You can update it to QMK, mods exist: https://hackaday.com/2021/08/05/kinesis-teensy-qmk-advantage-over-your-keyboard/ https://hackaday.com/2021/08/05/kinesis-t

You can update it to QMK, mods exist: https://hackaday.com/2021/08/05/kinesis-teensy-qmk-advantage-over-your-keyboard/ https://hackaday.com/2021/08/05/kinesis-teensy-qmk-advantage... There is also a successor available.