Whelp looks like Bluesky finally crossed the line of "okay, when they do this, I'll set up a Bluesky account" https://bsky.social/about/blog/02-22-2024-open-social-web
So… maybe I'll do it now. IDK
I'm still pretty confused what a "PDS" is. Like exactly what the scope of its responsibilities are. Bluesky's page for the PDS server https://github.com/bluesky-social/pds explains poorly either what the software does or even what dependencies it has.
I guess I gotta go read a 18-month-old architecture document & hope it still describes reality.