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Troubleshooting ZFS: From Checksum Errors to Key Re-Parenting

2025-09-07
Troubleshooting ZFS: From Checksum Errors to Key Re-Parenting

This article serves as a troubleshooting guide for ZFS, covering common issues such as checksum errors, disk failures, snapshot recovery, and encrypted dataset manipulation. It details how to use `zpool status`, `smartctl`, and `zfs scrub` to detect and repair checksum errors; `zpool offline` and `zpool replace` to replace failed disks; `zfs rollback`, `cp`, and `zfs clone` for data recovery; and `zfs change-key` to change encryption keys, including explanations of encrypted dataset replication and key re-parenting. This guide empowers users to better understand and handle common ZFS problems, ensuring data safety and system stability.

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(klarasystems.com)
Development

EU Prepares $1B+ Fine for X, Citing DSA Violation

2025-04-06
EU Prepares $1B+ Fine for X, Citing DSA Violation

The European Union is reportedly preparing a massive fine, potentially exceeding $1 billion, against X (formerly Twitter) for violating the Digital Services Act (DSA). The penalty, expected this summer, would be the first under the new EU law. Regulators are considering calculating the fine based on the revenue of Elon Musk's other companies, like SpaceX. X has vehemently denied wrongdoing and claims to have complied with the DSA, vowing to fight the penalty, framing it as an attack on free speech. This move underscores the EU's assertive approach to regulating tech giants.

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(arstechnica.com)
Tech DSA

China Develops Ultralight Drone for Mars Exploration

2025-03-01
China Develops Ultralight Drone for Mars Exploration

A Chinese research team at Harbin Institute of Technology has developed a lightweight, air-ground dual-purpose drone weighing only 300 grams for Mars exploration. This innovative UAV boasts significantly improved endurance—over six times that of similar-sized traditional drones—achieving this through ground rolling via center-of-gravity shifting and dual contra-rotating coaxial rotors for flight. Researchers aim to showcase its long endurance and observational capabilities on Mars, with future applications envisioned for underground exploration. This differs from NASA's Ingenuity helicopter, which, while groundbreaking, ultimately suffered damage after 72 flights.

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(www.space.com)
Tech aerospace technology

C++26 Reflection: Building a High-Performance Struct-of-Arrays Vector

2025-05-09

This article demonstrates how to leverage C++26 reflection to implement a high-performance struct-of-arrays vector (SoaVector). By storing struct members in separate arrays, SoaVector avoids memory waste and improves access efficiency. The article details the implementation of SoaVector, including memory management, element addition, reading, and referencing. A comparison with a similar Zig implementation highlights the power and potential of C++26 reflection.

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(brevzin.github.io)
Development Struct-of-Arrays

Reinforcement Learning Algorithms from Sutton's Book

2025-05-06
Reinforcement Learning Algorithms from Sutton's Book

This GitHub repository provides code implementing algorithms and models from Sutton's renowned reinforcement learning textbook, "Reinforcement Learning: An Introduction." The code covers various model-free solvers, requiring only the definition of states, actions, and a transition function. Examples include a single-state infinite variance problem and a Monte Carlo Tree Search maze solver. While not optimized for production, it's a valuable resource for learning reinforcement learning and implementing algorithms from scratch.

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(github.com)
Development

Critical Ubuntu User Namespace Bypass Exploits Discovered

2025-03-29
Critical Ubuntu User Namespace Bypass Exploits Discovered

Qualys researchers have uncovered three critical security bypasses in Ubuntu 23.10 and 24.04's unprivileged user namespace restrictions. These bypasses, leveraging the aa-exec tool, busybox shell, and LD_PRELOAD technique, allow local attackers to create user namespaces with full administrative privileges, potentially exploiting kernel vulnerabilities. Canonical acknowledges these as limitations of their AppArmor defense, not vulnerabilities, and recommends administrative hardening steps such as enabling kernel.apparmor_restrict_unprivileged_unconfined=1 to mitigate the risks.

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(www.bleepingcomputer.com)
Development

Demonic Possession Predicted the Fall of the Carolingian Empire

2024-12-13
Demonic Possession Predicted the Fall of the Carolingian Empire

In the early 9th century, a Frankish courtier recorded a tale of demonic possession. The demon, Wiggo, confessed to destroying crops, livestock, and spreading plagues, blaming the Franks' sins and their rulers' many crimes. Wiggo described rampant greed, mutual suspicion among rulers, and lack of piety. This story mirrored the crisis of the Carolingian Empire: internal strife, economic instability, and famine. The courtier, Einhard, used this tale to subtly criticize the rulers' corruption and foreshadow the empire's decline.

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(www.smithsonianmag.com)
History Carolingian Empire Demonic Possession Medieval Europe

A Hierarchical Approach to Programming Languages and Multi-Language Development

2025-03-16
A Hierarchical Approach to Programming Languages and Multi-Language Development

The author proposes a four-level hierarchy for classifying programming languages based on typing and compilation: interpreted dynamically typed (e.g., JavaScript), interpreted statically typed (e.g., TypeScript), compiled with automatic memory management (e.g., Go), and compiled with manual memory management (e.g., Rust). The author argues that choosing the right level for different needs is crucial and proposes a language set comprising Rust, RustGC (a level 2/3 hybrid), and RustScript (level 4) to improve development efficiency and code performance. This set shares syntax and allows seamless calls between different levels, addressing issues of maintaining different toolsets and training personnel. The ultimate goal is to improve programming efficiency and code quality.

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(gist.github.com)
Development development efficiency multi-language collaboration

Apple's Clone Wars: A Story of Brand Identity and Licensing Gone Wrong

2025-09-06
Apple's Clone Wars: A Story of Brand Identity and Licensing Gone Wrong

This article recounts the dramatic history of Apple's relationship with Mac clone manufacturers. From initial crackdowns to a brief period of licensing and eventual abandonment, the story of Apple's clone program reflects the fragility of brand identity and the complexities of licensing strategies. The article examines numerous clone manufacturers, including Unitron, Power Computing, and UMAX, and their intertwined relationships with Apple. It analyzes the reasons behind the failure of Apple's clone program, ultimately attributing it to factors such as unclear market positioning, profit conflicts, and poor timing. This article is not just a piece of tech history, but a case study in business decisions and brand management.

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(tedium.co)
Tech Clones

Reverse Engineering Triumph: The LaserActive Emulator is Finally Here

2025-09-03
Reverse Engineering Triumph: The LaserActive Emulator is Finally Here

After 16 years of dedicated work, Sega fan Nemesis has finally released the first-ever emulator for the Pioneer LaserActive. This notoriously difficult console, known for its unique LaserDisc technology and complex video decoding, presented countless challenges. Nemesis overcame hardware failures, video capture and decoding issues, and more, ultimately achieving perfect emulation of LaserActive games within the Ares emulator. His achievement marks a significant milestone in game preservation.

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(www.readonlymemo.com)
Game game emulation

emdash: One Platform to Unite Your Remote Team

2025-02-27

Remote teams often struggle with scattered information across various tools. emdash solves this by centralizing communication, resources, and decisions. It features threaded discussions, integrated chat and video with AI-powered summaries and transcripts, and a powerful search function that spans multiple platforms. This ensures everyone stays informed and aligned, boosting team efficiency.

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(emdash.io)
Development remote collaboration team communication AI assistance

PostgreSQL Best Practices: Building a Robust and Reliable Database

2025-02-09
PostgreSQL Best Practices: Building a Robust and Reliable Database

This article outlines best practices for PostgreSQL databases, covering database design, performance optimization, security, backup and recovery, maintenance and monitoring, and development practices. From naming conventions and schema design to indexing strategies, query optimization, access control, password policies, backup strategies, and monitoring metrics, the article provides detailed guidance with code examples to help developers build a robust, efficient, and secure PostgreSQL database system. High availability configurations, including replication setup and load balancing, are also emphasized to ensure database system reliability and scalability.

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(speakdatascience.com)
Development

OpenMower: A DIY Smart Mowing Robot That Challenges the Status Quo

2025-08-19
OpenMower: A DIY Smart Mowing Robot That Challenges the Status Quo

Tired of robotic lawn mowers that randomly bump around? Clemens Elflein, a software engineer with experience in embedded programming and robotics, has launched the OpenMower project: a DIY smart mowing robot designed to be smarter, safer, and more affordable. Based on a modified YardForce Classic 500, it leverages the quality hardware and utilizes ROS for autonomous navigation, obstacle avoidance (currently under development), and rain detection. The project boasts basic mowing functionality with automatic recharging, and encourages community involvement through detailed documentation and a Discord server for support. Tech enthusiasts are welcome to join and contribute!

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(github.com)
Hardware

Phish: How a Jam Band Built a $120 Million Empire on Live Music

2025-03-19
Phish: How a Jam Band Built a $120 Million Empire on Live Music

Phish, a seemingly unassuming jam band, has generated over $120 million in ticket sales in just four years, surpassing many more mainstream artists. Their success story isn't built on album sales or radio play, but rather on a decade of relentless practice and organic growth cultivated in Vermont bars. They built a fiercely loyal fanbase through immersive live performances, unique improvisational jams, and a deep connection with their audience. This dedication, combined with a bootstrapped approach to the business, resulted in a sustainable and highly profitable model centered around live music experiences, making Phish a unique case study in the music industry.

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(priceonomics.com)
Misc live music

Real-Time Bidirectional Editing Between Code Editor and GUI via LSP Server

2025-07-02
Real-Time Bidirectional Editing Between Code Editor and GUI via LSP Server

A programmer built a proof-of-concept system using an LSP server to enable real-time bidirectional editing between any modern code editor and a GUI. Changes in the code editor instantly update the GUI, and vice-versa, solving a key limitation of existing code-based CAD systems. This allows users to leverage their preferred editors while enjoying real-time visual feedback. While currently a small demo, it showcases the potential of LSP servers for building more powerful code-based CAD tools.

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(jamesbvaughan.com)
Development LSP server code CAD

iNaturalist Project Update: 7000+ Observations and Growing!

2025-03-23
iNaturalist Project Update: 7000+ Observations and Growing!

After a two and a half year hiatus, an iNaturalist project focused on collecting the first ever photographs of each species has released a journal update. The project boasts over 7,000 observations and 2,000 members. The update reiterates the project rules: 1. Observations must be the first photos of that species ever taken anywhere; 2. Photos must be of a living organism; 3. Sexually dimorphic species or species with distinct life stages are eligible. The project thrives on user contributions and thanks numerous contributors, especially highlighting @borisb's significant contributions to beetle identification and advocacy for the project.

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(www.inaturalist.org)
Misc species records

Amazon's Kuiper to Power JetBlue In-Flight Wi-Fi Starting in 2027

2025-09-05
Amazon's Kuiper to Power JetBlue In-Flight Wi-Fi Starting in 2027

Amazon's Project Kuiper, its satellite internet service, has partnered with JetBlue to provide in-flight Wi-Fi starting in 2027. This marks Kuiper's first airline deal, aiming to compete with SpaceX's Starlink, which already boasts agreements with several major airlines. While Kuiper launched its first satellites in April and now has over 100 in orbit, it's still playing catch-up to Starlink's 8,000+ satellite constellation. Amazon showcased impressive gigabit download speeds using an enterprise-grade terminal, but real-world consumer performance remains to be seen. Initial customer access begins this year, with a wider rollout slated for 2026.

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(www.theverge.com)
Tech In-flight Wi-Fi

Noloco Hiring: Founder's Associate - Build AI Apps, No Code Required

2025-07-01
Noloco Hiring: Founder's Associate - Build AI Apps, No Code Required

Noloco, a remote-first company backed by Y Combinator and other top-tier investors, is hiring a Founder's Associate. This high-impact role involves assisting the CEO with daily operations, strategic planning, and special projects, encompassing finance, recruiting, team events, and more. The ideal candidate will have 1-3 years of experience in startups, consulting, or venture capital, exceptional communication and problem-solving skills, and a strong technical curiosity. You'll gain invaluable insight into early-stage company building and have a significant influence on the company's trajectory.

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(www.ycombinator.com)
Startup Founder's Associate

Mozilla Rewrites Firefox Terms of Use After User Backlash Over Data Rights

2025-03-04
Mozilla Rewrites Firefox Terms of Use After User Backlash Over Data Rights

Following user criticism of its updated Terms of Use, Mozilla has revised its policy for Firefox. The original terms were criticized for overly broad language, implying Mozilla claimed rights to user data inputted or uploaded to the browser, raising concerns about potential sale to advertisers or AI companies. Mozilla clarified this wasn't the intention, stating the changes don't alter its data usage practices. The revised terms specify that data access is solely for Firefox operation and doesn't grant Mozilla ownership. Mozilla also removed references to the Acceptable Use Policy and updated its online Privacy FAQ for clearer legal explanations.

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(techcrunch.com)
Tech User Privacy

C64 Coding Tricks: Drawing Two Lines in 34 Bytes

2025-04-16
C64 Coding Tricks: Drawing Two Lines in 34 Bytes

This article recaps the code optimization tricks used in a Commodore 64 coding competition. The challenge: create a C64 executable (PRG) that draws two lines using the fewest bytes possible. The article details the clever techniques employed by participants, including leveraging ROM subroutines, incremental screen pointer manipulation, self-modifying code, exploiting the power-on state, unconventional control flow, and bitpacked line drawing. The winning entry achieved an astonishing 34 bytes, showcasing impressive code optimization skills.

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(nurpax.github.io)
Development

Sidekick: A Powerful, Locally-Run LLM App for macOS

2025-03-11
Sidekick: A Powerful, Locally-Run LLM App for macOS

Sidekick is a native macOS LLM application that runs entirely locally, accessing your files, folders, and websites without needing extra software. Utilizing RAG technology, it handles vast datasets, supports multiple reasoning models including a code interpreter, generates images, and boasts advanced Markdown rendering capabilities, plus built-in writing assistant tools. Sidekick prioritizes simplicity and ease of use, operating entirely offline, with no conversation tracking, and an open-source approach for transparency.

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(github.com)
Development local LLM

Marginalia Search: A Privacy-Focused Search Engine, Rejecting AI and Cloud Services

2025-01-27

Marginalia Search has unveiled a redesigned website, emphasizing its commitment to user privacy. Prioritizing non-commercial content, it offers tools for both search and discovery, aiming to unearth lost websites. Built with simple technology, it eschews AI and cloud services, operating under an AGPL open-source license. Privacy is paramount, filtering tracking and adtech, with no user or search data shared. Logs are retained for a maximum of 24 hours and anonymized.

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(marginalia-search.com)
Tech

Mastercard Denies Responsibility for Steam's NSFW Game Removal

2025-08-04
Mastercard Denies Responsibility for Steam's NSFW Game Removal

Two weeks after Valve removed a large number of NSFW games from Steam due to pressure from credit card companies, and one week after Itch.io followed suit, Mastercard released a statement denying responsibility. Mastercard claims it allows all lawful purchases through its system, adhering to the rule of law. However, it also requires merchants to prevent Mastercard cards from being used for unlawful purchases, including illegal adult content. While the removed games are legal in the US, they may violate laws in other countries. Valve stated it attempted to communicate directly with Mastercard but Mastercard communicated with payment processors and acquiring banks instead, leading to the games' removal. This highlights the influence of payment processors and credit card companies on game content moderation and the impact of public pressure on the gaming industry.

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(www.pcgamer.com)
Game NSFW games

Interactive Web App: An Orwellial

2025-03-02

This post describes a heavily interactive web application requiring JavaScript. The author rejects the term 'Bluetorial,' instead dubbing it an 'Orwellial' and including a humorous GIF. This suggests the app is complex and interactive, far beyond a simple HTML interface.

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(bsky.app)
Development Interactive

American Cardinal Elected Pope Leo XIV

2025-05-08
American Cardinal Elected Pope Leo XIV

On May 8th, Cardinal Robert F. Prevost, a Chicago native, was elected the 267th Pope, taking the name Pope Leo XIV. He is the first North American to hold the papacy and was a leading contender before the conclave. The announcement was met with jubilant celebrations in St. Peter's Square. Pope Leo XIV, a long-time missionary in Peru holding dual US-Peruvian citizenship, is known for his work promoting church unity and combating clericalism. While facing past allegations of mishandling sexual abuse claims, investigations concluded there was insufficient evidence. His election marks a significant moment in Catholic Church history.

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(catholicreview.org)
Misc Catholic Church North America

Real-time SV2TTS: Transfer Learning for Multispeaker Text-to-Speech

2025-09-14
Real-time SV2TTS: Transfer Learning for Multispeaker Text-to-Speech

This open-source project implements real-time multispeaker text-to-speech (SV2TTS) synthesis using transfer learning from speaker verification, based on the author's master's thesis. It's a three-stage deep learning framework: creating a digital voice representation from short audio clips, then using this representation to generate speech from arbitrary text. While the project is older and may have lower quality than commercial alternatives, it supports Windows and Linux, with GPU acceleration recommended. Detailed installation and usage instructions are provided, along with support for various datasets.

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(github.com)
Development transfer learning

CppNorth 2025: Schedule's Live, Keynote Speakers Announced, and Volunteers Needed!

2025-06-12
CppNorth 2025: Schedule's Live, Keynote Speakers Announced, and Volunteers Needed!

CppNorth 2025 is shaping up to be a fantastic event! The schedule is now live, featuring keynote speakers Sheena Yap Chan and Kate Gregory (returning for her fourth year!). They're seeking volunteers for on-site and organizational roles. The conference will be held at the King Edward Hotel in Toronto. They received nearly 100 talk proposals and will select approximately 20% for the conference. Sponsors include JetBrains and Autodesk.

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(cppnorth.ca)
Development

DIY Exploded View of a Mechanical Watch: A Challenging Feat of Craftsmanship

2025-06-22

Inspired by a blog post explaining how mechanical watch movements work, the author decided to create a real-life exploded view model of a mechanical watch. He experimented with layered resin casting and other methods, ultimately settling on a technique using fishing line to suspend the parts and a single resin pour. He overcame numerous challenges, including resin shrinkage, air bubbles, and part fixation, continuously refining his technique. The project culminated in the creation of models from pocket watches to a clone of the ETA 2824 movement, demonstrating impressive craftsmanship and perseverance.

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(fellerts.no)
Hardware resin casting

True Parallelism in Software Development with AI Agents

2025-09-13
True Parallelism in Software Development with AI Agents

The author describes using Claude Code and multiple AI agents to parallelize the software development process. By delegating tasks to specialized agents (product manager, UX designer, software engineer, etc.), the author achieved lightning-fast parallelization from requirement planning to code implementation. The post highlights three core principles behind this approach: parallel execution, sequential handoffs, and context isolation, illustrating with examples how to apply it in various software development scenarios, such as building Stripe payment integration, generating codebase documentation, and performing large-scale automated refactoring. While this method requires managing costs and handling the non-deterministic nature of LLMs, it significantly boosts development speed.

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(zachwills.net)
Development Parallelization
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