I didn't reverse-engineer the protocol for my blood pressure monitor in 24 hours

So I did something similar (well less cool), but as old Software devs start finding our bodies don’t work as well after a while we will see more and more of this sort of “taking control”

https://mikado-aktiia.readthedocs.io/en/latest/

That's very cool. I wonder if sniffing the Bluetooth connection directly might be easier than reading the PDF (although not because it's easy).

At least you have more than 24 hours to find out!