I just realized that #GhostCMS being compatible with #ActivityPub (and possibly #ATProtocol / #Bluesky at a later date) means that it will probably be possible to tag somebody directly in a newsletter post, via their #Mastodon or #Threads profile for instance.
Guess I won’t cross-post to Medium then. Shameless plug for #GhostCMS, and my blog which runs it and allows people to comment and boost via the Fediverse and Mastodon.