Truhe@Merovius Migration is mostly a manual thing with exporting and importing csv files. The only thing which can be done automatically is switching your followers to follow the new account and this only works with Mastodon followers, not with followers of other Fediverse software. I think, this part could break when the two servers do not federate (block or LIMITED_FEDERATION_MODE).
@feditips might help to clarify?
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