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Make Ubuntu Packages 90% Faster: A Tale of Recompilation and Allocators

2025-03-19
Make Ubuntu Packages 90% Faster: A Tale of Recompilation and Allocators

This post details how recompiling the jq source package used by Ubuntu resulted in a staggering 90% performance improvement. The author benchmarked against a 500MB GeoJSON file. Simply rebuilding the package yielded a small but noticeable speedup. Further optimizations included using clang with better flags (-O3, -flto, -DNDEBUG), which provided a 20% boost. Switching to the TCMalloc allocator improved performance by another 40%. Finally, using mimalloc, either dynamically loaded or integrated during the rebuild, resulted in the remarkable 90% speed increase. The recompiled jq with mimalloc is nearly twice as fast as the default Ubuntu package in various tests.

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(gist.github.com)
Development compilation optimization memory allocation

Steffi Graf's Pickleball Pivot: From Tennis Legend to Competitive Newbie

2025-02-15
Steffi Graf's Pickleball Pivot: From Tennis Legend to Competitive Newbie

Twenty-five years after retiring from tennis, Steffi Graf finds herself competing in the fast-paced world of pickleball. While nerves were never an issue during her illustrious tennis career, the quick pace and unfamiliar dynamics of pickleball presented a new challenge. Graf, along with husband Andre Agassi, will be participating in the Pickleball Slam 3 in Las Vegas, vying for a $1 million prize purse. Graf highlights pickleball's accessibility and ease of learning, suggesting it complements rather than threatens tennis. Despite needing to adapt her style, Graf relishes the challenge and the chance to reignite her competitive spirit in this new arena.

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(www.cnn.com)
Game Steffi Graf Andre Agassi

Troubleshooting Amazon EKS Authentication Error: "You must be logged in to the server (Unauthorized)"

2025-02-18
Troubleshooting Amazon EKS Authentication Error:

Encountering the "You must be logged in to the server (Unauthorized)" error when connecting to the Amazon EKS API server? This usually happens because the IAM entity configured in kubectl isn't authenticated by Amazon EKS. This guide details solutions for two scenarios: you are the cluster creator or you are not. If you're the cluster creator, verify that the IAM entity configured for the AWS CLI matches the one used to create the cluster and update your kubeconfig file using `aws eks update-kubeconfig`. If not, map your IAM entity to the aws-auth ConfigMap using `eksctl create iamidentitymapping` or by manually editing the ConfigMap. Finally, don't forget to check CloudWatch logs for troubleshooting.

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(repost.aws)
Development

FCC Proposes US Cyber Trust Mark for Smart Devices

2025-01-11
FCC Proposes US Cyber Trust Mark for Smart Devices

The Federal Communications Commission (FCC) is seeking registration for its proposed "US Cyber Trust Mark" logo, part of a cybersecurity labeling program for smart devices. This program aims to help consumers identify smart devices meeting higher security standards. The FCC has released the logo design and is seeking public comment. Use of the logo requires explicit written consent from the FCC.

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(www.fcc.gov)
Tech Smart Devices

The Lawyer Who Unmasked the Ethanol Myth: A Story of Food, Farming, and Climate Change

2025-07-28
The Lawyer Who Unmasked the Ethanol Myth: A Story of Food, Farming, and Climate Change

In 2003, lawyer Tim Searchinger found flaws in a report claiming corn ethanol reduced greenhouse gas emissions. His deeper investigation revealed the report underestimated the climate costs of using grain for fuel, neglecting the land-use changes needed to replace lost food production. Although climate change wasn't a major issue then, Searchinger's skepticism led him to delve into the complex interplay of agriculture, land use, and climate change, ultimately exposing the significant environmental impact of biofuels and paving the way for solutions to global food and climate problems.

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(lithub.com)
Tech land use

NVIDIA's RTX 50 Series: A Disaster Fueled by Monopoly?

2025-07-05
NVIDIA's RTX 50 Series: A Disaster Fueled by Monopoly?

Since the disastrous launch of the RTX 50 series, NVIDIA has faced a barrage of criticism: scalpers control stock, prices far exceed MSRP, power connectors continue to melt, marketing is deceptive, GPUs arrive with missing components, drivers are unstable, and NVIDIA is accused of manipulating media narratives. This reflects a growing indifference to consumer needs, prioritizing data center GPU profits. The RTX 50 series not only perpetuates the 12VHPWR connector melting issues but introduces Multi-Frame Generation (MFG) in drivers, sacrificing image quality for higher frame rates, resulting in blurry visuals. Accusations of intimidating reviewers to influence reviews further damage their reputation. The RTX 50 series launch showcases the negative consequences of NVIDIA's monopoly, harming consumers.

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(blog.sebin-nyshkim.net)
Hardware

London Suburb Dweller's Megawatt-Hour Battery Dream

2025-09-15
London Suburb Dweller's Megawatt-Hour Battery Dream

A London suburban resident attempts to calculate the battery size needed for complete home energy self-sufficiency. Using data from their solar panels (generating 3800 kWh annually, matching their consumption), and years of data analysis, they find a massive 1068 kWh (nearly a megawatt-hour) battery is required to store summer's excess energy for winter use. While currently unrealistic due to technology and cost, they remain optimistic about future battery technology advancements and price drops, envisioning a future where every home has such a battery, achieving complete solar self-sufficiency.

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(shkspr.mobi)
Tech batteries energy self-sufficiency

Simplified Omarchy Installation on CachyOS

2025-09-15
Simplified Omarchy Installation on CachyOS

This project offers a script for installing DHH's Omarchy desktop configuration on CachyOS, a performance-optimized Arch Linux distribution. Omarchy, a Hyprland-based setup, prioritizes simplicity and productivity. The script streamlines the installation but requires familiarity with Arch Linux. It doesn't install CachyOS or handle partitioning, formatting, or encryption; users must do this beforehand. The script opts for Yay (AUR helper) and Fish (shell), retaining CachyOS's Tealdeer and Omarchy's Mise. Importantly, it doesn't install a display manager or autostart Hyprland unless already installed by CachyOS. No warranty is provided; use at your own risk.

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(github.com)
Development

libxml2 Maintainer Steps Down

2025-09-18
libxml2 Maintainer Steps Down

Nick Wellnhofer, the maintainer of libxml2, announced his resignation, leaving the project largely unmaintained. He will address regressions in the 2.15 release until the end of 2025. The news prompted widespread appreciation and concern from the community. Many developers expressed gratitude for the long-term maintenance of libxml2, and one offered to take over maintenance, albeit with some technical questions requiring clarification from the former maintainer.

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(discourse.gnome.org)
Development

Walter Isaacson: My So-Called Writing Life

2025-01-01
Walter Isaacson: My So-Called Writing Life

This excerpt from Walter Isaacson's memoir recounts his journey from journalist to bestselling biographer. He shares anecdotes from his time at Time magazine, insightful interviews with prominent figures, and reflections on writing, journalism, and technology. He emphasizes the power of biographical storytelling, the impact of technological advancements on information dissemination and writing styles, and expresses concerns about the future of writing and copyright.

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(lehnews.wordpress.com)
Misc biography journalism

The Evolution of PuTTY's Icons: From Hand-Drawn to SVG

2025-03-12

This article chronicles the evolution of PuTTY's icons from hand-drawn images in the 1990s to today's scalable SVG vectors. The author initially created 32x32 pixel icons using the MSVC icon editor, constrained by the 16-color palette and display technology of the time. Over time, to accommodate higher resolutions and the needs of various tools, the author refined the process, eventually developing a script that auto-generates icons in multiple sizes and formats. This culminated in SVG versions, achieving true scalability. The design philosophy remains simple and clear, reflecting PuTTY's 'reassuringly old-fashioned' style, and continues to be used to this day.

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(www.chiark.greenend.org.uk)
Development Icon Design

The Death of SSL Certificate Management (as We Know It)

2025-08-26

Managing SSL certificates is becoming a nightmare. What was once a quarterly task is now a weekly struggle, driven by increasingly stringent validation requirements and drastically shortened certificate lifespans—down to a mere 47 days by 2029! This escalating burden is pushing organizations towards platform-integrated certificate management or free alternatives like Let's Encrypt, potentially disrupting the traditional CA market. The author questions whether these changes genuinely enhance security or simply add unnecessary overhead for already strained IT teams.

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(www.chrislockard.net)
Development certificate management

How Top Programmers Use LLMs to Supercharge Productivity

2025-07-21

Veteran programmer antirez shares his 18-month experience using large language models like Gemini 2.5 PRO and Claude Opus for coding. He argues that current LLMs are best used as powerful assistants, not as standalone project completers. By clearly describing problems and iterating effectively, LLMs can help eliminate bugs, explore ideas faster, engage in pair-design, and even learn technologies outside one's expertise. However, antirez stresses the importance of providing ample context, choosing the right model, and maintaining control over the code, avoiding reliance on automated agents. Only then can code quality be assured and efficiency maximized.

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(antirez.com)
Development

Minimal PyTorch Probabilistic Diffusion Model: 2D Dataset Experiments

2025-06-15
Minimal PyTorch Probabilistic Diffusion Model: 2D Dataset Experiments

This post details a minimal PyTorch implementation of a probabilistic diffusion model for 2D datasets. The author explores hyperparameters like learning rate, model size, diffusion process length, and timestep encoding through various experiments. Results show that a suitable learning rate is crucial, longer diffusion processes generate more complete samples, and model capacity isn't the primary bottleneck. Using sinusoidal embeddings for input encoding aids in learning high-frequency functions in low-dimensional domains.

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(github.com)
Development Probabilistic Diffusion Model 2D Dataset

Senate Passes Sweeping Stablecoin Bill, Crypto Regulation Enters New Era

2025-06-18
Senate Passes Sweeping Stablecoin Bill, Crypto Regulation Enters New Era

The U.S. Senate overwhelmingly passed the Guiding and Establishing National Innovation for U.S. Stablecoins of 2025 (GENIUS) Act with a 68-30 vote, marking a significant milestone in U.S. crypto policy. The bill, which garnered substantial Democratic support, sets guardrails around stablecoin issuers like Circle, Ripple, and Tether, demanding stringent reserve requirements, transparency, anti-money laundering compliance, and new capital rules. While not satisfying all critics, supporters argue inaction is no longer an option given the growing prevalence of stablecoins. The bill's passage represents a step toward the U.S. becoming a global crypto leader, but its fate is intertwined with the House's Digital Asset Market Clarity Act; both bills' passage is crucial for shaping the future of U.S. crypto markets.

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(www.coindesk.com)
Tech crypto regulation US legislation

Playstacean: A Crab-Themed PSOne Mod Takes Meme to Reality

2025-03-29
Playstacean: A Crab-Themed PSOne Mod Takes Meme to Reality

YouTuber GingerOfOz brought the meme-ified 'Playstacean' to life, a crab-shaped PlayStation One mod based on concept art by Anh Dang. This isn't just a reskin; it features functional crab claw controllers and intricate internal modifications. The build involved 3D printing, controller port adjustments, and wiring challenges. While GingerOfOz isn't releasing the design files yet, this unique creation will be showcased at the Midwest Gaming Classic.

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(gizmodo.com)
Game console mod

No More New Computers: A Decade-Long Hardware Plan

2025-01-12

The author reflects on the breakneck pace of computer hardware upgrades in the 90s and 2000s, contrasting it with the current state. He argues that even high-end CPU performance gains are no longer necessary for average users. Using personal experience, the author demonstrates how a 2011 i5 system still meets his needs, and his 2019 Ryzen 5 3600 upgrade remains highly efficient. He concludes that barring unforeseen circumstances, he will no longer buy new computers, instead relying on used, slightly older components from the secondary market, achieving a decade-long hardware plan.

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(82mhz.net)
Hardware hardware upgrades computer performance cost-effectiveness

Google Photos API Change Breaks Auto-Sync for Digital Photo Frames

2025-03-07
Google Photos API Change Breaks Auto-Sync for Digital Photo Frames

Google's upcoming change to its Google Photos API will break the auto-sync features of digital photo frames from companies like Aura and Cozyla. While intended to improve user privacy, this change will prevent frames from automatically updating slideshows. Aura is proactively disabling its Google Photos auto-sync on March 17th, 2025, requiring users to manually add photos. Although Google claims to be developing new APIs for digital photo frames, this won't replace the removed auto-sync functionality, causing inconvenience to users.

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(www.theverge.com)
Tech Digital Photo Frames API Change

AI Art: A Dreamlike Silver-Haired Princess

2025-03-08
AI Art: A Dreamlike Silver-Haired Princess

This AI-generated artwork depicts a princess with flowing silver hair and violet eyes, elegantly seated in a magically glowing pond, adorned in a stunning white and purple gown with floral accents. Surrounded by butterflies and petals, the image is exquisitely detailed, dreamy, and evokes a fantastical atmosphere. The intricate shading and lighting showcase advanced AI art capabilities.

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(www.gentube.app)
Design dreamlike princess

American Wealth Doesn't Guarantee a Longer Life: Study Reveals Systemic Issues

2025-04-04
American Wealth Doesn't Guarantee a Longer Life: Study Reveals Systemic Issues

A study of over 73,000 adults in the US and Europe reveals a shocking disparity: the wealthiest Americans have lower life expectancies than their European counterparts. The survival rate gap between the richest and poorest in the US far exceeds that seen in European nations. Even the poorest Americans fare worse than the poorest in Europe. Beyond healthcare access and social safety nets, the researchers suggest systemic factors like diet, environment, behavior, and cultural differences contribute to this uniquely American phenomenon of shorter lifespans, even among the wealthy. This highlights the deep-seated systemic issues impacting health outcomes in the US.

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(arstechnica.com)
Misc health disparity life expectancy socioeconomic inequality

Rust Reflection: The Tug-of-War Between Safety and Access Rules

2025-01-03

Rust lacks reflection, a feature many developers desire. This article delves into the safety challenges of implementing reflection in Rust. Due to Rust's memory safety guarantees, a reflection API must adhere to strict access rules, preventing arbitrary access to private fields to avoid memory safety vulnerabilities. The author explores how these limitations impact reflection API design, such as handling reflection failures and expressing complex reflection bounds. The trade-offs between safe and unsafe reflection APIs are also discussed, along with balancing functionality and security. Ultimately, creating a safe reflection mechanism in Rust is a complex and challenging problem requiring careful consideration of various factors.

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(fractalfir.github.io)
Development Reflection

Website Chaos: A Parody Tool (Don't Enter Passwords!)

2025-08-29
Website Chaos: A Parody Tool (Don't Enter Passwords!)

This tool is purely for comedic effect; it temporarily adds visual chaos to websites. It does not store, collect, or transmit any personal data. **Never** use it to enter passwords, credit card information, or any sensitive data. The proxied sites are not secure. Using this tool signifies agreement to its entertainment-only purpose and the exclusion of sensitive information. Banking, financial, healthcare, and government sites are blocked for security reasons.

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(www.fuckupmysite.com)
Misc website parody entertainment tool security warning

Beyond Prompt Engineering: Context Engineering for Powerful AI Agents

2025-07-01
Beyond Prompt Engineering: Context Engineering for Powerful AI Agents

Context Engineering is emerging as the next frontier in AI, moving beyond simple prompt engineering. It focuses on providing LLMs with comprehensive contextual information for effective problem-solving. The article argues that the success of AI agents hinges on context quality, not just model capabilities. Context Engineering encompasses initial instructions, user prompts, short-term memory, long-term memory, external information retrieval, available tools, and structured output. A successful AI agent, like one scheduling meetings from emails, needs integrated calendar data, email history, and contact information to generate human-like responses instead of robotic ones. The article stresses that Context Engineering is a dynamic system, delivering the right information and tools at the right time, ensuring the LLM can complete its task—the key to building robust and reliable AI agents.

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(www.philschmid.de)
AI Context Engineering

Firefox Launches New Tools for Focus, Privacy, and Smoother Mobile Browsing

2025-09-02

Firefox has rolled out several new features enhancing user privacy, focus, and mobile browsing experience. Android users get auto-locking private tabs for enhanced security, expanded language translation to Japanese, Chinese, Korean and more, while iOS users benefit from smarter password suggestions, a cleaner UI with an upgraded dark mode for a more focused browsing experience.

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(www.mozilla.org)
Development Mobile Browsing

X (formerly Twitter) Silently Shadow Bans Turkish Opposition Figure

2025-09-02
X (formerly Twitter) Silently Shadow Bans Turkish Opposition Figure

Following the arrest of Istanbul Mayor Ekrem İmamoğlu on corruption charges, his X account was restricted in Turkey, sparking controversy. While a new account gained some traction, his posts rarely appear on users' timelines, suggesting X is secretly shadow banning him. A poll shows the vast majority of users don't see his tweets, highlighting X's influence in political censorship and the immense political power wielded by Elon Musk.

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(utkusen.substack.com)
Tech

A Thrilling Ride: Building a Self-Modifying C Program

2025-05-25

This article details the creation of a C program capable of modifying its own code at runtime. The author first explains how program code is stored in memory and how to use the `mprotect()` function to change the permissions of the code segment to writable. Then, by modifying the immediate value of an `addl` instruction, the author demonstrates altering the program's output. Finally, the author goes further, using `memcpy()` to copy shellcode into the program's code segment, successfully executing a shell command at runtime. The entire process is technically challenging, requiring a strong understanding of x86_64 assembly language.

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(ephemeral.cx)
Development Self-Modifying Program

OpenAI's New Image Generator Ushers in 'Vibe Marketing'

2025-03-27
OpenAI's New Image Generator Ushers in 'Vibe Marketing'

OpenAI has launched a powerful new image generation model boasting photorealism and improved world knowledge. However, its text-rendering capabilities are truly groundbreaking, producing crisp, readable text instead of blurry AI artifacts. This makes AI-generated images highly viable for marketing, leading to the emergence of "vibe marketing." The article provides ten examples of vibe marketing using AI-generated images, covering various applications like social media posts, comics, infographics, and product promotions. Prompts for each example are included. The author predicts vibe marketing will become the new standard for product development.

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(www.indiehackers.com)
Tech vibe marketing

How Modern CPUs Efficiently Predict Bytecode Interpreter Loops

2025-07-05

While investigating the performance of a new Python interpreter, the author discovered that modern CPUs can efficiently predict indirect jumps within bytecode interpreter loops. This is achieved through advanced branch predictors like TAGE and ITTAGE. These predictors map the program counter (PC) and its history to past execution behavior, using multiple tables with geometrically increasing history lengths to dynamically choose the best prediction. The author explores applying ITTAGE's principles to coverage-guided fuzzing and program state exploration, suggesting it could lead to better understanding and exploration of interpreters and similar programs.

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(blog.nelhage.com)
Development branch prediction bytecode interpreter

Cloudflare's AI Labyrinth: Outsmarting AI Data Scrapers

2025-03-22
Cloudflare's AI Labyrinth: Outsmarting AI Data Scrapers

Cloudflare, a web infrastructure provider, unveiled "AI Labyrinth," a new feature designed to combat unauthorized AI data scraping. Instead of blocking bots outright, this innovative system lures them down a rabbit hole of realistic yet irrelevant AI-generated content, wasting their computational resources. This approach cleverly sidesteps the limitations of simple blocking, which can inadvertently alert scrapers to their detection. The generated content, based on real scientific facts, avoids misinformation, and is kept invisible to human users. This represents a significant advancement in bot mitigation strategies, showcasing a smarter, next-generation honeypot approach.

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(arstechnica.com)
Tech data scraping
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