@mathias Eurosky is a tech provider that currently offers account hosting for ATProto accounts. So you can have a Eurosky account and then use apps like Bluesky, Flashes, Tangled, etc. So the Eurosky PDS doesn't rely on Bluesky (the app). Bluesky runs a relay and an app view for their app. And they ingest content from the Eurosky PDS. So in a sense they depend on Eurosky :)