librepods

About this project

A Kotlin library that lets Android devices talk to AirPods directly, outside Apple's own software. It works by speaking the Bluetooth protocols the earbuds already use, exposing controls and status that are otherwise only reachable from Apple hardware. The interesting engineering is protocol reverse-engineering and reliability: Bluetooth connections drop, responses arrive out of order, and the library has to present a stable, usable interface on top of an unpredictable radio link. The result is cross-platform management of devices designed to work within one ecosystem.