I came across Perkeep[1] project today. I know some other self-hosted solutions like Rocket chat[2](Slack alternative), Redmine[3](Project management) etc. Curious what other self-hosted are there and which one you are using?[1]: https://github.com/perkeep/perkeep
[2]: https://github.com/RocketChat/Rocket.Chat
[3]: http://www.redmine.org/