Failover on jitsi meet shards

Hi folks,
My jitsi server with 4 JVBs is working very well.
However I must have them working in 2 seperated locations.
According to search on the web and the community, I found a video just shows general topology.
But I need more in terms of configuration
For example, what configurations should be done and in where?
You have any suggestions?

Thank you