<ul data-eligibleForWebStory="true"><li>The author successfully built and tested an app in four days, emphasizing the importance of early validation of ideas.</li><li>Initially, the app was functional but had some inaccuracies, prompting the author to improve its recycling logic for consistency.</li><li>The shift towards combining image recognition with local logic enhanced the app's performance significantly.</li><li>The author highlights the value of rough prototypes in providing valuable insights compared to traditional documentation.</li></ul>

What a 4-Day App Build Reminded Me About Validating Early-Stage Ideas

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