To me, abstracting away the engine is not a goal. (Generally, it's pointless -- the various engines work in different ways and offer different features. While there's a bunch of stuff that widely common, that's also the stuff you don't really need to abstract.)

The point of transpiling is to allow you to pick a syntax independent of the engine. You still have to pick the engine and will deal with its peculiarities.

Today's post is about pipe syntax, which is syntax. Yesterday's was about trailing commas, which is syntax. I think there's an appetite for this.