Ooh, I’ve just bought a Teensy 4. I really like having CircuitPython on boards which also run Arduino/C, my knowledge of Python is much better so I can do a quick prototype in CircuitPython to ...

Users running CircuitPython 5.0.0-alpha.4 will be unable to replace files on the CIRUITPY drive from iPad and should instead paste/rename code.py – or simply load CircuitPython v4.1.0.