Why write the README before considering a project shipped?
Because a bad README makes a good project look unprofessional. A clear README explaining what it is, key features, the stack, and how to run it is part of finishing, not an optional extra.
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More FAQs in A Roadmap to Ship a Large React Project End to End
In order: optimize based on measurement, handle edge cases, add error boundaries, set production config like env vars and authorized domains, deploy, test the live app, write the README, and then monitor and iterate.
Because users get the production bundle, not the dev one, and a slow first load hurts engagement. Optimize based on Profiler measurements, not guesses, so the work actually improves the real user experience.
Because production-only issues like wrong env vars, unauthorized auth domains, and broken deep links only appear on the deployed app. Testing it catches these before users do, which is the point of a checklist.
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