diff --git a/.github/scripts/build-macos.sh b/.github/scripts/build-macos.sh
index 3dd341d..f6997cd 100755
--- a/.github/scripts/build-macos.sh
+++ b/.github/scripts/build-macos.sh
@@ -37,11 +37,11 @@ pip freeze
 # By default, wheels are tagged with the architecture of the Python
 # installation, which would produce universal2 even if only building
 # for x86_64. The following line overrides that behavior.
-export _PYTHON_HOST_PLATFORM="macosx-${MACOS_MIN_VERSION}-$ARCH"
+export _PYTHON_HOST_PLATFORM="macosx-${MACOS_MIN_VERSION}-${PYTHON_ARCH}"
 
 export CC=clang
 export CXX=clang++
-export CFLAGS="-arch $ARCH"
+export CFLAGS="-arch ${PYTHON_ARCH}"
 export CXXFLAGS=$CFLAGS
 export LDFLAGS=$CFLAGS
 export ARCHFLAGS=$CFLAGS
@@ -54,7 +54,7 @@ python setup.py bdist_wheel
 # no shared library dependencies that have to be bundled.
 
 delocate-listdeps --all --depending dist/*.whl # lists library dependencies
-delocate-wheel --verbose --require-archs=$ARCH dist/*.whl # copies library dependencies into wheel
+delocate-wheel --verbose --require-archs=${PYTHON_ARCH} dist/*.whl # copies library dependencies into wheel
 delocate-listdeps --all --depending dist/*.whl # verify
 
 # Dump target versions of dependend libraries.
diff --git a/.github/scripts/build-windows.ps1 b/.github/scripts/build-windows.ps1
index 1525998..ec6bcc1 100644
--- a/.github/scripts/build-windows.ps1
+++ b/.github/scripts/build-windows.ps1
@@ -22,7 +22,6 @@ function Initialize-Python {
     }
     # Check Python version/arch
     exec { python -c "import platform; assert platform.python_version().startswith('$env:PYTHON_VERSION')" }
-    exec { python -c "import struct; assert struct.calcsize('P') * 8 == $env:PYTHON_ARCH" }
 }
 
 function Create-VEnv {
@@ -63,8 +62,8 @@ function Exit-VEnv {
 if (!$env:PYTHON_VERSION) {
     throw "PYTHON_VERSION env var missing, must be x.y"
 }
-if ($env:PYTHON_ARCH -ne '32' -and $env:PYTHON_ARCH -ne '64') {
-    throw "PYTHON_ARCH env var must be 32 or 64"
+if ($env:PYTHON_ARCH -ne 'x86' -and $env:PYTHON_ARCH -ne 'x86_64') {
+    throw "PYTHON_ARCH env var must be x86 or x86_64"
 }
 if (!$env:NUMPY_VERSION) {
     throw "NUMPY_VERSION env var missing"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 92194ed..2955cb8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,64 +40,68 @@ jobs:
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.9'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.12'
           numpy-version: '2.0.*'
 
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.9'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.12'
           numpy-version: '2.0.*'
 
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.12'
           numpy-version: '2.0.*'
@@ -105,22 +109,22 @@ jobs:
         - os-image: windows-latest
           os-name: windows
           python-version: '3.9'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.10'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.11'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.12'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
 
     permissions:
@@ -171,7 +175,7 @@ jobs:
       if: matrix.config.os-name == 'mac'
       run: .github/scripts/build-macos.sh
       env:
-        ARCH: ${{ matrix.config.arch }}
+        PYTHON_ARCH: ${{ matrix.config.python-arch }}
         MACOS_MIN_VERSION: ${{ matrix.config.macos-min-version }}
         PYTHON_VERSION: ${{ matrix.config.python-version }}
         NUMPY_VERSION: ${{ matrix.config.numpy-version }}
@@ -179,7 +183,7 @@ jobs:
     - name: Store wheel as artifact
       uses: actions/upload-artifact@v4
       with:
-        name: wheels
+        name: wheel-${{ matrix.config.os-name }}-${{ matrix.config.python-arch }}-${{ matrix.config.python-version }}
         path: dist
 
     # - name: Perform CodeQL Analysis
@@ -198,64 +202,68 @@ jobs:
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.9'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: ubuntu-latest
           os-name: linux
           docker-image: quay.io/pypa/manylinux2014_x86_64
+          python-arch: 'x86_64'
           python-version: '3.12'
           numpy-version: '2.0.*'
 
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.9'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: macos-12
           os-name: mac
-          arch: x86_64
+          python-arch: x86_64
           macos-min-version: '10.9'
           python-version: '3.12'
           numpy-version: '2.0.*'
 
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.10'
           numpy-version: '2.0.*'
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.11'
           numpy-version: '2.0.*'
         - os-image: macos-14 # M1
           os-name: mac
-          arch: arm64
+          python-arch: arm64
           macos-min-version: '11.0'
           python-version: '3.12'
           numpy-version: '2.0.*'
@@ -263,22 +271,22 @@ jobs:
         - os-image: windows-latest
           os-name: windows
           python-version: '3.9'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.10'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.11'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
         - os-image: windows-latest
           os-name: windows
           python-version: '3.12'
-          python-arch: '64'
+          python-arch: 'x86_64'
           numpy-version: '2.0.*'
 
     runs-on: ${{ matrix.config.os-image }}
@@ -291,10 +299,10 @@ jobs:
       with:
         submodules: true
 
-    - name: Download wheels from artifact storage
+    - name: Download wheel from artifact storage
       uses: actions/download-artifact@v4
       with:
-        name: wheels
+        name: wheel-${{ matrix.config.os-name }}-${{ matrix.config.python-arch }}-${{ matrix.config.python-version }}
         path: dist
 
     - name: Test wheel (Linux)
@@ -333,14 +341,14 @@ jobs:
         .github/scripts/install-macos-obs-virtual-cam.sh
         .github/scripts/test-macos.sh
       env:
-        ARCH: ${{ matrix.config.arch }}
+        PYTHON_ARCH: ${{ matrix.config.python-arch }}
         PYTHON_VERSION: ${{ matrix.config.python-version }}
 
     - name: Store test captures as artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: always()
       with:
-        name: test_captures
+        name: test_captures-${{ matrix.config.os-name }}-${{ matrix.config.python-arch }}-${{ matrix.config.python-version }}
         path: 'tmp_for_test/*.png'
         if-no-files-found: ignore
 
@@ -360,7 +368,8 @@ jobs:
     - name: Download wheels from artifact storage
       uses: actions/download-artifact@v4
       with:
-        name: wheels
+        pattern: wheel-*
+        merge-multiple: true
         path: dist
 
     - name: Install from wheel
@@ -372,9 +381,8 @@ jobs:
       run: sphinx-build -b html docs dist-docs
 
     - name: Store docs HTML as artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-pages-artifact@v3
       with:
-        name: docs
         path: dist-docs
 
   publish-wheels:
@@ -388,7 +396,8 @@ jobs:
     - name: Download wheels from artifact storage
       uses: actions/download-artifact@v4
       with:
-        name: wheels
+        pattern: wheel-*
+        merge-multiple: true
         path: dist
 
     - name: Setup Python
@@ -407,19 +416,14 @@ jobs:
     needs: [publish-wheels]
 
     permissions:
-      contents: write
+      pages: write      # to deploy to Pages
+      id-token: write   # to verify the deployment originates from an appropriate source
 
-    steps:
-    - name: Download docs HTML from artifact storage
-      uses: actions/download-artifact@v4
-      with:
-        name: docs
-        path: dist-docs
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
 
-    # TODO replace with https://github.com/actions/deploy-pages once out of beta
-    - name: Upload docs to GitHub Pages
-      uses: peaceiris/actions-gh-pages@47a6d63ea8b47b19328e258563aa1fbe224c0a23
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        PUBLISH_BRANCH: gh-pages
-        PUBLISH_DIR: ./dist-docs
+    steps:
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v4