libblosc2-3 binary package in Ubuntu Oracular arm64

 Blosc is a high performance compressor optimized for binary data. It has been
 designed to transmit data to the processor cache faster than the traditional,
 non-compressed, direct memory fetch approach via a memcpy() OS call. Blosc
 main goal is not just to reduce the size of large datasets on-disk or
 in-memory, but also to accelerate memory-bound computations.
 .
 C-Blosc2 is the new major version of C-Blosc, and tries hard to be backward
 compatible with both the C-Blosc1 API and its in-memory format. However, the
 reverse thing is generally not true for the format; buffers generated with
 C-Blosc2 are not format-compatible with C-Blosc1 (i.e. forward compatibility
 is not supported). In case you want to ensure full API compatibility with
 C-Blosc1 API, define the BLOSC1_COMPAT symbol.

Source package