It'd be great to be able to support the following features outlined in the JSON:API v1.1 spec: - Top-level `describedby` link ([spec](https://jsonapi.org/format/1.1/#document-top-level)) - Link objects ([spec](https://jsonapi.org/format/1.1/#auto-id--link-objects)) - JSON:API object `ext` and `profile` members ([spec](https://jsonapi.org/format/1.1/#document-jsonapi-object)) - @-members ([spec](https://jsonapi.org/format/1.1/#document-member-names-at-members)) - Extension members ([spec](https://jsonapi.org/format/1.1/#extension-members)) - Error object `source.header` ([spec](https://jsonapi.org/format/1.1/#error-objects))
