Popular：
Virtualization DNS security formal verification reachability analysis compiler errors macro conflict web extension development framework Bitmap Graphics API inconsistencies All Tags

CHICKEN Scheme's New Compiler: CRUNCH – A Statically Typed Scheme Compiler

2024-12-17

This article introduces CRUNCH, a new compiler for a statically typed subset of the Scheme programming language. Built on top of the CHICKEN Scheme system, it compiles Scheme code into portable C99 code. CRUNCH aims to provide a high-performance, lightweight Scheme compiler, addressing shortcomings in existing Scheme systems regarding performance and portability. It's particularly well-suited for game development, virtual machine creation, and embedded systems programming. While CRUNCH has limitations in supported Scheme features, it achieves efficient code generation through type inference and various optimizations, seamlessly integrating with the CHICKEN Scheme ecosystem.

Read more
(www.more-magic.net)
Development Statically Typed

Open Source Software: A Cornerstone of Scientific Research

2025-06-04

This article explores the crucial role of open-source software in scientific research. The author argues that the freedom and reproducibility inherent in open-source software are essential for scientific progress, effectively addressing challenges in data processing, simulation, document preparation, and preservation. In contrast, proprietary software presents numerous risks, including restrictive licensing, software rot, and the inability to reproduce results. The article concludes by recommending several commonly used open-source software packages, such as GCC, GFortran, Julia, Typst, and Pandoc, and emphasizes the significant contribution of open-source software to scientific advancement.

Read more
(lwn.net)
Tech

arXivLabs: Experimenting with Community Collaboration

2025-05-29
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 are committed to arXiv's values of openness, community, excellence, and user data privacy. arXiv only partners with those who share these values. Got an idea to improve the arXiv community? Learn more about arXivLabs.

Read more
(arxiv.org)
Development

Fortescue's 'Infinity Train': A Self-Charging Battery-Electric Locomotive

2025-06-25
Fortescue's 'Infinity Train': A Self-Charging Battery-Electric Locomotive

Australian mining giant Fortescue, through its subsidiary Fortescue Future Industries (FFI), and Williams Advanced Engineering have unveiled an ambitious project: an "infinity train." This battery-electric locomotive utilizes regenerative braking to recharge its batteries downhill, eliminating the need for external charging infrastructure. The train is designed to transport iron ore between mine sites without needing recharging, aiming to replace diesel locomotives and significantly reduce emissions. While details are still emerging, the project's success hinges on sufficient downhill gradients for regenerative charging. FFI's broader commitment to green technology includes ammonia-powered ships and hydrogen fuel cell mining trucks, positioning them as a major player in the green energy transition.

Read more
(newatlas.com)
Tech

Outdated Laws Fuel Anti-Immigrant Violence in UK: Social Media's Role in the Southport Tragedy

2025-04-14
Outdated Laws Fuel Anti-Immigrant Violence in UK: Social Media's Role in the Southport Tragedy

A parliamentary investigation reveals how outdated laws hampered police efforts to counter disinformation on social media, exacerbating anti-immigrant violence in the UK last summer. Following the stabbing deaths of three children in Southport, false reports portraying the attacker as a recent Muslim migrant fueled days of rioting by far-right activists. Contempt-of-court rules and restrictions on naming underage suspects hindered the police's ability to correct misinformation, allowing false narratives to spread rapidly. The committee calls for government support to monitor social media and review contempt of court laws to address the challenges of the social media age.

Read more
(www.independent.co.uk)
Tech anti-immigrant violence

Rediscovering the Joy of Programming Through Toy Projects

2025-06-19

The author believes that creation is key to understanding. Instead of avoiding reinventing the wheel, build your own—it teaches you more than any book. In today's increasingly commodified software development landscape, the author advocates for building simple 'toy projects' to rediscover the joy of programming. The article lists numerous toy projects, such as a regex engine, an x86 OS kernel, and game emulators, rated by difficulty and time commitment, encouraging readers to try them and learn.

Read more
(blog.jsbarretto.com)
Development

Astro: A Content-First Web Framework That Redefines Speed

2025-07-09
Astro: A Content-First Web Framework That Redefines Speed

Astro, launched in 2021, is a game-changer in web frameworks. It prioritizes content and server-side rendering, shipping zero JavaScript by default for blazing-fast load times. Its unique 'Island Architecture' loads JavaScript only for interactive components, leaving the rest as static HTML. This results in significantly faster sites, improving SEO and user experience. It's incredibly versatile, letting you integrate React, Vue, or other frameworks seamlessly. If you're building content-heavy sites, Astro offers a compelling alternative, prioritizing speed and developer happiness.

Read more
(websmith.studio)
Development web framework

Python f-string Cheat Sheet: Mastering String Formatting

2025-08-21

This blog post presents a cheat sheet for Python's f-string formatting, covering various formatting options for numbers, integers, and strings, including fill, width, grouping, precision, and type. It also explores modifiers common to all objects, such as !s, !r, !a, and how to mix and match these modifiers with other format specifications. Whether you're working with numbers, integers, or strings, this cheat sheet empowers you to easily harness the power of Python f-strings, enhancing code readability and efficiency.

Read more
(fstring.help)
Development string formatting

X-37B's Secret Mission: A Quantum Leap in Space Navigation

2025-08-25
X-37B's Secret Mission: A Quantum Leap in Space Navigation

The US military's X-37B spaceplane, launching on its eighth mission in August 2025, carries a potentially revolutionary experiment: a quantum inertial sensor. This sensor uses atom interferometry to enable highly accurate navigation even where GPS is unavailable or compromised, such as deep space or underwater. Outperforming traditional inertial navigation systems in accuracy and stability, it holds significant implications for both military and civilian spaceflight, marking a crucial step towards real-world applications of quantum technology.

Read more
(www.space.com)
Tech GPS Alternative

China Retaliates Against US Tariffs, Escalating Trade War

2025-04-10
China Retaliates Against US Tariffs, Escalating Trade War

In response to new tariffs imposed by President Trump, China announced retaliatory tariffs on US goods, escalating the trade war between the world's two largest economies. Starting April 10th, China will impose an 84% tariff on all US imports. This follows the implementation of the steepest US tariffs in a century, bringing the total US tariffs on Chinese goods to 104% this year. The move significantly intensifies the ongoing trade conflict.

Read more
(www.bloomberg.com)
Tech

Space Crystals: Overcoming Earth's Gravity for Better Drug Discovery

2025-04-14
Space Crystals: Overcoming Earth's Gravity for Better Drug Discovery

Growing high-quality protein crystals on Earth is challenging due to gravity-induced sedimentation, convection currents, and impurity issues. In microgravity, however, these problems are significantly reduced, leading to more uniform and higher-resolution crystals. Studies show microgravity-grown crystals exhibit significant improvements in morphology, uniformity, and resolution, with major implications for drug discovery, food chemistry, and structural biology. Spark Gravity aims to lower the barrier to entry for protein crystal research by simulating microgravity environments, accelerating the research process.

Read more
(sparkgravity.com)
Tech protein crystals

Assembly Language: Still Relevant in the Age of LLMs?

2025-04-12
Assembly Language: Still Relevant in the Age of LLMs?

Even in the age of Large Language Models (LLMs), learning assembly language remains valuable. This article explores the relevance of assembly language, particularly in the context of DeepSeek's use of Nvidia's PTX intermediate language to accelerate networking operations. While high-level languages and LLMs can generate code, understanding assembly provides crucial insights into how computers work and aids in debugging higher-level code. The article compares seven assembly languages across different architectures (retro 6502, Z80, 8086, 68000 and modern x86-64, ARM, RISC-V), evaluating them based on learning materials, learning curve, ease of use, accessibility, and fun. Ultimately, RISC-V is recommended as the best option for beginners due to its clear learning path, abundant resources, and promising future.

Read more
(thechipletter.substack.com)
Development

Sleep Trackers: Are They Really Measuring What Matters?

2025-04-11
Sleep Trackers: Are They Really Measuring What Matters?

Affectable Sleep challenges the efficacy of sleep trackers. The article argues that trackers overemphasize sleep duration and consistency, neglecting sleep quality and restorative function. For example, a tracker might give a low score even if someone gets a short but deeply restorative sleep. Trackers fail to interpret the physiological mechanisms behind sleep, offering only post-hoc analysis and no real-time optimization. The article advocates focusing on the physiological and neurological processes of sleep rather than mere data, and calls for a new approach that prioritizes sleep quality over quantity.

Read more
(www.affectablesleep.com)
Tech

Global Tech Talent Map: Hot Tech & Job Locations

2025-01-28

HNHIRING's latest job trends report paints a picture of the global tech talent landscape. It lists the hottest programming languages, tech stacks, and job locations. The report reveals high demand for talent in cloud computing, AI, and big data, with North America, Europe, and parts of Asia emerging as tech talent hubs. This report is a valuable resource for job seekers and companies alike, offering insights into market demand and talent distribution.

Read more
(hnhiring.com)
Tech tech talent job trends tech stack

Bucket Integrates with Linear Agents: AI-Powered Feature Flag Management

2025-05-31
Bucket Integrates with Linear Agents: AI-Powered Feature Flag Management

Bucket has deeply integrated with Linear's Agents platform, creating an AI-powered feature flag management agent. This agent allows developers to create and manage Bucket feature flags directly within Linear issues, streamlining the development workflow through natural language interaction. Developers can create or modify feature flags simply by commenting in Linear; the AI agent automatically handles the operation and provides feedback. This integration aims to seamlessly integrate AI into the development process, enabling developers to deliver high-quality features faster and more efficiently.

Read more
(bucket.co)
Development

Penny-1.7B: A 19th-Century Irish Prose Style Language Model

2025-06-02
Penny-1.7B: A 19th-Century Irish Prose Style Language Model

Penny-1.7B is a 1.7 billion parameter causal language model fine-tuned with Group Relative Policy Optimization (GRPO) to mimic the 19th-century prose style of the 1840 Irish Penny Journal. A reward model distinguishes original journal text from modern translations, maximizing authenticity. Ideal for creative writing, educational content, or stylistic pastiche in Victorian-era Irish English, but not recommended for contemporary fact-checking.

Read more
(huggingface.co)
AI

Google Loses Privacy Lawsuit, Headed to Trial

2025-01-09
Google Loses Privacy Lawsuit, Headed to Trial

A federal judge refused Google's motion to dismiss a class-action lawsuit alleging privacy violations. The suit claims Google collected data from users who opted out of its Web & App Activity (WAA) tracking, even sending data to third-party developers via Google Analytics for Firebase (GA4F). The judge ruled a jury could reasonably find Google profited from this misappropriation of data, setting a trial for August 2025. Google maintains its practices are lawful, but the ruling highlights ongoing challenges for tech companies balancing data collection and user privacy.

Read more
(arstechnica.com)
Tech Data Collection

Philips Hue Bulbs Get Built-in Motion Sensing with Hue MotionAware

2025-09-05
Philips Hue Bulbs Get Built-in Motion Sensing with Hue MotionAware

Philips Hue announced a significant upgrade to its smart bulbs: built-in motion sensing. Hue MotionAware uses radio-frequency (RF) sensing to detect movement without extra sensors, leveraging the Zigbee signal between bulbs. This requires the new Hue Bridge Pro ($99) and works with most mains-powered bulbs from 2014 onward. MotionAware creates zones for motion detection, covering larger areas than traditional PIR sensors and integrating with Hue Secure for security features like flashing lights and alerts. While lighting automation is free, security notifications require a subscription.

Read more
(www.theverge.com)
Hardware Motion Sensing

Encrypted ZFS Backups with zfsbackrest: An Experimental Tool

2025-09-01
Encrypted ZFS Backups with zfsbackrest: An Experimental Tool

zfsbackrest is an experimental tool providing pgbackrest-style encrypted backups for ZFS filesystems. It requires the age tool for key generation; encryption is mandatory. It supports full, diff, and incremental backups, and offers cleanup for expired and orphaned backups. Restoring requires your age identity file (private key). zfsbackrest leverages zfs snapshots for backup and restore, without directly modifying zfs datasets.

Read more
(github.com)
Development

SkyRoof: Ham Satellite Tracking and SDR Receiver Software

2025-06-05

VE3NEA recently released SkyRoof, a Windows program combining satellite tracking and SDR receiver functionalities. Supporting RTL-SDR, Airspy, and SDRplay, it tracks and receives ham radio satellites, offering real-time tracking, pass prediction, a sky map, and an SDR waterfall display. It demodulates SSB/CW/FM, automatically compensates for Doppler shift, and interfaces with hamlib-compatible antenna rotators. Johnson's Techworld on YouTube features a SkyRoof test video.

Read more
(www.rtl-sdr.com)
Hardware Amateur Radio Satellite Tracking SDR Receiver

From Concept to 100 Units in 55 Days: A YC Demo Day Blitz

2025-09-19
From Concept to 100 Units in 55 Days: A YC Demo Day Blitz

A startup built Blue, a voice assistant controlled by a tiny USB-C device called Bud, enabling hands-free control of any phone app. They achieved this feat in just 55 days, culminating in 100 working units for YC Demo Day. Focusing on reliability over features, and leveraging a streamlined design and manufacturing process with a Taiwan partner, they bypassed the need for app-specific APIs, relying instead on iOS's Accessibility features. Their rapid development and successful Demo Day resulted in immediate sales, proving the market demand for their innovative product.

Read more
(farhanhossain.substack.com)
Hardware

Google's AI Summaries: A Threat to Web Traffic?

2025-07-23
Google's AI Summaries: A Threat to Web Traffic?

A Pew Research Center study reveals how Google's AI-generated search summaries are impacting user behavior. Nearly six in ten respondents used Google searches with AI summaries in March 2025. The study found users clicked on traditional search result links less frequently when presented with an AI summary, often opting to read the summary instead. This resulted in a decrease in clicks to external websites and an increase in users ending their browsing session after the search. While convenient, the summaries predominantly sourced information from a few websites like Wikipedia, YouTube, and Reddit.

Read more
(www.pewresearch.org)
Tech User Behavior

Sharing Is Scaring: The Unexpected Link Between Cloud File Sharing and Programming Language Semantics

2025-09-03

Users frequently struggle with cloud file-sharing applications. This study argues that these difficulties stem not just from poor interfaces, but also from a fundamental misunderstanding of the underlying semantics of actions like linking, attaching, downloading, and editing—mirroring challenges in grasping programming concepts such as aliasing, copying, and mutation. A user study reveals widespread misconceptions by mapping known programming-education misunderstandings onto similar file-sharing tasks. The researchers also developed a formal semantics of cloud file-sharing operations, providing a foundation for improved mental models, educational tools, and automated assistance. This formalization can support applications like trace checking and workflow synthesis.

Read more
(cs.brown.edu)
Development programming language semantics

lsds: A One-Stop Shop for Linux Block Device Settings

2025-05-09

Managing disks and I/O on Linux often involves running multiple commands like lsblk, lsscsi, and nvme list, then manually correlating their output. To streamline this, a Python program called `lsds` was created. It directly reads information from the `/sys/class/blocks/...` directories, consolidating key disk details into a single, easy-to-read output. This includes device name, size, type, scheduler, rotational flag, model, queue depth, number of requests, and write cache settings. `lsds` is highly customizable, allowing users to specify which columns to display and providing a verbose mode for tracing information sources. This tool significantly simplifies the complexity of managing Linux disks.

Read more
(tanelpoder.com)
Development disk management system tool

Shocking: 23% Failure Rate for 2020 Tesla Model 3 Inspections

2025-01-27
Shocking: 23% Failure Rate for 2020 Tesla Model 3 Inspections

A new report from the Danish automotive association FDM reveals a shocking 23% failure rate for 2020 Tesla Model 3 vehicles during their periodic inspections, significantly higher than the 9% average for other electric cars. The main issues were found in brakes, lights, wheels, and steering. FDM suggests this indicates quality and durability concerns with early Model 3s, recommending thorough pre-inspection checks. Tesla responded that significant improvements were made to the 2021 and later models.

Read more
(fdm.dk)
Tech Inspection

arXivLabs: Community Collaboration on Experimental Projects

2025-08-22
arXivLabs: Community Collaboration on Experimental Projects

arXivLabs is a framework enabling collaborators to develop and share new arXiv features directly on the website. Individuals and organizations involved embrace openness, community, excellence, and user data privacy. arXiv is committed to these values and only partners with those who share them. Got an idea to enhance the arXiv community? Explore arXivLabs!

Read more
(arxiv.org)
Tech

Decentralized Social Media vs. Censorship: Bluesky and the Fediverse

2025-05-05
Decentralized Social Media vs. Censorship: Bluesky and the Fediverse

This essay examines how decentralized social media platforms, like Bluesky and the Fediverse, handle government censorship. Bluesky's composable moderation services allow clients to choose which services to subscribe to, but its centralized architecture makes it vulnerable to government pressure. The Fediverse, with its interconnected network of independent instances, presents a far greater challenge to censors, requiring attacks on numerous nodes for effective blockage. The author argues that decentralized architecture without single points of failure is key to censorship resistance, but ongoing improvements are needed to withstand more powerful censorship mechanisms.

Read more
(www.tbray.org)
Tech

iPhone Agent: Control Your iOS Device with GPT-4.1

2025-06-02
iPhone Agent: Control Your iOS Device with GPT-4.1

PhoneAgent is an iOS app leveraging OpenAI's GPT-4.1 model to control your iPhone across multiple apps. By accessing the accessibility tree, it can perform tasks like sending messages, downloading apps, and making calls. It uses Xcode's UI testing framework, requiring no jailbreak, but is experimental and has known limitations, such as handling long-running tasks and animations. The app sends app content to the OpenAI API and communicates with UI tests via a TCP server.

Read more
(github.com)
Development

DeepSeek Infrastructure Profiling Data Released

2025-02-27
DeepSeek Infrastructure Profiling Data Released

DeepSeek is publicly sharing profiling data from its training and inference framework to help the community understand its communication-computation overlap strategies and low-level implementation details. The data, captured using the PyTorch Profiler, can be visualized directly in Chrome or Edge browsers. The analysis simulates a perfectly balanced MoE routing strategy and covers training, prefilling, and decoding phases. Different configurations (e.g., EP64/TP1, EP32/TP1, EP128/TP1) and micro-batching strategies are optimized for computation and communication overlap to improve efficiency.

Read more
(github.com)
Development Profiling
1 2 … 97 98 99 101 103 104 105 … 596 597