I'm writing some ActivityPub stuff, and wanted to make sure to get RSS in, done right, etc. However i never use RSS so i have little insight to good/bad/irrelevant RSS impls.
Any wants or must-haves to an RSS implementation over a Fediverse instance?
My rough plan is to just include RSS in any places i expose JSON endpoints for data. Though i'm a bit undecided if there's any value in user activity stuff, like comments on an article, etc.
No. In fact, Mastodon has RSS feed support.
Downloading an XML file is dead simple. ActivityPub is vastly more complex.