“You need some level of built-in marketing you have to know how your app is going to get attention before you go build it.”

Know How Your App Will Get Attention Before You Build It

The 'build it and they will come' assumption kills indie apps. Before writing code, the question every solo developer should answer is: how will people discover this? The answer should be specific — an existing subreddit, a Facebook group, an annual conference, a YouTube channel, or an SEO angle. If there is no clear answer, that is a signal to keep searching for a better niche, not to build anyway.