Need help with multiple streaming / jibri


I have a platform with a communication component for which I use dockerized jitsi and it works pretty well, except when it comes to webinars, where I am currently limited to a single stream at a time with jibri. I found several discussions on the forum but I would like to know it there is one right, professional, scalable way of doing it, so I have two questions:
1 - How does the official jitsi meet handles unlimited streams? Do they auto-scale jibris? Do they have a certain amounts of instances ready to fire at any time?
2 - Is anybody available to contract for me to set it up?