The latest articles on DEV Community by MGoodies (@mgoodies_61ddc6dcca551492). https://dev.to/mgoodies_61ddc6dcca551492 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3875003%2F94243a4a-5365-4b4e-b6c9-2a6d8160ac7c.png https://dev.to/mgoodies_61ddc6dcca551492 en MGoodies Sun, 12 Apr 2026 16:53:07 +0000 https://dev.to/mgoodies_61ddc6dcca551492/judgemental-feline-1caf https://dev.to/mgoodies_61ddc6dcca551492/judgemental-feline-1caf <p><em>This is a submission for the <a href="https://dev.to/challenges/aprilfools-2026">DEV April Fools Challenge</a></em></p> <h2> What I Built </h2> <p>An app which take your thoughts as input and generate Cat image based on the sentiment present in text provided along with appropriate reply embed in photo itself.</p> <h2> Demo </h2> <p> <iframe src="https://www.youtube.com/embed/9rZHT2li5Rw"> </iframe> </p> <h2> Code </h2> <div class="ltag-github-readme-tag"> <div class="readme-overview"> <h2> <img src="https://assets.dev.to/assets/github-logo-5a155e1f9a670af7944dd5e12375bc76ed542ea80224905ecaf878b9157cdefc.svg" alt="GitHub logo"> <a href="https://github.com/mayank905" rel="noopener noreferrer"> mayank905 </a> / <a href="https://github.com/mayank905/UselessCat1" rel="noopener noreferrer"> UselessCat1 </a> </h2> <h3> A cat which react to text sentiment </h3> </div> <div class="ltag-github-body"> <div id="readme" class="md"> <div class="markdown-heading"> <h1 class="heading-element">UselessCat1</h1> </div> <p>A judgmental cat that reacts to your text using Google's Gemini AI.</p> <div class="markdown-heading"> <h2 class="heading-element">Quick Start</h2> </div> <div class="markdown-heading"> <h3 class="heading-element">Run the App</h3> </div> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto js-code-highlight"> <pre>python3 -m http.server 8000</pre> </div> <p>Then open <code>http://localhost:8000</code> in your browser.</p> <div class="markdown-heading"> <h3 class="heading-element">Setup Your API Key</h3> </div> <ul> <li>Visit <a href="https://aistudio.google.com/apikey" rel="nofollow noopener noreferrer">Google AI Studio</a> to get a free API key</li> <li>Open the app in your browser</li> <li>Paste your API key in the input field at the top</li> <li>Click "Save API Key"</li> <li>Start typing to see the cat's reactions!</li> </ul> <div class="markdown-heading"> <h2 class="heading-element">How It Works</h2> </div> <p>Type something in the textarea, and the judgmental cat will respond with a single emoji reaction based on your text sentiment.</p> <div class="markdown-heading"> <h2 class="heading-element"> ⚠️ Security Note</h2> </div> <ul> <li>Your API key is <strong>stored only in your browser's localStorage</strong> — never sent to GitHub or any server</li> <li>Each user must add their own API key</li> <li>The key persists in your browser until you clear localStorage</li> <li> <strong>Do NOT hardcode your key in the HTML</strong> — always use the input field</li> </ul> </div> </div> <br> <div class="gh-btn-container"><a class="gh-btn" href="https://github.com/mayank905/UselessCat1" rel="noopener noreferrer">View on GitHub</a></div> <br> </div> <br> <h2> How I Built It </h2> <ol> <li>Html, JavaScript for front end display, receiving input.</li> <li>Call to Api of cataas.com for cat image generation and embedding reply in image.</li> <li>Gemini Api call to gemini-2.5-flash model for sentiment analysis. </li> </ol> <h2> Prize Category </h2> <p>Best Google AI Usage</p> <p><a class="mentioned-user" href="https://dev.to/mgoodies_61ddc6dcca551492">@mgoodies_61ddc6dcca551492</a></p> <p>Thanks for using the app :)</p> devchallenge 418challenge showdev