Earlier quoted context omitted.
Yes. It’s relatively straightforward to work on a fixer upper house during which time you are drawing no salary relative to that, and then you can turn around and sell it (or just enjoy being in a nice house which otherwise would have cost hundreds of thousands).
But if you're not drawing a salary/wages, how the heck are you buying groceries or paying the mortgage? You'd need to turn houses over very quickly/regularly for this to work...? I'm not debating that tradespeople can make good money - that absolutely can. But, that's the exception not the norm... The average plumber or electrician in the US earns about $65k/year... that's about 2/3 (or less) of an entry level progra…
(I know some people who basically do this - buy a non-habitable house, do a few weeks of work to make it habitable, live in it 2 years, do an entire house remodel themselves, then resell it. Up to $500,000 of profit is tax free.)
$200k mid career developer jobs are very hard to find and basically don’t exist outside of a few major cities.