Scrollback, an open source alternative to Slack

Nurture your community with meaningful conversations.
Create rooms based on your interest or follow existing ones.
Share ideas, discuss realtime and redefine your online community experience with Scrollback.

via Scrollback, where communities hang out.

While relatively new and still adding features, Scrollback is the closest thing I’ve seen to to open source Slack. Once running it’s eady for folks to join and start participating right away. This is a project worth keeping an eye on. The code is on GitHub at   https://github.com/scrollback/scrollback.

Written mostly in Javascript it requires Node.js, Postgres, and Redis to run.