Thank you for Pebble! It was my main Diabetes app for seeing the current blood glucose directly from my wrist until my Pebble 2 finally died a year ago. It was almost like magic and had a week of battery life.

The commercial matrix bridge is an excellent idea. I was able to get my homeserver running, but it is a hell of a job to get everything working. When it does work, oh boy, it again feels like magic!