@JeremyCherfas Heh, whoops. The keywords I’d use to find existing plugins would probably be something related to drafts, pre-review, early access… But I’m not a big WordPress user, so those might totally miss something obvious. >.<
I think Ghost does the UUID trick to let you share a draft with someone for early feedback. But I bet you need another hosting platform as much as you need a hole in the head at this point.