As Firefish, my fediverse instance software, had gone into maintenance mode and wouldn't be updated in the future, I needed to move off of it. I settled on Mastodon for my new instance. I set up a new account for myself and added the old account as an alias there, which is required to migrate to it. In essence, the new account must pre-approve the migration by adding this alias. This is to prevent migrating to the wrong account by accident. After doing this, I tried starting the migration fro...
