Have you tried to put together a local health agent?

Seems to make sense for maximum privacy. Put together a large enough model to answer health queries, have OCR and image recognition to read exams, give it web access to search for medication details and, of course, gather raw data from any devices you use to measure weight, heart rate, etc.

But that's just in theory and we all know things are hard to put together. In practice, have you had any experience getting anything like this working locally?