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WebAssembly’s post-MVP future
People have a misconception—they think that the WebAssembly that landed in browsers back in 2017—is the final version. In fact, we still have many use cases to unlock, from heavy-weight ...
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 3,470 posts.
1442
The little ssh that (sometimes) couldn't
Preface This is a technical article chronicling one of the most interesting bug hunts I’ve had the pleasure of chasing down. At AdGear Technologies Inc. where I work, ssh is king. We use it for management, monitoring, deployments, log file harvesting, even some event streaming. It’s solid, reliable, has all the…
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O(n^2), again, now in Windows Management Instrumentation
I recently hit some multi-minute delays on my workstation. After investigating I found that the problem was due to a lock being held for five minutes, and during that time the lock-holder was mostl…
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A Quantum Leap for the Web
Over the past year, our top priority for Firefox was the Electrolysis project to deliver a multi-process browsing experience to users…
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Auditing GitHub users’ SSH key quality
If you have just/as of late gotten an email about your keys being revoked, this is because of me, and if you have, you should really go through and make sure that no one has done anything terrible to you, since you have opened yourself to people doing very mean things to you for what is most likely a very long time.
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We should all be using dependency cooldowns
See cooldowns.dev for up-to-date information on cooldown adoption across various languages and package ecosystems.
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How to Safely Store Your Users' Passwords in 2016
Salted Password Hashing with Argon2, Scrypt, Bcrypt, and PBKDF2
1450
The new rules of context engineering for Claude 5 generation models
We removed over 80% of Claude Code's system prompt for more advanced models. How to apply the lessons we learned to your own context engineering in Claude Code and with your own agents.
1451
TDD from the Factorio Team
Hello, long time no see :) We obviously have a lot to talk about when it comes to the game changes we recently did, or plan to do, but we don't want to share any of it yet. Yet, there is currently a topic very relevant to us and we can share it without revealing any specific changes to the game. Today's post will be…
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Adobe Photoshop 1.0.1 Source Code (2013)
When brothers Thomas and John Knoll began designing and writing an image editing program in the late 1980s, they could not have imagined that they would be adding a word to the dictionary.
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Update Regarding Add-Ons in Firefox
Incident summary Updates - Last updated 14:35 PST May 14, 2019. We expect this to be our final update. If you are running Firefox versions 61 - 65 ...
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Futurelock: A subtle risk in async Rust
This RFD describes futurelock : a type of deadlock where a resource owned by Future A is required for another Future B to proceed, while the Task responsible for both Futures is no longer polling A . Futurelock is a particularly subtle risk in writing asynchronous Rust.
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Someone’s Been Messing with My Subnormals
TL;DR: After noticing an annoying warning, I went on an absurd yak shave, and discovered that because of a tiny handful of Python packages b...
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Performance comparison: counting words in Python, Go, C++, C, Awk, Forth, Rust
Performance comparison of counting and sorting word frequencies in various languages (Python, Go, C++, C, AWK, Forth, and Rust)
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Maintain It with Zig
No matter what language you program in or what applications you use: everything you do with a computer today is powered at some level by a piece of C/C++ code.
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Is WebP really better than JPEG?
If you have used tools like Google’s PageSpeed Insights, you probably have run into a suggestion to use “next-gen image formats”, namely Google’s WebP image format. Google claims that their WebP…
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From Design Patterns to Category Theory (2017)
How do you design good abstractions? By using abstractions that already exist.
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Persona vectors: Monitoring and controlling character traits in language models
A paper from Anthropic describing persona vectors and their applications to monitoring and controlling model behavior.
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Moving Atom to React
We are archiving Atom and all projects under the Atom organization for an official sunset on December 15, 2022.
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Our Software Dependency Problem
For decades, discussion of software reuse was far more common than actual software reuse. Today, the situation is reversed: developers reuse software written by others every day, in the form of software dependencies, and the situation goes mostly unexamined.
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Light Table's Numbers, And What's Happening Next
All I can say is “wow”! The response to Light Table has been far more positive and far greater than I could’ve imagined. To put it into perspective, here are some aggregated numbers at the time of this writing:
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Game Loop
If there is one pattern this book couldn’t live without, this is it. Game loops are the quintessential example of a “game programming pattern”. Almost every game has one, no two are exactly alike, and relatively few programs outside of games use them.
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Why LSP?
LSP (language server protocol) is fairly popular today. There's a standard explanation of why that is the case. You probably have seen this picture before:
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Natural Language Autoencoders: Turning Claude's Thoughts into Text
AI models like Claude talk in words but think in numbers. In this study, we train Claude to translate its thoughts into human-readable text.