macOS CLI Tools: Stop Using ~/Library/Application Support!

2025-08-26
macOS CLI Tools:  Stop Using ~/Library/Application Support!

Many macOS command-line tools incorrectly store configuration files in ~/Library/Application Support, contradicting user expectations and the XDG standard. The article argues that popular libraries and dotfile managers adhere to the XDG standard, placing config files in ~/.config. The author contends that CLI tools should follow this convention for improved user experience and consistency; only GUI applications should utilize ~/Library/Application Support.

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DeepWiki: Your AI Coding Powerhouse

2025-08-26
DeepWiki: Your AI Coding Powerhouse

DeepWiki instantly transforms any GitHub repository into a navigable wiki, dramatically boosting AI-assisted coding efficiency. It offers fast and deep search modes, providing precise answers with source code links. The DeepWiki MCP server integrates seamlessly with AI IDEs like Claude and Cursor for real-time context querying. DeepWiki helps understand codebases, generate code snippets, evaluate open-source library security and licenses, and even assists with code reviews. Whether you're a beginner or an expert, DeepWiki is a powerful tool for efficient coding.

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Development

Scala Capture Checking: The Tech Behind a Failed Talk

2025-08-26

This article recounts the author's failed presentation on capture checking at Scala Days 2025 and the subsequent deep dive into the technology. Capture checking aims to solve the problem of values escaping their intended scope, such as premature closure of resources in try-with-resource patterns. Scala implements capture checking by introducing 'capture sets', a type system feature that allows marking a type and all values it captures. The article details capture sets, subtyping, syntactic sugar, and the mechanisms for capturing functions and classes, exploring capture set behavior in type parameters. Ultimately, the author argues that while capture checking involves many details, it's a largely invisible feature for most developers, improving Scala's safety and enabling wider capabilities usage.

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Development Capture Checking

Logic for Programmers: A Gentle Introduction to Sequent Calculus

2025-01-22

This post, the first in a series on logic, introduces sequent calculus as a powerful system for reasoning. Using Gentzen's notation, the author explains how to represent logical inferences symbolically, covering inference rules, derivation trees, and metavariables. The article compares sequent calculus, sequent natural deduction, and natural deduction, and touches upon one-sided sequent calculus and intuitionistic logic. Finally, it briefly introduces proof terms in intuitionistic logic and their connection to simply-typed lambda calculus.

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NYU 2024 Admissions Data Leak: Analysis of Admission Standards Post-Affirmative Action Ban

2025-03-22

A top-secret leak of New York University (NYU) 2024 admissions data reveals that NYU may have continued using race-based admissions criteria after the Supreme Court ruled affirmative action in college admissions illegal. The leaked data, including average SAT, ACT, and GPA scores for different racial groups, raises questions about the fairness of college admissions. The data has been mirrored on Proton and MEGA.

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Source Code of 90s Compression Algorithm Rediscovered

2025-07-01
Source Code of 90s Compression Algorithm Rediscovered

The source code for the LZEXE compression algorithm, dating back to 1990, has been unearthed. This algorithm is linked to the Kosinski compression format used in Sega Mega Drive games. While not the exact version used in the games, the discovery offers valuable insights into the compression techniques of classic games. The researcher's quest highlights the challenges and possibilities in recovering lost source code, especially for custom formats like Enigma and Nemesis, which remain elusive.

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Game

Debugging Area5150's "Lake" Effect: A Pixel-Perfect 8088 Emulator Saga

2025-05-19
Debugging Area5150's

This article details the author's journey in debugging the "Lake" effect from the Area5150 demo within their IBM 5150 emulator, MartyPC, using a bus sniffer and decoder. Initially, the author confesses to using title-specific hacks to emulate the "Wibble" and "Lake" effects. However, by delving into the intricacies of the IBM CGA, particularly its lack of a vsync interrupt, the author overcame the challenges. The article thoroughly explains how dynamic clocking, scanline polling, and a custom vsync interrupt were leveraged to perfectly emulate the "Lake" effect. It shares various problems and solutions encountered during debugging, including precise modeling of CGA registers, timer interrupts, and DMA logic. Ultimately, MartyPC successfully runs the "Lake" effect hack-free, showcasing the brilliance of emulation technology and a passion for retro computing.

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Development

India's 'De-Sinicization': A China-Dependent Electronics Revolution

2025-08-14
India's 'De-Sinicization': A China-Dependent Electronics Revolution

India's ambitious plan to displace China as the world's electronics manufacturing hub ironically relies heavily on Chinese companies for technology, manufacturing expertise, and operational models. Key Indian players, like Dixon Technologies, heavily depend on Chinese partners for crucial components and design. This dependence, despite significant government investment, casts doubt on the plan's long-term viability. The success hinges on maintaining stable commercial relations between India and China amidst escalating economic competition and geopolitical tensions – a considerable risk.

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Malicious nx Packages on npm: Credential Theft and System Shutdown

2025-08-27
Malicious nx Packages on npm: Credential Theft and System Shutdown

Multiple versions of the npm package 'nx' (including 21.5.0, 20.9.0, etc.) were maliciously compromised. An attacker used a stolen npm token to publish packages containing code that scans the user's file system, collects credentials (GitHub, system passwords, etc.), and uploads this information to a GitHub repository under the user's account. The malicious code also modifies the user's `.zshrc` and `.bashrc` files to execute `sudo shutdown -h 0` upon terminal launch, potentially shutting down the system. Affected users should immediately update their 'nx' package to the latest version and check their GitHub for compromised repositories. Nx has removed the malicious packages and implemented enhanced security measures, including mandatory 2FA and the new Trusted Publisher mechanism for all npm packages.

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Development

Implementing a Simple PEG Engine in Janet: 10 Lines to Parsing Power

2025-04-14

This post delves into the implementation of a Parsing Expression Grammar (PEG) engine in the Janet programming language. Starting with fundamental PEG concepts, the author demonstrates how to build a powerful PEG parser with surprisingly concise code. The core `match-peg` function is explained in detail, showing how to extend its capabilities through operator additions and recursion, culminating in an ISO 8601 date parser. While not without limitations, this implementation effectively illustrates the core principles and implementation of PEGs, providing valuable insights for those learning about PEGs and compiler design.

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Development

OpenAI's Stargate: AI Enters the Industrial Age

2025-05-23
OpenAI's Stargate: AI Enters the Industrial Age

OpenAI's Stargate project isn't just software; it's a $500 billion initiative building the infrastructure for an AI industrial revolution. The first site in Abilene, Texas, spans 900 acres, consumes 1.2 gigawatts of power, and cost $12 billion to construct, aiming to produce, distribute, and monopolize AI compute at a planetary scale. This involves controlling the entire AI supply chain from energy production and chip acquisition to model design, distribution, and monetization. This marks a shift from cloud computing to an energy-intensive industrial model, potentially reshaping capital markets, labor structures, and national security policy.

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AI Deciphers 2000-Year-Old Herculaneum Scroll: Unveiling Philodemus' Ethical Treatise

2025-05-11
AI Deciphers 2000-Year-Old Herculaneum Scroll: Unveiling Philodemus' Ethical Treatise

Using AI-powered 'virtual unwrapping', researchers have for the first time identified the title and author within a sealed Herculaneum scroll, PHerc. 172. The scroll has been confirmed as *On Vices* by the Greek philosopher Philodemus, an ethical treatise offering guidance on cultivating a virtuous life. This breakthrough, achieved by the Vesuvius Challenge and researchers from the University of Würzburg, earned them a $60,000 prize. While the author and title are clear, the scroll's precise place within the *On Vices* series (known to have at least 10 books) requires further investigation. This discovery offers valuable insights into Philodemus' ethical views and the complete *On Vices*, showcasing AI's transformative potential in humanities research.

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The Authentic Face of a VC: A Cautionary Tale

2025-06-13

The author recounts a story about the importance of authenticity in a speech, using a well-known VC as an example. This VC repeatedly emphasized his transparency and authenticity in an interview, but the author's friend (a female CEO) reveals a manipulative and deceitful side, using rumors and lies to achieve his goals. Ultimately, the VC's hypocrisy is exposed, and his reputation suffers. This story serves as a cautionary tale about the importance of discerning authenticity and avoiding those who only pay lip service to values.

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Startup Authenticity

MDN's Birthday: Cakes, Collaboration, and Community

2025-07-25
MDN's Birthday: Cakes, Collaboration, and Community

In the web world, exchanging cakes to mark milestones is a cherished tradition among browser makers. Microsoft famously sent cakes to Mozilla for Firefox releases, and now web.dev has gifted MDN a birthday cake, acknowledging MDN's significant contribution to the global developer community. Reaching millions of developers monthly and boasting over 100,000 contributors, MDN expresses gratitude to its passionate community, looking forward to 20 more years of empowering developers and building a better web together.

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Development

The Pitfalls of AI Code Generation: Ignoring Underlying Architecture

2025-06-20
The Pitfalls of AI Code Generation: Ignoring Underlying Architecture

This article explores the risks of blindly using Agile methodologies and AI code generation tools in software engineering. The author argues that current Agile practices overemphasize the speed of feature development, neglecting the underlying work of system maintenance and architecture. AI code generation tools excel at quickly producing surface-level features but fail to address underlying architectural issues. This is akin to building a house focusing only on decoration while ignoring the foundation, ultimately leading to system collapse. The author urges business leaders to value the underlying work of engineering, avoid sacrificing long-term stability for short-term gains, and suggests learning technical accounting methods to better understand and manage engineering teams.

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Development

Meta and Oakley Team Up for Performance-Focused Smart Glasses

2025-06-20
Meta and Oakley Team Up for Performance-Focused Smart Glasses

Meta and Oakley have unveiled the Oakley Meta HSTN, a limited-edition smart glasses model priced at $499, available for preorder starting July 11th. Additional Oakley models featuring Meta's technology will launch later this summer, starting at $399. The glasses boast a front-facing camera, open-ear speakers, and microphones, enabling music listening, calls, and Meta AI interaction. Meta AI leverages the camera and mics for answering questions about the wearer's surroundings and real-time language translation. Designed with athletes in mind, the Oakley Meta HSTN features IPX4 water resistance, double the battery life of Meta Ray-Bans (8 hours plus 48 hours from the charging case), and a 3K video-capable camera. Five frame and lens combinations are available, with prescription options. Meta aims to expand into the performance market, hinting at future product releases.

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Tech

pgstream: Cracking the Code on PostgreSQL Snapshot Performance

2025-07-06
pgstream: Cracking the Code on PostgreSQL Snapshot Performance

Recent pgstream releases have dramatically improved PostgreSQL snapshot performance. Initially, the write path was the bottleneck. By switching to bulk ingestion (COPY FROM) and deferring index creation, pgstream now outperforms pg_dump/pg_restore in snapshot speed. Further improvements to batch configuration ensure more stable and efficient snapshot handling across varied data sizes and table structures.

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Development

Lisp Interpreter in 99 Lines of C

2025-08-17
Lisp Interpreter in 99 Lines of C

This article presents Tinylisp, a Lisp interpreter implemented in a mere 99 lines of C code. Leveraging NaN boxing and clever C programming techniques, it boasts 21 built-in Lisp primitives, simple garbage collection, and a REPL. The author details its design, implementation, and extension possibilities, even providing examples of running it on a vintage Sharp PC-G850 pocket computer. Tinylisp's concise code is readily understandable and extensible, making it an excellent learning resource for both Lisp and C.

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Development

494x Faster Word Counting with SIMD and Threads

2025-08-17

This article details the author's journey in optimizing a word counting program, achieving a remarkable 494x speedup. Starting with a naive Python implementation (89.6 seconds), the author progressively improved performance using CPython's `re` module (13.7 seconds), a C scalar loop (1.205 seconds), and finally, SIMD instructions and multithreading (181 milliseconds). Each optimization step is explained, covering leveraging C extensions, efficient C loops, and multi-core CPU utilization. While multithreading yielded less than expected gains, the final version reached an impressive 5.52 GiB/s processing speed. The author invites readers to suggest further optimizations.

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Development

Lue: A Powerful CLI E-book Reader

2025-08-17
Lue: A Powerful CLI E-book Reader

Lue is a powerful command-line e-book reader supporting various formats like EPUB, PDF, TXT, etc. It features a modular TTS system, defaulting to Edge TTS but also supporting the offline Kokoro TTS engine. Lue boasts a rich terminal UI with customizable themes and full mouse/keyboard support, along with smart persistence features like automatic progress saving and cross-session continuity. It's cross-platform (macOS, Linux, Windows), multilingual (100+ languages), and offers intuitive navigation shortcuts. Users can easily customize voice, language, and filtering options via command-line arguments.

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Development

Claude vs. ChatGPT: A Tale of Two Memory Systems

2025-09-12
Claude vs. ChatGPT: A Tale of Two Memory Systems

This post compares the drastically different memory systems of Claude and ChatGPT, two leading AI assistants. Claude starts each conversation with a blank slate, searching conversation history only when explicitly invoked using `conversation_search` and `recent_chats` tools for keyword and time-based retrieval, offering a powerful tool for professionals. In contrast, ChatGPT, designed for a mass market, automatically loads memory components, building user profiles and providing instant personalization. These design choices reflect the different target audiences (professionals vs. general users) and product philosophies (professional tool vs. consumer product), highlighting the vast design space and future directions of AI memory systems.

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In Defense of C++: Still Relevant in 2025?

2025-09-17
In Defense of C++: Still Relevant in 2025?

This blog post refutes common criticisms of C++, arguing that its complexity is manageable, its age is irrelevant given continuous development (C++20, C++23), and its perceived unsafety is mitigated by modern tools and practices. The author contends that while a steep learning curve exists, the long-term benefits outweigh the initial challenges, particularly for systems programming and game development. Ultimately, the post emphasizes C++'s enduring relevance and widespread use in various applications, concluding that it remains a powerful and important language in 2025.

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Development

YouTube Premium Lite Expands to the US

2025-03-05
YouTube Premium Lite Expands to the US

YouTube is expanding its more affordable Premium Lite service to US users, offering ad-free viewing of most videos for $7.99 per month. In the coming weeks, it will also roll out to all users in existing pilot countries: Thailand, Germany, and Australia. This follows the success of YouTube Music and Premium, which boasts over 125 million subscribers globally (including trials). Premium Lite aims to provide users with more ways to enjoy their favorite content while generating additional revenue streams for creators and partners.

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America's Drone Lag: Why Commercial Markets Are the Key to Defense Innovation

2025-03-03
America's Drone Lag: Why Commercial Markets Are the Key to Defense Innovation

America's drone industry is hampered not by technological shortcomings, but by the FAA's outdated regulations stifling large-scale commercial drone adoption. In contrast, Europe's more permissive regulatory environment has fostered companies like Manna, whose commercial success underpins military applications. The article argues that a thriving commercial drone market would revitalize America's defense industrial base, driving down costs, accelerating innovation, and breaking free from reliance on established defense contractors, mirroring Lockheed's WWII success built on a foundation of commercial aviation. The author calls for the US to emulate European and Chinese approaches, streamlining regulations, and supporting commercial drone development to gain a future defense advantage.

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Tech defense

Food Delivery Consolidation: A Giant's Game

2025-07-14
Food Delivery Consolidation: A Giant's Game

The global food delivery market is undergoing massive consolidation. Five companies now control over 90% of the market, evidenced by high-premium acquisitions like Prosus's purchase of Just Eat Takeaway and DoorDash's acquisition of Deliveroo. This consolidation creates network effects, boosting efficiency, but will likely squeeze profits from drivers, restaurants, and ultimately, consumers. Expect fewer promotions, higher delivery and menu fees. However, technological advancements like robot delivery offer new growth avenues. For investors, Prosus and Uber present relatively lower valuations compared to DoorDash, making them attractive options.

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Security Expert Troy Hunt Falls Victim to Mailchimp Phishing Attack

2025-03-25
Security Expert Troy Hunt Falls Victim to Mailchimp Phishing Attack

Security expert Troy Hunt fell victim to a sophisticated phishing attack targeting his Mailchimp account. The attacker successfully gained access, exporting approximately 16,000 subscriber records containing email addresses, subscription details, IP addresses, and geolocation data. Despite immediately changing his password and contacting Mailchimp, Hunt expressed frustration at his own lapse in judgment and apologized to affected subscribers. The incident serves as a stark reminder that even security experts are vulnerable to phishing, highlighting the importance of robust multi-factor authentication and heightened security awareness.

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Tech

SiFive P550 Microarchitecture Deep Dive: RISC-V's Ambitious Step

2025-01-27
SiFive P550 Microarchitecture Deep Dive: RISC-V's Ambitious Step

This article delves into SiFive's P550 microarchitecture, a RISC-V processor core targeting high-performance applications. The P550 employs a three-wide out-of-order execution architecture with a 13-stage pipeline, aiming for 30% higher performance in less than half the area of a comparable Arm Cortex A75. The analysis compares P550 to the Cortex A75, examining branch prediction, instruction fetch and decode, out-of-order execution, and the memory subsystem. While the P550 shows weaknesses in areas like unaligned memory access, it represents a significant step forward for RISC-V. Though needing further refinement, the P550 demonstrates SiFive's progress towards high-performance general-purpose CPUs.

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Two AI Programming Paradigms: Dialog vs. Autonomous

2025-01-27
Two AI Programming Paradigms: Dialog vs. Autonomous

Eleanor Berger shares her experience with two primary approaches to AI-assisted programming: dialog-based and fully autonomous. Dialog-based programming involves interacting with AI assistants for advice, code completion, and suggestions. Fully autonomous programming relies entirely on AI to generate code, with the programmer only reviewing the output. Berger finds both methods valuable but difficult to mix effectively, as understanding code written by others (or AI) is challenging and error-prone. She explores strategies for combining the approaches, such as per-project or per-module separation. She predicts a future shift towards fully autonomous programming due to improving AI capabilities and the inherent inefficiency of manual coding in comparison.

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Development

Thousands Trapped After Myanmar Scam Center Rescue: A Humanitarian Crisis Unfolds

2025-03-10
Thousands Trapped After Myanmar Scam Center Rescue: A Humanitarian Crisis Unfolds

Thousands of young men and women rescued from Myanmar's scam centers find themselves trapped in overcrowded detention facilities, facing a humanitarian crisis. Despite a large-scale operation involving Thai, Chinese, and Myanmar authorities, repatriation efforts are slow, leaving many stranded without adequate medical care or food. The rescue highlights the rampant issue of cross-border cyber scams and the need for greater international cooperation to combat this criminal industry. Many victims, initially lured by promises of lucrative jobs, endured brutal conditions, including beatings and starvation, before their release.

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Michael Larabel: 20 Years of Linux Hardware Benchmarking

2025-03-09

Michael Larabel, founder and principal author of Phoronix.com, has dedicated himself since 2004 to enriching the Linux hardware experience. He's penned over 20,000 articles covering Linux hardware support, performance, graphics drivers, and more. Beyond writing, he's the lead developer of automated benchmarking software like the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org. A true pioneer in the Linux open-source world.

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Tech
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