Most of the successful incumbents have figured out advertising that doesn't suck. Google AdWords and Facebook Flyers in their early stages were pretty unobtrus

Most of the successful incumbents have figured out advertising that doesn't suck. Google AdWords and Facebook Flyers in their early stages were pretty unobtrusive and clicked well with both the audience and advertisers. With that said, figuring out product-market fit as well as business model fit is going to take time and iteration, your best bet is to nail down some source of personal income, like revenue from contracting, and then use that cashflow to develop the hobby project.