Looking for mybb new addon?

What exactly would you want it to do? Lol

 

There are like... no adding for MyBB. Can you explain what you want?

 

You can't already do this by modifying the landing page. I do it on my forums.

 

domain.tld/portal.php assuming your mybb directory is at your website root. For apache, add
DirectoryIndex portal.php
to your htaccess file. I can't remember how to do it in nginx off the top of my head.