> Same here (actually had a voyage 200, but same same I guess).

Not the same, actually! Unlike the TI-83/84 series, the TI-89, -92, and Voyage-200 all used a 68000 CPU, with a completely different (and much better) operating system.

I wrote a web-based emulator for the Voyage-200 a few years ago: https://woofle.net/v200/