I’m going to attempt to explain in general terms how I think about an #ActivityPub bridge.
I’m over on Bluesky. I see this interesting ActivityPub account coop-AT-cosocial-dot-ca. I’d like to follow it!
It has open follows, so the bridge subscribes to that account on my behalf. It’s kind of like a “bridge instance”.
Depending on how the bridge is implemented, maybe you see boris-bluesky-AT-bridge-instance