Choosing a default backend depending on the system architecture

[vruusmann]

The default backend is JPype, which implements Python-to-Java intercommunication using JNI. The latter requires native library support to work.

The one architecture/platform where this default fails is Mac ARM (Mac M1, M2).

For example, see here:
jpmml/sklearn2pmml#407 (comment)

The solution would be to perform some architecture auto-detection, and fall back to the most universal (but the least performant) Py4J backend.

I don't have access to Mac ARM to see the exact error (type, message and the full stack trace). Would appreciate if anybody would share this information with me.