We added a couple of new chapters to the extra credit section of the guide. A good introduction of AWS AppSync, for anybody that’s looking to learn about it. https://serverless-stack.com/chapters/what-is-aws-appsync.html We are also starting a new section on how to handle authentication in serverless. With an overview chapter: https://serverless-stack.com/chapters/how-to-add-authentication-to-a-serverless-app.html And one on using Cognito in SST and connecting to it in a React app. https://serverless-stack.com/chapters/using-cognito-to-add-authentication-to-a-serverless-app.html We also have a example repo to go with it: https://github.com/serverless-stack/serverless-stack/tree/master/examples/react-app-auth-cognito We’ll be covering a bunch of other auth providers in the weeks to come!

I'm the little link boy - I think the 3rd link is the same as the 2nd link

lol!