Only build x86_64 and arm64 on Linux

Builds take forever using QEMU, and its probably not worth it

Author: skogler

.github/workflows/build.yml

@@ -19,19 +19,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up QEMU
-        if: runner.os == 'Linux' && runner.arch == 'X64'
-        uses: docker/setup-qemu-action@v3
-        with:
-          platforms: all
-
       - name: Build wheels
         uses: pypa/cibuildwheel@v3.3.0
         env:
-          # configure cibuildwheel on Linux to build native archs ('auto'),
-          # and to split the remaining architectures between the x86_64 and
-          # ARM runners
-          CIBW_ARCHS_LINUX: ${{ runner.arch == 'X64' && 'auto ppc64le s390x' || 'auto' }}
+          # Only build native arch on linux (x86_64 and arm64)
+          CIBW_ARCHS_LINUX: auto
           # Need this to be >= 10.13 to support C++17 aligned allocations on Intel
           MACOSX_DEPLOYMENT_TARGET: ${{ matrix.os == 'macos-15-intel' && '10.13' || (startsWith(matrix.os, 'macos') && '11.0' || '') }}
           # Only build Python 3.11+ on Windows 11 ARM