Hi guys, I'm the creator of this little utility. Just noticed a flood of Stars on the repo, and thought it might be posted here.
Information on the chip identifiers was derived from the original closed source tool, and theiphonewiki (https://www.theiphonewiki.com/wiki/S8003 and https://www.theiphonewiki.com/wiki/S8000).
Motivation was basically to have an open source version of the tool, which didn't relay information back to a server or use advertising. Plus having people install unauthorised apps using a leaked/dodgy enterprise distribution certificate is a dangerous game; having an open source tool allows people in the know to install it on their own devices, safe in the knowledge what it's going to do.