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The enshittification of Amazon paperback books · Alex Erhardt

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💥 Explore this trending post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: I was a pretty avid reader as a kid, but as I transitioned to adulthood, my ability to focus on the written page withered. It seems I’m not alone: PISA reports reveal unprecedented drops in reading ability, professors in elite universities claim that humanities students can’t finish books, and looking around me, it feels like there are fewer book readers than ever. Fingers point to excessive screen time, and in my case at least, it was certainly the primary culprit. A few years ago, however,…

A Visual Introduction to Machine Learning

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💥 Explore this must-read post from Hacker News 📖 📂 **Category**: ✅ **What You’ll Learn**: Finding better boundaries Let's revisit the 240-ft elevation boundary proposed previously to see how we can improve upon our intuition. Clearly, this requires a different perspective. By transforming our visualization into a histogram, we can better see how frequently homes appear at each elevation. While the highest home in New York is ~240 ft, the majority of them seem to have far lower elevations. Your first fork A decision tree uses if-then statements to define patterns in data. For example, if a home's elevation is…

Ageless Linux — Software for Humans of Indeterminate Age

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💥 Check out this must-read post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: FAQ Frequently Asked Questions Q: Is Ageless Linux a real operating system? It is as real as any operating system that identifies itself via /etc/os-release. The law does not define minimum technical thresholds for what constitutes an operating system. It defines an "operating system provider" as anyone who "develops, licenses, or controls the operating system software." We control the operating system software. The operating system software says it's Ageless Linux. QED. Q: Isn't this just Debian with a different name? Isn't Ubuntu just Debian…

groverburger/grobpaint: Somewhere between MS Paint and Paint.NET. Multiplatform by default. · GitHub

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🔥 Discover this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Somewhere between MS Paint and Paint.NET. Multiplatform by default. Paint.NET doesn't run on macOS. GrobPaint fills that gap: a lightweight image editor with layers, blend modes, and selection tools, built with web technologies and a tiny Python backend. The goal isn't to clone Paint.NET or compete with Photoshop. It's to have the tools you actually need without the bloat. Layers - add, delete, duplicate, merge, reorder, per-layer opacity and blend modes (16 modes) Tools - Pencil, Brush, Eraser, Fill, Eyedropper, Line, Rectangle, Ellipse, Text, Select,…

German Air Force offered operational UCCA by 2029

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🔥 Read this awesome post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: Brussels, Belgium, 13 March 2026 – Airbus is working at full throttle to offer the German Air Force an operational Uncrewed Collaborative Combat Aircraft (UCCA) system by 2029. In Manching, near Munich, the company is currently preparing the first two Valkyries it acquired from its US partner Kratos Defense & Security Solutions, Inc. (NASDAQ: KTOS) for their maiden flight with a sovereign European mission system. They are scheduled to fly later this year. The two companies are bringing their respective industry-leading capabilities to integrate,…

A most elegant TCP hole punching algorithm — Aul Ma’s research facility

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🚀 Read this insightful post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: TCP hole punching is a way to connect two computers behind NAT routers. The technique has a lot of requirements to work. Both sides must know each other’s WAN IPs They must know the right external ports to use They must connect at exactly the same time In practice this collapses to using STUN to lookup the WAN IP, doing NAT type enumeration and port prediction, synchronizing time with NTP, and having both sides exchange all the needed meta data (WAN IP, port predictions, future…

rack-mount hydroponics

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🚀 Explore this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: rack-mount hydroponics early 2026 i started growing lettuce in a spare server cabinet. this is, for many reasons, a terrible idea. here's how i did it. backstory for reasons i won't explain here (because i genuinely can't) we ended up with two whole 42u rack cabinets when we only really needed about 10u. also, it seems like the door frame for this room was installed after these were wheeled in so simply pushing the extra one out without taking it apart isn't going to work.…

SBCL Fibers: Lightweight Cooperative Threads

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🚀 Discover this must-read post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: This is a work-in-progress draft document describing lightweight userland cooperative threads for SBCL. The implementation is under active development and details may change. This is a living document — you can view its revision history. You can try it out on the fibers-v2 branch at github.com/atgreen/sbcl.Table of Contents#IntroductionMotivation: Why Fibers?Design GoalsTerminologyProgramming APICreating and Running FibersYielding and WaitingFiber Sleep and Timed WaitsFiber Parking (Condition-Based Suspend/Resume)Fiber JoinSpawning Fibers from FibersMulti-Carrier Schedulingrun-fibers (Simple, Blocking)start-fibers / submit-fiber / finish-fibers (Dynamic, Long-Lived)Fiber-Aware Blocking PrimitivesMutex AcquisitionCondition VariablesSemaphoresI/O (wait-until-fd-usable)sleep and wait-forFiber Pinning…

How Kernel Anti-Cheats Work: A Deep Dive into Modern Game Protection

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✨ Explore this insightful post from Hacker News 📖 📂 **Category**: 📌 **What You’ll Learn**: Modern kernel anti-cheat systems are, without exaggeration, among the most sophisticated pieces of software running on consumer Windows machines. They operate at the highest privilege level available to software, they intercept kernel callbacks that were designed for legitimate security products, they scan memory structures that most programmers never touch in their entire careers, and they do all of this transparently while a game is running. If you have ever wondered how BattlEye actually catches a cheat, or why Vanguard insists on loading before Windows boots,…

Tree Search Distillation for Language Models using PPO

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🔥 Check out this trending post from Hacker News 📖 📂 **Category**: 💡 **What You’ll Learn**: 03-01-2026 · Updated 03-03-2026 Game-playing neural networks like AlphaZero achieve superhuman performance in board games by augmenting the raw policy with a test-time search harness and distilling the stronger, augmented policy back into the network. Why aren’t similar techniques used in language modelling today? The DeepSeek-R1 authors mention they found limited success with MCTS; Finbarr Timbers has an excellent post on why they may have faced this problem, namely their choice of UCT instead of pUCT. The purpose of this post is to explore…