As Be-ing put it very well in a comment:

I like this idea, but the barrier to entry to working with Mixco is quite high. The way the documentation is now requires a strong background in Node, JS, CoffeeScript, and Mixxx's mapping formats to know where to start. The documentation for each of Mixco's modules is pretty good. But what I think is missing is a general overview tutorial that explains

It's time to start unit testing our code and getting a CI runner up.

For Unit Testing, we plan to use Jest:
https://facebook.github.io/jest/docs/tutorial-react.html

For CI, we plan to use Travis:
https://travis-ci.org/facebook/react

Both of these have good tutorials and documentation for setting up with React, so it should be a piece of cake...