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.github/workflows/build-wheels.yml

@@ -209,6 +209,10 @@ jobs:
       shell: bash
 
     - name: Install experimental Python 3.8 arm64 build
+      # By default, cibuildwheel installs and uses Python 3.8 x86_64 to cross compile arm64 wheels
+      # There is a bug that builds x86_64 wheels instead, so we install this Python 3.8 native ARM build to ensure
+      # the wheel is compiled in arm64
+      # https://cibuildwheel.pypa.io/en/stable/faq/#macos-building-cpython-38-wheels-on-arm64
       if: ${{ matrix.platforms[0] == 'macosx_arm64' && matrix.python == 'cp38' }}
       run: |
         curl -o /tmp/Python38.pkg https://www.python.org/ftp/python/3.8.10/python-3.8.10-macos11.pkg