If you are going through that much trouble you might as well get a WiFi scale, wear a tracker that has an API, etc. I’ve definitely thought about taking speech-to-text notes at work, nice to see somebody did it.
Instead of paying hundreds of dollars for all these gadgets that have to be charged and kept safe you can buy cheap variants and still have basically the same benefits.
A $150 scale is expensive but buys a very small amount of software development.