[ThaDood]

I actually had this idea when I worked for a local HIE. I just lacked the technical competency to make it real. I think this would be incredibly useful for the adoption of FHIR and also learning more about HL7. For security-minded folks this information could be a good tool for tuning DLP and other tools without using real patient data.

[ska]

I've done this sort of thing before with home-rolled tools, it easily becomes a time sink. Having a centralized shared effort seems like it could be really valuable.

One thing that is tricky is that you often needs signals and/or image data as well.