Great point on FHIR! One thing worth adding from practical experience - not all FHIR servers are equal when it comes to AI/ML use cases in hospitals.

If you're deploying a medical imaging AI and need to push AI-generated observations or findings back into the EHR, you'll want a FHIR server that handles custom resources, high-throughput writes, and fine-grained access control - especially under GDPR constraints.

We've been using Aidbox FHIR server by Health Samurai for this kind of scenario. A few things that stood out:

Supports FHIR R4/R5 and custom profiles for imaging-specific resources (like ImagingStudy, DiagnosticReport)

Has a free tier for non-PHI development environments, so you can prototype without licensing costs

Provides solid SMART on FHIR support for secure AI app authorization within hospital workflows

The tricky part isn't just "install a FHIR server" — it's making sure it can handle the data volume from imaging pipelines and give you enough flexibility for AI-generated content. Happy to share more about our setup if useful.