Sconsduino
To start off, I’ll do a brief introduction to sconsduino. It’s a library I’ve been working on at work that lets me write simple SConsconstruct files (for scons) to build software for Arduino. It’s meant to be a step between the Arduino IDE and full raw AVR development.
Currently, it only supports Teensy3, Arduino Pro Mini, and raw ATMEGA328P, because that’s what we use at work.