If this were a default selection it would, for the sake of UX, need to come with some way of handling the fact that this is a paid service. Also clients would need to handle signing an NIP-42 auth event because that's how Satellite authenticates each uploads (that's a big difference from nostr.build) Otherwise it should be no problem to integrate with other clients. The server handles all the necessary NIP-94 hashing and returns those params to the client (sha256 hash, infohash, etc) which the client can *optionally* verify and sign. Working right now to get the API docs ready.