Interesting app, I've been using it here and there, mostly with a self-hosted IRC server. More or less a completely self-hosted chat system.

The UI is clean, and once it's up and running the experience is pretty smooth for users. However : - Quite a hassle to install and maintain your own IRC server ... - The server stores everything in memory. Pretty neat the first time you use it, but it tends to leak. - Your user DB is just a bunch of json files, with no extensibility built-in. It could really use a "users" plugin, that connects to an external auth system ...