HL7 and FHIR

Hi everyone!
I'm lurking on this list and I find the set of topics large and bewildering.

> HL7 v3 can not be fully implemented with the current state of Object
Databases.

I'm interested in HL7 and in particular FHIR.
FHIR has an RDF/JSONLD representation, and the schema is represented as
SHEX (amongst several other implementations, including JSON/JSON schema,
XML/RelaxNG etc).
I think this is a very interesting piece of work and I'm interested in
collaborations.

Cheers!