Hello,
As far as I know there is currently no way to use your own Jitsi server/instance in this extension.
The only reason why I'm using Jitsi is so that I can self host it and provide the best confidentiality to my customers compared to other private and proprietary solutions such as Microsoft Teams.
Therefore, I've got my own Jitsi server that is hosted in my home and ciphered using TLS (HTTPS). It would be nice to integrate it in this app, rather than using default Jitsi servers, otherwise Jitsi has no point to me.
Thank you!