Refactor includes a fundemental change of template logic.
UserParameteres file was deleted( making installation more simple), so you don't need upload on zabbix_host this file. All you need is to upload Template in GUI and enabling statistics in JVB
https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest.md
I new version also, we(me, and Arek R.) change curl to libcurl built-in zabbix library (webcurl) i items, and items and their values are preprocessed by this tool throught JSONPath.
Arek R also added some predefined Graphs (personally, i 've don't add this type of graphs, becouse i using graphana)
Arek R - Special thanks to you:)