Yes, I'm thinking about maybe creating 2 versions - one self-taught, and the other a classroom taught version, with slide deck, etc.

Thinking also about open sourcing it - just putting up on github, as well as Amazon.

But there's no getting around it - you still have to market, and not just a little bit - a lot. Products that aren't marketed - even though they may be free - never get any traction. Nobody ever hears about them.