So … you’ve got a Pi3 running as a Docker host with some services that you want your buddies to have access to. You could try and get them to SSH into your home network; just like you could type all your programs with a touchscreen. I’m going to use nGinx to setup a reverse-proxy from my real-Pi3 to various Docker containers based on URL rewriting. I’m doing something else (of course) I’m setting up (what I call) name-based-virtual-hosting.