Just created a repository for it. The full-basic-function firmware is also listed there, some of these more sophisticated features I’m not comfortable releasing yet. This is a full-function temperature control with heat/cool outputs, humidity control with humidify/dry outputs, PWM-fan speed control for 3-wire fans (2 channels). This should be all that is needed, if I forgot something let me know. I have some extra boards I’d give to anyone that would build one!