Well we started some small online-only (virtual) businesses in the country we are both from to make sure we could survive anywhere years before that (we had no clue where we would end up; it was basically just a coincidence). The plan was to live of that anyway once we left; I am however someone who cannot sit still, especially when I have no stress; I will start companies so that's what I do anyway, where ever I am. The computer example is what some of my friends are doing there; it's an option if shit hits the fan. We started in another, much smaller village (100 people) and that actually was in a place that was quite spartan; it was even more beautiful and cheaper to live, but we couldn't make a social life there. There were only artists who were there to make art; they didn't want to socialize, so we move to a random other village and that was a good one.
We did not save up; both of us being entrepreneurs, we just left. We sold the stuff we had left in NL after a few years later.