I've updated webcode so that owners of endpoints can configure "public livecoding", which allows any logged in user to grab the public traffic to that endpoint (well, each logged in user gets their own fingerprinted endpoint, so traffix is not mixed between users). So finally I can write a public demo of livecoding. This article is maybe too long but its how to implement a webserver including: serving and responding to web forms, serving a dynamic image (e.g. dashboard), and streamed responses.
webcode offers a fairly low level HTTP interface so achieving most of those things requires a fair amount of HTTP knowledge, hence I thought I would just write it up.
https://observablehq.com/@endpointservices/livecode