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How I fixed a bug in Atom
When good regexes go bad
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,531 posts.
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Scaling React Server Side Rendering
I had the opportunity to work on scaling a React rendering service, adapting a fixed hardware provision to deal with increasing load. Over the course of many months, incremental improvements were made to the system to enable it to cope with demand. I thought it might be useful to share the more interesting insights…
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Pokegb: A gameboy emulator that only plays Pokémon Blue, in 68 lines of C++
POKEGB: A gameboy emulator that only plays Pokémon Blue, in 62 lines of c++. source: https://t.co/AGt7RUTr9H pic.twitter.com/o0BUUmzNOt
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The FizzBuzz that did not get me the job
Made in Notion, the connected workspace where AI agents and teams organize docs, projects and knowledge together.
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jj – the CLI for Jujutsu
jj is the name of the CLI for Jujutsu . Jujutsu is a DVCS, or "distributed version control system." You may be familiar with other DVCSes, such as git , and this tutorial assumes you're coming to jj from git .
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The JVM is not that heavy
Mostly my opposition to Clojure is the JVM. That sh*t is heavy. This came up in the ZA Tech Slack team several weeks ago. While watching some Clojure talks...
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On Coding, Ego and Attention
My thoughts on coding, ego and attention. How I learned to get out of my own way by learning about this link between ego and attention.
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Reverse Engineering the Source Code of the BioNTech/Pfizer SARS-CoV-2 Vaccine
Translations: ελληνικά / عربى / 中文 (Weixin video, Youtube video) / 粵文 / bahasa Indonesia / český / Català / český / Deutsch / Español / 2فارسی / فارسی / Français / עִברִית / Hrvatski / Italiano / Magyar / Nederlands / 日本語 / 日本語 2 / नेपाली / Polskie / русский / Português / Română / Slovensky / Slovenščina / Srpski /…
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Solid.js feels like what I always wanted React to be
I'm sold on Solid.
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TIL: You can make HTTP requests without curl using Bash /dev/TCP
Minimal container images often ship without curl, wget, or any HTTP client at all. Bash can open a TCP socket through /dev/tcp, which is enough to write a tiny HTTP/1.1 request by hand for quick checks.
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test, [, and [[ (2020)
A little essay on the amusement or horror that may bring to learn that both test and [ are binaries on your typical Unix system, and that [[ is subject to completely different rules.
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How I use my terminal
i have gone a little above and beyond trying to get all the features of VSCode
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Build your own database
A step-by-step guide to building a key-value database from scratch.
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Everyone is still terrible at creating software at scale
I have a hunch that once people saw the economic potential of software, they started looking for ways to "scale it up" and we haven't stopped searching yet.
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An example of LLM prompting for programming
Generated knowledge and chain of thought prompting of an LLM can generate useful code.
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Write Your Own Virtual Machine
In this tutorial, I will teach you how to write your own virtual machine (VM) that can run assembly language programs, such as my friend’s 2048 or my Roguelike . If you know how to program, but would like to gain a deeper understanding of what is going on inside a computer and better understand how programming…
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Prevent cognitive debt by manually retyping LLM-generated code
Despite what I said in April , I'm still using coding assistants on my personal projects.
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Goodbye, Twilio
As of this week and after almost four years, I'm not a Twilio employee anymore. I'm writing this while I work through a range of conflicting emotions, and try to adapt to new daily routines without…
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A bunch of programming advice I'd give to myself 15 years ago
I finally have the feeling that I’m a decent programmer, so I thought it would be fun to write some advice with the idea of “what would have gotten me to this point faster?” I’m not claiming this is great advice for everyone, just that it would have been good advice for me. If you (or your team) are shooting…
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Light Table 0.4 released
With this release our goal was to bring more people into the fold, to increase the number of languages we can eval, and to smooth out some of the core experience. After 0.3, we finally had a chance to move the ball forward some - from live modifying websites directly inside of LT to injecting code into NodeJS and…
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Understanding Python through its builtins
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Claude Code On-the-Go
Running six Claude Code agents in parallel from an iPhone. A cloud VM, Tailscale, mosh, and push notifications enable async development from anywhere.
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Agentic Engineering Patterns
Patterns for getting the best results out of coding agents like Claude Code and OpenAI Codex. See my introduction for more on this project.
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On React and WordPress
Big companies like to bury unpleasant news on Fridays: A few weeks ago, Facebook announced they have decided to dig in on their patent clause addition to the React license, even after Apache had sa…
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Text Rendering Hates You
Rendering text, how hard could it be? As it turns out, incredibly hard! To my knowledge, literally no system renders text “perfectly”. It’s all best-effort, although some efforts are more important than others.
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