I'm going to put this out there because I'm not sure where else to.

Recently I had the need for a better gitter-irc two-way gateway than gitter-irc-bot. Specifically, I wanted to be able to run multiple mirrors off a single bot/account. I started writing a multi-protocol gateway and the goal was to support slack, gitter, mattermost, irc and possibly matrix with a plugin API.

Here's the prototype: https://github.com/jleclanche/gitterway

It's in python. I started rewriting it in Go and then found out toml support in go was lacking, then I sort of gave up... if anyone's interested in picking it up, file an issue on there!