Ask HN: Great usages of JavaScript on the serverside, no nodeJS present

I'm writing OCaml bindings to JavaScriptCore and its great fun. I'm looking for neat usages of JS on the server side and not assuming that nodejs exists. For example: ReactJS works great, it renders on the serverside. Any other examples like that?

(And not just server side, since I can compile to ARM as well) https://github.com/fxfactorial/ocaml-javascriptcore