add(considered): vacation-rental.json has limited independent adoption

src/content/considered/vacation-rental-json.md

@@ -0,0 +1,25 @@
+---
+title: "/.well-known/vacation-rental.json"
+date: "2026-09-11"
+reason: too-early
+revisit: "Independent implementations publishing and consuming the format beyond the project's own reference implementation, with documented interoperability. Scope is not in doubt; broader adoption is the missing evidence."
+sources:
+  - title: "Well-Known URIs registry"
+    url: "https://www.iana.org/assignments/well-known-uris/well-known-uris.xhtml"
+    publisher: "IANA"
+  - title: "Well-Known Uniform Resource Identifiers (URIs)"
+    url: "https://www.rfc-editor.org/rfc/rfc8615.html"
+    publisher: "IETF"
+  - title: "Vacation Rental Protocol — reference implementation and adoption"
+    url: "https://vacationrentalprotocol.com/"
+    publisher: "Vacation Rental Protocol"
+  - title: "Villa Åkerlyckan — live host discovery document"
+    url: "https://villaakerlyckan.se/.well-known/vacation-rental.json"
+    publisher: "Villa Åkerlyckan"
+---
+
+`vacation-rental.json` was added to the IANA Well-Known URIs registry on 19 August 2026, as a **provisional** entry pointing at a v0.1 document on `vacationrentalprotocol.com` and naming an individual as change controller. The stated purpose is discovery and configuration for vacation-rental applications: a holiday-let site would publish the file so that booking software could find out how to talk to it.
+
+The scope test passes: this is a file an ordinary content origin would serve, like [`api-catalog`](/spec/well-known/api-catalog/) or [`nodeinfo`](/spec/well-known/nodeinfo/). There is also an implementation. The project documents a live reference implementation running on HemmaBo, and Villa Åkerlyckan's [discovery endpoint](https://villaakerlyckan.se/.well-known/vacation-rental.json) returned JSON when checked on 11 September 2026. That confirms publication of the file; it does not establish interoperability with independent booking software.
+
+The remaining reason for `too-early` is limited independent adoption. The project's own site invites implementers to become its second independent node, and we have not found evidence of broader publishing and consumption beyond that reference implementation. A provisional registration and a working example justify watching the format. Independent implementations demonstrating that they can exchange and use the document would justify revisiting a recommendation.