This beta group has been going on for a year, early 2019. Our retention rate is really poor, until today's posting about 400 signups and only 8 made it to the end. The current first phase is actually to answer this question:

"For the students that complete the whole curriculum, could they contribute to a codebase that users use and follow good coding practices like an engineer would?"

The answer is yes, so now we have a happy path. Next phase is to increase this funnel.