kepanoSep 18, 2025
Today in ransomware, Slack increases pricing by $195k with a week's notice for a non-profit that teaches teenagers how to code.
Show threadKnud JahnkeSep 18, 2025

@kepano

Are there more cases like this with #Slack? We have a 25k€/year plan and non-profit status and if this is systematic then I would initiate a #Mattermost installation _now_.

On a side note: Are self-hosted Mattermost instances free of license charges or do they still cost money?

Show thread4bz

@knud
From my understanding the only price you'll have with mattermost is the overhead of the server you run it on, whether that's in the cloud or local

@kepano

Sep 20, 2025 at 1:34pmWeb
Show threadKnud JahnkeSep 20, 2025

@4bz @kepano

As soon as you want single-signon capabilities one has to get a "Pro" subscription. Doesn't work with the "Team" version. We can't afford to manually manage 1000+ members.

Show thread4bzSep 20, 2025
@knud
Dang. I haven't used mattermost myself, but it was one of the contendors we were thinking of switching to so I didn't know that. Not even with OAuth2? The tutorial doesn't mention needing a pro version
@kepano
Show threadKnud JahnkeSep 20, 2025

@4bz @kepano

SSO only from Pro plan:

https://docs.mattermost.com/product-overview/plans.html

And one can only self-host Team version.

Mattermost Plans - Mattermost documentation

Show threadKnud JahnkeSep 20, 2025

@4bz @kepano

There are possibilities to link SSO to a GitLab instance and run SSO through them. There are some webpages that describe how that works.

Show thread4bzSep 20, 2025

@knud
What about rocket chat? Have you tried seeing if that could meet your needs?

@kepano

Show threadKnud JahnkeSep 20, 2025

@4bz @kepano

I think we have a messenger based on Rocket Chat inside Max Planck Society. Haven't used it yet - but I could test it there. Good idea.

Show thread4bzSep 20, 2025
@knud
If not I know someone will come in and sugest matrix 🤪
@kepano