Ves never put the software aspect of mechs in his eyes.
When he started out with developing variants, he always utilized the complete control system that came with the base model.
When he moved on to designing his own original mechs, he mostly pieced together the different software that came with with the component licenses. To get them to communicate and work together in a seamless fashion, he unified them into an off-the-shelf operation system that he randomly bought from the MTA.
The MTA developed these operating systems for maximum compatibility and minimal chances of bugs and errors. They'd been polished to such an insane degree that even the shabbiest heaps of junk on legs would be able to operate smoothly as long as its shambling components held up.
"A good operating system is like a very bright mind. The highest quality software can elevate the performance of the weakest mechs to a higher level."