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Zero-Downtime Database Migration Verified with PlusCal

2025-03-11

This blog post details how the author used PlusCal, a DSL for TLA+, and formal verification to ensure the correctness of a zero-downtime database migration. A PlusCal model was built simulating user Upsert, Delete, and Get operations on a database, along with a background migration process. By simulating a system without migration and one with migration, and verifying the consistency of Get operation results across all states, the author ensured the correctness of the migration algorithm. Formal verification helped in early detection of flaws, such as improper handling of TOMBSTONES, and highlighted the importance of atomic operations, like the atomicity of checking and inserting data during migration.

(biradarganesh25.github.io)

Development

Sole Maintainer of Popular Node.js Utility Raises Security Concerns

2025-08-28

Sole Maintainer of Popular Node.js Utility Raises Security Concerns

A Node.js utility, fast-glob, used by thousands of public projects and over 30 Department of Defense systems, is maintained solely by a Yandex employee residing in Russia. While fast-glob has no known vulnerabilities, its deep system access and the maintainer's affiliation with Yandex raise serious security concerns. Hunted Labs' report highlights the utility's 79+ million weekly downloads, exposing a vast attack surface. This incident underscores the critical importance of open-source security and the need to know who writes your code.

(www.theregister.com)

Tech geopolitical risk

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.

(www.theverge.com)

Hardware Motion Sensing

Stop Killing Games: The Future of Game Ownership and Digital Rights

2025-07-05

The author recounts their experience of YouTube taking down a video on self-hosting and buying a new dishwasher only to find its functionality locked behind an app requiring WiFi and a Bosch account. This sparked reflection on digital product ownership, especially in gaming. They point out that more and more games rely on DRM and online connections, resulting in shorter game lifespans and players losing long-term ownership. The article calls attention to the "Stop Killing Games" initiative, hoping to change game design and sales models to protect player rights and restore the meaning of actually "owning" a game.

(www.jeffgeerling.com)

Game

Go Scheduler: From Humble Beginnings to a Powerful Engine

2025-05-21

Go Scheduler: From Humble Beginnings to a Powerful Engine

This blog post delves into the evolution of Go's scheduler, tracing its journey from an inefficient single global run queue to the highly performant GMP model (Goroutine, Machine, Processor). It details the roles and mechanisms of each component in the GMP model, including goroutine creation, preemption, system call handling, and the role of netpoll in network and file I/O. Cooperative and non-cooperative preemption mechanisms are explained. By dissecting the Go runtime source code, readers gain a deeper understanding of Go's concurrency model, enabling them to write more efficient concurrent programs.

(nghiant3223.github.io)

Development Scheduler

The Five-Week Solo Startup: A Mad Dash to Launch

2025-03-16

The Five-Week Solo Startup: A Mad Dash to Launch

This article outlines a five-week plan for launching a startup, not promising overnight success but offering a framework for rapid iteration. It emphasizes personal development for founders (communication, networking), securing a first paying customer, continuously improving the product and service, and securing funding. The plan covers marketing, team building, and aims to establish a sustainable business model.

(taylor.town)

Startup Business Model Rapid Launch

Stop Wasting Your Time on Unprofitable Work!

2025-04-07

Many engineers focus on non-profit work like performance improvements and accessibility, only to be laid off for not being valued. The article argues that tech companies are driven by profit, and an engineer's value is directly tied to their work's contribution to that profit. The author advises engineers to understand their company's business model, connect their work to profitability, and thereby secure their position. Even seemingly unprofitable work can generate value at scale in large companies.

(www.seangoedecke.com)

Development engineer career development

Legal Battle to Save Historic Haiku Stairs

2024-12-21

Legal Battle to Save Historic Haiku Stairs

The demolition of Oahu's iconic Haiku Stairs is facing legal challenges. Friends of Haiku Stairs filed a lawsuit, arguing the city and state agencies failed to comply with historic preservation regulations, citing a 1999 covenant protecting the stairs' existence. The city counters that proper procedures were followed, and the demolition was necessary due to safety concerns and resident complaints. A judge will soon issue a ruling, leaving the stairs' fate uncertain.

(www.civilbeat.org)

Misc historic preservation lawsuit Haiku Stairs

Academic Ties to Meta: Author Disclosures Spark Debate

2025-04-21

Academic Ties to Meta: Author Disclosures Spark Debate

Authors of a National Bureau of Economic Research paper have disclosed extensive financial ties to Meta, including direct research funding, consulting work, and attendance at Meta-sponsored events. The disclosures raise concerns about academic independence and potential conflicts of interest, highlighting the complex relationship between tech giants and academia.

(www.nber.org)

Misc

Reverse Engineering a 1991 Winter Olympics Game: Unpacking Copy Protection and Anti-Debugging

2025-04-28

A computer scientist, driven by nostalgia for a childhood DOS game, "The Games: Winter Challenge", embarked on a reverse engineering journey. He discovered the game employed a code wheel copy protection mechanism and anti-debugging measures, with multiple releases and cracks existing. Deep analysis unveiled the code wheel check's intricacies, revealing hidden copy protection checks that subtly break gameplay. He successfully bypassed all copy protection, fixing broken versions available on GOG and elsewhere, and shared his patching tool.

(mrwint.github.io)

Game game cracking copy protection

Anthropic Unveils Claude 3.7 Sonnet: A Hybrid Reasoning Model Blending Speed and Depth

2025-02-24

Anthropic Unveils Claude 3.7 Sonnet: A Hybrid Reasoning Model Blending Speed and Depth

Anthropic has launched Claude 3.7 Sonnet, its most advanced language model to date. This hybrid reasoning model offers both near-instant responses and extended, step-by-step thinking, providing users with unprecedented control over the model's reasoning process. Showing significant improvements in coding and front-end web development, it's accompanied by Claude Code, a command-line tool enabling developers to delegate substantial engineering tasks. Available across all Claude plans and major cloud platforms, Sonnet achieves state-of-the-art performance on benchmarks like SWE-bench Verified and TAU-bench. Anthropic emphasizes its commitment to responsible AI development, releasing a comprehensive system card detailing its safety and reliability evaluations.

(www.anthropic.com)

AI Reasoning Model

Microsoft Sues Service for Generating Illicit Content with its AI Platform

2025-01-11

Microsoft Sues Service for Generating Illicit Content with its AI Platform

Microsoft is suing three individuals and seven customers for running a service that generated harmful and illicit content using Microsoft's AI platform. The defendants developed tools to bypass Microsoft's safety measures, using compromised legitimate user accounts to create a fee-based platform. Operating from July to September 2024, the service used undocumented APIs and stolen API keys to generate illegal content, including pornography and violent materials. Microsoft's lawsuit cites multiple legal violations and seeks an injunction and damages.

(arstechnica.com)

Tech

Adobe Raises Creative Cloud Prices, Adds Generative AI Features

2025-05-20

Adobe Raises Creative Cloud Prices, Adds Generative AI Features

Adobe is increasing prices for its Creative Cloud All Apps plan in North America, renaming it Creative Cloud Pro. The price hike comes with the addition of generative AI features, including unlimited credits for image generation and 4,000 monthly credits for premium video and audio AI tools. Individual annual subscriptions will rise from $59.99 to $69.99 per month, while monthly subscriptions jump from $89.99 to $104.99. A cheaper Creative Cloud Standard plan with limited AI capabilities is also being offered. The changes have sparked some user backlash, raising questions about Adobe's pricing strategy.

(www.theverge.com)

Development

Sanders: AI Productivity Gains Should Mean Shorter Workweeks

2025-06-26

Sanders: AI Productivity Gains Should Mean Shorter Workweeks

Senator Bernie Sanders argues that the productivity gains from AI should benefit workers, not just corporate executives. He suggests a reduced workweek, citing examples like a successful UK trial of a four-day workweek and Microsoft Japan's experiment with similar results. Sanders envisions using AI to give workers more time for family, friends, and personal pursuits, arguing this isn't a radical idea but a beneficial application of technology.

(techcrunch.com)

Tech workweek

Adult Language Learning: Listen First, Read Later?

2025-03-15

Adult Language Learning: Listen First, Read Later?

A new study reveals that adults learning a new language benefit more from initially focusing on the melody and rhythm of speech rather than written text. Czech adults listened to Māori, then were tested on distinguishing Māori from Malay. Those who simply listened performed better than those who also read subtitles; reading actually hindered their ability to discern the languages' rhythmic patterns. This suggests that adults should mimic infants, prioritizing the overall sound patterns of a language before tackling written forms, potentially unlocking the brain's inherent language acquisition mechanisms.

(theconversation.com)

Misc adult learning auditory learning

Apple AirPods to Get Real-Time Translation

2025-03-14

Apple AirPods to Get Real-Time Translation

Apple is planning to add real-time translation to its AirPods, Bloomberg News reported Thursday. The feature will arrive as part of a software update later this year, tied to the iOS 19 update. This will allow AirPods to translate conversations on the fly. Competitors like Google's Pixel Buds have offered this for years. Apple last year announced AirPods Pro 2 could become personalized hearing aids via software updates. Apple is also planning a major software overhaul later this year, changing the look of its operating systems across iPhone, iPad, and Mac.

(www.yahoo.com)

Tech Real-time Translation

Building a Compact C Standard Library with Newlib on Bare Metal RISC-V

2025-04-26

Building a Compact C Standard Library with Newlib on Bare Metal RISC-V

This article demonstrates building a compact C standard library using Newlib on a bare-metal RISC-V system. The author implements basic UART functions, passing them to Newlib to enable printf functionality. The process covers Newlib's concept, cross-compilation toolchain setup, UART driver, system calls, and linker script creation. The article concludes with running the application in QEMU and analyzing the debug log. This is a practical tutorial on embedded systems development, showing how to utilize the C standard library in resource-constrained environments.

(popovicu.com)

Development

A Comedy of Errors: My Amateur Search Library vs. Elasticsearch

2025-06-06

A Comedy of Errors: My Amateur Search Library vs. Elasticsearch

The author compares their Pandas-based full-text search library, SearchArray, against Elasticsearch using the BEIR benchmark. The results are humbling: SearchArray significantly underperforms Elasticsearch in all aspects. The article delves into the reasons, highlighting optimizations in production-ready search engines like Elasticsearch, such as the WAND algorithm and efficient inverted indices. SearchArray's lack of these optimizations leads to poor performance. The author concludes that SearchArray is suitable for prototyping on smaller datasets, but not for large-scale retrieval systems.

(softwaredoug.com)

Development

Skywork-OR1: Powerful Open-Source Reasoning Models Released

2025-04-13

Skywork-OR1: Powerful Open-Source Reasoning Models Released

SkyworkAI has released the Skywork-OR1 series of powerful open-source reasoning models, including Skywork-OR1-Math-7B, Skywork-OR1-32B-Preview, and Skywork-OR1-7B-Preview. These models, trained using large-scale rule-based reinforcement learning, excel at math and code reasoning. Skywork-OR1-Math-7B significantly outperforms similar-sized models on AIME24 and AIME25; Skywork-OR1-32B-Preview achieves Deepseek-R1 performance levels on math and coding tasks; and Skywork-OR1-7B-Preview surpasses all similarly sized models in both domains. The full models and training scripts will be open-sourced in the coming days.

(github.com)

AI

PlanetScale Exposes the Real Failure Rate of EBS: It's Not Binary, It's Constant Degradation

2025-03-18

PlanetScale Exposes the Real Failure Rate of EBS: It's Not Binary, It's Constant Degradation

Based on its massive use of Amazon EBS, PlanetScale reveals the true failure rate is far higher than AWS documentation suggests. The article highlights that EBS 'slowness' is far more common than outright failure, with frequent performance fluctuations even when meeting AWS's performance guarantees, causing application outages. This degradation isn't random; it's inherent to the system's complexity. PlanetScale mitigates issues through monitoring and automated EBS volume replacement, ultimately leading to PlanetScale Metal to avoid network storage performance issues.

(planetscale.com)

Tech EBS failure rate cloud storage performance database high availability

Hypersonic Interstellar Comet 3I/ATLAS: A Record-Breaking Visitor

2025-07-03

Hypersonic Interstellar Comet 3I/ATLAS: A Record-Breaking Visitor

Astronomers have discovered the third interstellar object, 3I/ATLAS, originating outside our solar system. This comet is remarkably fast, traveling at 60 kilometers per second towards the Sun, far exceeding previous interstellar visitors. Its orbit is largely unaffected by the Sun's gravity, giving scientists at least eight months of observation time. Unlike 'Oumuamua and 2I/Borisov, 3I/ATLAS's discovery, coupled with the capabilities of future telescopes like the Vera C. Rubin Observatory, suggests a significant increase in the detection rate of interstellar objects—potentially several per year.

(www.abc.net.au)

Tech interstellar object comet

AI Accelerates Material Synthesis: Berkeley Lab Uses AI Algorithm to Dramatically Increase Efficiency

2025-09-22

AI Accelerates Material Synthesis: Berkeley Lab Uses AI Algorithm to Dramatically Increase Efficiency

Researchers at Berkeley Lab used an AI algorithm, AutoBot, to significantly improve the efficiency of synthesizing high-quality films. AutoBot analyzes data from multiple characterization techniques to quickly learn the relationship between synthesis parameters and film quality. The research found that high-quality films can be synthesized at relative humidity levels between 5% and 25%, without requiring stringent environmental controls. This research lays important groundwork for commercial manufacturing and demonstrates the immense potential of AI in materials science.

(newscenter.lbl.gov)

Tech Film Synthesis

MCP Directory: An Open-Source Minecraft Server List

2025-05-17

MCP Directory: An Open-Source Minecraft Server List

ChatMCP has launched an open-source Minecraft server list website called MCP Directory. The project utilizes a Supabase database and provides a detailed installation guide, covering steps such as cloning the repository, installing dependencies, preparing the database, and setting environment variables. Users can preview the site at https://mcp.so. Community links are also provided for user interaction and support.

(github.com)

Game Server List

Gene Drives: Should We Eradicate Mosquitoes?

2025-06-08

Gene Drives: Should We Eradicate Mosquitoes?

Scientists have developed powerful gene drive technology with the potential to eradicate mosquitoes and other pests, preventing immense suffering from diseases like malaria. Target Malaria aims to use gene editing to render Anopheles gambiae mosquitoes infertile, controlling malaria transmission. However, this raises profound ethical questions: Do we have the right to intentionally drive a species to extinction? Experts warn that while mosquitoes are annoying, their role in ecosystems is unclear, and eradication could have unpredictable consequences. The article explores the potential and risks of gene drive technology, balancing human welfare with species conservation, particularly in malaria-ravaged Africa. Ultimately, it suggests prioritizing targeting the malaria parasite itself, rather than the mosquito, to minimize risks and achieve more effective results.

(www.yahoo.com)

Tech mosquito eradication

Four-Day Workweek Boosts Employee Well-being and Productivity

2025-07-23

Four-Day Workweek Boosts Employee Well-being and Productivity

A six-month trial involving thousands of employees across multiple countries showed that a four-day workweek, without a pay cut, significantly improved worker well-being and productivity. Researchers found reduced burnout, increased job satisfaction, and fewer sleep problems. While those reducing their hours by eight or more saw the greatest benefits, even a five-hour reduction yielded positive results. Although the study had limitations (volunteer participation, smaller companies, English-speaking countries), it suggests that income-preserving four-day workweeks are a promising organizational intervention, particularly in light of advancements in AI and automation.

(www.theregister.com)

Tech employee well-being

Moderna's mRNA Flu Vaccine Shows Significant Improvement in Efficacy

2025-07-05

Moderna's mRNA Flu Vaccine Shows Significant Improvement in Efficacy

Moderna announced that its mRNA flu vaccine, mRNA-1010, demonstrated 27% greater efficacy in preventing influenza infections than a standard flu shot in Phase 3 clinical trials. The trial involved nearly 41,000 participants aged 50 and older. mRNA-1010 showed an overall 26.6% higher efficacy than the standard vaccine, rising to 27.4% in participants aged 65 and older. This is particularly encouraging given the severity of the 2024-2025 flu season. Moderna's CEO stated that the mRNA flu vaccine has the potential to more precisely match circulating strains, enable rapid response to future pandemics, and pave the way for COVID-19 combination vaccines.

(arstechnica.com)

Tech mRNA vaccine

arXivLabs: Experimental Projects with Community Collaboration

2025-04-14

arXivLabs is a framework enabling 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 is committed to these values and only partners with those who share them. Got an idea for a valuable community project? Learn more about arXivLabs.

(arxiv.org)

Development

WorstFit: Exploiting Hidden Transformers in Windows ANSI

2025-01-09

WorstFit: Exploiting Hidden Transformers in Windows ANSI

Security researcher Orange Tsai unveils WorstFit, a novel attack surface in Windows. Exploiting the Best-Fit charset conversion feature, WorstFit leverages unexpected transformations during UTF-16 to ANSI conversion, leading to path traversal, argument injection, and even remote code execution (RCE). The unpredictable nature of Best-Fit mappings across different language configurations affects numerous well-known applications. The research highlights the challenges of patching this in the open-source ecosystem and proposes mitigations like using wide-character APIs.

(blog.orange.tw)

Tech Character Encoding

Wave3 Social: Building Genuine Connections

2025-05-30

Wave3 Social: Building Genuine Connections

Wave3 is a men's social club focused on fostering meaningful friendships. Membership starts by attending open mixers to meet current members. If vouched for by existing members, you receive an invitation to join, gaining access to exclusive events. Bringing friends is encouraged, and the club emphasizes an open and respectful atmosphere. While some events may have small fees, accessibility is prioritized.

(wave3.social)

Misc social club

Build a Rock-Solid SOC 2 Foundation: One-Stop Shop

2025-05-12

Build a Rock-Solid SOC 2 Foundation: One-Stop Shop

Tired of struggling with SOC 2 compliance? This tool provides clear, actionable SOC 2 checklists to understand requirements and easily track progress. Instantly generate foundational, SOC 2-compliant policies to kickstart your documentation. Centralize evidence uploads and link files directly to controls, simplifying audit preparation. Collaborate effectively with team task assignment, status tracking, and evidence request management—all within one platform. Future updates include automated evidence collection, continuous control monitoring, and vendor integrations.

(www.lumoar.com)

Development

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