I'm sure this is what commenter meant. GadgetBridge even works without the need of accessing the internet, and open source app that gets regular updates and has

I'm sure this is what commenter meant. GadgetBridge even works without the need of accessing the internet, and open source app that gets regular updates and has a nightly build available. I get my wearables and others from their list of supported devices https://gadgetbridge.org/gadgets/ https://gadgetbridge.org/gadgets/