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.
FairPhone’s is not really the open source crowd though?
They proclaim to value open source and it seems they’ve tried to do some stuff in the past. I think software freedom is a natural conclusion of hardware repairability but it seems their priority is instead on being green and workers up the chain getting a fair pay.