Trademark law doesn’t work like that. You don’t get to license your trademark in the same way you get to license copyrighted works.
Otherwise, people could just say you can’t use their trademark in any document that says something negative about them, and then successfully sue the press and angry customers for complaining about them.
https://mastodon.redplanetlabs.com/timeline/local
and this from the gGmbH trademark policy:
> You may not use the Mastodon word mark, or any similar mark, in your domain name, unless you have written permission from Mastodon gGmbH.