Without making wiki farms. Basically how Wikipedia is like. If you don't understand what I am saying: For example, my Wikipedia user and mediawiki user is the same exact. If I get a notification on mediawiki and I amust on Wikipedia, a notification for it will show.
Topic on Project:Support desk
Probably something to do with Extension:OAuth and Extension:OAuthAuthentication.
AKlapper Should I do it with a wikifarm, or no?