Hello baader meinhoff my old friend - while I’m familiar with the convention, I was just introduced formally to the phrase “functional core, imperative shell” the other day, and now here it is again.

“Learn to stop worrying and love the bomb” was definitely a process I had to go through moving from JavaScript to Typescript, but I do mostly agree with the author here wrt convention. Some things, like using type names as additional levels of context - UserUUID and ItemUUID each alias UUID, which in turn is just an alias for String - have occurred to me naturally, even.