If you’re looking for something fun to do on a more modern calculator, though, take a look at this build which implements ray tracing on a TI-84 Plus CE.

In an educational project with ethically questionable applications, [ChromaLock] has converted the ubiquitous TI-84 calculator into the ultimate cheating device. The foundation of this hack lies ...

To wit: A modder posted a YouTube video showing how they got ChatGPT running on a TI-84 calculator. Now, how in the world ...