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The art and engineering of Sega CD Silpheed
The 90's was a decade of considerable improvement in the world of video-game consoles [1] . Each new model brought advanced processing power and better graphics without compromise.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,413 posts.
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Removing React.js from the codebase and adapting Htmx for UI interactivity (2023)
Started by rafalp on Dec. 12, 2023 in the Roadmap category. 6 replies, last one from July 25, 2024.
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The tilde in your PATH may not be your HOME
I was playing with the nono agent sandboxing tool and it greeted me with a warning: PATH entries the sandbox can write to: ~/.local/bin/ which looked suspicious.
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Prime Agent: A self-improving RLM agent
Prime Agent is our open-source, self-improving coding harness built around two abstractions: the Recursive Language Model (RLM) and the Continual Harness. With Opus 5, it achieves 95.5% on ARC-AGI-3, surpassing the reported human expert baseline.
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Who is vfmaddrnd231pd?
vfmaddrnd231pd is a unique instruction from the FMA instruction set. Most instructions in that set have mnemonics like vfmadd231pd, but here rnd means something very specific. The Intel Software Development Manual documents it as: VFMADDRND231PD – Fused Multiply-Add of Packed Double-Precision Floating-Point Values…
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MAUI Is Coming to Linux
Announcing the first release of Avalonia MAUI
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AI2: Open Coding Agents
SERA is the first in our family of Open Coding Agents, achieving state-of-the-art performance at low cost.
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Forging a Microsoft Edge Full Chain with Logic Bugs Only
This is what I built for Pwn2Own Berlin 2026 — a completely handmade, logic-only Microsoft Edge Full Chain, with no memory corruption, and no AI at all! 🔥
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Hosting a website on an 8-bit microcontroller
My victim is the AVR64DD32 which is quite similar to the Atmega328 of Arduino fame. Compared to the older Atmega, these AVR DD lines are cheaper for the same memory, use a single programming pin and have nicer peripherals:
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C++ std::move doesn't move anything: A deep dive into Value Categories
Why std::move is just a cast, how it kills RVO if used wrong, and the mechanics of ownership transfer.
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Why I forked httpx
I forked the python library httpx to httpxyz after over a year without a release of this popular package
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Getting the most out of Opus 5.5 in Claude and Claude Code
How to prompt Opus 5.5, steer a long run, and check your results in Claude apps and Claude Code.
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How to make a fast dynamic language interpreter
This post is about optimizing an extremely simple AST-walking interpreter for a dynamic language called Zef that I created for fun to the point where it is competitive with the likes of Lua, QuickJS, and CPython.
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Stories from 25 Years of Software Development
Last year, I completed 20 years in professional software development. I wanted to write a post to mark the occasion back then, but couldn't find the time. This post is my attempt to make up for that omission. In fact, I have been involved in software development for a little longer than 20 years. Although I had my…
556
Setting up your spare Mac for Claude Code to control, a step-by-step guide
Step-by-step guide to turning your spare Mac into an always-on machine Claude Code can fully control - talk to it from your phone through the Claude app or from your main Mac over SSH.
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My Agent Skill for Test-Driven Development
AI agents tend to be, at least as of this writing (May 2026), lousy at writing tests. The tests they write are often vague, cryptic, overcomplicated, hacky, dis...
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Jeffgeerling.com has been migrated to Hugo
Since 2009, this website has run on Drupal. Starting with Drupal 6, and progressing through major site upgrades and migrations to 7, 8, 9, and 10, I used the site as a way to dogfood the same CMS (Content Management System) I used in my day job for over a decade. But as time progressed—especially after completing a…
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Parse, Don't Validate and Type-Driven Design in Rust
Applying the type-driven mindset to rust via the "Parse, don't Validate" pattern
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How My Images Are Dithered
Hello there! This is my personal website and it is allergic to SEO.
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Audio Reactive LED Strips Are Diabolically Hard
I spent years building one of the most popular LED strip visualizers on GitHub. It's the kind of project that's easy to get started but diabolically hard to master.
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Gleam Is Now on Tangled
⭐️ A friendly language for building type-safe, scalable systems!
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AI code and software craft
Update (Feb 17, 2026)—I no longer agree with many statements made in this blog post. I am leaving it here unmodified. See my follow-up: AI can sort of code, can't write .
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What is a database transaction?
What are database transactions and how do SQL databases isolate one transaction from another?
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Principles for Fast Tokio Applications
A microscope for Tokio and Rust applications
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First steps in bare-metal programming using UEFI
A series of articles about bare-metal programming for x86 PC-type computers, using Linux for development.
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NP-overrated
If you learned about NP-hard problems in university, your takeaway was probably this:
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How Claude Code works in large codebases
The most successful Claude Code deployments share a set of recognizable patterns across configurations, tooling, and org structure. This article is part of Claude Code at scale, a new series covering best practices for engineering organizations building with Claude Code at enterprise scale.
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