@Radu62s don't worry, people can contribute what they can. Bob and I are lucky to be able to live on social security now, and we have lots of time. We both had day jobs most of our lives, and families, so we understand! So weekend warrior is great, really! Both Chris and Maria are very part time on this project actually, with jobs and other commitments in their lives. And Bob and I are in support roles, so we spend only the time needed to support others. So the UI/UX project is moving basically as fast as Maria and Chris set the pace. Which is working well.
The original NRP (if you want to work on that) proceeds at a variable pace depending on priorities and time. Right now I'm focused on re-writing the Exchange portion of the NRP, and Bob is more focused on supporting the UI/UX project. And we do some support for the local herbal network that uses NRP and is active right now.
Once you have done the homework you want to, we can figure it out together.