Useful if a migration failed and you want to have a bit more manual control
There are some risks that come with doing an account migration. (Can view them here) and that the creator or host of this migration tool is not liable and will not be able to help you in the event something goes wrong. I also have read over the extended information from PDS MOOver about account migrations.
You can now select to add a new Rotation Key during migration and sign up for PDS MOOver's free backup service. With a Rotation Key and backups if your new PDS ever goes down you can recover your account and it's data.
Warning: This is the only time we will show you your private rotation key. Save it in a secure place. If you lose it, you may not be able to recover your account in the event of a PDS failure or hijack.