I have recently released the kinT replacement keyboard controller: https://twitter.com/zekjur/status/1281130647776608257
Why would you replace the controller? There are a couple of good reasons:
* to build or modify your own keyboard
* to work around bugs in the standard controller, like I did back in 2013: https://michael.stapelberg.ch/posts/2013-03-21-kinesis_custo...
* because you prefer to run open source software such as the QMK firmware (https://docs.qmk.fm/), even on your keyboard