libopenblas64-dev 0.3.8+ds-1ubuntu0.20.04.1 (arm64 binary) in ubuntu focal

 OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
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 Unlike Atlas, OpenBLAS provides a multiple architecture library.
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 All kernel will be included in the library and dynamically switched to the
 best architecture at run time (only on amd64, arm64, i386 and ppc64el).
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 This package includes the static libraries and symbolic links
 needed for program development.
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 This metapackage provides a 64-bit indexing version.