All ESP8266 boards running MicroPython.
Official boards are the Adafruit Huzzah and Feather boards.
Target audience: MicroPython users with an ESP8266 board.
I think I know the answer but just to be sure, currently is it possible to include a pure python package (a folder with __init__.py, etc) somewhere in order to use it from boot.py ? (I'm using ESP8266-01)