Indeed, in my case, I've got my basic toolchain installed on more than a half dozen computers. At work, I do hardware related R&D, so I need my tools at multiple workstations in the lab. At home, a work-at-home computer and a personal computer.
If I share something, my victims need to install their own copy of the tools.
Then there's the whole world of code running on microcontrollers, which is how I prototype hardware gadgets, also in multiple locations.
There is one piece of domain specific software that I use, and that is tied to a single computer, but I only use it sporadically when I need to do that particular kind of design work.
I appreciate Wolfram's vision for a universal computing platform, but aside from the problem of getting everybody to agree on what that should look like, it's not a realistic dream unless it addresses things like economics and logistics.