@silverpill @erlend @cmdrmoto PLC today works with centralized servers for convenience, but it doesn't have to stay that way. the core of the method is self-certifying identities, and that info could be distributed any number of ways.
I gave a talk recently about PLC and ways to de-centralize it more while staying backwards compatible (video, transcript, slides):
https://fission.codes/blog/fission-tech-talks-bluesky-and-plc/