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Font Rendering from First Principles
Learn what it takes to build a font renderer from scratch in C.
New
The latest blog posts to take off on Hacker News. 1,423 posts.
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The silent death of good code
I’ve been passionate about writing “Good Code™” since before I started my career, beginning way back when I was still a kid in middle school.
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We mourn our craft
I didn’t ask for this and neither did you. I didn’t ask for a robot to consume every blog post and piece of code I ever wrote and parrot it back so that some…
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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…
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We interfaced single-threaded C++ with multi-threaded Rust
And lived to tell the tale.
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How to effectively write quality code with AI
AI is rarely optional anymore, but how can you still be proud of your craft? Discover the workflow to effectively write high-quality, robust code using AI tools.
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LLMs could be, but shouldn't be compilers
I’ve been going round and round in my mind about a particular discussion around LLMs: are they really similar to compilers? Are we headed toward a world where people don’t look at the underlying code for their programs?
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Things Unix can do atomically (2010)
This is a catalog of things UNIX-like/POSIX-compliant operating systems can do atomically, making them useful as building blocks for thread-safe and multi-process-safe programs without mutexes or read/write locks. The list is by no means exhaustive and I expect it to be updated frequently for the foreseeable future.
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We tasked Opus 4.6 using agent teams to build a C Compiler
How a team of 16 parallel Claude agents wrote a Rust-based C compiler from scratch, capable of compiling the Linux kernel, and what it taught us.
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GPT-5.3-Codex
GPT-5.3-Codex is a Codex-native agent that pairs frontier coding performance with general reasoning to support long-horizon, real-world technical work.
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Making geo joins faster with H3 indexes
Using H3 indexes to greatly speed up geospatial SQL Queries. Orders of magnitude improvements can be gained with the right data structures
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Wirth's Revenge
Are LLMs the final blow in the war against Wirth's law?
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Start all of your commands with a comma (2009)
Like many Unix users, I long ago created a ~/bin/ directory in my home directory and added it to my PATH so that I could supplement the wonderfully rich set of basic Unix commands with some conveniences and shell scripts of my own devising.
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Recreating Epstein PDFs from raw encoded attachments
Heads-up: An update to this article has been posted. There have been a lot of complaints about both the competency and the logic behind the latest Epstein archive release by the DoJ: from censoring…
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F# 10
Learn about new F# 10 language features, performance upgrades, and tooling improvements shipping with .NET 10.
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How I've run major projects (2025)
focus • maintain a detailed plan for victory • run a fast OODA loop • overcommunicate • break off subprojects • have fun • bonus content: my project management starter kit
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Xcode 26.3 – Developers can leverage coding agents directly in Xcode
Xcode 26.3 introduces support for agentic coding, a new way in Xcode for developers to build apps, powered by coding agents from Anthropic and OpenAI.
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Deno Sandbox
Instant Linux microVMs with defense-in-depth security for running untrusted code.
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1 kilobyte is precisely 1000 bytes?
We usually learn that 1 kilobyte is 1024 bytes, 1 MB is 1024 kilobytes, etc. But is this true or a kilobyte is precisely 1000 bytes?
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Qwen3-Coder-Next
Qwen offers comprehensive functionality spanning chatbot, image and video understanding, image generation, document processing, web search integration, tool utilization, and artifacts.
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LLMs as the new high level language
[UPDATE 2026-06-09]: a few months on, I have more misgivings than certainties about this.
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What's up with all those equals signs anyway?
For some reason or other, people have been posting a lot of excerpts from old emails on Twitter over the last few days. The most vital question everybody’s asking themselves is: What’s …
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The largest number representable in 64 bits
This post is a rewrite of my earlier blog post from Nov 2023 with new insights and updates.
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My fast zero-allocation webserver using OxCaml
Building httpz, a high-performance HTTP/1.1 parser with zero heap allocation using OxCaml's unboxed types, local allocations, and mutable local variables.
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Building Your Own Efficient uint128 in C++
A practical walk-through of a fixed-width uint128 implementation in modern C++.
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Resurrecting Crimsonland – Decompiling and preserving a cult 2003 classic game
Recovering and preserving Crimsonland, the 2003 top-down shooter, through reverse engineering of its original binary.
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How to Scale a System from 0 to 10M+ Users
Scaling is a complex topic, but after working at big tech on services handling millions of requests and scaling my own startup (AlgoMaster.io) from scratch, I’ve realized that most systems evolve through a surprisingly similar set of stages as they grow.
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What I learned building an opinionated and minimal coding agent
Lessons I learned while building my own coding agent from scratch.