As a mac developer you never even see the watchOS nature of the touch bar. It could have been implemented as a raspberry pi running linux for all the mac develo

As a mac developer you never even see the watchOS nature of the touch bar. It could have been implemented as a raspberry pi running linux for all the mac developer cares, since it's "just" a framebuffer + multitouch input + probably something related to finger prints and secure enclaves. See https://developer.apple.com/reference/appkit/nstouchbar https://developer.apple.com/reference/appkit/nstouchbar