With completely wireless earbuds, the rule is: when the battery fails, they have to be disposed of. Not so with the Fairbuds, that allow you to replace batteries in just a few seconds. Combined with a repairable design, the earbuds should therefore have an extremely long lifetime.
Their website has a page that says they “embrace open source”
I couldn’t find the source code specifically for their app. Maybe this?
https://github.com/fairphone/android_device_fairphone_FP5
Honestly have no clue what I’m looking at there. There seems to be no iOS equivalent, so who knows.
Otherwise, their app permissions seem pretty reasonable:
• discover and pair nearby Bluetooth devices
• Access Bluetooth settings
• Pair with Bluetooth devices
• connect to paired Bluetooth devices
But yeah, if no open source, that can definitely be a deal-breaker for the market they seem to be targeting.
This seems like part of their android os for FP5, TWRP is a common open source android recovery image: https://en.m.wikipedia.org/wiki/TWRP_(software)
Probably a attempt to open source the component they can, in the release note, they list the components that are not working.