yes. if only there were an easy answer.
i think the best one is to create a good product for which there is a need, not necessarily an innovative one, and set it up to autopilot mode similar to what was discussed in the 4HWW. except more tech-oriented. as an example, you don't need many customers to pay you for shared hosting to have a decent level of income.
if you don't have much in the way of personal wants/needs, it isn't really that tough to get by in the 20k/yr range.
unfortunately for me, some of my hobbies are expensive, so i have to work a real job. for now, at least.