[scrollaway]

I prefer matterbridge :) Supports more than IRC, and supports multiple gateways at once: https://github.com/42wim/matterbridge/

[suprememoocow]

Depending on the availability of a Bayeux client for Golang, it looks like something that could be integrated quite easily.

[scrollaway]

I don't know how Gitter support in matterbridge is implemented but it is great! Do try it out. I've been running a three-way discord+gitter+irc gateway for a long time.