Adding Server-side rendering and AWS Cognito Identity to an Angular Single Page Application

I am learning how to do serverless single page applications in AWS for all the great scalable services. The white pager docs I am following is from here: https://docs.aws.amazon.com/whitepapers/latest/serverless-multi-tier-architectures-api-gateway-lambda/single-page-application.html

The link above has a diagram outlining the services needed. It is missing the two parts I need to figure out:

1. Where do I place my SSR / Angular Universal information/pages? Is there docs showing that in a diagram/white-paper like this?
2. How do I add in AWS Cognito as my identity manager as I don't need to add in third-party ones yet (like GitHub or Google)?

Thanks in advance and greatly looking forward to building a serverless, scalable app in AWS infrastructure with Angular.