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FFmpeg 7.1 release: a tons of codecs
I'm the president of VideoLAN, one of the lead developers of VLC and a maintainer of open source multimedia projects. I created several startups, was the CTO of scale-ups, and advised startups and VCs.
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Implementing Vertical Form Controls
Safari 17.4 adds vertical writing mode support for form control elements across macOS, iOS, iPadOS, and visionOS.
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How we built the Black Friday Cyber Monday 2023 globe
Every year for Black Friday Cyber Monday (BFCM), we put together a real-time visualization of purchases made through Shopify-powered merchants worldwide. This year we're cooking up something big, and in anticipation we wanted to show you how we built the globe last year. Video of BFCM 2023 Globe Besides going for…
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Own Constant Folder in C/C++
I was talking with someone today that really really wanted the sqrtps to be used in some code they were writing. And because of a quirk with clang (still there as of clang 18.1.0), if you happened to use -ffast-math clang would butcher the use of the intrinsic. So for the code: __m128 test(const __m128 vec) { return…
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Swift Tooling: Windows Edition
Productivity on every platform - a deep dive on the ways we're writing Swift code on Windows, and improving the developer experience along the way.
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Improving Interoperability Between Rust and C++
Posted by Lars Bergstrom – Director, Android Platform Tools & Libraries and Chair of the Rust Foundation Board Back in 2021, we announced...
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Eighteen Years of ABI Stability
It has been eighteen years of libcurl ABI stability.
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Fixing Gemma Bugs
Unsloth fixing Google's open-source language model Gemma.
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Mark–Scavenge: Waiting for Trash to Take Itself Out
This blog post summarises a new garbage collection algorithm called Mark-Scavenge, which highlights how using reachability as a proxy for liveness in moving GCs leads to unnecessary data movement and how we can address this. This work is from the latest paper within the research collaboration between Oracle and…
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Datomic and Content Addressable Techniques
Datomic and Content Addressable Techniques: An Ultimate Data Wonderland
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Understanding x86_64 Paging
I’ve spent quite a lot of time messing with x86_64 page tables, understanding address translation is not easy and when I started learning about it I felt like a lot of the material out there on how it works was hard for me to wrap my head around. So in this blog post I am going to attempt to provide a kind of “what I…
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The Design of Everyday APIs (2022)
What makes a good API for a library? Or more importantly, what makes it bad? This talk discusses the principles of what goes into user-centered design, and how best to apply those principles when writing a Python library for fellow developers.
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In-Depth Ruby Concurrency: Navigating the Ruby Concurrency Landscape
I was honored to present a talk on Ruby concurrency at RubyConf 2024. It represents a high-level distillation of much of my writing and research over the past year. The conference itself was great, and presenting was such a fun experience. Here is the talk, titled “In-Depth Ruby Concurrency: Navigating the Ruby…
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Exploring LoRA – Part 1: The Idea Behind Parameter Efficient Fine-Tuning
“The What and Why of Adapter based Parameter Efficient Fine Tuning: Understanding Its Purpose and Significance”
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Speeding up C++ build times
How we cut build times by 50% and shipped a solution for scale.
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So you want to write Java in Neovim
I have been doing Java in Neovim for quite a while at work, and it’s been a very pleasant experience. As Neovim usage grows (especially amongst the younger crowd), I want to share how I do it.
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Our Git Hash Bug
Things this developer thinks might be interesting to you.
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Execution units are often pipelined
In the context of out-of-order microarchitectures, I was under the impression that execution units remain occupied until the µop they’re processing is complete. This is often not the case.
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Beyond Ctrl-C: The dark corners of Unix signal handling
An introduction to signals: a written version of my talk at RustConf 2023.
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The Elements of APIs (2021)
Would you like the design a web API that is reliable and pleasant to use? I have some ideas for you.
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Flow Field Pathfinding
You may know me for my interactive tutorials. But before that, I was writing visual but non-interactive tutorials. In particular, there wasn’t a lot of information about A* on the web, so I decided to collect all my notes about pathfinding [1] together in one place in the 1990s. But then in the 2010s I started making…
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IOCCC Flight Simulator (2010)
The IOCCC Flight Simulator was the winning entry in the 1998 International Obfuscated C Code Contest. It is a flight simulator in under 2 kilobytes of code, complete with relatively accurate 6-degree-of-freedom dynamics, loadable wireframe scenery, and a small instrument panel.
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"Unstripping" binaries: Restoring debugging information in GDB with Pwndbg
GDB loses significant functionality when debugging binaries that lack debugging symbols (also known as “stripped binaries”). Function and variable names become meaningless addresses; setting breakpoints requires tracking down relevant function addresses from an external source; and printing out structured values…
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Clojure: Managing throughput with virtual threads
A blog mostly about Clojure programming
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On Building Git for Lawyers
Building git for lawyers at Version Story (YC W21) — versionstory.com
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A concrete example of what goes wrong with Apple's docs
Projects and thoughts from James Porter
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GPT-4 Turbo with Vision is a step backwards for coding
OpenAI’s GPT-4 Turbo with Vision model scores worse on aider’s code editing benchmarks than all the previous GPT-4 models. In particular, it seems much more prone to “lazy coding” than the existing GPT-4 Turbo “preview” models.
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Everyone is wrong about that Slack flowchart
Building software is hard. Oftentimes things that seem like they should be simple end up being way more complicated when you get into the details. ( OK, maybe this isn’t specific to software. )
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From BSP to ESP – How S3ctor Abused Quake Editors to Redefine the Morrowind Mod
S3ctor is a core developer of OpenMW, and has, like most of us to be fair, odd interests. This is the incredible story how he mixed two immensely cool things: Quake, and Morrowind, narrated by our …