
QR.
Mint, print, route & observe dynamic QR via API
What it does
QR. is the developer API for dynamic QR codes. Mint over HTTP, export PNG/SVG/PDF, ship a short link on go.qrdot.dev — then change the destination anytime without reprinting. Full workflow, not just a PNG tool: mint → print → live link → route (device, geo, time, password gate, A/B) → observe (analytics + webhooks). Free tier includes the API. Docs & SDKs at qrdot.dev.
Does the same job
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- HQHTML QR Codes (Animated, Interactive, Programmable)2025 · qrbrd.com · ▲5
We just launched QRBRD, a QR code generator that creates live HTML5-based QR codes instead of traditional static images (PNG or SVG). Why might this interest you? Dynamic & Animated: Create QR codes that subtly animate or respond in real-time to data, significantly enhancing their visual appeal and user engagement. Fully Programmable: Leverage familiar web technologies (HTML, CSS, JavaScript) to easily design interactive, responsive QR codes Real-time Integration: Directly integrate QR codes with APIs or live data sources. Here’s a practical demo—a QR code adapting its visuals based on…


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OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com