So someone dropped code to decrypt proprietary #ltspice models. That allows you to use them with #ngspice and #kicad

https://github.com/jtsylve/spice-crypt

GitHub - jtsylve/spice-crypt: Tool to decrypt encrypted LTSpice models

Tool to decrypt encrypted LTSpice models. Contribute to jtsylve/spice-crypt development by creating an account on GitHub.

GitHub