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Saturday, 19 September 2026 Reading Room

Tech

Building a Zero-Lag Client-Side Python Visualizer with Pyodide & WebAssembly

Understanding code execution, call stacks, and pointer mutations can be tricky—especially when debugging complex algorithms, recursion, or data structures like linked lists and trees. To solve this without server latency, I built PyViz , a zero-lag, completely in-browser python code visualizer powered by WebAssembly (Pyodide). Why PyViz? Most online execution visualizers rely on backend servers…

dev.to ·

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The CancellationToken That Never Propagated: A Subtle ASP.NET Core Timeout Bug I Missed in Code Review

The CancellationToken That Never Propagated: A Subtle ASP.NET Core Timeout Bug I Missed in Code Review In the early stages of my career, I believed that if an HTTP request had a timeout set, the…

  • ASP.NET Core bug caused application instability under heavy load
  • Missing cancellation propagation to background tasks led to issues
  • Fix involved propagating CancellationToken to cancel background work

·dev.to

What Is DPI? 72 vs 300 vs 600 DPI Explained

What Is DPI? 72 vs 300 vs 600 DPI Explained DPI stands for Dots Per Inch. It is commonly used when preparing images for printing. Different projects may require different DPI settings.

  • DPI stands for Dots Per Inch, a measure of image resolution.
  • 72 or 300 DPI are common settings for screen and print tasks respectively.
  • DPIFix tool helps adjust image DPI for various formats.

·dev.to

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