How to re-develop docker-jitsi-meet

Hi
I would like to use docker-jitsi-meet to develop some of the IM project features.But there are a few tweaks to the UI and data interface.I’ve deployed the project ( Quick start), and it’s ready to use.But I don’t know what to do next.For example, how to get IM and Jitsi to exchange user data or organizational data.
Thanks