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by pr3dr49 3049 days ago
You may explore Mattermost [1] if hosting on your own servers is a requirement. It is very easy to deploy and I found it very satisfactory, albeit testing with a relatively small team. I imagine scaling up would work. It ties in nicely with GitLab, which is another neat product for those who must not or wish not outsource information.

[1] https://about.mattermost.com/
2 comments
rident 3049 days ago
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

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Spoom 3049 days ago
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.

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Freak_NL 3049 days ago
Yeah, the GitLab omnibus package comes with MatterMost bundled. It's a really nice solution for self-hosted chat.
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