could just have a simple nip that defines a few # params and to pass Accept header for raw data. Would be nice for backwards compatibility.

If we go the nip19 + nip94 route this would be more work and encrypted images wouldn’t work in most clients, this would at least have a clickable fallback that gives clients an upgrade path. We still care about that right? Or do we want broken images in DMs too.

The amount of work just to get uploadable images working in DMs is starting to get crazy otherwise:

nip04

nip19 (required)

nip94 (required, not even planning on implementing this in damus)

vs

nip04

nip?? (optional)