mastodon.world is one of the many independent Mastodon servers you can use to participate in the fediverse.
Generic Mastodon server for anyone to use.

Server stats:

8.9K
active users

Juhis

@cory @convexer

If those custom things are not in every post, I would probably add some kind of a flag to the posts that would cause the RSS to render differently, adding an explanation of why this particular post is best viewed in the site.