According to the website[0] I’d need 20+ hrs idle time, video recording, Bluetooth, and GPS.
I’m being gently snarky, of course, but the goal shouldn’t be an MVP that nerds who are deeply into privacy or FOSS or hate Google can tolerate - it should be something that disinterested normies could seamlessly and happily use.
Well, it idles for about 22 hours, can record videos, does multi-constellation GNSS and both classic and LE Bluetooth.
The way to make disinterested normies able to use it is to have lots of nerds capable of fixing various papercuts themselves switch already and contribute rather than complain.