> > I don't understand how none of the alternatives really embrace WinterTC

> You provide handlers that fulfil requests from the system.

As I said previously, though I wish they were, such handlers are not part of WinterTC.

And then again, how those handlers are registered is also not part of WinterTC, which I also wish it were.

> APIs like that leak implementation details

How?

Almost all runtimes, like Bunny Edge Scripting, Cloudflare Workers, Deno, Bun, etc. use the same basic signature for the handler:

(request: Request) => Promise<Response>

Only how you register said handler is, unfortunately, different for each runtime.