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A comment on Spectrum is joining GitHub. Parent comment

Re:Spectrum is joining GitHub by rst on Friday November 30, 2018 @01:28PM (#18571282)
Depending on definitions, you could also include rocket.chat, and Zulip (open core). There's a bunch.

As to federation, the ActivityPub protocol underlying Mastodon, and a bunch of other projects, was originally designed to support it -- but the devil's in the details, particularly regarding finding a common data model (do you have topics within channels, like Zulip does? what do you support within a channel beyond plain text messages? etc)

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Re:Spectrum is joining GitHub by pritambaral on Friday November 30, 2018 @01:45PM (#18571433)
> Zulip (open core)

Isn't Zulip fully open source? That's what they say on their site: https://zulipchat.com/

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Re:Spectrum is joining GitHub by rishig on Friday November 30, 2018 @01:50PM (#18571484)
yup, Zulip is fully open source. I believe Mattermost is actually open core.
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Re:Spectrum is joining GitHub by rst on Friday November 30, 2018 @11:16PM (#18575118)
Apparently so. I misread the website; their "Enterprise" support package offers better support, but no extra features.
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