and how to connect, for example, accounts(registration)
Apistos / napisannyi > connect to the site.
As payment different to connect
How to display realtime stuff
See the paragraph above...
I just saw how everything is done in modules using the CMS
Roughly the same is done in other places, there is in most cases no buttons "set to work"...
as everything is done in modules using the CMS and don't really believe that you can connect the libraries of different pieces in the files of the site(like office, for example) to make sure that everything worked
I usually have no "faith" connected with "faith" is better? :)