Stubborn Feed Readers Bring Down Website

2024-12-22

A blogger experienced website unavailability, tracing it not to carriers or hosting, but to misbehaving feed reader software. These readers ignore best practices, sending unconditional requests and ignoring 429 errors (too many requests), ultimately causing the server to defensively shut down. The blogger resorted to a blog post urging users to check their feed readers, offering a tool called "Feed Reader Score" to analyze reader behavior and resolve the issue.

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Retrocomputing: Replacing a 386/486 CMOS Battery

2024-12-23
Retrocomputing: Replacing a 386/486 CMOS Battery

Older 386/486 motherboards often have leaky NiCd or NiMH batteries that can damage the board. This guide details a simple alternative: using three AA batteries and a battery holder. The author compares using a CR2032 and a Tadrian 3.6V Lithium cell, ultimately opting for three AAs due to ease of use, no motherboard modification, and the ability to use rechargeable batteries. Other replacement methods are mentioned, including using a CR2032 holder and Schottky diode, and utilizing an external battery header on the motherboard if present.

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Apple Secretly Enables AI Photo Analysis, Sparking Privacy Concerns

2025-01-03
Apple Secretly Enables AI Photo Analysis, Sparking Privacy Concerns

Apple silently enabled a feature called "Enhanced Visual Search" in iOS 18.1 and macOS 15.1, which analyzes photos for landmarks without explicit user consent. While Apple claims to use homomorphic encryption and differential privacy to protect user privacy, the lack of transparency and opt-in choice has sparked concern. Developers criticize Apple's lack of explanation and user notification, arguing the approach is even more intrusive than its abandoned CSAM scanning plan. Although no evidence suggests Apple violated its privacy statements, the lack of communication is the core of user discontent.

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Tech

Server-Sent Events (SSE): An Underrated Real-time Data Streaming Solution

2024-12-25
Server-Sent Events (SSE): An Underrated Real-time Data Streaming Solution

This article explores Server-Sent Events (SSE), a simpler and more efficient one-way real-time communication solution compared to WebSockets. SSE leverages standard HTTP protocols, making it easy to implement and deploy, compatible with existing infrastructure, resource-efficient, and featuring automatic reconnection. The article details SSE's workings, advantages, and application scenarios (like real-time news, stock tickers, progress bars, etc.), showing code examples with Flask and JavaScript. Furthermore, it analyzes how LLMs like ChatGPT utilize SSE for streaming responses and points out SSE's limitations, such as unidirectional communication and data format restrictions. In short, SSE provides an elegant solution for many applications requiring unidirectional real-time data streams.

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NetBox Launches New Network Discovery Agent for Faster Network Topology Building

2024-12-23
NetBox Launches New Network Discovery Agent for Faster Network Topology Building

NetBox Labs recently released a public preview of its NetBox Discovery agent. This fully open-source tool quickly and easily discovers networks and devices, ingesting information into NetBox to accelerate building a network source of truth centered around NetBox. Its agent-based architecture is ideal for complex network environments and works with NetBox Assurance to detect and remediate network drift. Currently supporting two discovery modes: network and device discovery, it integrates with the Diode data ingestion engine.

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Development Network Discovery

AI 'Street Photography' Isn't Photography: The Loss of Authentic Experience

2024-12-21
AI 'Street Photography' Isn't Photography: The Loss of Authentic Experience

This article argues that AI-generated 'street photography' is not true photography. While AI can create images resembling street photos, it lacks the essential elements of real photography: the capturing of actual light and moments, the engagement with strangers, and the inherent risks and rewards of real-world interaction. The author contrasts AI-generated images with their own experience in Brooklyn's Chinatown, highlighting the value of human connection, cultural exchange, and the discomfort and courage required for genuine street photography. The article ultimately warns against the collapse of meaning when simulated experiences replace authentic engagement with reality.

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Genesis: A Revolutionary Universal Physics Engine

2024-12-19

Genesis is a general-purpose physics platform designed for Robotics/Embodied AI/Physical AI applications. It's a multifaceted tool: a universal physics engine built from the ground up, simulating diverse materials and phenomena; a lightweight, ultrafast, Pythonic, and user-friendly robotics simulation platform; a powerful, fast photorealistic rendering system; and a generative data engine transforming natural language descriptions into various data modalities. Genesis aims to lower the barrier to entry for physics simulations, making robotics research accessible; unify state-of-the-art physics solvers; and minimize human effort in data collection and generation. The underlying physics engine and simulation platform are open-source, with the generative framework to be released soon.

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Fish Shell 4.0 Released: Rewritten in Rust for Enhanced Performance

2024-12-19

Fish shell, a command-line shell known for its user-friendliness and smart features, has released version 4.0. The biggest change is a complete rewrite of the codebase from C++ to Rust, resulting in improved modern computing efficiency. Version 4.0 also boasts many new features, such as more natural keybindings and enhanced history search, designed to make the command line experience easier and more enjoyable. To ensure stability, the project has released a public beta inviting all users to participate in testing.

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Development

Efficient German Language Learning: Is Anki the Answer?

2024-12-21
Efficient German Language Learning: Is Anki the Answer?

An engineer living in Germany for eight years confesses to still not knowing the language. To remedy this, they're trying Anki, leveraging spaced repetition to learn 10 new German words daily – aiming for C1 level proficiency within a year. They chose a frequency-ordered Anki deck, adding audio pronunciations themselves. The author invites readers to share their Anki experiences and German learning tips.

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From Animal 'Factories' to Synthetic Biology: A Revolution in Biopharming

2024-12-15
From Animal 'Factories' to Synthetic Biology: A Revolution in Biopharming

Historically, many medicines and materials relied on animal extraction, such as antivenom from horse blood, endotoxin detection from horseshoe crab blood, and silk from silkworms. This article traces the journey from ancient Phoenicians using snails to extract Tyrian purple dye to the modern use of biotechnology to synthesize insulin, antibodies, and vaccines. While synthetic biology technologies can now replace many animal-derived products, some areas still rely on animals due to regulatory lag, molecular complexity, and challenges in scaling production, such as influenza vaccine production. The article highlights the enormous potential of synthetic biology to improve efficiency and reduce animal use, but also reminds us of the importance of protecting biodiversity, as the development of biotechnology also relies on exploration and utilization of the natural world.

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Explaining Large Language Model Decisions Using Shapley Values

2024-12-28
Explaining Large Language Model Decisions Using Shapley Values

Large language models (LLMs) offer exciting possibilities for simulating human behavior, but their decision-making processes lack transparency. This paper introduces a novel approach based on Shapley values to interpret LLM behavior and quantify the contribution of each prompt component to the model's output. Through two applications, the study reveals that LLM decisions are susceptible to "token noise," where the model disproportionately reacts to tokens with minimal informative content. This raises concerns about the robustness and generalizability of insights from LLMs in simulating human behavior, highlighting the need for careful prompt engineering and a nuanced understanding of their limitations when used in research.

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Meta Fights Spam at Scale with Haskell

2024-12-22
Meta Fights Spam at Scale with Haskell

Meta's Sigma system, a crucial weapon in the fight against spam and malware, underwent a two-year overhaul. The system was rewritten in Haskell, a less common choice for large-scale production systems, achieving over one million requests per second. The shift to Haskell leveraged its pure functional and strongly typed nature, and the Haxl framework enabled automatic batching and concurrent data fetching. Performance improvements of 20-30% over the previous FXL-based system were observed. The project also involved significant contributions back to the GHC compiler, resolving several bugs.

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Development Spam Filtering

Savoy vs. Hollywood Swing: A Deep Dive into Style Myths

2025-01-03
Savoy vs. Hollywood Swing: A Deep Dive into Style Myths

This essay debunks common misconceptions surrounding the 'Savoy' and 'Hollywood' styles of Lindy Hop. Through meticulous analysis of vintage footage, the author reveals the diversity of styles among dancers of both regions, highlighting the influence of era, geography, and individual preferences. The article argues against simplistic labeling, emphasizing the unique qualities of each dancer and advocating for a deeper appreciation of stylistic diversity rather than rigid categorization.

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Starlink Sells Out in Zimbabwe Amidst High Demand

2024-12-17
Starlink Sells Out in Zimbabwe Amidst High Demand

Starlink's high-speed satellite internet service quickly sold out in Zimbabwe within weeks of its launch, driven by the country's slow, unreliable, and expensive traditional internet infrastructure. High demand led to sell-outs in major cities like Harare, and even spread to other African countries. Despite higher initial costs, Starlink's unlimited data and superior speeds are proving attractive to many, forcing local providers to lower their prices. While currently facing capacity issues in urban areas, Starlink's potential in rural and underserved regions is significant, boosting related industries such as installation services and accessory sales.

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EmacsConf 2024: A Smoothly Run Online Conference

2024-12-28

EmacsConf 2024 successfully concluded! This post, written by Sacha Chua, reflects on the conference's preparation, execution, and lessons learned. From the call for proposals to the final presentations, organizers cleverly used automation tools (Org mode, emacsconf-mail.el, Ansible, etc.) to boost efficiency and leveraged technologies like BigBlueButton and WhisperX for a smooth experience. While technical challenges (BBB server configuration, audio syncing) arose, they were effectively addressed. Sacha shares insights into time management, volunteer coordination, and future improvements, showcasing dedication to the open-source community.

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Development online conference

Caravan: A Flexible Transport-Based Logging System for JavaScript/TypeScript

2024-12-28
Caravan: A Flexible Transport-Based Logging System for JavaScript/TypeScript

Caravan is a flexible, transport-based logging system for JavaScript/TypeScript applications. It supports multiple transports (console, file, Datadog, BetterStack, etc.), log level filtering, context binding through forked loggers, and data redaction. Developers can easily log basic messages, metadata, and context-aware information, improving debugging and monitoring. Its TypeScript-first design enhances developer experience.

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Development logging system

W3C HTML Working Group: Driving HTML Standard Evolution

2024-12-26
W3C HTML Working Group: Driving HTML Standard Evolution

The W3C HTML Working Group is dedicated to bringing WHATWG's HTML and DOM review drafts to W3C Recommendations. This group comprises global experts collaboratively ensuring the continued evolution and improvement of HTML standards to meet the ever-changing needs of the web. The group features a defined mission, participation process, and patent policy, and regularly publishes updates and event information.

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Blackmagic Unveils $30K 3D Camera for Apple Vision Pro Video Capture

2024-12-19
Blackmagic Unveils $30K 3D Camera for Apple Vision Pro Video Capture

Blackmagic has announced its URSA Cine Immersive camera, priced at $30,000, available for pre-order with deliveries starting late in the first quarter of 2025. This is the world's first commercial camera system designed for capturing 3D content specifically for Apple's Vision Pro headset. Featuring a custom stereoscopic 3D lens system with dual 8K sensors, it captures 180-degree field of view video with spatial audio at up to 90fps. Each eye boasts 8160 x 7200 resolution and 16 stops of dynamic range.

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Hardware

Real-time ISS Urine Tank Monitor App Launched

2024-12-24
Real-time ISS Urine Tank Monitor App Launched

A developer has created pISSStream, a macOS menu bar app that displays the fill level of the International Space Station's urine tank in real time. While not perfect in terms of coding style, the app's unique concept provides a lighthearted look at a detail of life in space. The developer stated they will not be adding any other data, focusing solely on the urine tank's fill level.

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US Weighs Ban on TP-Link Routers Over Hacking Fears

2024-12-18
US Weighs Ban on TP-Link Routers Over Hacking Fears

The US government is considering a ban on TP-Link routers, a popular Chinese brand, due to national security concerns linked to cyberattacks. Investigations are underway by the Departments of Commerce, Defense, and Justice. TP-Link holds a 65% US market share, largely due to its low prices. A Microsoft report implicated TP-Link routers in ransomware and other cyberattacks launched by Chinese hackers. Investigators allege TP-Link fails to address vulnerabilities, and refuses to cooperate with cybersecurity experts. TP-Link claims its security practices meet industry standards and is committed to addressing US national security concerns. This action reflects broader US concerns about Chinese technology and efforts to restrict imports from China.

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Postgres Reads Causing Writes: MVCC, Page Pruning, and Hint Bits

2024-12-25

This article delves into the seemingly paradoxical behavior in PostgreSQL where simple SELECT queries can trigger data writes. Starting with the Multi-Version Concurrency Control (MVCC) mechanism, it explains concepts like row versions, pages, and tuples. Through code examples, it analyzes how hint bit updates and page pruning cause read operations to modify pages, ultimately leading to disk writes. The article also discusses the HOT update optimization strategy and uses page inspection tools to illustrate how data is stored and updated within pages.

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Development Database Performance

Spotify Shuts Down Artist Royalty Calculator Amidst Executive Stock Sell-Off

2024-12-28
Spotify Shuts Down Artist Royalty Calculator Amidst Executive Stock Sell-Off

Spotify CEO Daniel Ek's wealth soared this year after significant stock sales, while a calculator exposing Spotify's low artist payouts—Spotify Unwrapped—was shut down due to legal threats. The calculator highlighted the stark contrast between exorbitant executive compensation and meager artist earnings. Although the calculator is gone, its formula remains public, fueling debate about streaming service payment models. Meanwhile, multiple Spotify executives cashed out over $1.25 billion in 2024, following widespread layoffs and premium price hikes.

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Spotify's Shady Secret: Fake Artists and Inflated Play Counts Exposed

2024-12-21
Spotify's Shady Secret: Fake Artists and Inflated Play Counts Exposed

A year-long investigation reveals Spotify's deceptive practices. A program called "Perfect Fit Content" (PFC) involves partnerships with production companies to create and promote fake artists and tracks, artificially inflating play counts to reduce royalty costs and boost profits. These fake tracks, often ambient, classical, electronic, jazz, or lo-fi, are strategically placed in playlists designed for background listening. The Spotify CEO's significant stock sales around the time of the revelations further fueled controversy. This scandal raises serious concerns about transparency and fairness in the music industry, prompting calls for congressional investigation and a more transparent music streaming ecosystem.

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Bacteria: Tiny Organisms, Huge Impact on Earth and the Future

2024-12-13
Bacteria: Tiny Organisms, Huge Impact on Earth and the Future

This article unveils the hidden world of bacteria, revealing how these minuscule organisms have shaped the Earth and profoundly influence our future. From being among the first life forms on Earth 3.5 billion years ago, to the great oxygenation event and the formation of complex cells, bacteria's role is undeniable. Their astonishing diversity allows them to thrive in nearly every environment, forming intricate relationships with other life, including humans. Research into bacteria is revolutionizing our understanding of disease, the environment, and the future; harnessing their power offers potential solutions to major challenges like climate change, pollution, and infectious diseases.

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Yakari: Interactive Command Builder Simplifies Complex CLIs

2024-12-21
Yakari: Interactive Command Builder Simplifies Complex CLIs

Yakari is an interactive command-building tool designed to simplify complex command-line interfaces. It guides users through command construction step-by-step, eliminating the need to memorize complex syntax. Supporting various argument types, Yakari offers contextual help and command history, significantly improving CLI usability. Users can build and execute commands with simple shortcuts, making even intricate commands accessible.

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Development interactive interface

MongoDB's Proactive Approach to Data Corruption in the Cloud

2024-12-25

MongoDB Atlas, a global cloud database service, tackles the challenge of silent data corruption at petabyte scale. The article details MongoDB's software-level solutions, including checksum validation, leveraging indexes and replication, and utilizing redundant replicas for repair. This three-step process—proactive monitoring, precise pinpointing, and data repair—ensures data integrity even in the face of hardware failures or random errors. MongoDB's approach effectively shields customers from the complexities of hardware management, guaranteeing data reliability and security.

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Doodle Dreams: Bringing Your Drawings to Life

2024-12-27

Doodle Dreams is an app that transforms your hand-drawn doodles into animations. Simply draw your desired characters on paper, scan them using the app, and it will recognize and create animations. You can choose different backgrounds, music, and effects to make your doodles more vivid and engaging. This app is suitable for all ages; whether you're an experienced artist or a beginner, you can easily create your own animated works.

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INFP: An Audio-Driven Interactive Head Generation Framework for Natural Dyadic Conversations

2024-12-22

ByteDance introduces INFP, a novel audio-driven interactive head generation framework. Given dual-track audio from a dyadic conversation and a single portrait image, INFP dynamically synthesizes realistic agent videos with verbal, nonverbal, and interactive cues, including lifelike facial expressions and head movements. The lightweight framework is ideal for real-time communication like video conferencing. INFP uses a two-stage process: Motion-Based Head Imitation and Audio-Guided Motion Generation. The first stage projects facial communicative behaviors into a low-dimensional latent space, while the second maps dyadic audio to these codes, enabling audio-driven generation. A new large-scale dyadic conversation dataset, DyConv, is also introduced. INFP achieves superior performance and natural interaction.

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AI

A Curious Case of Slow USD Import in Blender

2024-12-22
A Curious Case of Slow USD Import in Blender

A developer encountered unexpectedly slow import times when importing USD scenes into Blender. Profiling revealed the bottleneck to be Blender's internal ID sorting function, `id_sort_by_name`. This function, expected to be O(N), degraded to O(N^2) due to the naming scheme in the USD files. By modifying the naming convention and optimizing the sorting algorithm, the developer reduced import times from 4 minutes 40 seconds to 8 seconds for smaller files. However, the underlying issue stems from Blender's requirement for sorted IDs, leading to suggestions for replacing the linked list with a Trie or hash table. This optimization highlights a common challenge in performance tuning: identifying and addressing unexpected complexity.

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Development

Build Your Own Virtual Machine: A Step-by-Step Guide

2024-12-26

This tutorial guides you through building your own virtual machine (VM) capable of running assembly language programs, such as 2048 or Roguelike games. Even if you're already a programmer, this project provides a deeper understanding of computer architecture and how programming languages work. The tutorial covers core VM concepts, the LC-3 architecture, instruction sets, trap routines, program loading, and more, with detailed code examples and explanations. The final code is approximately 250 lines of C, making it accessible to those with basic C/C++ knowledge.

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Development virtual machine
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