Jitsi has been discussed here for about 5 years. Most questions on the subject were answered but many were not. Yes, we know that Jitsi has changed their terms.

Needless to say, today's social site users expect easy to navigate, seamless video of all kinds. If they don't find it, they will keep moving on to sites which do.

Users, however, have no idea how complicated coding is for internet video, audio and streaming... For example, the video engine here on UNA is based on FFmpeg - which has dozens of pages of just settings. The documentation would fill a large book.

Anyway, it appears that UNA did the heavy lifting and integrated Jitsi into their Messenger app. At present, it connects for video calls which are subject to a five minute limit. A link is provided to "Jitsi As a Service" or JAAS and there is an offer for a free "starter package". The free service is limited to a small group of users, of course. Which is much, much better than nothing.

So for self-hosters, the question is: How do the Jitsi required settings correspond or interface with those in the Messenger settings? I cannot get them to work. Jitsi states that: "All you need to do is to copy the integration code snippet and paste it into your app or website." 

I realize that for the full video services a dedicated server with ample resources is needed. So, I guess the free service is the iFrame variety. But how? And why does it seem so complicated?