The common advice is to build something a few people really love, rather than something a lot of people just like. The logic is that it's easy to scale that up

The common advice is to build something a few people really love, rather than something a lot of people just like. The logic is that it's easy to scale that up and people are happier to pay. The other thing is to normally pick the harder option when confronted with two equal options. There's less competition there and higher demand. Most likely anything you work on now will look nothing like the final product, but the feedback from that will bring you there. Good luck!