Chapter 11 difficulty level was too high

This chapter was extremely advanced. In my view, the author is explaining concepts or steps to someone who already knows what is going on or what all the various things are about. As a beginner, I would find this useless. In the previous chapters, I didn’t have these issues or at least I had less of them.

@hosami thanks for your feedback.
Anything specific that you’d like to suggest? It’d be really helpful to know what were the biggest obstacles you found, so we can focus on this.

I would suggest either breaking down the code fragments that we have to copy and paste into smaller sections or explaining more what each line (or section of that code) does. Or adding a bit of background to the reason for adding those code parts.