Follow-up to the big reorg PR #427

Job	Run time
prepare	3s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=native)	1m 27s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=x86-64)	1m 5s
Build with Pip (ubuntu-22.04, 3.8, gcc, -march=native)	1m 2s
Build with Pip (ubuntu-22.04, 3.8, gcc, -march=x86-64)	58s
Build with Pip (ubuntu-22.04, 3.11, llvm, -march=native)	1m 12s
Build with Pip (ubuntu-22.04, 3.11, llvm, -march=x86-64)	1m 9s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=native)	54s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=x86-64)	59s
Build with Pip (windows-2022, 3.8, msvc, /arch:AVX2)	11m 58s
Build with Pip (windows-2022, 3.8, msvc, /arch:SSE2)	11m 55s
Build with Pip (windows-2022, 3.8, llvm, /arch:AVX2)	12m 30s
Build with Pip (windows-2022, 3.8, llvm, /arch:SSE2)	11m 58s
Build with Pip (windows-2022, 3.11, msvc, /arch:AVX2)	12m 24s
Build with Pip (windows-2022, 3.11, msvc, /arch:SSE2)	12m 12s
Build with Pip (windows-2022, 3.11, llvm, /arch:AVX2)	11m 45s
Build with Pip (windows-2022, 3.11, llvm, /arch:SSE2)	12m 29s
Build with Pip (macos-13, 3.8, llvm, -march=native)	2m 38s
Build with Pip (macos-13, 3.8, llvm, -march=x86-64)	3m 58s
Build with Pip (macos-13, 3.8, gcc-14, -march=native)	2m 32s
Build with Pip (macos-13, 3.8, gcc-14, -march=x86-64)	1m 47s
Build with Pip (macos-13, 3.11, llvm, -march=native)	2m 52s
Build with Pip (macos-13, 3.11, llvm, -march=x86-64)	2m 44s
Build with Pip (macos-13, 3.11, gcc-14, -march=native)	2m 31s
Build with Pip (macos-13, 3.11, gcc-14, -march=x86-64)	2m 32s
	2h 7m 34s

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