I've done that before, and it can be nice, but I think the 'side project'/micropreneur/indie hacker space is more interesting. You only have so many hours of your time to sell, and if you're not working, you're not making money. Having a side project that makes a bit of cash even when you're asleep is a good feeling.
An exception might be if you have some super-deep expertise in a particular area, so that you're not really selling your time as a worker, but selling the ability to waltz in, look at something, do a few things that fix a problem someone has been stuck on. That kind of thing is pretty rare, though.
An exception might be if you have some super-deep expertise in a particular area, so that you're not really selling your time as a worker, but selling the ability to waltz in, look at something, do a few things that fix a problem someone has been stuck on. That kind of thing is pretty rare, though.