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Borrow-checking without type-checking

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🚀 Check out this trending post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: This is a demo of a toy language with dynamic typing, inline values, stack allocation, interior pointers, single ownership, and a limited form of borrowing - less expressive than rust, but much more expressive than second-class references (eg we can express external iterators). Since there is no static typing the borrows must be checked dynamically. The interesting part of the demo is that we can do that fairly cheaply and with useful error messages. The code is here. background I'm exploring a style of…

Tempest vs Tempest | The Making and Remaking of Atari’s Iconic Video Game

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💥 Read this insightful post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: TEMPEST vs TEMPEST is a book-length attempt to explore and understand the code and craft of Dave Theurer's 'Tempest' (1981) and Jeff Minter's 'Tempest 2000' (1994). The idea is to explain how lots of different little things in each of the games actually work, down to the level of how they are implemented in the 6502 (Tempest) and 68K Motorola (Tempest 2000) assembler source code. I tried to keep it light and digestible so the book consists of lots of little chapters, each one presenting…

Bring Your Agent to Teams

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🚀 Read this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: You've already built the agent. It lives somewhere: a LangChain chain, an Azure Foundry deployment, a Slack bot. Your users live in Teams. Teams is where most enterprise work happens: decisions get made, customers get answered, and projects move forward there. Getting your agent into that context, before you build anything Teams-specific, is already worth doing. It comes down to one pattern in the Teams TypeScript SDK: the HTTP server adapter. You point it at your HTTP server, it registers a messaging endpoint, and your…

Approximating Hyperbolic Tangent

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✨ Explore this awesome post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Survey of fast tanh approximations using Taylor series, Padé approximants, splines, and bitwise manipulation techniques like K-TanH and SchraudolphThe hyperbolic tangent function, \( tanh \), maps any real number to the range (-1, 1) with a smooth S-shaped curve. This property is useful as an activation function in neural networks, where it introduces non-linearity while keeping outputs bounded, and in audio signal processing, where it provides natural-sounding soft clipping for saturation and distortion effects.In both contexts, speed matters. Neural network inference may evaluate \( tanh…

How to Stop A Data Center in Your Backyard ~ L.A. TACO

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🚀 Read this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: When the people of Monterey Park found that their local government was going to approve a 250,000-square-foot data center just 500 feet from their homes, they organized. And within a few months, the developer withdrew their application.Andrew Yip, an organizer with SGV Progressive Action, tells L.A. TACO that the organization’s success started with their “existing network of volunteers,” noting that “the community was able to jump in at a moment's notice.” SGV Progressive Action was founded in 2020 to “address the Black Lives Matter uprisings," Yip says.…

Introducing Parallel Agents in Zed — Zed’s Blog

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✨ Check out this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Zed now lets you orchestrate multiple agents, each running in parallel in the same window. The new Threads Sidebar lets you control exactly which folders and repositories agents can access, and lets you monitor threads as they run. All of this runs at Zed's famously buttery-smooth 120 fps, with whichever agents you like, and it's all open-source. Threads Sidebar and full-screen Agent Panel. The Threads Sidebar offers an overview of all your threads at a glance, grouped by project, so you can: Mix and…

Meet the Neon King of New Orleans – Garden & Gun

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🚀 Explore this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: If New Orleans has a siren song, it’s neon. The Hotel Monteleone’s signature rooftop sign smolders red against the skyline. Tropical Isle’s sinister green beckons revelers to brave its Hand Grenade cocktail. Retro pink script scrawls above the columns of the Uptown diner Camellia Grill, and the Joy Theater’s marquee electrifies Canal Street with nostalgic romance. But the art undergirding all that neon is a dying one. That’s where Nate Sheaffer comes in. Since opening his shop, Big Sexy Neon, in 2020, he’s worked to…

The Illuminated Man by Christopher Priest and Nina Allan review – an unconventional portrait of JG Ballard | JG Ballard

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✨ Explore this insightful post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: The writer JG Ballard, who died in 2009, is a tantalising subject for a biographer. His extraordinary childhood in prewar Shanghai, his family’s subsequent internment in a Japanese prisoner-of-war camp, and the death of his wife, Mary, at the age of 34, were formative events in the creation of his unique vision. The vivid and sometimes shocking images he witnessed in his early life would resurface repeatedly in his fiction.Yet he always resisted approaches from those keen to tell his story, and at the end of his…

Growing corn for energy or solar?

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💥 Read this trending post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Solar energy expansion is often viewed as a threat to US food security. And yet roughly 12 million hectares of US farmland—an area the size of New York State—is currently devoted to corn crops that are farmed not for food, but for fuel. In a new PNAS study, researchers ask a provocative question: why not transition some of this corn-for-ethanol farmland to significantly more efficient solar energy production instead? They find that populating just a tiny percentage of that land with solar panels would dramatically increase…

Coding Models Are Doing Too Much

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✨ Read this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Code for this post is available here.AI-assisted coding has become the norm and with tools like Cursor, GitHub Copilot, Claude Code, Codex, we are increasingly letting models touch our code. If you have used any of these tools in the past year, you have probably experienced something like this: you ask the model to fix a simple bug (perhaps a single off-by-one error, or maybe a wrong operator). The model fixes the bug but half the function has been rewritten. An extra helper function has…