Hi August, I had to do exactly that. I initially was using a Windows 7 laptop that was a decade old and previously my daughters. I had to hack her password using a clever youtube post and then it only worked the once with E tube!
I found a refurb Acer with windows 10 (my wife needed an email/browser laptop anyway so that was the excuse to her!).
I use a chromebook which as you probably know is no good, the only other things lying around is an ipad.
Its not easy having di2, and I'm not sure its that much of a leap anyway....but that's another debate!