I literally just came from the Slack site to HN wondering if there was an opensource/selfhosting version of something like Slack. Well I guess that question is answered.
(I'll see myself to the door.)
Recently, the thing I've been focusing on lately with the app is bug fixes, small tweaks, and upgrading Rails. There's a lot of feature requests on the backburner, but I want the app to be extremely stable before going a mile wide and an inch deep.
That being said, "Let's Chat" looks like it is a great approach and I look forward to the progress that comes on it. The more open source solutions, the better.
I really like Kanban and I am sad to see it isn't up to rails 4.2 yet. Are you looking for more contributors?
If so, how could I contact you to resolve a few questions so I can get the current repo up and running to work on?