Expected a github repo link but instead it's closed source and it costs $9 and it apparently doesn't even allow you to set the noise cancellation level. So it's $9 for an app that has two buttons that send bluetooth packets and it also reads the battery level in some clearly standard way because Android and iOS both show that natively. There's probably less than a screen worth of code.
edit: looking at the tweet[1] it's an electron app... An electron mac app for $9. Let that sink in.
Honestly it feels really scummy to have reversed engineer (which itself is not an issue) the protocol, use a name way-too-similar too "Bose", closed source, and of course charging 9 bucks for a page of Javascript.
I have no issues with reverse engineering, especially in the name of interoperability (which is btw an exception from copyright laws in many countries), but the rest... yikes.
edit: looking at the tweet[1] it's an electron app... An electron mac app for $9. Let that sink in.
[1] https://twitter.com/DannyAziz97/status/1389482681608679424