In part of a Confluence space, I'm looking to design a forum with a specific setup in mind. Yes, I'm aware there are several forum apps for Confluence out there that can be hosted on any page, but I specifically need to have a forum where users would only be able to join the Forum with a specific link. (either a join link to the forum app, or a join link to that page)
With that latter in mind, I saw that Confluence is currently exploring a public link option (https://support.atlassian.com/confluence-cloud/docs/share-content-externally-with-public-links/), which could be an answer, but I'm wondering if the barrier I'm running into is that setting space/page permissions on Confluence can only be done if you can insert the emails of Confluence users. The problem is here is that the forum users would not have Confluence accounts.
Any advice you could offer would be appreciated.
--Nate