Comment by ezekg

I don't think that's an entirely accurate portrayal of the situation. His team has, AFIAK, removed the compilation step from their workflow (or are trying to), deciding to ship unadulterated ES6 to the browser, so they 1) removed TypeScript, and 2) removed Prettier. Both of these require a build/compilation step, which they're moving away from. That's literally it.

The Turbo library is not consumed like a normal package anyways, so these types were only used internally. Nobody relies on these types.

It's their library. And others have done the same recently.