Since this is F/OSS (MIT license) and uses a jabber server, there's all kinds of opportunities for growth and customization.
Home page: http://candy-chat.github.io/candy/ (demo on the home page)
Github home page: https://github.com/candy-chat/candy...ail&utm_term=daily&utm_campaign=explore-email
Candy plugin repository: http://github.com/candy-chat/candy-plugins
API documentation: http://candy-chat.github.io/candy/docs/
I'd even take an official addon, like elastic search & the resource manager