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So I'm working my way through <https://ktor.io/docs/interactive-website-add-persistence.html#add_article|this tutorial> and I think I understand the difference between DAO and DSL. DAO uses Entities and is a bit simpler and more abstracted away from the actual SQL, and the DSL is more like SQL, using methods like 'insert' and 'update'. What I don't understand is why the tutorial is using the DSL syntax, but creating a DAO file to hold it. Is the term DAO overloaded here, or am I missing something? GPT says a project using DSL ought to have 'repositories' instead.