Like, if you use the accepts package from npm, and you say: accepts(request).types(["application/ld+json"]) And then pass a request that uses: Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams" Then it will return null instead of a match.
If you have a fediverse account, you can quote this note from your own instance. Search https://bsky.brid.gy/convert/ap/at://did:plc:5w4eqcxzw5jv5qfnmzxcakfy/app.bsky.feed.post/3m6ea4sjh6s2b on your instance and quote it. (Note that quoting is not supported in Mastodon.)