Mapped FHIR Resources
We also developed an implementation guide with resources running in fhir2 module
https://github.com/openmrs/openmrs-contrib-fhir2-ig. Check through and see how resources and profiles are being developed following a given example here https://github.com/openmrs/openmrs-contrib-fhir2-ig/commit/4184cc797d50c9acccdf967fba3770974ae14c6f.