The main objective of this paper is to describe collaborative technology called LibreSource and how it is used to implement an innovative learning/teaching activity designed for software engineering students. From the educational perspective, this educational activity is based on the principles of problem-based learning and the latest Learning Design theory. The main objective of this activity to offer students a real-life experience in collaborative software development. Compared to the popular Learning Management Systems that only offer collaborative tools and support individual collaborative tasks, this technology enables design and implementation of complex collaborative processes.