+            python=${{ matrix.python-version }}
+            sundials=${{ matrix.sundials-version }}
+          condarc: |
+            channels:
+              - conda-forge
+
+      - name: Verify environment
+        run: |
+          micromamba info
+          micromamba list
+
+      - name: Set SUNDIALS path
+        run: |
+          if [[ "$RUNNER_OS" == "Windows" ]]; then
+            SUNDIALS_INST="$CONDA_PREFIX\Library"
+          else
+            SUNDIALS_INST="$CONDA_PREFIX"
+          fi
+
+          echo "SUNDIALS_INST is set to: $SUNDIALS_INST"
+          echo "SUNDIALS_INST=$SUNDIALS_INST" >> $GITHUB_ENV
+
+      - name: Install python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install --upgrade setuptools
+          python -m pip install --upgrade tox
+
+      - name: List info
+        run: |
+          micromamba info
+          micromamba list
+                
+      - name: Run tests
+        working-directory: packages/scikits-odes-sundials
+        run: tox
+        env:
+          TOXENV: ${{ matrix.tox-env }}
diff --git a/packages/scikits-odes-sundials/tox.ini b/packages/scikits-odes-sundials/tox.ini
index 22853a3..d924136 100644
--- a/packages/scikits-odes-sundials/tox.ini
+++ b/packages/scikits-odes-sundials/tox.ini
@@ -4,6 +4,7 @@ setenv = LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8
 
 [testenv]
 passenv=
+    SUNDIALS_INST
     SUNDIALS_DIR
     SUNDIALS_LIBDIR
     SUNDIALS_INCLUDEDIR