/cc nostr:npub1s6z7hmmx2vud66f3utxd70qem8cwtggx0jgc7gh8pqwz2k8cltuqrdwk4c in the context of language filtered content, you can try out this relay (and use a client which only will show the content from this relay 🧐)
Discussion
Yes, nostr client devs can also use directly classification events (NIP-32 kind: 1985) and filter kind: 1
Example:
nak req -k 1985 -t L=app.nfrelay.language wss://nfrelay.app