Faster Ways to Learn a New Codebase Than Reading It File by File

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A software developer argues that reading an unfamiliar codebase from top to bottom is the least effective way to understand it. Instead, the developer recommends first getting the code running locally, then tracing the path of a real user action through the system. Shipping a small, functional change early in the process helps build practical familiarity faster than passive reading. Asking questions openly, even basic ones, is also encouraged as a key part of onboarding. The advice stems from years of experience navigating large codebases and repeated unproductive first weeks on new projects.

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