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Interview with Mauro, the 22-Year-Old Builder Behind a $160K/Month Fitness App

There is a particular kind of startup advice that sounds great until someone has to build the thing. “Follow your passion.” “Listen to users.” “Ship fast.” All technically fine. Also incomplete enough to produce a graveyard of features nobody uses. Mauro, the builder behind Symmetry, learned this the expensive way,
04 Nov 2026 8 min read
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