The latest articles on DEV Community by Prom Sereyreaksa (@prom_sereyreaksa). https://dev.to/prom_sereyreaksa 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%2F3069007%2F5a71c245-3354-4b82-9ceb-f4b7fca385dc.jpg https://dev.to/prom_sereyreaksa en Prom Sereyreaksa Mon, 23 Mar 2026 17:09:19 +0000 https://dev.to/prom_sereyreaksa/im-building-a-free-open-source-screen-studio-alternative-for-windows-looking-for-contributors-34o8 https://dev.to/prom_sereyreaksa/im-building-a-free-open-source-screen-studio-alternative-for-windows-looking-for-contributors-34o8 <h1> Screen Studio is amazing… but it’s Mac only </h1> <p>On Windows, most screen recorders are either:</p> <ul> <li>too basic </li> <li>paid </li> <li>or require manual editing </li> </ul> <p>So I decided to build my own.</p> <h2> Introducing WinStudio </h2> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ffr9kfjmgjhjxhqrubz5n.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Ffr9kfjmgjhjxhqrubz5n.png" alt="WinStudio Preview" width="800" height="663"></a></p> <p><strong>WinStudio</strong> is a free and open source screen recording tool for Windows that focuses on one thing:</p> <blockquote> <p>Record → auto process → export<br><br> No timeline editing. No manual zooming.</p> </blockquote> <h2> What it does </h2> <ul> <li>Record a window or full screen </li> <li>Track cursor movement, clicks, and keyboard activity </li> <li>Automatically generate zoom effects based on interaction </li> <li>Keep zoom active while typing, dragging, or scrolling </li> <li>Smooth cursor movement for cleaner visuals </li> <li>Export directly to MP4 </li> </ul> <p>The goal is to make recording demos and tutorials effortless.</p> <h2> How it works (high level) </h2> <p>The app:</p> <ol> <li>Captures the selected window using FFmpeg </li> <li>Tracks cursor + input events using low-level hooks </li> <li>Maps interactions to video coordinates </li> <li>Generates zoom keyframes automatically </li> </ol> <p>Everything is processed after recording — no manual editing required.</p> <h2> Current progress </h2> <ul> <li>Recording pipeline works </li> <li>Cursor tracking is implemented </li> <li>Auto zoom logic is working </li> <li>Cursor smoothing is implemented </li> </ul> <h3> Current issue </h3> <p><strong>Cursor-to-video coordinate mismatch (zoom drifting issue)</strong></p> <p>The zoom sometimes shifts slightly away from the actual click position.<br><br> This is likely due to coordinate mapping differences between FFmpeg capture and cursor tracking.</p> <h2> Tech stack </h2> <ul> <li>WinUI 3 </li> <li>.NET 8 </li> <li>FFmpeg </li> </ul> <h2> Why this project exists </h2> <p>A lot of developers just want to:</p> <ul> <li>record demos </li> <li>show features </li> <li>share tutorials </li> </ul> <p>But editing zoom manually is painful.</p> <p>This project aims to remove that completely.</p> <h2> Looking for contributors </h2> <p>The project is still early, and I’d love help with:</p> <ul> <li>Fixing coordinate mapping issues </li> <li>Improving zoom logic </li> <li>Performance optimization </li> <li>UI/UX improvements </li> <li>Adding features (mic input, editor, etc.) </li> </ul> <p>If you're interested, check it out:</p> <p>👉 <a href="https://github.com/PromSereyreaksa/WinStudio" rel="noopener noreferrer">https://github.com/PromSereyreaksa/WinStudio</a></p> <h2> Final note </h2> <p>This is still a work in progress, but the core idea is already working.</p> <p>If you’ve ever wanted a <strong>Screen Studio-like tool on Windows</strong>, this might be it.</p> <p>Would love feedback or contributions.</p> Prom Sereyreaksa Thu, 19 Mar 2026 18:05:31 +0000 https://dev.to/prom_sereyreaksa/leakscope-supabase-security-scanner-that-finds-leaks-in-seconds-kk3 https://dev.to/prom_sereyreaksa/leakscope-supabase-security-scanner-that-finds-leaks-in-seconds-kk3 <h2> We Built LeakScope After Seeing the Same Supabase Leaks Everywhere </h2> <p>While pentesting Supabase-powered apps — especially fast-built MVPs using tools like Cursor, Lovable, and Bolt — we kept seeing the same thing:</p> <p>The same critical security issues. Over and over again.</p> <p>Leaked API keys sitting in frontend code.<br><br> Databases with no proper access control.<br><br> User data exposed with a simple ID change.</p> <p>These weren’t rare mistakes — they were patterns.</p> <p>One small misconfiguration, and your entire database could be public.</p> <p>We fixed these issues in our own projects first.<br><br> Then we realized: this isn’t just our problem — it’s everywhere.</p> <h2> Introducing LeakScope </h2> <p>👉 <a href="https://www.leakscope.tech/" rel="noopener noreferrer">https://www.leakscope.tech/</a></p> <p>LeakScope is a free security scanner for Supabase apps.</p> <p>Just paste your app URL and get a clear report in seconds.</p> <p>No login. No setup. No risk to your project.</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmnkmpg8x17z7ex0ven.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fyjmnkmpg8x17z7ex0ven.png" alt="LeakScope Preview" width="800" height="401"></a></p> <h2> What We Kept Finding </h2> <p>Across hundreds of real apps, the same issues showed up again and again:</p> <ul> <li>API keys exposed in public JavaScript </li> <li>Weak or missing access control (RLS) </li> <li>Users able to access other users’ data </li> <li>Sensitive data leaking in responses </li> </ul> <p>These are the kinds of issues that can quietly turn into major breaches.</p> <h2> Real Impact </h2> <p>Since launching in March 2026:</p> <ul> <li>1,600+ apps scanned </li> <li>11,000+ vulnerabilities found </li> </ul> <p>Many of them were serious enough to expose entire databases.</p> <h2> How It Works </h2> <p>LeakScope scans your app the same way an attacker would — from the outside.</p> <p>It looks at publicly accessible code and endpoints, and flags real risks with clear explanations so you know exactly what to fix.</p> <p>Everything is read-only, and nothing is stored.</p> <h2> Who This Is For </h2> <p>If you're:</p> <ul> <li>Building fast with Supabase </li> <li>Shipping MVPs with AI tools </li> <li>Not 100% confident about your security </li> </ul> <p>LeakScope gives you a quick safety check before things go wrong.</p> <h2> Try It </h2> <p>Go to <a href="https://www.leakscope.tech/" rel="noopener noreferrer">https://www.leakscope.tech/</a><br><br> Paste your app URL<br><br> Run a scan </p> <p>Takes less than a minute.</p> <p>We built LeakScope because we kept seeing the same problems everywhere.</p> <p>Now you can catch them before someone else does.</p> webdev security startup vibecoding