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Tracing the Ancestry of Common Unix Commands

2025-01-22

This article explores the origins of key commands within the Unix/Linux command-line hierarchy. From foundational Unix utilities like `cat`, `ls`, and `grep` to contributions from BSD, GNU, and other projects, the author meticulously traces the lineage of numerous tools. This provides a fascinating historical perspective on the evolution of these essential systems and will appeal to command-line enthusiasts and system developers alike.

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(darwinsys.com)
Development command-line tools

iText Suite 9.1 Released: Performance Boost and Enhanced SVG Support

2025-02-20
iText Suite 9.1 Released: Performance Boost and Enhanced SVG Support

Celebrating its 25th anniversary, iText releases iText Suite 9.1. This release massively expands SVG implementation in iText Core, improving text positioning, font handling, and adding support for relative size attributes. It also significantly boosts large table generation performance, especially when adding structural tagging, crucial for PDF/A and PDF/UA. The pdfHTML add-on benefits from the performance increase and now supports GraalVM Native Image compilation, enhancing flexibility in resource-constrained environments. Further improvements include enhanced digital signing capabilities, improved PDF/UA-2 support, and updates across various add-ons.

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(itextpdf.com)
Development

Argentine President's Memecoin Promotion Ends in $107M Insider Dump

2025-02-16
Argentine President's Memecoin Promotion Ends in $107M Insider Dump

Argentine President Javier Milei's tweet promoting a memecoin called Libra, touted as a project to boost the Argentine economy, led to a spectacular crash. The token initially soared, but within hours, insiders holding roughly 82% of the tokens dumped their holdings, cashing out approximately $107 million and causing a 95% price drop. Milei subsequently deleted his tweet and claimed ignorance of the project's details. The incident highlights the risks of memecoins and the potential for manipulation in highly concentrated markets.

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(www.web3isgoinggreat.com)
Misc Memecoin Market Manipulation

Frozen Solid: Minnesota Woman's Miraculous Survival

2025-02-18
Frozen Solid: Minnesota Woman's Miraculous Survival

In 1980, 19-year-old Jean Hilliard was found frozen solid after a car accident near Lengby, Minnesota. She had walked for help in -20 degree weather, only to be discovered unconscious and completely frozen on a rancher's doorstep. Against all odds, she miraculously thawed and awoke at a nearby hospital. Doctors, using only heating pads and prayers, managed to revive her from a state they believed to be almost beyond recovery. While medical science offers some explanation for her survival due to slowed metabolism in hypothermia, the speed of her recovery remains astonishing. Today, Hilliard lives a normal life, the incident shaping her caution towards winter driving rather than altering the course of her life.

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(www.mprnews.org)
Misc Miraculous Survival Hypothermia True Story

Django 5.2 Released: Composite Primary Keys and Simplified BoundField Overriding

2025-04-02
Django 5.2 Released: Composite Primary Keys and Simplified BoundField Overriding

Django 5.2 has been released! Key features include automatic model import in the shell, support for composite primary keys (using multiple fields as a primary key), and simplified BoundField overriding. Django 5.1 has entered security maintenance, while Django 5.0 has reached end-of-life. All users are strongly encouraged to upgrade to 5.2 for continued security fixes and bug patches.

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(www.djangoproject.com)
Development

Subaru Starlink Flaw Lets Hackers Unlock Cars, Track Location

2025-01-28
Subaru Starlink Flaw Lets Hackers Unlock Cars, Track Location

Security researchers discovered a critical vulnerability in Subaru's Starlink connected services, allowing hackers to access location data, remotely unlock doors, and more. By compromising Subaru employee accounts and exploiting an admin panel, attackers gained access to vehicle information. While the vulnerability has been patched, it highlights the serious security risks associated with connected cars.

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(jalopnik.com)
Tech Subaru

CodeCrafters' Lightning-Fast Interview Process: Get Hired in 2 Days!

2025-02-05
CodeCrafters' Lightning-Fast Interview Process: Get Hired in 2 Days!

CodeCrafters boasts a remarkably quick interview process, completing all steps within 1-2 days. It involves: a 15-30 minute introductory Zoom call to get acquainted; a 2-3 hour CodeCrafters challenge completed semi-live over Zoom, using your preferred language, focusing on problem-solving and code structure (practicing beforehand is allowed); and a final 30-60 minute Zoom call to discuss work history and timelines.

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(www.ycombinator.com)
Development interview process coding challenge fast hiring

House Subpoenas Google Over Biden Admin's Alleged Content Moderation Interference

2025-03-06
House Subpoenas Google Over Biden Admin's Alleged Content Moderation Interference

The U.S. House Judiciary Committee subpoenaed Alphabet (Google's parent company) to investigate communications with the Biden administration regarding content moderation policies. Chairman Jim Jordan also requested similar communications with outside groups. The subpoena targets content restrictions on topics such as Donald Trump, Elon Musk, COVID-19, and other conservative viewpoints. While Meta previously admitted to pressure from the Biden administration, Google denies similar actions, claiming its policies are independently enforced and committed to free expression.

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(ca.finance.yahoo.com)
Tech

My Correspondence with Edward Gorey: A Curious Friendship

2025-03-01
My Correspondence with Edward Gorey: A Curious Friendship

This article recounts a unique correspondence between the author and the illustrator Edward Gorey. From childhood fascination with Gorey's distinctive style to adult exchanges with the eccentric artist, the author shares their mutual interest in literature, art, and the macabre. Their letters, filled with whimsical observations, ranged from murder mysteries to bizarre recipes, from London's cheap bookstores to the behavior of zombies, showcasing Gorey's unique writing style and meticulous attention to detail. The article concludes with the author's account of the mysterious disappearance of Gorey's letters and the lasting presence of a cover Gorey designed, reflecting on the unpredictable connections in life.

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(www.tcj.com)
Misc Correspondence

DiscMaster 2: A Massive Upgrade to the CD-ROM Archive

2025-03-04

DiscMaster 2 is live! This project reprocesses millions of files from the old DiscMaster 1, adding support for over 3000 file formats and a vastly improved search engine. The new search boasts fuzzy matching, regular expressions, file hash searching, and dramatically increased speed. DiscMaster 2 also features improvements to file browsing, downloading, and display, resulting in a much more user-friendly experience.

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(discmaster.textfiles.com)
Misc data archive file format conversion

Planet's Daily Global Aircraft Detection from Satellite Imagery

2025-03-24

Planet has developed a daily global aircraft detection analytic feed using PlanetScope and SkySat imagery combined with machine learning. The system identifies aircraft ≥25 meters in length or wingspan, leveraging high-resolution SkySat imagery for improved accuracy. This technology offers valuable insights for defense, intelligence, and commercial sectors, enabling analysis of global air traffic patterns, economic trend prediction, and anomaly detection.

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(www.planet.com)
Tech Satellite Imagery Aircraft Detection

Handmade Cities and Handmade Network Part Ways

2025-02-04
Handmade Cities and Handmade Network Part Ways

Handmade Cities (HMC) and Handmade Network (HMN) have officially parted ways, though both sides report an amicable split. Fundamental disagreements over brand direction led to the separation. HMC will focus on improving programming skills, with future conferences featuring 80% classic engineering presentations and 20% dedicated to tech worker rights. The author also announced the launch of the native desktop terminal software, Terminal Click, and updated his personal website to abner.page.

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(handmadecities.com)
Development

SimpleWall: A Lightweight Alternative to Windows Firewall

2025-02-22
SimpleWall: A Lightweight Alternative to Windows Firewall

SimpleWall is a lightweight (<1MB) Windows firewall alternative compatible with Windows 7 SP1 and later. Based on the Windows Filtering Platform (WFP), it lets users create custom network rules, block Windows telemetry, and supports features like WSL. It boasts a simple interface, supports permanent and temporary rules, and requires manual filter disabling upon uninstallation. SimpleWall works independently of Windows Firewall and is free and open-source.

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(github.com)
Development windows

Affordable Vision-Based GNSS-Denied Strapdown Celestial Navigation for UAVs

2025-01-20
Affordable Vision-Based GNSS-Denied Strapdown Celestial Navigation for UAVs

This paper presents a low-cost, lightweight strapdown celestial navigation solution for Uncrewed Aerial Vehicles (UAVs) operating in Global Navigation Satellite System (GNSS)-denied environments. Utilizing a modular system with a stabilized imaging system and a low-cost Attitude and Heading Reference System (AHRS), the algorithm achieves position estimates within 4 km accuracy. By performing an orbital maneuver through a full compass rotation and averaging position outputs, biases inherent in the strapdown system are nullified. An iterative method for in-flight geometric alignment of the camera with the AHRS, without external position input, is also presented. The results demonstrate the potential for low-cost celestial navigation as a redundant navigation modality in affordable, lightweight drones.

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(www.mdpi.com)
Tech UAV Navigation Celestial Navigation GNSS Denial

The Ultimate Guide to File Watchers: A Comprehensive Overview

2025-02-12

This article provides a comprehensive list of file watching tools, covering various programming languages, licenses, and functionalities. From older inotify wrappers to modern tools written in Rust and Python like watchexec, the article meticulously compares each tool's pros and cons, dependencies, and Debian package support. The author also shares personal experiences and challenges encountered, such as using systemd .path units and the limitations of watchman. Developers and system administrators alike will find this resource invaluable in selecting the right file watching tool for their needs.

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(anarc.at)
Development file watching

SimplexDocsPlaygroundRequest API: Code Execution Preview

2025-01-15

The SimplexDocsPlaygroundRequest API provides code execution and preview functionality. Users submit code to the server via this API, which executes the code and returns the results, along with a preview of the execution process. This is useful for developers debugging code, testing APIs, and rapidly prototyping. The API is currently loading; results will be available after code execution.

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(www.simplex.sh)
Development Code Execution Preview

From Iowa Town to Silicon Valley Legend: The Rise of Bob Noyce and the Integrated Circuit

2025-03-05
From Iowa Town to Silicon Valley Legend: The Rise of Bob Noyce and the Integrated Circuit

This expansive piece chronicles the life of Bob Noyce, co-inventor of the integrated circuit, a true Silicon Valley legend. From his upbringing in a conservative Iowa town, to his exposure to transistors at Bell Labs, and finally his entrepreneurial triumphs in Silicon Valley, Noyce's life was filled with both opportunity and adversity. His unique management style, emphasizing teamwork and individual responsibility, shaped the very fabric of Silicon Valley's corporate culture. The narrative reveals Noyce's talent, perseverance, and the strong Puritan ethic that fueled his remarkable success, profoundly impacting the course of technological advancement.

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(classic.esquire.com)
Tech Integrated Circuit

Microsoft Unveils Majorana 1: A Breakthrough Topological Quantum Chip

2025-02-19
Microsoft Unveils Majorana 1: A Breakthrough Topological Quantum Chip

Microsoft has announced Majorana 1, the world's first quantum chip based on a novel Topological Core architecture. Leveraging a groundbreaking topoconductor material, it achieves more reliable and scalable qubits. This is poised to revolutionize quantum computing, potentially enabling industrial-scale problem-solving within years, not decades. The unique topological qubit design boasts inherent error resistance and digital control, paving the way for million-qubit quantum computers capable of tackling complex challenges such as microplastic degradation and self-healing materials.

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(news.microsoft.com)
Tech topological qubits

QuicklyPDF: Your All-in-One Online PDF Solution

2025-01-03
QuicklyPDF: Your All-in-One Online PDF Solution

QuicklyPDF is a free and easy-to-use online platform offering a comprehensive suite of PDF tools. From basic operations like merging, rotating, deleting, reordering, compressing, and extracting pages, to advanced features such as grayscale conversion and PDF repair, QuicklyPDF handles it all. It supports conversions between PDF and various formats including JPG, PNG, BMP, TIFF, Word, PowerPoint, TXT, and Excel. Security features include password protection and unlocking. Whether you're an individual or a business, QuicklyPDF streamlines your PDF workflow.

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(quicklypdf.com)
Misc PDF tools online tools PDF conversion

Deconstructing Complex Systems with Mereology: Beyond Simple Causality

2025-02-06

This article presents a novel approach to understanding higher-order structure in complex systems, based on mereology, a branch of set theory. Using the Borromean rings as an example, it illustrates how the whole can be more than the sum of its parts. The author proposes that by constructing a system's mereology and applying the Möbius inversion formula, macroscopic quantities can be decomposed into sums of microscopic contributions, revealing the nature of higher-order interactions. Examples from gene interactions and mutual information in information theory demonstrate the method's application, with promising implications for machine learning and physics.

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(abeljansma.nl)
AI higher-order structure Möbius inversion

Bootc: Build Your Own Atomic Linux Distro

2025-03-24

Tired of complex Linux distro configurations? Bootc lets you build an OS like an application! Using container technology, you can easily create atomic distros, ensuring consistent system operation. The article uses Nginx as an example to showcase Bootc's simplicity and introduces the Universal Blue project, which uses Bootc to build a desktop experience comparable to SteamOS. Bootc opens up new avenues for building stable and user-friendly Linux desktops, making it worth learning for all Linux enthusiasts.

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(sean.thrailkill.cloud)
Development Atomic Linux Container Technology

Soviet Hero: A Daring Rescue from the Depths of Lake Yerevan

2025-01-14

In 1976, Shavarsh Karapetyan, a Soviet swimming champion, witnessed a trolleybus plunge into Lake Yerevan. Ignoring the perilous icy water and pollution, he launched a daring rescue, repeatedly diving into the submerged vehicle to save dozens of passengers. This heroic act, suppressed by Soviet authorities, remained largely unknown until years later. Karapetyan's story is a testament to extraordinary courage and the power of human compassion.

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(grantland.com)
Misc Heroism Rescue

Lightweight Animation Library: Only 24.5KB, Supports Diverse Animation Effects

2025-04-03
Lightweight Animation Library: Only 24.5KB, Supports Diverse Animation Effects

A lightweight animation library called Animate boasts a mere 24.5KB size yet supports a variety of animation effects such as rotation, translation, and transformation. It provides powerful modules like Timeline, Draggable, and Scroll. Its clean API supports various easing functions and animation combinations, seamlessly integrating with WAAPI. Code examples showcase creating diverse animations, including path-based animations, scroll-triggered animations, and responsive animations.

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(animejs.com)
Development animation library

Guitaraoke: Automating Chord Generation for Karaoke Videos

2025-01-21
Guitaraoke: Automating Chord Generation for Karaoke Videos

To enhance his monthly Guitaraoke night, Dylan Beattie built a system that automatically displays song chords on karaoke videos. He uses the Vamp plugin to extract chord information from audio, then ImageSharp and FFMpegCore to generate a transparent video overlay with the chords, finally compositing this onto the original video. This involves audio analysis, image processing, and video composition, resulting in real-time chord display for guitarists. Future improvements include automatic beat detection and batch processing.

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(dylanbeattie.net)
Development Audio Processing

The Painful Luxembourg Visa Process: A Race Against Time

2025-01-22
The Painful Luxembourg Visa Process: A Race Against Time

The author, needing a visa to attend the LibreOffice conference in Luxembourg, faced a stressful visa application process due to a conflicting Kenya trip. The Luxembourg embassy's strict application timeline and lengthy processing created a dilemma. After numerous calls and emails, the embassy exceptionally returned the author's passport, allowing for the Kenya trip. The visa was ultimately granted, but only after a frantic race against time, highlighting flaws in the visa application process, particularly concerning communication and timely responses.

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(ravidwivedi.in)
Misc visa application Luxembourg

Tech's Misuse of the Pareto Principle: 80% Effort, 20% Product?

2025-01-23
Tech's Misuse of the Pareto Principle: 80% Effort, 20% Product?

In game development, the concept of a 'vertical slice' emphasizes completeness, while the tech industry's prevalent 'Minimum Viable Product' (MVP) prioritizes rapid iteration. The author argues that overemphasis on the Pareto Principle (80% of results from 20% effort) leads to many tech products remaining rough MVPs, lacking final polish and leaving users dissatisfied. This isn't just seen in apps and software but also impacts AI, like self-driving cars and image generation; these are promising but far from practical. The author calls for a shift in mindset, valuing completeness and user experience over rapid iteration and funding.

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(bobbylox.com)
Development Pareto Principle

Calculating Reciprocal Throughput in LLVM's Scheduling Model

2025-03-30

This post delves into the calculation of reciprocal throughput within LLVM's instruction scheduling model. LLVM's scheduling model describes an instruction with three key properties: latency, hardware resources used, and the number of cycles it holds each resource. While the traditional approach uses the maximum release cycle to calculate reciprocal throughput, this breaks down when non-zero acquire cycles are present. By analyzing resource segments and the instruction scheduling process, the author derives a new method: using the length of the longest segment across all hardware resources as the reciprocal throughput. This addresses the shortcomings of the traditional method when dealing with resource segments, providing a more accurate basis for performance optimization in the LLVM compiler.

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(myhsu.xyz)
Development Instruction Scheduling

Interactive Explanation of the DDA Algorithm: Unraveling the Geometry Behind Raytracing

2025-04-05

This interactive tutorial provides a clear and concise explanation of the Digital Differential Analyzer (DDA) algorithm, widely used in voxel raytracing. The author, drawing from personal experience, progressively derives the algorithm, demonstrating the entire process with editable code. From calculating the intersection points of a ray with a grid in 2D to extending it to 3D, the tutorial clearly explains the algorithm's principles and implementation details. Even beginners in geometric algorithms can easily grasp the elegance of the DDA algorithm.

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(aaaa.sh)
Development DDA algorithm raytracing geometric algorithm
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