My proposal does not have a real relation to the email domain, other than that the domain becomes free to consider other uses, and that that relates to an announcement that is already disruptive all by itself: SocialHub developer community: Reboot or Shutdown?
Proposal:
- Show independence as grassroots dev community → don’t be subdomain of SocialCG portal.
- Don’t host under a subdomain at all and use the short and descriptive
activitypub.eu - Configure a DNS redirect so the migration / repositioning causes minimal disruption.