{
  "$id": "https://schema.nfh.global/AddOn/v2.0",
  "x-iri": "https://schema.nfh.global/AddOn/v2.0",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Add-on to a catalog resource",
  "oneOf": [
    {
      "$ref": "https://schema.nfh.global/Resource/v2.0/schema.json"
    },
    {
      "$ref": "https://schema.nfh.global/Offer/v2.0/schema.json"
    }
  ]
}