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Emacs as your video-trimming tool
Marcin ‘mbork’ Borkowski has a nice post showing us how he trims video clips from our beloved editor. Trimming clips is something I do from time to ti...
New
The latest blog posts to take off on Hacker News. 1,748 posts.
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How we exploited CodeRabbit: From simple PR to RCE and write access on 1M repos
The Latest News from Research at Kudelski Security
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Without the futex, it's futile
Review: It's a history text, not a CS text
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PyPI Preventing Domain Resurrection Attacks
PyPI now checks for expired domains to prevent domain resurrection attacks, a type of supply-chain attack where someone buys an expired domain and uses it to take over PyPI accounts through password resets.
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Left to Right Programming
Programs Should Be Valid as They Are Typed
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Why we still build with Ruby
Why we still choose Ruby on Rails in 2025: Learn how Lago scales millions of API events with Rails, Go, and Rust, balancing developer speed, concurrency, and performance.
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MCP doesn't need tools, it needs code
Exploration into providing MCPs with the most powerful of all tools: code.
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I Prefer RST to Markdown (2024)
I will never stop dying on this hill
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Lessons learned from building a sync-engine and reactivity system with SQLite
Welcome to my personal blog! I use it to share what I'm currently learning or thinking about, usually on topics related to technology, business, and health.
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Node.js is able to execute TypeScript files without additional configuration
Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
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Apple's new Processor Trace instrument is incredible
The new Processor Trace instrument has flown under the radar with this years WWDC announcements but many developers will find it truly indispensable.
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Traps to Developers
HTML and CSS
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Good system design
I see a lot of bad system design advice. One classic is the LinkedIn-optimized “bet you never heard of queues” style of post, presumably aimed at people who are…
735
Best Practices for Building Agentic AI Systems
Patterns that keep AI agent systems from falling apart in production: two-tier architecture, stateless design, orchestration, and lessons from UserJot.
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TextKit 2 – The Promised Land
After 4 years with Apple's TextKit 2: The promised 'better' text engine has unstable scrolling, unreliable height estimates, and viewport issues so bad that even Apple's TextEdit suffers from them. Good architecture, but the implementation makes it frustratingly difficult for real-world apps.
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Claude Opus 4 and 4.1 can now end a rare subset of conversations
Claude Opus 4 and 4.1 can now end a rare subset of conversations. An update on our exploratory research on model welfare.
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I accidentally became PureGym’s unofficial Apple Wallet developer
How I reverse-engineered PureGym's API to build a working Apple Wallet pass with PassKit, Vapor, and mitmproxy - end-to-end iOS reverse engineering walkthrough.
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Blurry rendering of games on Mac
ProblemSolutionAffected GamesWhat Apple could do Problem I’ve submitted the issue described in this post to Apple as FB13375033. This issue has been open since September of 2023. If you game …
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We rewrote the Ghostty GTK application
We just completed rewriting the Ghostty GTK application fully embracing the GObject type system from Zig and also verifying with Valgrind every step of the way. The result is a more feature rich, stable, and maintainable Ghostty on Linux and BSD.
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I made a real-time C/C++/Rust build visualizer
Sometimes software takes a long time to compile just due to how much code it has, like in the LLVM project. But often a build is slower than it could be for dumb, fixable reasons. I’ve had the suspicion that most builds are doing dumb stuff, but I had no way to see it. So I’ve been working on a cross-platform tool to…
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Jujutsu and Radicle
Sovereign code infrastructure.
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Why LLMs can't really build software
From the Zed Blog: Writing code is only one part of effective software engineering.
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PYX: The next step in Python packaging
pyx is a Python-native package registry from the creators of uv.
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OCaml as my primary language
A detailed explanation of why I chose OCaml as the ‘default’ programming language for every project.
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April Fools 2014: The *Real* Test Driven Development (2014)
Update: APRIL FOOLS! by Kaue Silveira Here at Google, we invest heavily in development productivity research. In fact, our TDD resea...
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Coalton Playground: Type-Safe Lisp in the Browser
I wanted to share a side project I’ve been tinkering with for a while and finally got around to shipping: Coalton Playground – basically a web-based REPL for Coalton, which is this inte…
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Writing a competitive BZip2 encoder in Ada from scratch in a few days – part 2
Note for subscribers: if you are interested in my Ada programming articles only, you can use this RSS feed link. Link to Part 3 here . As ...
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SuperSight: A graphical enhancement mod for Brøderbund's "Stunts"
Clickbait disclaimer: Stunts was actually created by Distinctive Software; Brøderbund was only the publisher. But nobody heard about Distinctive , and I wanted to be sure this article does not get confused with the one about Disney's Stunt Island . Sorry about that.