Can't you "just" implement frequent AGPS data uploading (like once a day) to Gadgetbridge
I could, if I had any time at all :) Others are welcome to contribute code though!
In an ideal world, we'd have a way to have JS running on the phone push data to the Bangle, but I think in the absence of that, the app mentioned above is really the way to go.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I think that app is merged now too.
I could, if I had any time at all :) Others are welcome to contribute code though!
In an ideal world, we'd have a way to have JS running on the phone push data to the Bangle, but I think in the absence of that, the app mentioned above is really the way to go.