This looks very cool, and I have been casually looking into OCaml lately. Please excuse this naïve question, but what is the main value proposition here over p

This looks very cool, and I have been casually looking into OCaml lately. Please excuse this naïve question, but what is the main value proposition here over plain OCaml: Erlang/BEAM library ecosystem interop, or more something relating to high concurrency? It wasn’t really clear to me from the website/docs.