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The Hidden Costs of Long-Term Software Maintenance

2025-02-19
The Hidden Costs of Long-Term Software Maintenance

This article delves into the often-overlooked challenges of maintaining large software projects over the long term. Using the author's browser-based game engine, Construct, as a case study (750,000 lines of code and a decade in development), the article highlights that initial code writing constitutes only a small fraction of the total effort. The vast majority of work involves ongoing maintenance: testing, debugging, optimization, upgrading, refactoring, customer support, and documentation. The author uses an apt analogy of building a house extension to illustrate the hidden costs and potential pitfalls of accepting external contributions. The article concludes by emphasizing the need for a more realistic approach to software development, acknowledging the significant commitment required for long-term maintenance and the potential for communication challenges.

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(www.construct.net)
Development software maintenance

Microsoft's Breakthrough: The World's First Topological Qubit

2025-02-19
Microsoft's Breakthrough: The World's First Topological Qubit

Microsoft announced a major breakthrough in quantum computing, unveiling Majorana 1, the world's first Quantum Processing Unit (QPU) powered by a topological core. Built using a novel topoconductor material, it's designed to scale to a million qubits on a single chip. This breakthrough leverages Majorana Zero Modes (MZMs) as qubit building blocks, employing measurement-based computation instead of traditional rotation, significantly simplifying quantum error correction. Partnering with DARPA, Microsoft aims to build a fault-tolerant prototype based on topological qubits within years, not decades, paving the way for a practical quantum computer capable of tackling real-world problems.

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(azure.microsoft.com)
Tech topological qubit Majorana zero modes

Linux Network Programming Guide: A Deep Dive into Socket Programming

2025-01-19
Linux Network Programming Guide: A Deep Dive into Socket Programming

This guide provides a comprehensive explanation of Linux network programming, focusing on socket programming. The author notes that many online resources lack clarity and sample codes often only cover the basics, hence the creation of this tutorial, offering clear guidelines and numerous examples. Topics covered include socket types, addressing, APIs (getprotobyname(), getservbyname(), getaddrinfo(), htonl(), htons(), ntohl(), ntohs(), socket(), setsockopt(), bind(), listen(), accept(), connect(), recv(), send(), close()), client-server models (simple HTTP client, TCP-based client-server, multithreaded TCP client-server, UDP-based client-server), advanced techniques (non-blocking sockets, synchronous I/O multiplexing with select() and poll(), broadcasting messages), and secure networking with libcurl and OpenSSL.

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(github.com)
Development Network Programming Sockets

Building a Link Blog: Inspired by Simon Willison

2025-02-04

Inspired by blogger Simon Willison, I've started a link blog to share interesting web links along with my personal comments and thoughts. Simon's blog is known for its AI content and high-quality links, where he adds personal insights and even code snippets, inspiring my approach to personal knowledge management and sharing. I used to struggle with the uniqueness and value of my posts, but Simon emphasizes the importance of consistent writing and accumulating work over time. My link blog will be a combination of public bookmarks and my commentary, aiming to enhance the reader's experience by adding context, connecting to related topics, and supplementing with background information or other sources.

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(xuanwo.io)
Development link blog

RK3588 SBC QEMU Hypervisor with ZFS on Debian: A Deep Dive

2025-01-16

This article details setting up a QEMU hypervisor on a BananaPi M71 2 (RK3588) single-board computer using Armbian and ZFS for storage. The author walks through building a custom Armbian image, flashing it, preparing NVMe SSD storage with a ZFS zpool, installing libvirtd, and finally running virtual machines. Challenges with NVMe drive compatibility on the RK3588 are addressed, along with solutions. The end result is a functional, small-scale private cloud capable of running various VMs (web servers, databases, etc.) offering workload isolation and resource management.

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(blog.kumio.org)
Development

The Gordian Knot of Online Schema Changes and Foreign Keys in MySQL

2025-02-12
The Gordian Knot of Online Schema Changes and Foreign Keys in MySQL

This post dissects the inherent challenges of performing online schema changes in MySQL, particularly when dealing with tables linked by foreign key relationships. The author analyzes the limitations of existing tools like pt-online-schema-change and gh-ost, highlighting the complexities and risks involved in altering parent tables. Altering a parent table necessitates concurrent alterations of all child tables, creating a fragile process with minimal tolerance for errors. A single failure can lead to data inconsistencies or outages. The author concludes that online schema changes involving foreign key constraints on large tables are practically infeasible.

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(code.openark.org)
Development Online Schema Change

Trump Threatens 20-Year Jail Sentences for Tesla Vandals

2025-03-30
Trump Threatens 20-Year Jail Sentences for Tesla Vandals

Amidst a surge of vandalism targeting Tesla vehicles, dealerships, and charging stations across the US, President Trump issued a stern warning: perpetrators face up to 20 years in prison, including those who funded the attacks. The FBI is investigating incidents in at least nine states, involving arson, gunfire, and graffiti. Three individuals have already been charged with crimes related to these attacks. This comes as Tesla's stock has plummeted nearly 48% this year, and top executives have offloaded $100 million in stock.

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(abc7.com)
Tech Vandalism

The Dark Side of the Sharing Economy: A Turo Nightmare

2025-02-16
The Dark Side of the Sharing Economy: A Turo Nightmare

Due to a past record, the author experienced a series of issues with the car-sharing platform Turo: the reserved car suffered a flat tire, the replacement arrived late; cancellation failed; the new car was dirty, and registration issues led to a police stop; additional charges were levied upon return. This article highlights the potential risks of the sharing economy: lack of platform oversight, irresponsible individual operators, and difficulty protecting consumer rights. Although the author eventually received a refund, the entire process was time-consuming and laborious, highlighting the shortcomings of the sharing economy's lack of effective regulation and consumer protection mechanisms.

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(basedfob.substack.com)
Misc sharing economy

Trump Admin Dismantles Cybersecurity Board Investigating Major Chinese Hack

2025-01-23
Trump Admin Dismantles Cybersecurity Board Investigating Major Chinese Hack

The Trump administration dissolved the Department of Homeland Security's Cybersecurity Safety Review Board (CSRB), which was investigating a significant cyberattack by the Chinese hacking group Salt Typhoon on major US telecom firms. This move has sparked controversy, with Democrats accusing the administration of stacking the board with loyalists to hinder the investigation into Salt Typhoon. DHS countered that the board was pursuing agendas detrimental to national security. The hack reportedly compromised communications data of Trump, the Vice President, and other government officials.

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(arstechnica.com)
Tech Chinese hacking

Hertz Desperate to Offload Tesla Inventory, Offers Deep Discounts

2024-12-25
Hertz Desperate to Offload Tesla Inventory, Offers Deep Discounts

Rental car giant Hertz is aggressively selling off its Tesla Model 3 inventory at drastically reduced prices. A Hertz customer posted on Reddit a screenshot showing a 2023 Model 3 with 30,000 miles for just $17,913 – significantly below market value. While buying used rental cars carries risks, the low price and remaining battery warranty are tempting many. Hertz's move is likely a response to high depreciation on its large Tesla fleet and a push to clear inventory before year-end.

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(jalopnik.com)
Tech Tesla Hertz Used Cars

The Mind-Blowing Secrets of the Number Line

2025-02-19
The Mind-Blowing Secrets of the Number Line

This article delves into the surprising complexities hidden within the seemingly simple number line. The author argues that even integers warrant deeper consideration regarding their existence and distinctness. Even more shockingly, the vast majority of numbers on the number line are non-computable, meaning they cannot be precisely expressed or calculated, exceeding the limits of human comprehension. This challenges our understanding of numbers and reveals the endless mysteries of the mathematical world.

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(mathwithbaddrawings.com)
Misc Number Theory Non-computable Numbers

Scaling Up: The Two-Zeroes Challenge

2025-03-01
Scaling Up: The Two-Zeroes Challenge

This article explores the impact of scale on system design. Using bridges as an example, it illustrates the dramatic changes in materials, technology, and engineering management needed to build bridges from 1 meter to 10,000 meters. Each increase of two orders of magnitude (e.g., from 10 to 1,000) necessitates a complete rethinking of the process, requiring the abandonment of prior experience to meet new challenges. This highlights the principle of quantitative change leading to qualitative change, applicable to any field.

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(taylor.town)
Tech scale effect engineering challenges

From 15 Years of Celibacy to Dating Success: A Practical Guide

2025-03-20
From 15 Years of Celibacy to Dating Success: A Practical Guide

A 34-year-old author, after 15 years of celibacy, shares his journey to dating success by treating it as a special interest. He details practical advice, emphasizing self-improvement, confidence, honesty, and vulnerability. The guide covers optimizing dating app profiles, effective communication, and navigating casual vs. serious relationships. It stresses dating as a team sport, not a battle, highlighting the power of authenticity in attracting compatible partners and ultimately finding lasting love.

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(fantasticanachronism.com)
Misc dating tips

Nintendo's Anti-Palworld Patent War Goes Global: US Patent Granted

2025-02-15
Nintendo's Anti-Palworld Patent War Goes Global: US Patent Granted

Nintendo secured a US patent in February 2025 for a creature-capture system, seemingly targeting Palworld. This follows a lawsuit filed in Japan against Pocketpair, the Palworld developer, for intellectual property infringement. The new patent, similar to one granted late 2024, uses subtly different wording to broaden its scope, suggesting Nintendo might expand the legal battle globally. The outcome depends on pending US patent applications, with one previously rejected but appealed by Nintendo.

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(gamerant.com)
Game Patent

Tabby: Your Self-Hosted AI Coding Assistant

2025-01-12
Tabby: Your Self-Hosted AI Coding Assistant

Tabby is an open-source, self-hosted AI coding assistant offering a local alternative to GitHub Copilot. It's self-contained, requiring no DBMS or cloud service, features an OpenAPI interface for easy integration, and supports consumer-grade GPUs. Recent updates include Llamafile deployment integration, an enhanced Answer Engine user experience, the ability to switch between different backend chat models in the Answer Engine, and displaying recently shared threads on the main page. It also boasts IDE plugins and enterprise features like team management and secured access.

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(github.com)
Development AI coding assistant

Mozilla's Privacy Policy Update: A Trust Crisis and Waterfox's Response

2025-02-28
Mozilla's Privacy Policy Update: A Trust Crisis and Waterfox's Response

Mozilla's recent privacy policy updates sparked controversy, with poor communication fueling user privacy concerns. Waterfox, a Firefox fork, maintains a transparent and stable privacy policy, emphasizing its formal governance structure and accountability mechanisms, differentiating itself from other open-source browser projects lacking accountability. The author argues that clear governance and transparent policies are crucial for building user trust in security-critical software like browsers, giving Waterfox a unique position in the market.

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(www.waterfox.net)
Development browser privacy user trust

AI Agents: Hype vs. Reality in 2025

2025-07-20
AI Agents: Hype vs. Reality in 2025

While 2025 is touted as the year of AI agents, a seasoned builder of production AI systems argues otherwise. Based on a year of building over a dozen production agent systems, he highlights three key realities often overlooked: exponentially compounding error rates in multi-step workflows; quadratic cost scaling from context windows; and the crucial challenge of designing effective tools and feedback systems for agents. He contends that successful AI agent systems aren't fully autonomous but rather integrate AI with human oversight and traditional software engineering, operating within defined boundaries with verifiable operations and rollback mechanisms. The future, he predicts, favors teams building constrained, domain-specific tools leveraging AI for complex tasks while maintaining human control. The focus should shift from 'autonomous everything' to 'extremely capable assistants with clear boundaries'.

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(utkarshkanwat.com)
AI AI engineering production systems

The Myth of High IQ: Just How Smart Was Einstein?

2025-02-23
The Myth of High IQ: Just How Smart Was Einstein?

This article challenges the common fantasy of assigning high IQ scores to historical figures, particularly Einstein's supposed IQ of 160. By analyzing Einstein's academic record and the limitations of modern IQ tests, the author argues that extremely high IQ scores (e.g., above 160) are unreliable. High-range IQ tests suffer from significant measurement error, and the correlation between such scores and real-world achievements is weak. The author critiques flawed studies, such as Anne Roe's estimations of Nobel laureates' IQs. The conclusion is that the obsession with stratospheric IQ scores is unfounded; true genius lies in creativity, deep thinking, and drive, not a single number.

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(www.theseedsofscience.pub)
AI Einstein Scientific Research

I Want My AI to Get Mad: On the Need for Agentic AI

2025-01-29

The author envisions a future where AI agents are not mere docile tools but assertive representatives capable of pursuing his interests, even expressing 'anger.' Drawing parallels to powerful historical leaders, the author argues that anger can be a powerful tool for achieving goals. However, he also warns of the social risks of deploying such 'angry AI' on a massive scale, as anger can be misused. The article concludes with a thoughtful reflection on the future of AI and a plug for the author's startup, Subble.

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(jesseduffield.com)
AI AI Ethics Future Tech

Python Launcher Gains Virtual Environment Support

2025-02-22
Python Launcher Gains Virtual Environment Support

The Windows installer for Python includes a launcher to locate the correct Python interpreter. However, it previously lacked virtual environment support. PEP 486 proposes making the launcher 'virtualenv aware'. This means that when no specific interpreter is given, the launcher will prioritize the currently active virtualenv, falling back to the default Python if none is active. This simplifies running Python commands within virtual environments, avoiding the need for different commands in different contexts.

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(peps.python.org)
Development

Alibaba Unveils its First Server-Grade CPU, Boosting China's Chip Self-Sufficiency

2025-03-03
Alibaba Unveils its First Server-Grade CPU, Boosting China's Chip Self-Sufficiency

Alibaba's Damo Academy launched its first server-grade CPU, the C930, part of its XuanTie RISC-V processor series. Shipping to clients in March, the chip is a key step in China's efforts to enhance its semiconductor independence amidst US export controls. Targeting high-performance computing, Alibaba also plans further XuanTie chips for AI acceleration, automotive applications, and high-speed interconnection. This move aligns with China's increased investment in RISC-V, reducing reliance on foreign technology, and fostering military-civilian tech integration. It also complements Alibaba's planned 380 billion yuan investment in AI and cloud infrastructure over the next three years, supporting the burgeoning demand for AI applications in China.

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(www.hpcwire.com)
Tech Chip Self-Sufficiency

Polars vs Pandas: A Head-to-Head Comparison

2025-01-23
Polars vs Pandas: A Head-to-Head Comparison

This book provides a detailed comparison of the Polars and Pandas data manipulation libraries, arguing that Polars offers a more intuitive and efficient approach. Through numerous examples, it showcases Polars' advantages across indexing, method chaining, performance, data reshaping, time series, and scalability. Polars consistently outperforms Pandas in speed and readability. The book is aimed at readers with some experience in data manipulation, particularly those familiar with Pandas.

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(kevinheavey.github.io)
Development data manipulation

Code in MS Paint? MS Paint IDE Makes it Possible!

2025-03-05
Code in MS Paint? MS Paint IDE Makes it Possible!

MS Paint IDE is a program that reads standard MS Paint image files and translates the text within into executable code. Write, compile, and run programs using the familiar MS Paint interface, with support for external libraries and multiple classes. It's like science fiction, but it's real!

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(ms-paint-i.de)
Development

The Ultimate AI Learning Resource: From Beginner to Expert

2025-08-11

Aman Chadha has curated a comprehensive list of AI learning resources covering the entire process of building, training, and evaluating neural networks. From linear regression to large language models, and from data preprocessing to model evaluation, this resource has it all. Whether you're focusing on algorithms, training techniques, or model deployment and evaluation, this guide provides comprehensive support for AI learners of all levels, from beginners to seasoned researchers.

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(aman.ai)
AI

Sparks: A Typeface for Creating Sparklines in Text

2025-04-05
Sparks: A Typeface for Creating Sparklines in Text

After the Flood, a design consultancy, has released Sparks, a new typeface that leverages OpenType's contextual alternates feature to generate sparklines directly within text. By inserting data points in a specific format between numbers (e.g., `123{30,60,90}456`), users can create sparklines. Sparks is compatible with various browsers and software, offering bar, dot, and dot-line styles with five weight variations. While the underlying mechanism is complex, it offers a novel and convenient method for data visualization.

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(github.com)
Design

Soviet Hero: A Daring Rescue from the Depths of Lake Yerevan

2025-01-14

In 1976, Shavarsh Karapetyan, a Soviet swimming champion, witnessed a trolleybus plunge into Lake Yerevan. Ignoring the perilous icy water and pollution, he launched a daring rescue, repeatedly diving into the submerged vehicle to save dozens of passengers. This heroic act, suppressed by Soviet authorities, remained largely unknown until years later. Karapetyan's story is a testament to extraordinary courage and the power of human compassion.

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(grantland.com)
Misc Heroism Rescue

mutool: A Swiss Army Knife for PDF Manipulation

2025-02-02

mutool, built on the MuPDF library, is a powerful command-line tool offering a wide array of subcommands for manipulating PDF files. From converting pages to PNGs and extracting text to merging multiple PDFs and extracting embedded images and fonts, mutool handles a diverse range of tasks. It's a versatile tool for both simple conversions and complex PDF operations.

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(www.mankier.com)
Development PDF manipulation

OpenZFS 2.3.0 Released: RAIDZ Expansion, Blazing Fast Deduplication, and More

2025-01-14
OpenZFS 2.3.0 Released: RAIDZ Expansion, Blazing Fast Deduplication, and More

OpenZFS 2.3.0 is here! This release boasts exciting new features including RAIDZ expansion for adding devices to existing RAIDZ pools without downtime, blazing fast deduplication for significantly improved performance, direct I/O for bypassing ARC caching to boost efficiency on devices like NVMe, optional JSON output for most commands, and support for file/directory names up to 1023 characters. Numerous critical bug fixes and performance improvements round out this release. Supported platforms include Linux kernels 4.18-6.12 and FreeBSD releases 13.3, 14.0-14.2.

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(github.com)
Development storage

GPUs Are So Fast, Why Do We Still Need CPUs?

2025-01-08
GPUs Are So Fast, Why Do We Still Need CPUs?

A viral video uses a painting duel to illustrate the performance difference between CPUs and GPUs: a CPU painstakingly draws a smiley face, while a GPU instantly renders the Mona Lisa. But this overlooks a crucial point: program types. CPUs excel at sequential instructions, while GPUs thrive on parallel processing. Most applications blend sequential and parallel code; for example, a program might be 50% parallelizable. CPUs are like head chefs, adept at handling unexpected events; GPUs are like line cooks, mastering repetitive tasks. Chips like Apple's M3 integrate both, combining CPU flexibility with GPU computing power.

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(codingstuff.substack.com)
Tech parallel processing
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