diff --git a/.github/workflows/_build-non-pure-package.yml b/.github/workflows/_build-non-pure-package.yml
new file mode 100644
index 0000000..df5d8da
--- /dev/null
+++ b/.github/workflows/_build-non-pure-package.yml
@@ -0,0 +1,147 @@
+name: Build wheel and sdist for a non-pure Python package
+
+on:
+  workflow_call:
+
+jobs:
+  build_sdist:
+    defaults:
+        run:
+          shell: bash -l {0}
+
+    name: Build sdist
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Initialize miniconda
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: sdist
+          channels: conda-forge
+          auto-update-conda: true
+          auto-activate-base: false
+          python-version: 3.13
+
+      - name: Conda config
+        run: >-
+          conda config --set always_yes yes
+          --set changeps1 no
+
+      - name: Build sdist
+        run: |
+          pip install --upgrade build
+          python -m build --sdist
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: cibw-sdist
+          path: ./dist/*.tar.gz
+
+  build-wheels:
+    needs: [build_sdist]
+    defaults:
+        run:
+          shell: bash -l {0}
+
+    name: cibw-wheels-${{ matrix.python }}-${{ matrix.buildplat }}
+    runs-on: ${{ matrix.buildplat }}
+    strategy:
+      fail-fast: false
+      matrix:
+        buildplat:
+          - ubuntu-latest
+          - macos-13
+          - macos-14
+          - windows-latest
+        python:
+          - "3.11"
+          - "3.12"
+          - "3.13"
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Initialize miniconda
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: build
+          channels: conda-forge
+          auto-update-conda: true
+          auto-activate-base: false
+          python-version: ${{ matrix.python }}
+
+      - name: Conda config
+        run: >-
+          conda config --set always_yes yes
+          --set changeps1 no
+
+      - name: Install requirements
+        run: |
+          conda install --file requirements/conda.txt
+          conda install --file requirements/pip.txt
+          pip install --upgrade build
+          python -m pip wheel --no-deps --wheel-dir ./dist .
+
+      - name: Upload wheels to GitHub
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.python }}-${{ matrix.buildplat }}.whl
+          path: ./dist/*.whl
+
+  test-wheels:
+    needs: [build-wheels]
+    defaults:
+        run:
+          shell: bash -l {0}
+
+    name: test-wheels-${{ matrix.python }}-${{ matrix.buildplat }}
+    runs-on: ${{ matrix.buildplat }}
+    strategy:
+      fail-fast: false
+      matrix:
+        buildplat:
+          - ubuntu-latest
+          - macos-13
+          - macos-14
+          - windows-latest
+        python:
+          - "3.11"
+          - "3.12"
+          - "3.13"
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Download wheels
+        uses: actions/download-artifact@v4
+        with:
+          name: ${{ matrix.python }}-${{ matrix.buildplat }}.whl
+          path: ./dist
+
+      - name: Initialize miniconda
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          activate-environment: test
+          channels: conda-forge
+          auto-update-conda: true
+          auto-activate-base: false
+          python-version: ${{ matrix.python }}
+
+      - name: Conda config
+        run: >-
+          conda config --set always_yes yes
+          --set changeps1 no
+
+      - name: Install requirements
+        run: |
+          conda install --file requirements/conda.txt
+          conda install --file requirements/tests.txt
+
+      - name: Install wheel and test
+        run: |
+          pip install ./dist/*.whl
+          pytest
diff --git a/.github/workflows/_build-pdffit2-package.yml b/.github/workflows/_build-pdffit2-package.yml
deleted file mode 100644
index e2a6702..0000000
--- a/.github/workflows/_build-pdffit2-package.yml
+++ /dev/null
@@ -1,100 +0,0 @@
-name: Build wheel and sdist for a non-pure Python package
-
-on:
-  workflow_call:
-
-jobs:
-  build_sdist:
-    name: Build diffpy.pdffit2 sdist
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: ${{ github.ref }}
-
-      - name: Build sdist
-        run: pipx run build --sdist
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: cibw-sdist
-          path: ./dist/*.tar.gz
-
-  build-wheels:
-    needs: [build_sdist]
-    defaults:
-        run:
-          shell: bash -l {0}
-
-    name: cibw-wheels-${{ matrix.python[0] }}-${{ matrix.buildplat[0] }}
-    runs-on: ${{ matrix.buildplat[0] }}
-    strategy:
-      fail-fast: false
-      matrix:
-        buildplat:
-          - [ubuntu-latest, manylinux_x86_64]
-          - [macos-13, macosx_x86_64]
-          - [macos-14, macosx_arm64]
-          - [windows-latest, win_amd64]
-        python:
-          - ["3.11", "cp311"]
-          - ["3.12", "cp312"]
-          - ["3.13", "cp313"]
-
-    steps:
-      - name: Check out ${{ inputs.project }}
-        uses: actions/checkout@v4
-
-      - name: Set up Python ${{ matrix.python[0] }}
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python[0] }}
-
-      - name: Linux build wheels
-        if: runner.os == 'Linux'
-        uses: pypa/cibuildwheel@v2.21.1
-        env:
-          CIBW_BUILD: ${{ matrix.python[1] }}-${{ matrix.buildplat[1] }}
-          CIBW_BEFORE_BUILD: yum install -y gsl-devel && pip install -e .
-        with:
-          output-dir: dist
-
-      - name: macOS build wheels
-        if: runner.os == 'macOS'
-        uses: pypa/cibuildwheel@v2.21.1
-        env:
-          CIBW_BUILD: ${{ matrix.python[1] }}-${{ matrix.buildplat[1] }}
-          MACOSX_DEPLOYMENT_TARGET: 13.0
-          CIBW_BEFORE_BUILD: brew install gsl && pip install -e .
-        with:
-          output-dir: dist
-
-      - name: Windows setup conda environment
-        if: runner.os == 'Windows'
-        uses: conda-incubator/setup-miniconda@v3
-        with:
-          activate-environment: gsl
-          channels: conda-forge
-          auto-update-conda: true
-          auto-activate-base: false
-
-      - name: Windows install gsl
-        if: runner.os == 'Windows'
-        run: |
-          conda config --set always_yes yes --set changeps1 no
-          conda install gsl
-
-      - name: Windows build wheels
-        if: runner.os == 'Windows'
-        uses: pypa/cibuildwheel@v2.21.1
-        env:
-          CIBW_BUILD: ${{ matrix.python[1] }}-${{ matrix.buildplat[1] }}
-          CONDA_PREFIX: ${{ env.CONDA_PREFIX }}
-        with:
-          output-dir: dist
-
-      - name: Upload wheels to GitHub
-        uses: actions/upload-artifact@v4
-        with:
-          name: ${{ matrix.python[0] }}-${{ matrix.buildplat[0] }}.whl
-          path: ./dist/*.whl
diff --git a/.github/workflows/_build-wheel-release-upload.yml b/.github/workflows/_build-wheel-release-upload.yml
index 9aa3ab9..ddc541d 100644
--- a/.github/workflows/_build-wheel-release-upload.yml
+++ b/.github/workflows/_build-wheel-release-upload.yml
@@ -38,8 +38,8 @@ jobs:
 
   build-non-pure-python-package:
     needs: [tag-privilege-check]
-    if: inputs.project == 'diffpy.pdffit2' || inputs.project == 'diffpy.srreal' || inputs.project == 'pyobjcryst'
-    uses: ./.github/workflows/_build-pdffit2-package.yml
+    if: inputs.c_extension
+    uses: ./.github/workflows/_build-non-pure-package.yml
 
   update-changelog:
     # The always() function is necessary to ensure that we wait for both build jobs to complete, even if one of them is skipped.