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Saturday, 7 November 2026 Reading Room

Tech

Show DEV: making a QR code from one photo (and a matching set for shops)

Hi DEV, we're the QRiQRa Team. We build qriqra.art, so this post is about our own project. We wanted a QR people would be happy to put front and center, so we made two things: QRi: upload one photo and get your own design QR code. It's free and there's no sign-up. QRa: the same design as a set for shops and spaces, so every menu, seat or room card matches. A question for anyone who has put QR…

dev.to ·

We haven't written up this one. Dev.to has the full story — the link below goes straight to it.

Read the original at dev.to →

More in Tech

Why Filled PDF Forms Open Blank in Some Viewers (and How to Fix It)

If you build document workflows, web upload portals, or automated billing pipelines, you have likely run into this frustrating bug: a user fills out a PDF form, submits it, but when an administrator…

  • PDF forms have separate Field Dictionary and Widget Annotation layers
  • Blank boxes occur when values written without valid appearance streams
  • Form flattening converts interactive PDFs to static content streams

·dev.to

I replaced a brand's Shopify app stack with code. Here's what it really costs

The usual Shopify answer to "can the store do X?" is "there's an app for that". Install it, pay monthly, live with its widget, its script weight and its idea of how your store should look.

  • Publisher replaces third-party Shopify apps with custom code solutions
  • Custom code eliminates app limitations, maintains cohesive design

·dev.to

I Run 4 Coding Agents at Once: My Full Orchestration Setup

I Run 4 Coding Agents at Once: My Full Orchestration Setup Watch the video version here: I Run 4 Coding Agents at Once: My Full Orchestration Setup (8 minutes, 9 seconds).

  • Four coding agents run simultaneously under strict supervision.
  • Roles (refactoring, testing, building) are prioritized over models.
  • Tasks are structured as packets with goal, context, steps, output format, and verification.

·dev.to

A 402 Front Door Is Not an Upstream

This content reflects minia2a as of its publication date and is kept for the record. Current model: x402 pay-per-call in USDC on Base only , 5 free trial calls per signed wallet , no credits and no…

  • Three third-party listings vanished overnight with active=0 status.
  • Marketplace's edge emitted a 402 challenge before forwarding.
  • Marketplace updated sweep to record removal reason in seller's view.

·dev.to

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