Would this work for the same home network and not so much the same machine due to them not actually being on the same machine? 
I’m assuming this has something to do with how I fix this?
" You cannot use ./discourse-setup to set up Discourse if another server is using port 80 or 443. You will need to copy and edit samples/standalone.yml with your favorite text editor."
That’s from the guide provided. Since I’m running Nginx on that different server that is.