From what I gather it's a server the serves pages that can be displayed well on phones. The notion of phone application makes me think of something else - but maybe I'm just old.
No, I do not deny that it needs a web server. It also needs no docker. Any old Apache or Nginx would do just as well.
Good to see Swiss made software on here. Greetings from Japan!
It is not a server that serves pages that can be displayed well on phones as written by GP.