There is nothing in Pubky that can’t be implemented on Nostr. Many already are.

They use the Mainline DHT to signal where a user’s content resides. Nostr uses 10002’s spread to thousands of relays.

On Pubky, you need a semi-trusted homeserver that has complexity and can be easily censored. Nostr events can be transported via relays, or any other method like BLE meshes.

Otherwise, nothing changes.