DVMs are not a useful concept.
Discussion
Can you kindly elaborate?
IMHO if you want to do a request-response situation, use REST. The nostr protocol is less than ideal, worse than REST, for this kind of communication. You can use your nostr identity, we have several standards for that over HTTP (blossom and NIP-98).
But also, DVMs are defined very generically, which means they don't interoperate without coming up with much more specific standards. And that is what nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6 is pushing for in https://github.com/nostr-protocol/nips/pull/1903
Thanks for the knowledge Mike!