

You can log in to your lemm.ee account, settings and look for “Import/Export Settings”, then save the .json file to your device. Then log into your db0 account, go to the same Import/Export Settings and upload your .json file.
All of your saved posts, blocked people/ communities/instances will be transferred. If it doesn’t all show up immediately don’t be concerned, sometimes it takes a little while.
Yes it’s a handy feature. You should be up and running soon enough. :)