So if any server admin types are interested, it should be pretty easy* to run an instance of my RSS to ActivityPub converter as a nice bonus for your users. It lets people with a login on your Mastodon or Hometown server create ActivityPub accounts that are mirrors of RSS feeds (process pictured in attachments). ONLY people with a login to your server can use it, because you don't want to moderate this service for randos

https://github.com/dariusk/rss-to-activitypub

*easy for linux server administration, huge lmao