Okay, tell me, Lets say I want to be an entreprenuer who can roughly learn any skill in tech (pretty young and ambitious) and he just wants to make enough money

Okay, tell me, Lets say I want to be an entreprenuer who can roughly learn any skill in tech (pretty young and ambitious) and he just wants to make enough money to live life nicely / travel the world (something like 60-80k USD are fine to me as I live in third world country and plan to travel mostly in cheap countries , I am a pretty frugal person. I want to work the most minimal amount of hours/work hours. Something like the 4 hour work week. What Idea would you want to suggest me as you are an engineer. Since, you are an engineer, and it seems obvious to you which startups are well positioned, It seems that you can reason out which trends in startups are well positioned for my specific use case. I will pay you 100$ of my first income from such a project if it really fulfills what you are saying.