@aldr Hello Christian. Thanks for this question. That would be of interest for me too.
@MarkusEicher create another account, on that instance, or toot directly at the person on the other instance. Also, there is cross posting, but I never looked into it. I would guess that would post to both instances. @aldr@fosstodon.org
@MarkusEicher Yeah, I don't think there is a way to do that, would be amazing if there is. let me know. @aldr@fosstodon.org