Follow-up to the big reorg PR #437

Job	Run time
prepare	4s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=native)	1m 12s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=x86-64)	1m 15s
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)	56s
Build with Pip (ubuntu-22.04, 3.11, llvm, -march=native)	1m 17s
Build with Pip (ubuntu-22.04, 3.11, llvm, -march=x86-64)	1m 6s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=native)	1m 0s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=x86-64)	1m 1s
Build with Pip (windows-2022, 3.8, msvc, /arch:AVX2)	11m 54s
Build with Pip (windows-2022, 3.8, msvc, /arch:SSE2)	11m 26s
Build with Pip (windows-2022, 3.8, llvm, /arch:AVX2)	12m 18s
Build with Pip (windows-2022, 3.8, llvm, /arch:SSE2)	12m 51s
Build with Pip (windows-2022, 3.11, msvc, /arch:AVX2)	11m 43s
Build with Pip (windows-2022, 3.11, msvc, /arch:SSE2)	11m 30s
Build with Pip (windows-2022, 3.11, llvm, /arch:AVX2)	12m 59s
Build with Pip (windows-2022, 3.11, llvm, /arch:SSE2)	12m 28s
Build with Pip (macos-13, 3.8, llvm, -march=native)	4m 3s
Build with Pip (macos-13, 3.8, llvm, -march=x86-64)	4m 18s
Build with Pip (macos-13, 3.8, gcc-14, -march=native)	19m 44s
Build with Pip (macos-13, 3.8, gcc-14, -march=x86-64)	1m 45s
Build with Pip (macos-13, 3.11, llvm, -march=native)	6m 2s
Build with Pip (macos-13, 3.11, llvm, -march=x86-64)	2m 54s
Build with Pip (macos-13, 3.11, gcc-14, -march=native)	1m 59s
Build with Pip (macos-13, 3.11, gcc-14, -march=x86-64)	1m 40s
	2h 28m 27s

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