Build vs Buy: Why the ‘Boring’ Stack Wins in the Age of AI

When you need feature flags in a .NET application, the answer is wonderfully boring. Install Microsoft.FeatureManagement, drop some flags into appsettings.json, and you're done. No debate, no reinvention, just functionality.

Yet, in the AI era, we face a new paradox. Code generation tools have made writing software easier than ever, which has inadvertently fueled a culture of compulsive building. Many developers fall into the trap of assuming that if they can build it, they should. But the most lucrative indie products rarely come from superior custom code; they come from superior judgment about where to draw the line between building and buying.

The opportunity cost of reinventing the wheel is rarely visible in the codebase, but it shows up immediately in your bank account and your sanity. Consider the developer who spends three months building a "better" authentication system, only to launch and find that Auth0 or Clerk solves the problem elegantly for a fraction of the cost. This isn't a failure of skill; it's a failure of strategy. The time spent custom-building a solved problem is time stolen from differentiating your core product.

Before writing a single line of custom logic, apply the "Boring Stack" filter. Ask three questions: Is there an open-source solution? Is there a SaaS product that covers 90% of the use case? If yes to either, the answer is almost always to use it. The only valid reason to build is when existing solutions fail to address your specific competitive advantage. If the feature you're building doesn't make your product uniquely better in the eyes of the customer, it's likely infrastructure, not value.

This discipline is what separates profitable indie makers from those who remain perpetually busy but broke. A product built on a foundation of off-the-shelf tools allows you to move faster, fix bugs sooner, and focus your engineering brainpower on the one thing that actually matters: the user experience. Your time is significantly more valuable than your ability to write boilerplate code. Embrace the boring. Buy what you can, use what exists, and only build what you must.