Zeus specifically could use something simpler like:

GitHub

A method for transferring HTTP communication over Nostr direct-messages by oren-z0 · Pull Request #1276 · nostr-protocol/nips

Example use case: https://v.nostr.build/VAREX7f6XB8sTPQr.mp4 (and here is the old video that was implemented with NIP-04 direct-messages not follow...

There is not a lot of communication going between the Zeus app and the LND on my home computer. It’s not video-streaming, it’s just some requests and responses that could be wrapped similar to Nostr DMs.