"requirements" should document that libh5bshuf.so is required for certain HDF5 files

it took me some time to realize that for some data sets, libh5bshuf.so must be present in /usr/local/hdf5/lib/plugin , or in the directory pointed at by the environment variable HDF5_PLUGIN_PATH .
Could this pls be documented?
I am trying to compile bitshuffle-0.4.2 on M1 Apple but I am having a hard time; seems like it wants to compile for x86_64 Apple ... if somebody could prepare such a library then durin could be used natively on M1 Apple.