I love this post. I'm a big believer that one and two man startups will continue to build more and more impressive products. My one man startup 42papers.com (A community for top trending papers in CS/DL/ML) has the following stack.

  1. Firebase Hosting for the React frontend
  2. GraphJin (Automatic GraphQL to SQL Engine) on App Engine for the backend
  3. Cloud SQL Postgres for DB

https://github.com/dosco/graphjin