[doublerebel]

Win 10 Pro, I was using an Ultrabook but just upgraded to a Surface Pro i7 16GB. The strength of machine depends on how complex your 3D models and build chain are, and whether you're running the emulator. The emulator needs 8GB RAM and two cores to itself. Visual Studio community edition with the occasional Sublime Text for quick refactors.

I have the hololens on about half the time. So I've spent a ton of time in it.

Yes surprisingly the Hololens is "just" an x86 Windows compile target. I've found a lot of software that "just works" as long as the UI isn't hardcoded.