Independent software development has taught me that writing code is only one part of creating a product. A working application still needs a clear problem, understandable user experience, reliable infrastructure, testing, security and a realistic business model.
When I began turning ideas into projects, I often focused first on features. Over time, I learned to ask a different question: what is the simplest useful version of this idea? That change makes development more focused.
Working independently also means learning several disciplines at once. A developer may have to understand databases, APIs, deployment, SEO, customer communication and product decisions. My main lesson is to build smaller, learn from real users and improve deliberately.