I have decided to try to create my own board game implementation. Probably going to use a REST-api to expose the contract. I'll figure out what database, communication, ... tools I'm going to use once I've got my business logic set. Now, to achieve not being dependent on tools/frameworks in my business layer, I need to abstract the, for example, persistence layer. This is where my dilemma comes in to play. I will probably use Spring Boot but I want it to stay away from my business logic. To a...
