News for hackers. Stuff that matters.
Re:How did Google Talk change from a dream to a nightmare? by rident on Sunday February 11, 2018 @08:51AM (#16352653)
Matrix [1], mentioned elsewhere in these comments, looks interesting too and the Riot [2] app is similarly styled to Slack.

[1] https://matrix.org/

[2] https://riot.im/app/#/room/#matrix:matrix.org

Re:How did Google Talk change from a dream to a nightmare? by Spoom on Sunday February 11, 2018 @09:32AM (#16352821)
Matrix is basically open source Slack. It fixes a lot of the problems that IRC had, enabling continuous presence, central authentication, easy file transfer, bot integrations, and more. I really hope it catches on more.

Disclaimer: I help run a small Matrix network.