It's great to see this, thanks a lot. I hope Nostr clients will adopt this soon. Next one is to supporting multiple relays? Ps. I don't fully agree on the openness of Nostr vs API limitations, as Nostr relays also can limit their access, and a service such as Imgur can also decide to be fully free/open or not. so that is not in the protocol, but up to the provider. Anyhow, I hope we can see more abundance and sharing thanks to decentralization.