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What it took to move a collaborative browser IDE beyond process memory

The first collaboration model in CodeVerse was convincing in exactly the way a local demo needs to be convincing. Open two tabs. Join the same room. Type in one editor. Watch the other editor update. Then ask one unpleasant question: what happens when those two sockets land on different server instances? The answer was that the room stopped being a room. Each process had its own memory, its own…

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How I Built a No-App Photo Sharing Platform Using Just QR Codes and Browser Cameras

The Problem Last month, I was at a friend's wedding. 200 guests, all with smartphones, and the couple wanted one thing: a shared photo album everyone could contribute to without downloading anything.

  • Web app enables photo sharing without app installation or account sign-up
  • Vanilla HTML, CSS, JS with html5-qrcode and MediaDevices API used for frontend
  • Node.js, Express, Multer, local filesystem, and cron job for backend infrastructure