Issues running on Apple Silicon (ARM64 Native)

[M-Whitaker]

Testing on my M1 MacBook Pro, I can see a problem installing pynacl due to its dependency on cffi which seems to not build properly in the python wheel as documented pyca/pynacl#654. Of course this does not take into account of simply running in Rosetta.

[systemcrash]

Please try current master :)

[M-Whitaker]

All working now: @ 984a98c

:)