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Newsletter platform Ghost adopts ActivityPub to ‘bring back the open web’
(www.theverge.com)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
I suspect it’s more complex than that. If they want any fediverse account to be able to subscribe, which they do, then how do they distribute content only to subscribers and not everyone on their instance?
Yea, that's the most straightforward for sure ... but requires leaving the fediverse. I suspect that there are plans/dreams of being fediverse "native" and enabling the full content/publication to be read from ones fediverse account.