https://www.youtube.com/watch?v=_rbF97T4480
supposedly there is a concept of ubiquitous language in this book.
They talk a bit about where-do-i-put-my-code
talk-domain-driven-design-and-hexagonal-architecture#service-objects-are-procedural1 Service objects are procedural talk-domain-driven-design-and-hexagonal-architecture#service-objects-are-procedural1
talk-domain-driven-design-and-hexagonal-architecture#guard-clauses-boundaries1 Guard clauses are like boundaries. We use them to get the stuff that happens after them to be more pure. (not a direct quote) talk-domain-driven-design-and-hexagonal-architecture#guard-clauses-boundaries1