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What I learned building an opinionated and minimal coding agent

What I learned building an opinionated and minimal coding agent

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🔥 Check out this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: 2025-11-30 It's not much, but it's mine In the past three years, I've been using LLMs for assisted coding. If you read this, you probably went through the same evolution: from copying and pasting code into ChatGPT, to Copilot auto-completions (which never worked for me), to Cursor, and finally the new breed of coding agent harnesses like Claude Code, Codex, Amp, Droid, and opencode that became our daily drivers in 2025. I preferred Claude Code for most of my work. It was the first…
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The Book of PF, 4th Edition

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🔥 Explore this awesome post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Download Chapter 3: Into the Real World The OpenBSD packet filter, PF, is central to the OpenBSD and FreeBSD network toolbox. With more services placing high demands on bandwidth and an increasingly hostile Internet environment, no sysadmin can afford to be without PF expertise. The fourth edition of The Book of PF covers the most up-to-date developments in PF, including new content on IPv6, dual stack configurations, the “queues and priorities” traffic-shaping system, NAT and redirection, wireless networking, spam fighting, failover provisioning, logging, and more. …
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zupat/related_post_gen: Data Processing benchmark featuring Rust, Go, Swift, Zig, Julia etc.

zupat/related_post_gen: Data Processing benchmark featuring Rust, Go, Swift, Zig, Julia etc.

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🔥 Discover this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Rust - 4.5s Initial Rust v2 - 2.60s Replace std HashMap with fxHashMap by phazer99 Rust v3 - 1.28s Preallocate and reuse map and unstable sort by vdrmn and Darksonn Rust v4 - 0.13s Use Post index as key instead of Pointer and Binary Heap by RB5009 Rust v5 38ms 52ms Rm hashing from loop and use vec[count] instead of map[index]count by RB5009 Rust v6 23ms 36ms Optimized Binary Heap Ops by scottlamb Rust Rayon 9ms 22ms Parallelize by masmullin2000 Rust Rayon 8ms 22ms Remove…
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When will CSS Grid Lanes arrive? How long until we can use it?

When will CSS Grid Lanes arrive? How long until we can use it?

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🚀 Explore this trending post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Anytime an exciting new web technology starts to land in browsers, developers want to know “when in the world am I going to be able to use this?” Currently, the finalized syntax for Grid Lanes is available in Safari Technology Preview. Edge, Chrome and Firefox have all made significant progress on their implementations, so it’s going to arrive sooner than you think. Plus, you can start using it as soon as you want with progressive enhancement. This article will show you how. Deliver the layout…
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Cells Use ‘Bioelectricity’ To Coordinate and Make Group Decisions

Cells Use ‘Bioelectricity’ To Coordinate and Make Group Decisions

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💥 Read this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: While Galvani was later proven wrong in the details, he wasn’t totally off. Virtually every cell on every branch of the tree of life expends a hefty chunk of its energy budget — in some cells, more than half — on maintaining a voltage across its membrane. The voltage difference that results, called the membrane potential, stores potential energy that can be released later. It’s like the pressure behind a dam: Gravity tugs water downhill, and dams store energy by holding water at the top…
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Ternary Search: Sparse File LRU Cache

Ternary Search: Sparse File LRU Cache

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💥 Check out this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: An interesting file system feature that I came across a few years ago is sparse files. In short, many file systems allow you to create a logical file with "empty" (fully zeroed) blocks that are not physically backed until they get written to. Partially copying from ArchWiki, the behavior looks like this: The file starts at 0 physical bytes on disk despite being logically 512MB. Then, after writing some non-zero bytes at a 16MB offset, it physically allocates a single block (4KB). The file…
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list animals until failure

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🔥 Check out this insightful post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: list animals until failure This game requires JavaScript. Or, if you've superior taste, take out a pen and paper and start listing animals. List as many animals as you can. Animals must have Wikipedia articles. You have limited time, but get more time for each animal listed. When the timer runs out, that's game over. No overlapping terms. For example, if you list “bear” and “polar bear”, you get no point (or time bonus) for the latter. But you can still get a point…
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U.S. life expectancy hits all-time high

U.S. life expectancy hits all-time high

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🔥 Discover this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: January 29, 20262 min read Add Us On GoogleAdd SciAmU.S. life expectancy hits all-time highAmericans are living longer than ever but still well behind the life expectancy of other developed countriesBy Jeanna Bryner edited by Claire Cameron Amanda Montañez; Source: Centers for Disease Control and Prevention (data)The latest death data for the U.S. are in, and they paint an optimistic picture: The average American born in 2024 is now expected to live to age 79. That life expectancy is more than a half-year longer than…
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The Spacecraft That Wouldn’t Die

The Spacecraft That Wouldn’t Die

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🔥 Discover this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: A cursed rocket took off on February 27th of last year. And it left us with a mystery that had gone unsolved . . . until now.The rocket was a SpaceX Falcon 9. It launched from Florida and did what it was supposed to do. The problems arrived via the four payloads tucked inside of the rocket’s fairing. They were all meant to accomplish spectacular feats, although the space gods had other plans.The most attention-grabbing payload was the Nova-C lunar lander from Intuitive Machines. It…
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What we learned in 2025 – Wiki Education

What we learned in 2025 – Wiki Education

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✨ Explore this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Like many organizations, Wiki Education has grappled with generative AI, its impacts, opportunities, and threats, for several years. As an organization that runs large-scale programs to bring new editors to Wikipedia (we’re responsible for about 19% of all new active editors on English Wikipedia), we have deep understanding of what challenges face new content contributors to Wikipedia — and how to support them to successfully edit. As many people have begun using generative AI chatbots like ChatGPT, Gemini, or Claude in their daily lives, it’s unsurprising…
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