I’m curious how this goes for you. I run all my machines on NixOS except my k8s cluster which is Talos for now. I have been thinking of switching to Nix for that too.

I just set up wanderer and workout-tracker. Along with installing gadgetbridge on my phone, I now have a completely self hosted fitness/workout stack with routes, equipment tracking, heatmaps, general health metrics like HRV, heart rate, etc through my Garmin watch, without having Garmin Connect installed. Awesome!

Its an American company so I suppose it is possible.