title: React Native. What is inner logic of starting guide screen of mobile app?
body: <p>We start an app and there you see screen with multiple pages guide about how to use this app etc. How it works?
  My suggestions: I have guide key in firebase, I load its value in local store on start. Its default value is 1. 1 - should show it, 0 - shouldn't show it. When I start I show it by default, but when user reaches the last screen, I set value of guide key to 0. And the guide is just a list of scenes (react-native-router-flux). Is it correct or not? What are best practices? What library allows me to create connected screens with dot navigation?</p>