I spun up this small Docker container called Feediverse on my Synology NAS that grabs an RSS feed of my YouTube channels and link blog and posts to Mastodon each time a new item gets added. I have the Bazqux reader aggregate the four feeds into a single one.
All of the options are set in the environment criteria so you don’t need to map anything storage-wise. Just be sure to adjust the date variable each time you start the container up so it doesn’t post too much at once!
What the heck is RSS and what am I talking about? See my video on RSS here and get a list of all of my current feeds here.