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Java is fast, code might not be
Fixing common Java anti-patterns took an app from 1,198ms to 239ms. Eight patterns that compile fine and pass code review but silently drain CPU and balloon heap, with benchmarks and code fixes for each
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,421 posts.
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Using LLM for confidence scoring is a bad idea
LLM-based agents can do a lot of tasks. Or, at least, they can appear to do them. For example, they write code, summarize papers, plan trips, and fill in forms. If you ask one for a probability or a confidence score, it will give you one of those too. I have seen many agent designers use LLMs to generate confidence…
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Async/Await on the GPU
GPU code can now use Rust's async/await. We share the reasons why and what this unlocks for GPU programming.
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A decades-old bug in Knuth's long division (TAOCP Vol II, Algorithm 4.3.1D)
A long division story
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If DSPy is so great, why isn't anyone using it?
Any sufficiently complicated AI system contains an ad hoc, informally-specified, bug-ridden implementation of half of DSPy.
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WATaBoy: JIT-Ing Game Boy Instructions to WASM Beats a Native Interpreter
A Game Boy emulator runs faster than a native interpreter by dynamically recompiling SM83 to WebAssembly, effectively making JIT possible on iOS.
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Fable Took My Job
Fable is cool yo, it takes jobs yo, - Dario "steve" Altman
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Just Use Go
Hey, dipshit. You know what compiles in two seconds, deploys as a single binary, and doesn't shit itself when a transitive dependency gets yanked from npm at 3am? Go. The same way HTML has been sitting there since the dawn of the goddamn internet waiting for you to stop overcomplicating the frontend, Go has been…
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Let's compile Quake like it's 1997
The first batches of Quake executables, quake.exe and vquake.exe were programmed on HP 712-60 running NeXT and cross-compiled with DJGPP running on a DEC Alpha server 2100A. In June of 1996, having shipped their title but concerned with NeXT stagnation, id Software switched their development stack.
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Direct Win32 API, weird-shaped windows, and why they mostly disappeared
The nice thing about Win32 is that it does not try to talk you out of any of this. It just gives you the messages, the handles, the drawing APIs, and enough rope to ...
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Only 17% of all 64-bit Integers are products of two 32-bit integers
In software programming, the product between two integers is often computed to a fixed number of bits with overflow. Consider 8-bit integers. If you multiply 127 by 127, you get back the number 1 as an 8-bit unsigned integer, with an overflow. The actual full product is 16129. To represent 16129, you typically use 16…
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sp.h: Fixing C by giving it a high quality, ultra portable standard library
Over the past year, I’ve been working on fixing C by giving it a high quality, ultra portable standard library. It is not a simple wrapper on top of libc; it doesn’t depend on libc except when required to by the platform. To my knowledge, there is nothing like it.
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Union types in C# 15
C# 15 introduces union types — declare a closed set of case types with implicit conversions and exhaustive pattern matching. Try unions in preview today and see the broader exhaustiveness roadmap.
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Building an FPGA 3dfx Voodoo with Modern RTL Tools
This frame of Screamer 2 was rendered not by an original 3dfx card and not by an emulator, but by an FPGA reimplementation of the Voodoo 1 that I wrote in SpinalHDL. Available on GitHub .
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Clojure 1.13 adds support for checked keys
Clojure 1.13.0-alpha1 is now available! Find download and usage information on the Downloads page.
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Rebasing in Magit
I read Ian Whitlock’s article on why he can’t quit Magit and it inspired me to share more about Magit from my perspective. This article will focus on rebasing.
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Wolfram Language and Mathematica version 15
AI-related upgrades like the built-in AI Assistant, extended computation-augmented generation and the Wolfram Agent Tools framework. Advances in TimeSeries & Tabular. New categorical data, ModelFit automated model selection, symbolic music. Efficient handling of gigabyte-sized notebooks. Gains in the already-robust…
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Rune is now open source
Rune is now open source under the GPLv3. A native, keyboard-driven IDE written primarily in Go is ready for Go developers to inspect, change, and help build.
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Rust SIMD on the GPU
At VectorWare , we are building the first GPU-native software company . Today, we are excited to announce that we can successfully use Rust's portable SIMD ( core::simd ) on the GPU. This milestone marks a significant step towards our vision of enabling developers to write complex, high-performance applications that…
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Dolphin Emulator Progress Release 2606
Welcome to the Progress Report for Dolphin Release 2606. We usually prefer to launch toward the beginning of the month, but a slew of important, large, and technically challenging changes had us working overtime. Strap in, because we have a lot to cover! For April Fool's we teased that Dolphin now had support for the…
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An interactive intro to quadtrees
An interactive exploration of quadtrees. Start with brute-force spatial search, build recursive space partitioning step by step, then use it for point lookups, range queries, nearest-neighbor search, collision detection, and image compression.
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Some C habits I employ for the modern day
Despite it being the first “proper” programming language I learned—by reading K&R front-to-back no less—I don’t write C too terribly often nowadays. Playing resonite has gotten me into writing a load of C# for modding the game, and most of what I do day-to-day is automating the tedium on my computer, which gets…
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Cohere Transcribe: Speech Recognition
Unmatched accuracy and speed. Transcribe converts your business’ audio data into precise text for search, analytics, and automation.
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Why write code in 2026
A bunch of reasons to write code in 2026
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The new HTTP QUERY method explained
In this blog post, we take a deep dive into the new HTTP QUERY method, explaining the history behind it as well as the advantages and disadvantages of using it.
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My Software North Star
Loris Cro's Blog
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Backpressure is all you need
Hot takes and cold truths on software, startups, and the lies we tell ourselves.