Making old hardware work with new software and vice-versa has always felt like the true "hacker spirit"; more so when source code isn't even needed, contrary to what many FOSS advocates think. Much like how you don't need the original design drawings and such to fix physical machines, but just need to understand what's wrong and how to correct it. This is also near right-to-repair.
It's also worth noting that "ezloader" USB interface was later acquired by Cypress and became the infamous FX2/FX2LP MCUs that popularised a lot of USB devices, including logic analysers.
(I usually do more of the latter, but the same skills are used.)