I don't think it would be that difficult. I have a set of custom keyboard shortcuts on my main computer, which runs Linux. But when I have to use someone else's

I don't think it would be that difficult. I have a set of custom keyboard shortcuts on my main computer, which runs Linux. But when I have to use someone else's computer that runs Windows or OS X, I have no trouble instantaneously adapting to the shortcut setup on those OSes. And there are plenty of reports of people who primarily use Dvorak but can use Qwerty as well when necessary.