Net Yaroze Developers - How It Worked & Development Limits

Question for those experienced with the net yaroze Sorry if I'm asking this in the wrong place, but I wasn't sure where to look. I'm trying to do research for a story I'm writing and I need to know. How did it work? I've only ever heard of the net yaroze and the basic concept of it. Was there a limit to what could be made with it? And what was the coding like?