We are all used to open source projects. Concepts such as community, code review process, continuous integration, geographically distributed contributions, community managers, and a whole myriad of terms and collaborative way of working are usual for all of us. And enterprises are learning from this open process. Those are changing the direction of their development models to a more open one within the organization. Initiatives such as the Inner Source Commons where companies such as PayPal or Bloomberg are publicly exposing their case, help others to deal with the usual problems they face.