Assembling a s*** ton of applications from any number of 3td party vendors into a single domain under  single signon is seriously complicated. I suppose it could be possible to curate a number of friendly apps but that part is unknowable.Sure it’s easy enough to put an HAproxy in front of traefik and sprinkle in some SSL and some sort of basic or other authorization, however, many apps have their own authentication… gitlab, mattermost(although there is a plugin for gitlab), wordpress, and something you might build.