Self-Hosted Main

I would like to build a very simple self hosted website that when users navigate to, they are greeted with a login page. Once logged in they see a list of applications available to them. What they see would be custom to their login. This way I can give one set of friends access to one set of applications that I self host, family access to another set and a different group of friends something else. What program would you recommend to do this?

At first I was thinking WordPress but it seems to require paid plugins to do this. Then I found Organizr but it seems to be too much for my user base. I'm looking for dead simple. Login see a list of icons in a nice format. Click icon. Takes you to the service I am self hosting. I feel like this shouldn't be that hard. Am I missing something? Bonus points if it can integrate with Plex's login system so they don't have to make another account.