“You need to solve a problem that you have, because when you're working nights and weekends you're hitting walls all the time. You need something to keep you going and solving your own problem is probably the best way to get past that block each time.”

Solve your own problem — it's the only fuel that survives nights and weekends

Framed not as a product axiom but as a stamina argument: solo founders quit when motivation runs out, and a problem you personally feel is the only thing that reliably refills the tank at 11pm on a Tuesday. Pick ideas by 'would I keep coding this when nothing is working' rather than TAM.