I use jami but i dont think it fits your need for guess links.
Still leave it here just in case
Jami is a free/libre, end-to-end encrypted, and private communication software.
this post was submitted on 21 May 2025
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Jami is a stability and security nightmare
I wouldn't recommend it
Please tell us more about the actual security problems!
Care to expand on that? I am seriously considering that as part of my post-skype future.
Im using it for 3 months now and I did not notice any stability issue. One time I experienced a long delay in receiving a message.
Do you have any details on why its a security nightmare?
All communications are peer-to-peer and end-to-end encrypted.
You want either mattermost or the whole matrix stack (backend, plus element with voice/video calls).
Matrix/Element is more of a discord alternative, whereas mattermost tries to be more of a slack alternative, where it seems to have some calendar integrations.
I haven’t tried it myself but Mattermost offers most of what you’re looking for.
I think a gitlab install has most of mattermost inside it, and that means installation and updates are handled. I found the install of MatterMost via its devs used to be very naive, but the gitlab people did something right in vendoring it into their massive install. Gitlab-ce is bloated as heck, but it's fire-and-forget on the proper platform and may allow inter-org linking with or without the matter bridge thing (which itself affords some interoperability).
I think Mattermost is intended to be just that.
Huly is pretty amazing and has a self host option. It supports chats and video calls, team rooms, and has some cool integration for speech to text note taking. It also functions as a task tracker.
Under super active development right now so host only if you can deal with occasional breaking changes.
Considering
- nearly a
curl|shsetup - to run supply-chain risks
- of supply-chain risks
- for something without an immutable artefact and thus is its own supply-chain risk
It's already breaking ISO27002 in a few ways. I'm out.
Idk, I've heard things about HooliChat... Didn't their stream go down in the middle of a big title fight?
What's their revenue model? Thanks for sharing
They have a SaaS option as well, I'm guessing that's the main revenue plan.
Jit.si
- no enterprise packaging
- java?
I mean, that's two strikes, but I know the people whom 8x8 bought in like 2019 so there's hope. Like, wow, their video-conf app and service was astoundingly good.
Self hosting allows you to improve screen share framerate
We use this at work. Great for screen sharing and video chat
There is no way to do what teams does without significant infrastructure. Same with Slack and others.
If you want something that just gets close to the mark, look at Jitsi. It's about as complete as you could expect for just video/voice.
What you may not understand about conferencing platforms is that they are dozens of different hosted services working together to provide a cohesive UE. Video, SIP, VOIP, auth, identity...these are all separate services that are deployed as microservices to get what you get. If you find the bare minimum of the services you actually need, you can probably cobble something together, but it's not going to be a simple running of one service to get the same experience.
I'm hosting a matrix server with a TURN server and it's fairly easy to selfhost. This sounds exaggerated.
Do you need Element for that? Also is there a way to do guest access with a link?
You can allow guest accounts, although it’s disabled by default in synapse.
Call supports depends on the client you’re using. Element is usually ahead in features implementation, but you can get a list of clients and filter by features in the matrix website.
Also I’m not sure what the other person meant by easy to setup. Matrix servers are notoriously hard to setup when compared to anything most things you would find yourself selfhosting, specially with WebRTC/TURN. I think there’s an ansible playbook somewhere, but I never tried it.
That just covers voice/video. OP is asking about a lot more.
And chat. But yeah, no groupware.
Video+chat is all I'm wanting for the most part
If you don't mind seperated tools that do well in their own :
- Zulip for chat
- Jitsi for video meeting
- And whatever calendar you want for the calendar
Check out Big Blue Button - https://demo.bigbluebutton.org/
Their website talks all about using it for teaching students but it's really just like Jitsi with more features.
Big bluebutton is now integrated into Canvas, an open source learning management software (LMS) that every school I have went to has used.
Anyone know of something that isn't Nextcloud Chat?
Do you absolutely need to put ONE tag on it all and say this is it?
I have not tried Matrix yet but I hear it's a good replacement, fashioned more to the likes of Discord but I think it has everything you're looking for
No!
Jitsi
,but it is a pain in the ass to selfhost with good performance.
You can take a look here as well:
One alternative that is not on the awesome selfhosted list is: https://edumeet.org/
But it is even more of a PAIN to selfhost it.
I R fucking C. Who needs all the other garbage in teams?