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Rescue Your Crashed Linux System: The Chroot Technique

2025-04-09
Rescue Your Crashed Linux System: The Chroot Technique

Is your Linux system refusing to boot? Don't panic! This post introduces the chroot technique, a true Swiss Army knife for Linux systems. By mounting the hard drive of your broken system into a working one (e.g., a live USB), you cleverly create a new root directory containing the broken system's files and essential system folders. After using the `chroot` command to switch to this new root, you can fix your broken system as if it were running normally, executing commands like `apt update` and `dpkg-reconfigure`. This technique once saved the author's Nanopore GridION device!

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(livesys.se)
Development system repair

India's EV Battery Gamble: Independence or Dependence?

2025-07-07
India's EV Battery Gamble: Independence or Dependence?

India is poised to mass-produce EV batteries within 18 months, but the industry's structure raises concerns. Leading battery makers Amara Raja and Exide hold significantly fewer patents than Chinese and South Korean giants, highlighting a long-standing reliance on foreign technology. Many Indian firms opt for collaborations, relying on foreign tech and supply chains instead of independent R&D. While some companies like Ola Electric and Godi India are attempting independent innovation, Log9 Materials' near-bankruptcy highlights the risks. India's success hinges not just on battery production, but on mastering the underlying technology. Without a shift away from imported ideas, its ambitions may simply replace old dependencies with new ones.

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(indiadispatch.com)
Tech economic independence

Why I Prefer reStructuredText to Markdown

2025-08-18
Why I Prefer reStructuredText to Markdown

This post details why the author prefers reStructuredText (rST) over Markdown for writing technical books. rST, being a mid-weight representation of an abstract documentation tree, offers superior extensibility and customization compared to Markdown's lightweight approach. The author illustrates this with examples of image creation and exercise handling, showing how rST's custom directives and document tree transformations enable complex document structures and functionalities difficult to achieve in Markdown. While acknowledging rST's potentially less intuitive syntax, the author champions its power for large-scale documentation, especially when custom extensions and transformations are needed, as demonstrated in his book, "Logic for Programmers."

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(buttondown.com)
Development Technical Writing

Reviving the UCSD p-System: A Cross-Platform Compilation Legend

2025-04-16
Reviving the UCSD p-System: A Cross-Platform Compilation Legend

The author revisits the UCSD p-System, a cross-platform operating system and compiler from the 1970s. It achieved portability across diverse machines (from PDP-11 to Apple II) through its p-machine virtual machine. The author shares personal experiences using Apple Pascal and UCSD Pascal in high school and plans to rebuild a p-machine emulator in Rust, continuing its legacy and addressing issues with missing documentation and outdated compiler dependencies in existing tools.

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(markbessey.blog)
Development

Shifting Self-Identity: From Nerd to Fitness Enthusiast

2025-09-12
Shifting Self-Identity: From Nerd to Fitness Enthusiast

This article recounts a personal journey of belief transformation, from youthful disdain for fitness to the eventual adoption of a consistent workout routine. The author argues that self-identity dictates everything, but it's not set in stone. Through persistent action, even small wins, self-perception can gradually change, ultimately leading to self-transformation. The piece cites quotes from Seth Godin and James Clear, emphasizing the importance of action: "People like us do things like this" and "Every action you take is a vote for the type of person you wish to become."

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(www.fredrivett.com)
Misc belief change

GNOME 48 Accessibility Improvements: AccessKit, Orca Shortcuts, and More

2025-05-14

GNOME 48 boasts significant accessibility advancements. GTK 4.18 integrates the AccessKit backend, enabling accessible GTK applications on Windows and macOS for the first time. Wayland support for Orca screen reader keyboard shortcuts is complete, closing a major accessibility gap. Furthermore, WebKitGTK accessibility has been improved, making GNOME Web a fully accessible, sandboxed browser. The new accessibility tool, Elevado, is also released, offering developers a new way to explore and inspect application accessibility features. Numerous smaller improvements enhance accessibility in GTK and related libraries, including enhancements to the file chooser, list boxes, button size detection, and text attribute reporting.

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(blog.gtk.org)
Development

Low-Cost Visual Microphone Uses Light to 'Hear'

2025-08-01
Low-Cost Visual Microphone Uses Light to 'Hear'

Researchers at Beijing Institute of Technology have developed a low-cost visual microphone that uses light instead of sound to capture audio. Employing single-pixel imaging, the system detects subtle vibrations on surfaces caused by sound waves, converting them into audible signals. Unlike traditional microphones, this approach requires only light transmission, making it cheaper and applicable in scenarios where traditional mics fail, such as conversations through glass. Successful tests included reconstructing spoken numbers and a segment of Beethoven's Für Elise, highlighting potential applications in environmental monitoring, security, and industrial diagnostics.

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(phys.org)
Tech visual microphone single-pixel imaging

CockroachDB 25.2: Row-Level Security for Enhanced Data Control

2025-07-10
CockroachDB 25.2: Row-Level Security for Enhanced Data Control

CockroachDB's 25.2 release introduces Row-Level Security (RLS), a powerful feature enabling fine-grained access control at the row level within the database. This addresses limitations of traditional table-level permissions, particularly crucial for multi-tenant and multi-region deployments. The article details RLS implementation through multi-tenancy and multi-region use cases, showcasing its benefits in data isolation, regulatory compliance, and simplified application logic. Combining RLS with CockroachDB's Regional By Row (RBR) functionality provides geographically based access control, ensuring compliance with data residency regulations.

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(www.cockroachlabs.com)
Development row-level security

DuckDB's Spatial Extension: Democratizing Geospatial Data

2025-05-03
DuckDB's Spatial Extension: Democratizing Geospatial Data

What happens when you embed geospatial capabilities in generalist data tools? More people using geo data! A recent Cloud-Native Geospatial conference highlighted the need to broaden geospatial adoption. DuckDB's spatial extension dramatically lowers the barrier to entry, requiring only two lines of code to install and load. This allows casual users to easily work with geospatial data, boosting the ecosystem significantly. The success of Overture Maps Foundation may well be tied to this ease of access.

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(www.dbreunig.com)
Development

Emulating FMAdd: A Deep Dive into 32-bit Floats

2025-01-02

This post delves into emulating the FMAdd (fused multiply-add) instruction on hardware lacking native support, specifically focusing on a 32-bit float SIMD implementation. It explains FMAdd's operation and how to avoid double rounding errors inherent in intermediate floating-point calculations. The author details a clever technique using 'rounding to odd' and the extra precision of double-precision floats to eliminate rounding errors, achieving accurate FMAdd results. The post also briefly covers calculating precise addition results and error terms, promising a follow-up on handling 64-bit floats.

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(drilian.com)
Development floating-point arithmetic FMAdd instruction

Google Moves All Android Development In-House

2025-03-26
Google Moves All Android Development In-House

Google has confirmed it's moving all Android development to its internal branches, meaning the Android Open Source Project (AOSP) will no longer reflect Google's complete work. This aims to streamline development and prevent merge conflicts, but doesn't change Android's open-source nature. New versions and maintenance releases will be pushed to AOSP. End users and app developers will likely see little impact; the main change is less premature exposure of unconfirmed internal information via AOSP leaks.

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(9to5google.com)
Development

Floating-Point Comparisons: Pitfalls and Practical Solutions

2025-05-15
Floating-Point Comparisons: Pitfalls and Practical Solutions

This article delves into the complexities of comparing floating-point numbers. The author highlights the unreliability of simple equality checks due to inherent precision limitations and accumulated rounding errors. Two comparison methods are detailed: relative error (epsilon) and ULP (Units in the Last Place), along with their strengths and weaknesses. The article emphasizes the failure of relative error comparisons near zero, proposing a solution combining absolute error. A compelling example using `sin(π)` demonstrates catastrophic cancellation and how floating-point representation errors can improve π's accuracy.

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(randomascii.wordpress.com)
Development precision

Sneaky Google Ads Inject Fake Phone Numbers onto Legitimate Websites

2025-06-19
Sneaky Google Ads Inject Fake Phone Numbers onto Legitimate Websites

Malwarebytes uncovered a sophisticated phishing campaign. Attackers buy Google Ads appearing at the top of search results for major companies like Apple and Microsoft. These ads contain cleverly hidden parameters that inject fake phone numbers onto the legitimate website after a user clicks. These parameters are invisible in the ad itself, making detection difficult. The scam exploits the inability of some websites to identify malicious queries, displaying fake support numbers that trick users into revealing personal or financial information. Malwarebytes' browser security now flags these scams; users are advised to avoid clicking Google Ads and instead opt for organic search results.

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(arstechnica.com)
Tech google ads

Counting Yurts in Mongolia: A Machine Learning Adventure

2025-06-18

This article details the author's journey in counting the number of yurts (gers) in Mongolia using machine learning. The author meticulously documents the process, from data acquisition using Google Maps satellite imagery and model training with YOLO, to deployment on a Docker Swarm cluster leveraging multiple GPUs. The project highlights the challenges of processing vast geographical datasets and the innovative solutions employed. The final count reveals a surprising number of yurts, offering insights into Mongolia's unique blend of traditional nomadic culture and modern urbanization.

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(monroeclinton.com)
Tech Mongolia

Vacheron Constantin's Solaria: An Eight-Year Masterpiece of Horology

2025-04-12
Vacheron Constantin's Solaria: An Eight-Year Masterpiece of Horology

Unlike the commissioned Berkley Grand Complication, the Solaria is a fully Vacheron-driven project. A single watchmaker was given complete creative freedom and spent eight years crafting this incredible feat of horology. There was no budget, and no price tag is publicly listed, yet the watch is for sale. Officially named “the Premiere”, the program accepts orders, with future examples modified to ensure uniqueness, each boasting a full suite of complications. A complete list of complications will follow, but here are some highlights.

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(www.hodinkee.com)
Misc Watchmaking Vacheron Constantin Solaria

Figma's Multiplayer Editing: A Simplified CRDT Approach

2025-08-19
Figma's Multiplayer Editing: A Simplified CRDT Approach

Four years ago, Figma embarked on building multiplayer functionality, opting for a custom-built system instead of the popular Operational Transform (OT) algorithm. Driven by a need for rapid iteration and concerns about OT's complexity, they created a simpler solution. This post details Figma's multiplayer system architecture, including its client/server architecture, WebSocket communication, offline editing capabilities, and data synchronization. While inspired by CRDTs (Conflict-free Replicated Data Types), Figma's implementation deviates from strict CRDT adherence, leveraging its principles while benefiting from a centralized server for efficiency and simplicity. The article contrasts OTs and CRDTs, delving into Figma's data structure design and how it handles edge cases.

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(www.figma.com)
Development Multiplayer Collaboration

Rye Language: A Higher-Level Programming Language Based on Spreadsheets

2024-12-24

Rye is a novel programming language that treats spreadsheets as first-class citizens, aligning more closely with human thinking. This article demonstrates how Rye creates, loads, and manipulates spreadsheets, supporting data import from CSV, SQL, and Excel files. It provides a rich set of functions for data manipulation, including filtering, sorting, and selection. By using spreadsheets as a fundamental data structure, Rye simplifies data operations and provides a more intuitive programming experience, especially when dealing with tabular data, resulting in concise and efficient code that outperforms other languages.

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(ryelang.org)
Development spreadsheet

Simulating and Visualizing the Central Limit Theorem: A Practical Exploration

2025-08-15

This post explores the Central Limit Theorem (CLT) through simulation and visualization. The author, having previously avoided statistics, uses R to generate samples from various distributions (uniform, normal, binomial, beta, exponential, chi-squared) and calculates sample means. The results visually demonstrate how the distribution of sample means approaches a normal distribution as sample size increases, confirming the CLT. The post further investigates the practical implications of using the t-distribution instead of the normal distribution for confidence interval calculations when dealing with limited sample sizes and unknown population variance. Simulations highlight the difference in confidence interval coverage across various sample sizes. Finally, an animation showcases how the distribution of sample means converges to a normal distribution as the sample size grows, offering a compelling visual understanding of this fundamental statistical concept.

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(blog.foletta.net)
Development Central Limit Theorem Statistical Simulation

Hirundo's Bias Unlearning Tech Reduces DeepSeek-R1 Model Bias by up to 76%

2025-01-29
Hirundo's Bias Unlearning Tech Reduces DeepSeek-R1 Model Bias by up to 76%

Hirundo successfully reduced bias in the DeepSeek-R1-Distill-Llama-8B large language model using its novel bias unlearning technology. While DeepSeek-R1 excels at reasoning tasks, it exhibited significant bias related to race, nationality, and gender. Hirundo's method achieved up to a 76% bias reduction across categories without impacting model performance, demonstrating a robust proof of concept for safer AI deployment. This technology will soon be available on Hirundo's platform, and the bias-unlearned model has been released on Hugging Face.

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(www.hirundo.io)
AI Bias Mitigation

Mastering TestFlight: A Guide to Beta App Installation and Testing

2025-05-09
Mastering TestFlight: A Guide to Beta App Installation and Testing

This comprehensive guide details how to install and test beta apps using TestFlight. It covers everything from accepting email or public link invitations to install the app, to managing automatic updates, testing previous builds and build groups, and handling iMessage app and App Clip testing across iOS, iPadOS, macOS, tvOS, and visionOS. Key considerations include in-app purchases not carrying over to the App Store version and accelerated subscription renewal rates during beta testing.

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(testflight.apple.com)
Development Beta Testing App Installation

NotebookLM Now Offers Multilingual Audio Summaries

2025-04-30
NotebookLM Now Offers Multilingual Audio Summaries

NotebookLM has updated its audio summarization feature, allowing users to select their preferred output language. Whether you upload a Portuguese documentary, a Spanish research paper, or an English study report, the system can generate an audio summary in your chosen language, facilitating the creation of multilingual content or learning materials. For instance, a teacher can share resources about the Amazon rainforest in various languages, and students can upload these and generate audio summaries in their native language, breaking down language barriers and making information more accessible.

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(blog.google)
Development audio summarization

YC-Backed Real Estate Startup Hiring TypeScript Engineer

2025-03-23
YC-Backed Real Estate Startup Hiring TypeScript Engineer

A YC-backed (S24) startup is seeking a TypeScript engineer to join their team disrupting the real estate industry. They're building a cutting-edge AI platform automating real estate agent workflows, including messaging, deal management, and customer interaction. The role offers a $100k-$150k salary and 0.5%-2.5% equity. Candidates should have experience using AI to ship code quickly, delivering consumer-facing features, and a solid understanding of existing AI models.

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(www.workatastartup.com)
Development Real Estate Tech

Michigan Considers Sweeping Ban on VPNs and Adult Content

2025-09-18
Michigan Considers Sweeping Ban on VPNs and Adult Content

Michigan Republican representatives have proposed the "Anticorruption of Public Morals Act," aiming to ban a wide range of adult content online, including ASMR, adult manga, AI-generated content, and depictions of transgender individuals. Uniquely, the bill also seeks to prohibit the use of VPNs within the state, charging ISPs with blocking VPN access and imposing hefty fines. This comprehensive legislation threatens the online privacy and security of Michigan residents and could set a precedent for similar laws in other states. The bill's future remains uncertain, but its implications are significant.

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(www.cnet.com)
Tech VPN ban

Beyond RAG: A Knowledge Management System That Enhances, Not Replaces, Thought

2025-01-02
Beyond RAG: A Knowledge Management System That Enhances, Not Replaces, Thought

This article explores the design philosophy behind Zettelgarden, a knowledge management system aiming to enhance, not replace, human thought. The author recounts the evolution from paper cards to digital notes, highlighting how digital systems, while offering convenient search and linking, lose the serendipitous connections fostered by physical proximity. The author critiques the current over-reliance on automation and RAG (Retrieval Augmented Generation) models in AI-assisted knowledge management, arguing their limitations in handling massive datasets and their neglect of personal understanding and knowledge processing. Zettelgarden emphasizes the importance of personal notes, encouraging users to add commentary and insights, facilitating connections between ideas through a unique card structure. The author believes the future of knowledge management lies in human-computer collaboration, with computers handling organization and humans focusing on thinking and understanding.

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(nsavage.substack.com)
Development

WebR: Run R in Your Browser

2025-08-23

WebR compiles the statistical language R to WebAssembly, enabling it to run directly in browsers and Node.js without needing an R server. This allows users to execute R code locally, with support for several ported R packages. While the API is under active development and mobile browsers may impose memory limitations, WebR offers a convenient way to perform data analysis directly within the browser.

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(docs.r-wasm.org)
Development

Overloading Lambda Abstraction in Haskell: An Elegant Approach to EDSL Design

2024-12-30
Overloading Lambda Abstraction in Haskell: An Elegant Approach to EDSL Design

This article presents a novel method for overloading lambda abstraction in Haskell to build embedded domain-specific languages (EDSLs). By cleverly using a `Port` type and `encode`/`decode` functions, the author elegantly translates Haskell functions into morphisms within a custom category. This results in a concise and intuitive syntax, avoiding the complexities of Arrow abstractions and the proc notation. The approach requires minimal Haskell code and no metaprogramming or compiler plugins. A flow diagram DSL example demonstrates the method's application, along with discussions on preventing duplication and handling side effects.

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(acatalepsie.fr)
Development Lambda Abstraction

Fakespot: Your Secret Weapon Against Fake Amazon Reviews

2025-06-04
Fakespot: Your Secret Weapon Against Fake Amazon Reviews

Fakespot is a browser extension that helps users identify fake reviews on Amazon and other e-commerce sites. User reviews rave about its effectiveness in saving time and money by avoiding purchases of low-quality products. Fakespot analyzes reviews, flags suspicious fake ones, and rates products and sellers, helping users make more informed buying decisions. Many users report never buying a fake product since using Fakespot, praising its effectiveness.

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(www.fakespot.com)
Misc

LLM Agents: The New DX Standard for API Development

2025-05-20
LLM Agents: The New DX Standard for API Development

LLM-powered agents are becoming tireless junior developers. They read API docs, issue requests, parse errors, and retry until success. However, API developer experience (DX) is crucial. If an agent stalls due to poor documentation or unclear error messages, human developers will likely hit the same roadblocks. Improving API documentation, providing clear and detailed error messages, and ensuring consistency significantly enhances DX and makes agents more efficient. This benefits human developers and allows agents to act as automated testers, catching issues early.

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(stytch.com)
Development API Development
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