Testing is better than data structures and algorithms
People should spend less time learning DSA, more time learning testing.
The latest blog posts to take off on Hacker News. 21,818 posts.
People should spend less time learning DSA, more time learning testing.
This was a good thing . YAML anchors in GitHub Actions are (1) redundant with existing functionality, (2) introduce a complication to the data model that makes CI/CD human and machine comprehension harder, and (3) are not even uniquely useful because GitHub has chosen not to support the one feature (merge keys) that…
Offline-first apps promise instant loading and privacy, but in practice, very few apps get offline support because getting sync right is surprisingly hard.
Cap'n Web is a new open source, JavaScript-native RPC protocol for use in browsers and web servers. It provides the expressive power of Cap'n Proto, but with no schemas and no boilerplate.
We tested 19 LLMs on their ability to handle real-world software engineering tasks like compiling old code and cross-compiling. See how Anthropic, OpenAI, and Google models stack up in our new benchmark – CompileBench.
This small ebook is here to teach you a programming language called Forth. Forth is a language unlike most others. It’s not functional or object oriented, it doesn’t have type-checking, and it basically has zero syntax. It was written in the 70s, but is still used today for certain applications .
The Ruby community can no longer afford to stand silent in the face of DHH and his toxic ideas.
A developer's lament about Xcode's opaque errors, unreadable project files, and Apple's culture of pretending everything is fine.
The gophers nested too greedily and too deep.
Why does Space Station 14 crash with ANGLE on ARM64? 6 hours later…
PostgreSQL 18 adds native support for UUIDv7. A timestamp-based UUID variant that plays nicely with btree indexes. Here's what that means for you.
From magical to frustrating in months. Why AI coding agents feel like dial-up internet and what ultra-fast inference could unlock for developer productivity.
The rise of AI-powered coding has created an unexpected market: cleaning up the technical debt from prompt-generated software. Here's why 'Vibe Coding cleanup' is becoming a legitimate service category and what it means for the future of software development.
How building edge-case first led to bloated, overly-granular libraries and what we can do about it
Karl Seguin's Blog - A mix of coding and creative writing
A tale of debugging hardware with unconventional methods. How I perfected the firmware of BrakeBright (a motorcycle safety device) using a vibrator.
Editor’s note (August 25, 2026): Updated the Node20 removal date to September 23rd, 2026. Editor’s note (February 25, 2026): Updated the migration date to June of 2026. Editor’s note (May…
Back in my day, we used math for autocomplete.
Our legal battle over Oracle's claim on the word "JavaScript" is entering the discovery phase. Here's how you can help.
A practical, no-fluff guide to understanding the OpenTelemetry Collector - what it does, how it works, real architecture patterns (with and without it).
We have all been there. Your software keeps growing and you feel the need to make it customizable. It is too soon for a full-blown UI with all the bells and whistles, so your pragmatic instinct suggests a text-based configuration file. Yes, that’s exactly it! You rejoice knowing the software’s configuration will be…
The craft of AI-assisted software creation is substantially about correctly managing units of work.
Imagine you close your laptop lid to put it to sleep, but instead of pausing, it reboots. Not every time, just often enough to be infuriating. You try to save your work, but the machine decides to start over.
You've probably heard of stream ciphers, but what about a scream cipher 😱? Today I learned there are more “Latin capital letter A” Unicode characters than there are letters in the English alphabet....
This is a day long course to quickly learn the inner working of hypervisors and techniques to write them for high-performance fuzzing.
WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications.
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Adding multi-scale noise layers, mountain distance fields, and elevation blending to create detailed terrain from the paint map foundation.