One related story: I did have the arguable pleasure to operate a stateful Websockets/HTTP2-heavy horizontally scaled “microservice” API with Rails and even more Ruby. It was originally deployed with Traefik. When it went from “beta” stage to having to handle heavier traffic consistently and reliably, Traefik did not cut it anymore and after a few rounds of evaluation we settled on HAProxy, which was never regretted IIRC.

I think you are just baiting now.