What kind of domain are you in that allows you to migrate code to random operating systems with such ease? In any case, I would be skeptical if changing OSs mid

What kind of domain are you in that allows you to migrate code to random operating systems with such ease? In any case, I would be skeptical if changing OSs mid-business was the common case. More likely, I'd guess people choose the software stack before the hardware, based on their own experience, advice from others and/or other external factors (requirement to run existing applications, etc).