KnightOS is a third-party operating system for TI calculators. It provides a passable Unix-like system for calculators. KnightOS is built on top of the KnightOS kernel - this repository is the official userspace. KnightOS runs on the following calculators.
KnightOS is an open-source operating system for Texas Instruments calculators. It's freely available in both source and binary forms under the terms of the MIT license. With KnightOS, you get an unmatched level of freedom and customization over your calculator.