Business hours. Our main players have full time jobs so we barely get a chance to do sales

Even powerpoint

“In theory, if I was a unicorn in my craft (SWE) I should be able to create an application that gets alot of traffic and revenue.”

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I think your flaw lies in this assumption. The more important skill isn’t in building magical products, but in finding the right people to sell them to and selling them. I.e. finding product market fit. That’s business, not technical ability. So being a unicorn in your domain won’t help at all with this in my opinion. You might as well be trying to sell a powerpoint deck with all the magical features outlined and it’s still not easy. You might as well do that because it’s way faster to edit a powerpoint based on people’s feedback than to commit new code.