In chapter 6, we've added assets to Brushfire for the start of chapter 6. Therefore, it's necessary to clone the chapter 6 repo named brushfire-ch6-start before starting the chapter. Chapter 6 also has an ending GitHub repo named brushfire-ch6-end. If you'd like to see what the project looks like by the end of chapter 6 or you want to use it for the start of chapter 7, clone this repo.