I decided to try to make a multiplayer game in Griffpatch's single player Paper minecraft world. how it works is you use the paper minecraft code in the latest remix of this (however if you are the first one u remix this since there are no remixes yet), start getting recourses, do whatever, then set up a chest were you would put all your items. then, once you emptied all of your things into the chest, you would press "o" which would open the save game menu, copy the code, then remix the latest remix and change the code to that.
You will start 2 chunks to the east(right) past a destroyed village. You can 1 continue the expedition and gather resources, put half in my chest 2. Go home and put my stuff into my chest then do your own thing