Qr Haystack

realised in 2024

Have you ever searched for the proverbial needle in a haystack? Turn it into a bit of fun and play “Qr Haystack”!

How it works

  1. Print out the PDF and cut out the QR codes.
  2. Toss them all into a pile so your table looks like it’s never been tidied up.
  3. Grab your Android, iOS, or any other device with a camera and web browser. Open the webapp and …

Happy hunting!

From haystack to tech stack

The web app was built with Nuxt 3 and is statically generated. No server functions are required, so the application can be hosted in a resource-efficient way. Camera input is processed directly in the browser using the Node module html5-qrcode, which in turn uses the Zxing-js library. The codebase is written entirely in TypeScript.