TI-Nspire CX II Custom Keyboard Remap

The TI-Nspire CX II CAS arranges its alphabet keys alphabetically, which is awkward for anyone who types by muscle memory on QWERTY. This project changes the characters delivered by those keys without changing the calculator's other input behavior.

A resident Ndless hook intercepts the operating system event queue and rewrites only A-Z and a-z key events. Modifier combinations and non-letter keys pass through unchanged, and installation is gated by checks for the supported calculator OS and function fingerprint.

The current build deliberately targets TI-Nspire CX II CAS OS 6.2.0.333. A probe mode prints the mapping on-device before installation, keeping the experiment testable and its compatibility limits explicit.