I haven't made any progress on this myself. However, the Gadgetbridge team passed by and started doing https://codeberg.org/Freeyourgadget/Gadgetbridge/pulls/2953, which hopefully helps.
@TheLastProject started
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 haven't made any progress on this myself. However, the Gadgetbridge team passed by and started doing https://codeberg.org/Freeyourgadget/Gadgetbridge/pulls/2953, which hopefully helps.