Einsum: Beyond Matrix Multiplication

2025-01-06

Einsum is more than just matrix multiplication; it's an efficient implementation of Einstein summation convention. It uses concise notation to represent complex tensor operations, avoiding nested loops and improving code readability and performance. This article delves into the mechanics of Einsum, demonstrating its advantages in handling high-dimensional tensor operations such as matrix multiplication, transposition, and trace calculations with illustrative examples. For developers needing high-performance tensor computations, Einsum is an invaluable tool.

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GitHub Repos Masquerading as Legitimate Projects Used in New Malware Campaign: GitVenom

2025-03-03

Kaspersky's Global Research & Analysis Team (GReAT) uncovered a new malware campaign, dubbed GitVenom, utilizing hundreds of open-source repositories on GitHub. These repositories, deceptively disguised as legitimate projects (including tools for Instagram automation, Telegram Bitcoin wallet management, and a Valorant cheat), secretly download and execute malware. This malware steals passwords, bank account information, cryptocurrency wallet data, and more. The attackers successfully stole approximately 5 Bitcoin (around $485,000). The attackers used AI-generated descriptions to enhance the projects' legitimacy. Kaspersky advises developers to carefully vet third-party code before execution.

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Tech

AmigaDOS String Interpolation: Beyond {} Braces

2025-03-22

This blog post explores the flexibility and quirks of string interpolation in AmigaDOS shell scripts. While AmigaDOS defaults to using `<` and `>` for interpolation, it allows customization via `.BRA` and `.KET` directives. Experiments demonstrate the successful use of various character pairs, including printable and non-printable ASCII characters (like BEL and NAK). This highlights the robustness of the AmigaDOS script parser and its resilience in handling unusual input.

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Development string interpolation

Digital Echoes: The Unseen Costs of Constant Connectivity

2025-03-28
Digital Echoes: The Unseen Costs of Constant Connectivity

This essay explores the hidden psychological toll of our hyper-connected digital lives, focusing on the concept of "digital echoes." The author argues that the constant data collection by smart devices creates a pervasive sense of being monitored, transforming us into performers rather than participants in our own lives. Using smartphones and smart cars as contrasting examples, the piece highlights the difference in data generation and privacy implications. It advocates for a more mindful approach to technology, emphasizing single-function devices and analog alternatives to mitigate the negative effects of constant surveillance. The author concludes that future technological advancements should prioritize user privacy and focused experiences over ubiquitous connectivity and multitasking.

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Tech

eBPF-Go on Windows: A Developer's Guide

2025-03-27

This document details running the eBPF-Go library on Windows. Because eBPF on Windows is not yet stable, the library supports three modes: interpreter, JIT, and compilation to a native Windows driver. It explains differences from Linux, handling platform-specific ELF files, the exported API, development setup (using a Windows VM and build scripts), using pre-built binaries, and debugging and interpreting error codes. Debugging includes using WinDbg and interpreting the trace log. Error handling involves understanding Windows system error codes, RPC errors, ebpf_result_t, and Unix-style errno.

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Development

AI's Context Window: Why a Universal Standard is Needed

2025-04-01
AI's Context Window: Why a Universal Standard is Needed

Current AI models' knowledge is fixed during pre-training, with expensive fine-tuning offering limited updates. This leaves them blind to information beyond a cutoff date. This article explores "context" in AI: user input, conversation history, and external data sources, all constrained by a "context window." A universal standard for external data sources is crucial to overcome this limitation, enabling AI to access real-time information for improved intelligence and functionality.

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EU Unveils ProtectEU: A New Internal Security Strategy

2025-04-02
EU Unveils ProtectEU: A New Internal Security Strategy

The European Commission launched ProtectEU, a new internal security strategy addressing evolving threats. Key aspects include bolstering Europol into a fully operational police agency, tackling lawful access to data and encryption (a controversial move), and improving intelligence sharing via the EU's Single Intelligence Analysis Capacity (SIAC). The strategy acknowledges existing shortcomings in situational awareness and implementation of cybersecurity laws. Success hinges on member states' political will and cooperation, given the historically sovereign nature of national security matters.

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OpenAI's Reflections: A Rollercoaster Ride Towards AGI

2025-01-06

In a New Year's reflection, OpenAI CEO Sam Altman recounts the company's nine-year journey. From an underdog research lab to igniting the AI revolution with ChatGPT, OpenAI has experienced rapid growth and immense challenges. Altman shares insights into internal decision-making and his personal reflections on his unexpected firing, highlighting the importance of good governance and teamwork. He envisions the future of AGI and expresses confidence in its transformative potential, believing superintelligence will fundamentally reshape human society.

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AI

Open Source Licenses: A Balancing Act of Freedom and Responsibility

2025-03-28
Open Source Licenses: A Balancing Act of Freedom and Responsibility

This post challenges common assumptions about open-source licenses. The author, using their Windows tiling window manager, komorebi, as an example, argues that using an OSI-approved license isn't a prerequisite for success. komorebi, licensed under the non-OSI-approved Komorebi License, boasts 126k downloads and 10.6k stars on GitHub, with a steady stream of community contributions. The author believes sharing code shouldn't necessitate forfeiting the freedom to refuse involvement in harmful activities. They advocate for developers to reject dogma, choose licenses based on their needs, and share their experiences to foster a healthier open-source ecosystem.

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Development

fast-png: A JavaScript PNG Encoder/Decoder

2025-03-12
fast-png: A JavaScript PNG Encoder/Decoder

fast-png is a PNG image decoder and encoder written entirely in JavaScript. It offers options for CRC checking, custom image data, and text chunks. Install via npm and utilize its simple API for reading and writing PNG images. Licensed under MIT.

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Development

OpenBSD in Amsterdam: A Round Peg in a Square Hole

2025-04-02

The author's journey to connect an old laptop to the internet led to many failed attempts with various Linux distributions and other OSes, until OpenBSD finally worked. While known for its security and minimalism, OpenBSD presented a steep learning curve. Setting up a website proved challenging, like trying to fit a round peg into a square hole. The author ultimately succeeded in deploying their site using OpenBSD and shares their experiences, highlighting perseverance and the unexpected challenges of even the most secure systems.

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Development

Veloren Update Recap: Combat Overhaul, New Items, and Puzzles

2025-03-29
Veloren Update Recap: Combat Overhaul, New Items, and Puzzles

Veloren has seen a flurry of updates in recent months, introducing combat system improvements, shiny new items and equipment, plus puzzles and newspapers to add to the gameplay. The development team released three recap blog posts detailing these updates, covering combat refinements, new item additions, and engaging puzzle elements. These updates demonstrate Veloren's continued development and progress, enriching the player experience.

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arXivLabs: Experimenting with Community Collaboration

2025-03-25
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the website. Participants embrace arXiv's values of openness, community, excellence, and user data privacy. Got an idea to improve the arXiv community? Learn more about arXivLabs.

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Development

TruffleRuby Regexps: 200x Faster Than C and SIMD

2025-03-18
TruffleRuby Regexps: 200x Faster Than C and SIMD

This blog post explores performance optimization for JSON string escaping in Ruby. Benchmarks compare three approaches: a pure Ruby version, a C extension with SIMD instructions, and a pure Ruby version on TruffleRuby. Surprisingly, TruffleRuby's pure Ruby version, leveraging its advanced JIT compiler and TRegex engine, is 20 times faster than the C extension and SIMD, and over 200 times faster than the baseline C code in some cases. This stems from TruffleRuby's TRegex engine, which compiles regexps into deterministic finite automata, avoiding backtracking and utilizing SIMD instructions for optimization. Similar comparisons are shown for `Time.new(String)` and `StringScanner#scan_integer`, where TruffleRuby's regexp implementations significantly outperform CRuby's C implementations. This demonstrates that in some cases, concise pure Ruby code, combined with an advanced JIT compiler, can surpass the performance of lower-level languages.

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Development Regexps

The Million-Dollar Kickstarter Spoon Scam?

2025-03-16
The Million-Dollar Kickstarter Spoon Scam?

A Kickstarter campaign for Polygons, innovative origami measuring spoons, raised over $1 million in 2016, promising delivery by 2017. Years later, over a third of backers haven't received their spoons, sparking fraud accusations. Designer Rahul Agarwal acknowledges delays, insists it's not a scam, and projects delivery completion in 2025. This highlights the risks of crowdfunding and the importance of investor caution.

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Misc

mt32-pi Development Halted Due to Online Abuse

2025-02-17
mt32-pi Development Halted Due to Online Abuse

The developer of mt32-pi, a bare-metal MIDI synthesizer for the Raspberry Pi emulating the Roland MT-32, has announced the project's termination due to sustained online abuse. This includes personal attacks, code theft, and stolen 3D print designs. The developer cited the negative impact on their mental health as the reason for ceasing development, expressing a lack of gratitude and encouragement from the community.

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Development online abuse

Elegant UI Undo Stack Algorithm: Avoiding Indexing Errors

2025-03-26

This article presents a clever implementation of a UI undo stack algorithm. Instead of the traditional index-based approach, it uses two stacks (undoStack and redoStack) to manage undo and redo operations, neatly avoiding common indexing errors and off-by-one issues. The code is concise and easy to understand. The author addresses the pass-by-reference problem in JavaScript using `structuredClone()`, ensuring idempotency. A complete code example is provided.

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The Enduring Myth of the Celts: A Modern History

2025-03-21

Ian Stewart's 'The Celts: A Modern History' unravels the complex and often contradictory history of Celtic identity. From 18th-century scholarly rediscovery to the influence of nationalism and racism, and the rise of Pan-Celticism, Stewart traces the evolving image of the Celts. Challenging the notion that 'Celts' are a mere invention, the book explores how this identity has been shaped by academic debates, political movements, and social forces, revealing its enduring power and multifaceted nature.

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AI Website Builders Showdown: Fast, Professional Landing Pages, But Don't Expect Magic

2025-03-30
AI Website Builders Showdown:  Fast, Professional Landing Pages, But Don't Expect Magic

A seasoned designer tested four AI website builders – Cursor, v0, Lovable, and Bolt – to prototype a landing page for CodeYam software. The results? All tools (except Cursor) were easy to use and produced simple, professional results, but lacked groundbreaking design. Cursor was powerful but overly complex; v0 boasted a great UI and ease of use; Lovable excelled at content generation; and Bolt was too basic. Overall, these tools deliver fast, professional landing pages, but don't expect revolutionary designs.

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zlib-ng: A Next-Gen Data Compression Library

2025-03-16
zlib-ng: A Next-Gen Data Compression Library

zlib-ng is a modernized fork of the popular zlib compression library, improving performance, maintainability, and portability. It incorporates optimizations from Intel and Cloudflare, and supports a wide range of CPU instruction sets such as AVX-512 and ARM NEON. zlib-ng aims to coexist with zlib, offering a lower barrier to code changes and supporting CMake and multiple build systems.

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Development

Ubisoft Spins Off Assassin's Creed, Far Cry, and Rainbow Six into New Subsidiary Backed by Tencent

2025-03-27
Ubisoft Spins Off Assassin's Creed, Far Cry, and Rainbow Six into New Subsidiary Backed by Tencent

Ubisoft is restructuring after several challenging years, creating a new subsidiary focused on its flagship franchises: Assassin's Creed, Far Cry, and Tom Clancy's Rainbow Six. This subsidiary, backed by a $1.25 billion investment from Tencent (granting Tencent a minority stake), will consolidate development teams from various studios. This move allows Ubisoft to streamline operations and refocus on other IPs like The Division and Ghost Recon. The investment comes after cost-cutting measures and amidst recent struggles. While the company will continue developing multiplayer and free-to-play titles, the announcement emphasizes a renewed commitment to high-quality single-player experiences.

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Game Ubisoft

Cracked Sudoku: A New Sudoku Variant Based on Voronoi Diagrams

2025-03-13
Cracked Sudoku: A New Sudoku Variant Based on Voronoi Diagrams

Tired of traditional Sudoku? Cracked Sudoku is here! This new Sudoku variant uses irregular Voronoi diagrams as its game board. The rules remain familiar to Sudoku fans, but 'rows' and 'columns' are replaced by 'runs'—connected sequences of cells without repeating numbers. The shapes of these runs are determined by the Voronoi diagram, creating a unique solving experience. The author shares the design philosophy and algorithms, and calls for experienced puzzle constructors to collaborate on creating more sophisticated levels, injecting more vitality into this innovative game.

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arXivLabs: Experimenting with Community Collaboration

2025-02-21
arXivLabs: Experimenting with Community Collaboration

arXivLabs is a framework for collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those who share these values. Got an idea to enhance the arXiv community? Learn more about arXivLabs.

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Tech

Debugger as REPL: IntelliJ IDEA's Run to Cursor and Quick Evaluate Expression

2025-03-28

Tired of traditional debuggers, especially gdb and lldb's limitations with native code, the author discovered a powerful workflow in IntelliJ IDEA. Combining "Run to Cursor" and "Quick Evaluate Expression" transforms the debugger into a REPL. "Run to Cursor" executes the program to the cursor's position, while "Quick Evaluate Expression" lets you evaluate expressions (even newly typed code!) within the current stack frame. This approach replaces the line-by-line stepping with a more experimental, two-dimensional interaction within the editor, leveraging code completion and offering a significantly more efficient debugging experience.

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Development

Windows 3.1 on Modern Displays: A Generic SVGA Driver

2025-01-06
Windows 3.1 on Modern Displays: A Generic SVGA Driver

This project presents a modern, generic SVGA driver for Windows 3.1, supporting all available 8-bit, 16-bit, 24-bit, and 32-bit graphic modes. A rewrite of the original Windows 3.1 SVGA driver, it adds multi-byte pixel support, enabling Windows 3.1 to run in true color on modern high-definition displays. This solves compatibility issues for older hardware and enhances the experience for retro gaming enthusiasts.

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AI Boom Fuels Unexpected Tech Job Growth

2025-02-23
AI Boom Fuels Unexpected Tech Job Growth

Contrary to fears, the rise of artificial intelligence is projected to significantly boost tech sector employment. The U.S. Bureau of Labor Statistics forecasts a more than 10% increase in jobs within professional, scientific, and technical services—more than double the national average—between 2023 and 2033. This growth is driven by the increasing complexity of AI systems, demanding more skilled professionals for development and management. Data scientists, information security analysts, and computer research scientists are expected to experience some of the fastest job growth, exceeding 30% in many cases.

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Tech Job Growth

Wify: A React Native App for Effortless WiFi Connection

2025-03-16
Wify: A React Native App for Effortless WiFi Connection

Wify is a React Native application that simplifies WiFi connection by scanning images or using the camera to extract WiFi credentials. It supports OCR in multiple languages, uses fuzzy matching for WiFi names, and includes robust permission handling with user-friendly prompts. The app seamlessly connects to networks, even with minor discrepancies in names, making WiFi access quick and easy on both Android and iOS.

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Development WiFi Connection

100 Self-Driving Cars Tackle Rush Hour Congestion

2025-04-04
100 Self-Driving Cars Tackle Rush Hour Congestion

Researchers deployed 100 reinforcement learning (RL)-trained autonomous vehicles (AVs) onto a highway during rush hour to mitigate congestion and reduce fuel consumption. These AVs learned to smooth traffic flow, maximizing energy efficiency while maintaining throughput and safe operation around human drivers. The experiment demonstrated that even a small percentage of well-controlled AVs significantly improves traffic flow and fuel efficiency for all road users. This large-scale experiment provides valuable insights into deploying AVs to improve traffic conditions.

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Open-Source Morpho: Revolutionizing Soft Material Shape Optimization

2025-03-13
Open-Source Morpho: Revolutionizing Soft Material Shape Optimization

Researchers at Tufts University have developed Morpho, an open-source software designed to tackle shape optimization problems for soft materials. Unlike traditional software that excels with rigid materials, Morpho simulates the response of soft materials like biological tissues, engineered tissues, and shape-shifting fluids under force. This is crucial for applications such as designing artificial hearts, heart valves, and robotic materials mimicking human soft tissue. Morpho's ease of use and broad applicability are revolutionizing the field of soft material design.

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