[baz00]

Exactly that. "Build it and they will come" is one of those stories only the victors tell. My own approach was to tell everyone to go away who was asking stuff and finally give in to the most persistent person, then reluctantly build something and sell it to them because I couldn't be bothered to deal with it. This gets you a comfortable life but not rolling in cash and you get to retain your sanity, your dignity and your ethics.

[noduerme]

Same exact thing for me. Although I built lots of things (and no one came), I also heeded a piece of advice I got very early on, that your career is shaped as much by what jobs you refuse as by what jobs you take on. You are in charge of plotting the trajectory of your future CV and deciding the best use of your time. Steady and comfortable is great, and leaves time for side projects and the occasional moonshot.