have found a one line command for installing SuperModel from the cmd line ..

curl -sSL https://git.io/JSDOy | bash

It does nest the <system> within every other one in es_systems.cfg, so you will have to extract at least one for it to be found by retropie, also change <platform> to arcade for the games to be scraped properly:

43d2011c-3690-489f-aecf-e0fe7989b55d-image.png

first impressions are its kinda slow, however I must tweak various settings to get it optimized:

https://github.com/Retro-Devils/Sega-Model-3-PI-4