Why are you trying to maintain an instance list? Just ask the user to input their instance URL. It will simplify the code and make it extensible to self-hosted instances and you don’t have to try to list every lemmy instance in existance.
Finally, I can create a true American city filled with parking garages everywhere and a desolate downtown filled with office towers that sits vacant in the evening and weekends.
Presumably only works on text/circles written with a mana pen and not ink though. So it has some limitations.
Is bluesky also activity pub?