Follow-up to the big reorg PR #434

Job	Run time
prepare	2s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=native)	1m 21s
Build with Pip (ubuntu-22.04, 3.8, llvm, -march=x86-64)	1m 10s
Build with Pip (ubuntu-22.04, 3.8, gcc, -march=native)	59s
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 22s
Build with Pip (ubuntu-22.04, 3.11, llvm, -march=x86-64)	1m 7s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=native)	1m 8s
Build with Pip (ubuntu-22.04, 3.11, gcc, -march=x86-64)	1m 4s
Build with Pip (windows-2022, 3.8, msvc, /arch:AVX2)	11m 48s
Build with Pip (windows-2022, 3.8, msvc, /arch:SSE2)	11m 4s
Build with Pip (windows-2022, 3.8, llvm, /arch:AVX2)	12m 2s
Build with Pip (windows-2022, 3.8, llvm, /arch:SSE2)	12m 19s
Build with Pip (windows-2022, 3.11, msvc, /arch:AVX2)	12m 12s
Build with Pip (windows-2022, 3.11, msvc, /arch:SSE2)	12m 23s
Build with Pip (windows-2022, 3.11, llvm, /arch:AVX2)	13m 4s
Build with Pip (windows-2022, 3.11, llvm, /arch:SSE2)	12m 20s
Build with Pip (macos-13, 3.8, llvm, -march=native)	3m 19s
Build with Pip (macos-13, 3.8, llvm, -march=x86-64)	4m 25s
Build with Pip (macos-13, 3.8, gcc-14, -march=native)	2m 44s
Build with Pip (macos-13, 3.8, gcc-14, -march=x86-64)	3m 16s
Build with Pip (macos-13, 3.11, llvm, -march=native)	4m 39s
Build with Pip (macos-13, 3.11, llvm, -march=x86-64)	4m 32s
Build with Pip (macos-13, 3.11, gcc-14, -march=native)	2m 58s
Build with Pip (macos-13, 3.11, gcc-14, -march=x86-64)	1m 57s
	2h 14m 11s

Provide feedback