[Dendrite] A second-generation Matrix homeserver

Dendrite for YunoHost

Integration level Working status Maintenance status
Install Dendrite with YunoHost


Dendrite is a second-generation Matrix homeserver written in Go. It intends to provide an efficient, reliable and scalable alternative to Synapse:

  • Efficient: A small memory footprint with better baseline performance than an out-of-the-box Synapse.
  • Reliable: Aims* to implement the Matrix specification as written, using the same test suite as Synapse as well as a brand new Go test suite.
  • Scalable: can run on multiple machines and eventually scale to massive homeserver deployments.*
Memory footprint screenshot with a server connected to YunoHost's rooms and a couple of smaller rooms

Disclaimers / important information

:warning: :construction: * The upstream app is still in beta. Tread carefully.

Notably, even though most of Matrix’s core features are implemented, Dendrite is not considered a full one-to-one transliteration of Synapse yet. Search is a missing feature, for example. Follow-up with their issues tracker: Are We Synapse Yet?


  • Public registration can be opened and closed in the app config panel. Be wary of leaving it opened.


  • Dendrite does not implement secondary user registration schemes yet, so YunoHost users cannot be directly integrated at the moment. We do not know how the integration/merge with existing users will be done either, when the feature is implemented.

Documentation and resources

Developer info

Please send your pull request to the testing branch.

To try the testing branch, please proceed like that.

sudo yunohost app install https://github.com/YunoHost-Apps/dendrite_ynh/tree/testing --debug
sudo yunohost app upgrade dendrite -u https://github.com/YunoHost-Apps/dendrite_ynh/tree/testing --debug

More info regarding app packaging: https://yunohost.org/packaging_apps


Isn’t it this issue : Implement SSO for logins · Issue #1297 · matrix-org/dendrite · GitHub ?
(according to what I can read here synapse/sso.py at a00462dd9927558532b030593f8914ade53b7214 · matrix-org/synapse · GitHub when the SSO returns a new user, it is created, but I am not 100% sure).

I’ll be happy to try dendrite as soon as it can replace Synapse, but do you think there will be an automatic YunoHost migration possible ?
Or will we have to work with the future scripts provided with dendrite ?

very exciting! matrix seems like the ‘future’.

Looks like it. :slight_smile:

If Matrix provides the method, sure. Otherwise I just don’t feel like hacking my way into this.


good evening, is it possible to test Dendrite on a server where Synapse is already installed?, and is Mautrix_ WhatsApp compatible?.

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My installation failed! I’ll try and look into it further after work but here’s the log dump:


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Technically yes. However you won’t be able to have the same display name for both Synapse and Matrix servers. As in, if Synapse is installed on synapse.domain.tld and Dendrite on dendrite.domain.tld, you cannot have users on both servers with IDs like @user:domain.tld.

It should be. Not tested though.

Hum… I previously got that error because the Go version was too old, but here it’s the right one. Weird.
Can you try installing from the debug branch, so that the build command can be verbose (it may be VERY verbose, no worries). Install it with sudo yunohost app install https://github.com/YunoHost-Apps/dendrite_ynh/tree/debug -f

Then share the logs again. :wink:


Am I able to install the debug branch from the web UI? All good if not, I just have to use a different PC etc.

I used the “Install with Yunohost” button btw, should have mentioned that upfront

Yes, use the “custom app” field at the bottom of the catalog in the app installation screen. Paste the address there.

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False alarm, my server just ran out of memory :laughing: I bumped up it’s size and Dendrite installed fine :slight_smile:

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I’m also trying to install dendrite in a new yunohost 11 installation, in a small vps. I got the following log https://paste.yunohost.org/raw/ukaqokorun

Please let me know if I can provide more details.

Next update should fix the issue. If you are eager to test: sudo yunohost app install https://github.com/YunoHost-Apps/dendrite_ynh/tree/testing -f

@crodges it should be fixed now.

Thank you very much, @tituspijean! Much appreciated. I’m trying to install again right now.

An update, @tituspijean . It took a long time on “installing go 1.18” and failed again. Here’s the log https://paste.yunohost.org/raw/iqiwixiqum seems like the version is the upgraded one, 0.9.8~ynh1

Let me know if you need more data.

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