After this appendix, PiFxOS will be at parity with Raspbian/RPi as a hobbyist environment. Users will be able to read from sensors and control motors, LEDs, solenoids, slave boards, etc. PiFxOS will be able to fly a drone.)
* develop web API for general-purpose analog/digital IO pins (GPIOs){{bug|1087955}}
* develop web API for SPI
* develop web API for i2c (optional)