Selfhosted

Hello everyone!

After searching and searching for a solution for my issue I think I may have stumbled upon something. I have been trying to get my matrix server up and running so that I can move on to the next project.

The issue I was running into was mobile element Client users could not join group calls. Mobile Element users need to use Element X, however Element X users cannot join my Dendrite server because I do not have sliding sync proxy set up.

I have heard that synapse has sliding sync already enabled but I have not been able to tackle synapse. Dendrite has just worked out of the box for me besides this one issue.

Originally when I was tackling the issue of sliding sync I had read somewhere that it was not compatible with dendrite. So that had crushed my hopes and dreams of using dendrite and I hadn't looked back ever since.... Until now.

I went to the official matrix sliding sync github page and wouldn't you know it, there is a note that says:

NOTE: The proxy works fine with Dendrite and Synapse, but it doesn't work well with Conduit due to spec violations in the state of a room in /sync. Running the proxy with Conduit will cause more expired connections (HTTP 400s) when room state changes, and log lines like WRN Accumulator.filterToNewTimelineEvents: seen the same event ID twice, ignoring.

So now I am trying to set this up with my current matrix dendrite docker image. However I don't really understand how to follow this guide to make it talk to my pre existing containers.

Thank you all for your time!

My system software:

Ubuntu 20.04 with CasaOS and docker

The guide and documentation I followed for setting up matrix dendrite:

https://www.youtube.com/watch?v=TFDFR6EBG3k

https://wiki.opensourceisawesome.com/books/setup-matrix-chat/page/install-matrix-using-the-dendrite-server_

Official sliding sync documentation that I am trying to setup:

https://github.com/matrix-org/sliding-sync

Edit: I was able to get sliding sync to work using the compose file that samsy provided below! I then added the sliding sync container to the dendrite network and now I can sign in with element x and achildichat next with no "this server doesn't support sliding sync" error!

However now these clients do not show my chats, the clients can create rooms however when backing out I still get an empty chat page for some reason.

Edit 2: I have gotten sliding sync working with dendrite! My compose url environment variable was pointing to my sliding sync url and not my matrix server url! Thank you everyone!!