Two applications in the same cakephp 3 application folder

Question

I have an application that has two administrators: an admin for users of a registration system and another admin for system administrators.

I would like to have the following structure in cakephp3:

-> main folder (is the root of the site: www.meusite.com)

--> admin1 folder (registration system accessed by users)

--> admin2 folder (general administration system accessed by administrators)

I would like that when entering the site (www.meusite.com) is directed to the application of the sub-folder "admin1" (login screen). On the login screen, I will also make available a link to the administrators, ie access to the folder "admin2".

Of course, users of one application cannot log in to the other without being properly registered.

How can I make this work in cakephp 3?