Roasting without software

I have a potential bullet roaster asking me if they can run the roaster without using the software whatsoever. Is there anyone on here that can help me answer this question? He is not tech savvy and wants to know if he can run the roaster off the front panel without using a computer.

You absolutely can roast without connecting a computer. There are improvements and fixes to the roaster firmware that do require using RoastTime to install, so you would miss out on those. They seem to be minor changes, generally.

(In the same way that eg wifi routers or cars will have firmware updates available that most people ignore.)

Thank you so much. I was worried about being able to slow down the drum without the software, so I wanted to double check.