That's nothing new ;-) By the 80's, when I was developing courseware for Apple IIs I had 2 on my desk. The development environment (GPLE + somehting else I don't remember now) took very long to start and having a second computer to reboot every time I had a testable disk multiplied my productivity by more than 2.

I remember I used a row-optimize function (&ROP) to compress the program so that it would fit in the memory of the target machine (it had to fit under Take 1 Programmer's Toolkit)