Along these lines, this is why Dan Abramov's Getting Started with Redux[1] is one of my favorite tutorials to anything, ever. The concepts are simple, and half the tutorial is walking through creating a naive implementation of Redux. The actual library, of course, involves performance optimizations and better edge case handling, but at the very least, having a "this is sort of what the innards look like" is a really nice start to approaching anything.

[1] https://egghead.io/courses/getting-started-with-redux