I use FitoTrack, which I found on FDroid. It’s reliant on third parties (Mastodon, etc) for sharing, but it does all that.

Thanks, looking into it.

It receives from Mastodon, but I’ve yet to have any of my wafrn posts show in Mastodon (or elsewhere on the Fediverse) despite being mutuals.

Guns don’t kill people. Cats do.

It has all of them, but it’s bare bones and doesn’t scale well. The instance where I have an account regularly falls over - sometimes for months at a time. Most of my friends there haven’t returned.

I don’t feel it’s currently a viable Facebook alternative, and it would need monumental amounts of work for it to become one.

It’s activitypub, but can be configured to also use AT as well.

Unfortunately, mostly broken at the moment. Normally it’s great, though.

If you’re using WordPress, the activitypub plugin does this also. It’s good to have choices.

If I removed ActivityPub from my blog, I’d get no readership whatsoever. It’s not like search works anymore.

Not really that hard to explain, unless I’m missing your point. Wafrn is a federated Tumblr-like platform that allows two-way interaction with Bluesky users (without the need for bridging).