TILP, GFM and TI-Libs
TILP (formerly GtkTiLink) can transfer data between Texas Instruments scientific calculators and a computer.
It works with all link cables (parallel, serial, Black/Gray/Silver/Direct Link) and it supports the TI-Z80 series (73..86), the TI-68k series (89, 92+, V200, 89T) and the Nspire series (Nspire Clickpad / Touchpad / CX, both CAS and non-CAS).
Source code: https://github.com/debrouxl/tilibs and https://github.com/debrouxl/tilp_and_gfm
These packages are always the latest revision from git, they may not be as stable (but more up-to-date) as the packages in home:malcolmlewis.