We are working with HL7v2 ADT, FHIR seems like a very different more complex beast. Nice that they use JSON, but it reminds me a lot of those XML days with lots of namespaces, you always needed an editor.
There is a fhirbase/fhirbase Docker container that wasn't updated for 3 years, they focus on AidBox now, it's closed source, no public pricing.
There is even an ibmcom/ibm-fhir-server Docker container, 2 months old, but their project page https://ibm.github.io/FHIR is gone.
Then I came across this article from better.care CTO talking about how openEHR and FHIR should be used in a combined system, which seems to make sense. Product seems to be closed source, no public pricing, made in the EU. https://medium.com/@alastairallen/fhir-openehr-2022-53716f83...
There is ehrserver, open source, but not a single word about FHIR https://github.com/ppazos/cabolabs-ehrserver
So there is a lot happening, will check out Medplum, FHIR seems the future :-)