I'm moving my personal note-taking app from my instance of #Dropserver that is in the public cloud to one hosted in an instance inside my home that is hidden from the internet. To do that I just created a new appspace in the new instance, then I paused the old appspace and made a backup (see UI in image below). In the new instance I hit "Restore" and pointed to the downloaded file. Voila, all my notes are in my new instance!
I took great pains to ensure that appspaces can be picked up and moved, so doing it myself with data that is critical to me personally and having it work so well is very satisfying!