ZeroNet is not "portable"

While ZeroNet calling for backing up users.json, that file will not help you anything!
If you clear the data folder and than restore your backup you will need to open each and all sites individually to see them in UI.

Moving ZeroNet between computers is just as impossible, you should not move users.json to multiple computers and so **ZeroNet is not portable**.

Even if you able to restore your data folder, to add your sites to another node will again require you to open each site, one-by-one and click on the confirmation button to add the site.

ZeroNet is NOT serving the data folder until you don't open each of your site in UI, which is a disaster.