I have a confusion between the different repository sections, can you provide a short explanation what each of this is meant for? stm32flash stm32f0-barebone Runtime Arduino Tools My main question is the relationship between them. What I understand at the moment is that all the repositories are for developing different parts, and when they are ready they finally go to the Arduino repository. So for someone that wants to program with Ell-i, the only one that is interesting is the Arduino repository? What is each one for? And what is tools supposed to have? Aren't the tools also included in the Arduino IDE, or is about other tools that support writing C code directly and loading to the Ell-i board as what I understand the HelloWorld example in there is for? Thanks! Felix.