That makes me happy :)

I considered using NonEmptyList initially but along the way opted not to for an arbitrary reason. Someone mentioned :: might be a bit obscure for some people, would a type alias Nel help? Or do you think it is just fine as is?

Happy as well :)

@saraiva132 At least right now it is the standard representation in ZIO for a nonempty list. It has the advantage that it is actually a subtype of scala.collection.immutable.List, so anything you could do with a List you could do with it, plus being able to pattern match on it and know that it is nonempty which is quite natural with the :: operator that people are familiar with.

There has been some discussion of having more of a full fledged nonempty list representation but I think the concern has been that it moves us away from the standard library a bit in a way that is not really core to what we are trying to do, plus if you are going to do it right there are a lot of collection operations you would have to reimplement so I don't think it really makes sense.

Good to get that clarified! Extremely good catch and agreed.