In chapter 11, we've added assets to Brushfire for the start of chapter 11. Therefore, it's necessary to clone the chapter 11 repo named brushfire-ch11-start before starting the chapter. Chapter 11 also has an ending GitHub repo named brushfire-ch11-end. If you'd like to see what the project looks like by the end of chapter 11 or you want to use it for the start of chapter 12, clone this repo.