Install ChatGPT on TI Graphing

I have a TI-OS graphing calculator on my desk, a bag of parts, and a YouTube tutorial that supposedly turns the device into a pocket-sized ChatGPT terminal. What I need now is an experienced hardware-meets-firmware problem-solver who can transform that theory into a working build... (Budget: $30 - $250 USD, Jobs: AI (Artificial Intelligence) HW/SW, Chatbot, Electronics, Embedded Systems, Firmware Development, LabVIEW, Microcontroller, Python)