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RTABench: A New Benchmark for Real-Time Analytics Applications

2025-03-29

RTABench: A New Benchmark for Real-Time Analytics Applications

Traditional analytics benchmarks often overlook the needs of real-time applications, such as generating fast, targeted insights for specific users, devices, or transactions. RTABench addresses this gap by providing a benchmark that accurately reflects real-time analytics within applications, using a normalized schema, realistic dataset sizes, and queries that match real-world usage patterns. It includes 33 queries covering raw event queries, selective filtering, multi-table joins, and pre-aggregated queries to assess database performance on normalized schemas, selective filtering, and incremental materialized views. RTABench supports multiple databases and welcomes community contributions to expand its database support and optimizations.

(github.com)

Development real-time analytics database benchmark

Chile Air Quality Map: Real-time Monitoring, Protecting Health

2024-12-27

The Chile Air Quality Map is a real-time air quality monitoring platform providing accurate and reliable air pollution information to Chilean citizens. Users can visually see Air Quality Index (AQI) levels for different regions via the map interface and take appropriate precautions based on pollutant concentrations. This platform enhances public environmental awareness and provides data to support government policies on air pollution control, ultimately aiming to protect public health and create cleaner air.

(calidaddelairecl.vercel.app)

Tech air quality environmental monitoring

SQLite Page Explorer: A GUI for Peeking Inside Your Databases

2025-02-06

SQLite Page Explorer: A GUI for Peeking Inside Your Databases

A small GUI application, built with redbean, lets you explore your SQLite databases page by page, just as SQLite sees them. It's a single 6.5MB executable running natively on Windows, Linux, macOS, and more, offering insights into how indexes are stored, data compactness, and B-tree structures. While potential virus warnings exist due to the use of a polyglot executable, the project is trustworthy and offers a unique perspective for developers. It's a fun project that may be slow with larger databases.

(github.com)

Development

Wayland's Fragmentation: A Cross-Desktop Compatibility Nightmare

2025-06-17

Wayland's design omits basic functionality enjoyed by X11, Windows, and macOS applications for decades—like window positioning and mouse cursor control. This wasn't an oversight; it was intentional. Further compounding the issue is fragmentation: GNOME, KDE, and other compositors interpret Wayland protocols differently. Application developers can't rely on consistent implementations, leading to unsustainable support burdens, especially for niche applications on already-fragmented Linux. Worse, these problems reside in Wayland protocols, window managers, and compositors—beyond the reach of application developers. We hope the Wayland ecosystem matures, but we aren't there yet.

(www.kicad.org)

Development Cross-platform compatibility

Punch Cards: A Surprisingly Relevant Piece of Digital Humanities History

2025-02-12

This article explores the digitization and reuse of punch cards for knitting machines. Punch cards, a fascinating binary data storage format, are still used today. The article details methods for converting punch card images into data using computer vision and recreating punch cards using CNC machines. The author stresses the importance of high-quality scans and the need for standardized metadata to better preserve and utilize this valuable historical material and foster the transmission and development of knitting technology. The article also highlights the role of community-supported archives in preserving this legacy.

(blog.archive.org)

Misc Punch Cards Knitting Machines

Building a Robust Evaluation Framework for RAG Systems

2025-02-14

Building a Robust Evaluation Framework for RAG Systems

Qodo built a Retrieval Augmented Generation (RAG)-based AI coding assistant and developed a robust evaluation framework to ensure accuracy and comprehensiveness. Challenges included verifying the correctness of RAG outputs derived from large, private datasets. The framework evaluates the final retrieved documents and the final generated output, focusing on 'answer correctness' and 'retrieval accuracy'. To address the challenges of natural language outputs, they employed an 'LLM-as-judge' approach and built a ground truth dataset with real questions, answers, and context. For efficiency, they leveraged LLMs to assist in dataset construction and used LLMs and RAGAS to evaluate answer correctness. Ultimately, they built their own LLM judge and combined it with RAGAS for improved reliability, integrating it into their workflow with regression testing, dramatically reducing the effort to verify code changes' impact on quality.

(www.qodo.ai)

Development LLM Evaluation

Musk's Shadow Government: How DOGE Is Reshaping Federal Agencies

2025-02-07

Musk's Shadow Government: How DOGE Is Reshaping Federal Agencies

Under President Trump's authority, Elon Musk has deployed a clandestine team, dubbed the "Department of Government Efficiency" (DOGE), to infiltrate federal agencies. This team, comprised of employees from Musk's companies and allies, along with newly recruited young staffers, is seizing control from career civil servants and commandeering computer systems. Their actions have already disrupted numerous federal programs affecting millions. ProPublica's investigation reveals the identities and activities of several DOGE members, many attempting to conceal their roles. While the White House claims their actions are legal, concerns remain about transparency, accountability, and the growing influence of Musk within the government.

(projects.propublica.org)

Tech

The Apathy Epidemic: Why Doesn't Anyone Care Anymore?

2025-01-15

The Apathy Epidemic: Why Doesn't Anyone Care Anymore?

This rant explores the pervasive apathy in modern society. From malfunctioning software and poorly designed public infrastructure to everyday inconsiderateness, the author argues that a lack of care is rampant. While not necessarily malicious, this indifference stems from a failure to exert even minimal effort to improve things. The author laments this state of affairs and yearns for a community where caring is the norm, reflecting on their own attempts to inspire positive change and the challenges of living among those who seem unconcerned.

(grantslatton.com)

Misc apathy

DockView: Zero-Dependency Docking Layout Manager for React, Vue, and TypeScript

2025-01-11

DockView: Zero-Dependency Docking Layout Manager for React, Vue, and TypeScript

DockView is a zero-dependency docking layout manager supporting tabs, groups, grids, and split views. It works with React, Vue, and vanilla TypeScript. Features include serialization/deserialization, theming, drag-and-drop, popout windows, floating groups, a comprehensive API, and high test coverage. Built with security in mind, DockView uses GitHub Actions for verified publishing and builds. It boasts excellent documentation and live examples, making it a powerful and easy-to-use layout management solution.

(github.com)

Development Layout Manager

Arcan OS: A Revolutionary Approach to Operating System Design

2024-12-27

Arcan OS: A Revolutionary Approach to Operating System Design

Arcan is a single-user, user-facing, networked overlay operating system designed to provide users with complete autonomy over their computing devices. Independent of Linux or BSD kernels, it operates as a 'vagabond' across various ecosystems. Arcan utilizes a shared memory interface (SHMIF) and the A12 network protocol for efficient inter-process communication, employing 'frameservers' to isolate security-sensitive tasks. Its programmable interface ALT, Appl application model, and diverse user interfaces (Console, Durden, Safespaces) create a flexible and powerful system. Arcan aims to counter the network lock-in and security threats posed by large platforms, enhancing user autonomy and security.

(arcan-fe.com)

Development autonomy

Chirping Cosmic Waves Detected Far From Earth

2025-01-23

Chirping Cosmic Waves Detected Far From Earth

Scientists have detected 'chorus waves,' bursts of plasma sounding like birds chirping, from an unprecedented distance of over 62,000 miles from Earth. Previously observed closer to our planet, these waves, whose frequency matches human hearing, were detected by NASA's Magnetospheric Multiscale satellites. The discovery, published in Nature, raises questions about the physics involved and the role of Earth's magnetic field. While chorus waves are known to exist near other planets and potentially disrupt satellite communications, this distant detection is exciting and prompts further research.

(apnews.com)

Tech cosmic waves chorus waves space physics Chorus Waves Space Plasma Earth's Magnetosphere

Build Your Own Unsettling Vetinari Clock: A DIY Hack

2025-09-05

Inspired by Lord Vetinari's unsettlingly erratic clock from the Discworld series, a maker built a DIY clock with an irregularly ticking second hand. The project uses an ATtiny25 or PIC12F683 microcontroller and features open-source hardware and software designs. Clever firmware controls the clock, creating a seemingly random movement pattern over 32 seconds while maintaining accurate timekeeping. This fun project showcases embedded systems programming and provides complete hardware and software resources for replication and modification.

(www.waitingforfriday.com)

Hardware

Euclid Spots a Rare Einstein Ring in a Nearby Galaxy

2025-03-02

Euclid Spots a Rare Einstein Ring in a Nearby Galaxy

The European Space Agency's Euclid telescope has discovered a perfect Einstein ring – a ring-shaped optical phenomenon created by gravitational lensing – in the galaxy NGC 6505, a mere 590 million light-years from Earth. This is incredibly rare, as Einstein rings typically occur in much more distant galaxies. The discovery not only confirms Einstein's General Theory of Relativity but also provides valuable data for studying dark matter and stellar composition in the galaxy's center. Euclid's exceptionally long observation time and high-resolution imaging made this astonishing discovery possible.

(www.euclid-ec.org)

Tech

TinyKVM: Blazing Fast Single-Process Sandbox

2025-03-14

TinyKVM: Blazing Fast Single-Process Sandbox

A PhD student and game developer, alongside working on libriscv and an untitled game, created TinyKVM, a KVM-based single-process sandbox. TinyKVM runs static Linux ELF programs with near-native performance and incredibly low call overhead (around 2us). Leveraging hugepages for performance boosts, it supports GDB debugging and efficient VM resets, making it suitable for sandboxing Linux programs, even large language models (LLMs). TinyKVM boasts a minimal codebase, prioritizing security with a minimized attack surface. Future plans include Intel TDX/AMD SEV and AArch64 architecture support.

(info.varnish-software.com)

Development

Git's Large File Killer: The End of Git LFS is Nigh

2025-08-16

Large files have long been a thorn in Git's side. Git LFS, while a solution, introduced new complexities and costs. However, Git itself is gradually addressing this issue. The latest Git releases feature partial clones, offering the same benefits as Git LFS—fast clones and small checkouts—without the need for extra tools or server-side costs. Even more exciting, Git's large object promisors are under development, promising to eventually obsolete Git LFS entirely, making large file management simpler and more efficient. No more large file headaches!

(tylercipriani.com)

Development

Reverse Engineering Solos Smart Glasses: Displaying Arbitrary Images on a Retro Gadget

2025-09-04

A hacker successfully reverse-engineered the Solos smart glasses released in 2018 and managed to display arbitrary images on their screen. By analyzing Bluetooth packet captures, they discovered the communication protocol between the glasses and the smartphone app. Using a Python script, they RLE-encoded image data and sent it to the glasses, successfully displaying custom images. While some protocol details remain a mystery, this work demonstrates the customizability of the glasses and opens up possibilities for future development, such as displaying email subjects, weather forecasts, and more.

(jfloren.net)

Hardware

Threads: The Quietly Dominant X Replacement

2025-08-24

Threads: The Quietly Dominant X Replacement

Threads, Meta's text-based social media platform linked to Instagram and Facebook, has quietly amassed 400 million monthly active users, rivaling X (formerly Twitter). Its success stems from a focus on community engagement, a calmer atmosphere free from the drama plaguing X, and its ease of use. Interviews with several users highlight how its novelty and community-centric approach fostered vibrant groups, particularly around books and sports. While lacking some X features, Threads' scale, Meta's backing, and ActivityPub integration position it as a strong competitor with a potentially more decentralized future than Twitter ever had.

(mashable.com)

Tech

Near-Catastrophic OpenZFS Bug Highlights the Power of Rust's Type System

2025-07-11

Near-Catastrophic OpenZFS Bug Highlights the Power of Rust's Type System

A subtle yet devastating bug in OpenZFS's core disk allocation function was recently discovered. The bug, a simple type error resulting in the wrong size being returned, could silently overwrite data. It took nearly two days to track down. While the bug wasn't present in any released version, it spurred reflection on the limitations of static analysis in C and the advantages of Rust's type system. Rust's ability to define custom types (like `PhysicalSize` and `AllocatedSize`) would have prevented this. The author argues that relying solely on programmer perfection is flawed; leveraging tools and language features to improve code quality and mitigate hard-to-detect, high-impact bugs is key.

(despairlabs.com)

Development

Japan's New Law Challenges Apple's iOS Browser Monopoly

2025-08-06

Japan's New Law Challenges Apple's iOS Browser Monopoly

Japan's newly enacted Smartphone Act prohibits Apple's long-standing ban on third-party browser engines on iOS, mandating that Apple allow browsers like Firefox and Chrome to use their own engines instead of forcing them to use WebKit. This legislation aims to foster browser competition on iOS and ensure web apps have access to the APIs and performance needed to compete with native apps. The act also requires fair access to functionally equivalent OS APIs and a choice screen for browsers promptly after first activation. While the act is expected to take effect by December 2025, enforcement is likely to be a lengthy and complex process.

(open-web-advocacy.org)

Tech

FFmpegKit Officially Retired: Time Constraints and Legal Challenges Force Closure

2025-02-18

After years of development, the FFmpegKit video processing library is officially retired. The author, citing time constraints and the legal complexities surrounding FFmpeg licensing, can no longer maintain the project. Version 6.0, the last release, will be removed from download after April 1st, 2025. Users are advised to build FFmpegKit locally or find alternative solutions. This highlights the challenges of maintaining open-source projects and the importance of navigating complex licensing agreements.

(tanersener.medium.com)

Development

Human Genome's Unexpected Resilience: CRISPR Reveals Tolerance to Structural Changes

2025-02-19

Human Genome's Unexpected Resilience: CRISPR Reveals Tolerance to Structural Changes

Scientists have achieved the most complex engineering of human cell lines ever, revealing that our genomes are far more resilient to significant structural changes than previously thought. Using CRISPR prime editing, researchers created multiple versions of human genomes with various structural alterations and analyzed their effects on cell survival. The study, published in Science, demonstrates that substantial genomic changes, including large deletions, are tolerated as long as essential genes remain intact. This groundbreaking research opens doors to understanding and predicting the role of structural variation in disease, paving the way for new therapeutic and bioengineering approaches.

(phys.org)

AI Genome Structural Variation

Adversarial Policies Defeat Superhuman Go AIs

2024-12-24

Researchers achieved a >97% win rate against the state-of-the-art Go AI, KataGo, by training adversarial policies. These adversaries didn't win by playing Go well, but by tricking KataGo into making critical blunders. The attack transferred zero-shot to other superhuman Go AIs and was simple enough for human experts to replicate without algorithmic assistance. The vulnerability persisted even after KataGo was adversarially trained to defend against it, highlighting surprising failure modes in even superhuman AI systems.

(arxiv.org)

AI adversarial policies AI vulnerabilities Go AI

Metamorphic Rocks: Messengers from Earth's Depths

2024-12-27

Metamorphic Rocks: Messengers from Earth's Depths

This essay explores the incredible journeys of metamorphic rocks. Starting as humble seabed sediments, these rocks are buried deep within the Earth's crust, undergoing intense heat and pressure that transforms them into new mineral forms. Their eventual return to the surface provides invaluable insights into the planet's deep interior. The author vividly describes this transformation as an epic journey, highlighting the importance of metamorphism in plate tectonics and the crucial role of water in the process. The story also contrasts the ease of exploring space with the challenges of accessing Earth's subsurface.

(aeon.co)

Tech metamorphic rocks Earth science Metamorphic rocks

Meta's Internal Emails Reveal Obsession with Beating GPT-4

2025-01-15

Meta's Internal Emails Reveal Obsession with Beating GPT-4

Leaked internal emails reveal Meta executives and researchers were fiercely focused on surpassing OpenAI's GPT-4 while developing Llama 3. Messages show a strong desire to outcompete rivals, even dismissing open-source competitors as insignificant. Their ambition led them to use the LibGen dataset, containing copyrighted works, for training, now resulting in multiple copyright lawsuits. While the released Llama 3 proved competitive with leading closed-source models, even outperforming some, Meta's aggressive tactics highlight the intense competition and risks in the AI race.

(techcrunch.com)

AI AI race

Juvio: Reproducible Jupyter Notebooks with Inline Dependency Management

2025-05-20

Juvio: Reproducible Jupyter Notebooks with Inline Dependency Management

Juvio streamlines Jupyter Notebook workflow by tackling dependency management and Git integration. It allows installing packages directly within the notebook using `%juvio install`, saving dependencies as metadata (PEP 723). Juvio automatically sets up ephemeral virtual environments (using uv), ensuring reproducible results. The notebook is converted to a script-like format for cleaner Git diffs, eliminating the need for lock files or requirements.txt. This ensures reproducibility and simplifies version control.

(github.com)

Development

Pokemon Playtest Card Scandal: Tiny Yellow Dots Reveal 2024 Printing Date

2025-01-30

Pokemon Playtest Card Scandal: Tiny Yellow Dots Reveal 2024 Printing Date

A player named pfm discovered that most colored versions of Pokémon playtest cards contain tiny, invisible yellow dots. These dots encode metadata such as printer serial number, date, and time, revealing that many cards were printed in 2024, not 1996 as advertised. This discovery has raised questions about the authenticity of the cards and the grading company CGC, potentially resulting in significant financial losses for investors. Different quality cards have different dot patterns; some high-quality versions lack dots entirely. pfm's findings sparked widespread community discussion and have had a significant impact on the Pokémon card collecting market.

(www.elitefourum.com)

Game Pokemon Playtest Cards Forgery

Info Warfare: Truth and Digital Risks in the Next Conflict

2025-03-09

Info Warfare: Truth and Digital Risks in the Next Conflict

In war, truth is often the first casualty. In the next major conflict, virtually all information could be a victim. Over-reliance on digital communication exposes Western societies to significant risks, as seen in Ukraine's experience with Russia. Hacker groups (both military and criminal) have infiltrated television, the internet, and streaming radio, spreading disinformation, launching denial-of-service attacks, and jamming GPS signals, posing a serious challenge to societal narratives and stability.

(www.spectator.co.uk)

Tech information warfare digital risks

2024 Database Wars: Open Source Battles, Big Tech Acquisitions

2025-01-01

2024 witnessed a tumultuous year in the database world, marked by licensing disputes and fierce competition among tech giants. Redis and Elasticsearch faced significant community backlash after altering their licenses, ultimately reverting to open-source models. The Databricks-Snowflake rivalry extended beyond performance benchmarks, encompassing LLMs and data catalogs, driving innovation. DuckDB's ease of use and portability made it a go-to choice for analytical queries, leading to its integration into various systems. The year also saw releases like Aurora DSQL, CedarDB, and SQL-enabled Google Bigtable, alongside acquisitions of prominent players such as Alteryx and MariaDB. The article concludes with a narrative on Larry Ellison's 80th birthday, highlighting the immense wealth and intense competition within the database industry.

(www.cs.cmu.edu)

Tech databases competition

SQL NULLs: Breaking Your Intuition

2025-01-09

SQL's treatment of NULL values often defies expectations. This post reveals the surprising behavior of NULLs in unique constraint columns: multiple NULLs can coexist. Through practical examples in SQLite, Postgres, and MySQL, the author demonstrates how NULLs behave differently with the '=' and 'IS' operators, explaining the underlying reasons. Two solutions for ensuring uniqueness are explored: creating a generated column and using a partial index. Using a partial index is recommended as best practice, avoiding table size increases and potential errors.

(jirevwe.github.io)

Development

London Phone Theft: From Street to Algeria

2025-03-07

London Phone Theft: From Street to Algeria

Phone snatching in London is on the rise, with thieves using e-bikes to quickly steal phones and foil tracking efforts. Stolen devices end up globally, with Algeria emerging as a major destination, surpassing China. This article traces the journey of stolen phones, revealing a complex international criminal network and the black market for phone parts. It explores the challenges faced by law enforcement and phone manufacturers in combating this crime.

(www.londoncentric.media)

Tech phone theft international crime tech crime

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