151
Hexadecimal clock counting down to 2038 problem
It is now ??????????.??? ( ????-??-??T??:??:??.???Z ) in Unix time , according to your local system clock.
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 217 posts.
152
Optimizing a ring buffer for throughput (2021)
In this article I will take a look at the classic concurrent ring buffer and how it can be optimized to increase throughput.
153
WebAssembly Tail Calls
This document explains the WebAssembly tail calls proposal and demonstrates it with some examples.
154
I Won't Use Next.js
I've written tens of thousands of lines of code with Remix and I want to tell you why I love using this framework.
155
Combobulate: Structured Movement and Editing with Tree-Sitter
Combobulate is a package that adds advanced structured editing and movement to many programming modes in Emacs. Here's how it works, and how it can enrich your editing experience in Emacs.
156
The largest number representable in 64 bits
A rewrite of this blog post with many new insights and updates appeared in Jan 2026
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GitHub Copilot X – Sign up for technical preview
GitHub Copilot is evolving to bring chat and voice interfaces, support pull requests, answer questions, and adopt OpenAI's GPT-4.
159
Attention Is Off By One
Let’s fix these pesky Transformer outliers using Softmax One and QuietAttention.
160
An interactive intro to CRDTs
CRDTs don't have to be all academic papers and math jargon. Learn what CRDTs are and how they work through interactive visualizations and code samples.
161
Automerge 2.0
Automerge 2.0 is here and ready for production.
162
iMessage, explained
This blog post is going to be a cursory overview of the internals iMessage, as I’ve discovered during my work on pypush, an open source project that reimplements iMessage.
163
Lessons learned from 15 years of SumatraPDF, an open source Windows app (2021)
Lessons learned from 15 years of writing SumatraPDF, a great open-source PDF, eBook, and comic book reader for Windows
164
Writing Python like it's Rust
You can check out a YouTube recording of a talk based on this blog post.
165
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems…
166
SciPy builds for Python 3.12 on Windows are a minor miracle
Moving SciPy to Meson meant finding a different Fortran compiler on Windows, which was particularly tricky to pull off for conda-forge. This blog tells the story about how things looked pretty grim for the Python 3.12 release, and how things ended up working out just in the nick of time.
167
Patterns for building LLM-based systems and products
Evals, RAG, fine-tuning, caching, guardrails, defensive UX, and collecting user feedback.
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Things Every Hacker Once Knew (2017)
One fine day in January 2017 I was reminded of something I had half-noticed a few times over the previous decade. That is, younger hackers don’t know the bit structure of ASCII and the meaning of the odder control characters in it.
170
Beautiful branchless binary search
I read a blog post by Alex Muscar, “Beautiful Binary Search in D”. It describes a binary search called “Shar’s algorithm”. I’d never heard of it and it’s i…
171
Prompt engineering vs. blind prompting
"Prompt Engineering" emerged from the growth of language models to describe the process of applying prompting to effectively extract information from language models, typically for use in real-world applications.
172
Phoenix 1.7.0
Phoenix 1.7.0 is here! This releases includes major new features, component-based generators, updated conventions, LiveView Streams, and more!
173
How I Made a Heap Overflow in Curl
In association with the release of curl 8.4.0, we publish a security advisory and all the details for CVE-2023-38545. This problem is the worst security problem found in curl in a long time. We set it to severity HIGH. While the advisory contains all the necessary details. I figured I would use a few additional ……
174
Officially Qualified – Ferrocene
It’s official: Ferrocene is ISO 26262 and IEC 61508 qualified! You can even find the certificate in TÜV SÜDs certificate database. This means we achieved qualification for the open source Ferrocene toolchain. Ferrocene 23.06.0, based on Rust 1...
175
I use C when I believe in memory safety
I am using C for a professional project. I believe in memory safety. Yes, I'm a hypocrite, but please, let me explain.
176
RustRover – A standalone Rust IDE
“When will there be a Rust IDE?” Update: RustRover is now generally available, with free non-commercial use and commercial licensing options. Learn more about the RustRover release. We get this
177
Use GNU Emacs
This work by Keith Waclena is copyright 2026 and is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 (CC BY-NC-ND 3.0) license.
178
Go 1.20 released
The latest Go release, version 1.20, arrives six months after Go 1.19 . Most of its changes are in the implementation of the toolchain, runtime, and libraries. As always, the release maintains the Go 1 promise of compatibility . We expect almost all Go programs to continue to compile and run as before.
179
Accelerating Generative AI with PyTorch II: GPT, Fast
This post is the second part of a multi-series blog focused on how to accelerate generative AI models with pure, native PyTorch. We are excited to share a breadth of...
180
TypeScript 5.2's new keyword: 'Using'
TypeScript 5.2 introduces 'using', a keyword that disposes anything with a `Symbol.dispose` function upon leaving scope, making resource management easier.