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Thursday, 8 October 2026 Reading Room

Tech

Toshiba Starts Mass Production of TXZ+™ Family Entry-Class M4H Group, Standard Microcontrollers with Arm� Cortex�-M4 Core for System Control Applications

-Toshiba Electronic Devices & Storage Corporation ("Toshiba") has started mass production of the ...

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My barcode generator encoded whatever I gave it — the check digit is the scanner's only trust

Two months ago I added barcode symbologies to what had been a plain QR endpoint — code128, EAN-13, UPC-A. My test suite verified the images rendered and that my phone could decode them.

  • Author expanded QR code endpoint to support barcode symbologies
  • Partner scanned EAN-13 labels with handheld laser scanner, received invalid read error
  • Author implemented fix with rules for twelve-digit UPC-A codes and check digit validation

·dev.to

To Retry or Not to Retry: Safe Retry Logic with Exponential Backoff, Jitter and Idempotency Keys

Hồi trước team mình từng có một sự cố khá kinh điển: payment provider chập chờn khoảng 30 giây, và trong 30 giây đó service của bọn mình gửi 4 lần request charge tiền cho cùng một đơn hàng.

  • Determine if request is transient error or not before retrying
  • Idempotent requests (GET, PUT, DELETE) can be safely retried
  • POST requests lack idempotency, risking double processing on retry

·dev.to

Build Notes: A Browser-Local Image Compressor for Everyday Upload Problems

I built Quick Image Kit as a small browser-local image toolkit: quickimagekit.com The product is intentionally practical. Many people do not need a full photo editor.

  • Browser-local image compression tool designed for everyday upload problems
  • Handles personal data safely without uploading to remote servers
  • Provides clear, understandable interface for image resizing and compression

·dev.to

Custom Functions in CSS

CSS already has plenty of useful functions, like calc() , min() , max() , and clamp() . They let you build more flexible styles without repeating the same logic.

  • CSS already has functions like calc(), min(), max(), and clamp()
  • @function at-rule defines custom functions with parameters and results
  • Custom functions can accept multiple parameters, type declarations, and defaults

·dev.to

Building a Zero-Dependency MCP Server with 22 Security Layers in Go

The Model Context Protocol (MCP) is becoming the standard for AI-tool integration. Claude Desktop, Cursor, Windsurf — they all use it. The protocol is well-designed.

  • AegisGate MCP server offers 22 security layers with zero external Go dependencies.
  • Neural ML inference pipeline vendored directly to avoid supply chain attacks.
  • Supports JSON-RPC 2.0 and optional SSE streaming with session management.

·dev.to

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