Really cool idea. Does it matter whether the project is intended to ever make money?
I had a talk with the first user and he seemed to understand this as a bridge to start working on Node.js. What he wanted was any concrete opportunity to work on anything, and didnt care about being paid. He signed up as a junior dev, but really is a senior contract engineer.
This is exactly what I’m trying to hash out: https://calendly.com/rememberlenny/20min-smjdev