1. What is a database migration?
2. Describe what could be an alternative approach to discard an order completely in the case of insufficient stock for some articles.
3. Describe the conceptual difference between http4s and Akka-HTTP with regard to defining routes.
4. Name a reason why event-sourced data storage can scale better than traditional relational databases.
5. Implement a GET /articles/:name call with http4s and doobie.
6. Implement a GET /articles/:name call with Akka-HTTP and Akka Persistence.