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F#'s Untapped Goldmine: Typed Stack Traces (TST)

2025-01-16

This article explores the little-known Typed Stack Traces (TST) technique in F#, which uses the type system to track errors, solving the problems of error parsing and code maintenance in large monolithic applications. The author argues that TST, combined with Domain-Driven Design (DDD) and a new methodology called "Constraint-Driven Development (CDD)", can revolutionize software architecture and development processes, allowing developers to return to monolithic architectures and waterfall project management, simplifying the work of DevOps and SRE. TST leverages F#'s union types and pattern matching capabilities to create clear error type trees, improving code readability and maintainability. The article uses an interview exercise as an example to detail how to use TST, DDD, and CDD to build a simple REST API.

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(rm4n0s.github.io)
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Nellie Bly: The Daredevil Journalist Who Changed Investigative Reporting

2025-02-05
Nellie Bly: The Daredevil Journalist Who Changed Investigative Reporting

Nellie Bly, born Elizabeth Cochrane Seaman, was an American journalist renowned for her groundbreaking around-the-world trip in 72 days and her exposé on the horrific conditions of a women's asylum. She pioneered a new form of investigative journalism, challenging societal norms and paving the way for female reporters. Bly's life, filled with daring adventures and relentless pursuit of truth, remains a testament to her courage and impact on journalism.

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(en.wikipedia.org)
Tech investigative reporting women in journalism

The AI Code Review Disconnect: Author Tools vs. Reviewer Tools

2025-03-01

Many engineering teams buy AI code review tools hoping to speed up the process, but often find they're not solving the core problem: senior engineers spending too much time reviewing pull requests. While these tools excel at improving code quality *before* review, they don't fundamentally change the reviewer's experience. The author argues that most tools are author-focused, not reviewer-focused. The ideal solution involves a combination of both: author-focused tools for pre-review improvements and reviewer-focused tools to streamline the actual review process itself.

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(avikalpg.github.io)
Development AI code review developer efficiency

Optimizing Ruby's JSON: A Tale of Stack Allocation and Inlining

2025-01-02

This blog post, part four in a series on optimizing Ruby's JSON performance, details the author's journey in improving Ruby's JSON serialization speed. Through meticulous micro-benchmarking and profiling, the author explores stack allocation and inlining techniques. By shifting buffer allocation from the heap to the stack and strategically using inlining, significant performance gains are achieved. However, the article highlights the importance of balancing micro-benchmark improvements with real-world application performance, showcasing a case where optimization negatively impacted larger datasets.

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(byroot.github.io)
Development

Overprovisioning Fiber: Better Safe Than Sorry

2025-03-25

When planning fiber cabling between rooms or buildings, err on the side of caution and install more fiber than you initially need. Future expansion, bandwidth upgrades, and new protocols all demand extra capacity. Furthermore, fiber failures do happen—sometimes inexplicably—and having spare pairs allows for quick recovery. While single-mode and multi-mode fibers have different applications, having sufficient redundancy is crucial for minimizing downtime and costs.

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(utcc.utoronto.ca)
Hardware fiber cabling network infrastructure redundancy

Unveiling Cloud Cost Savings with Bare Metal

2024-12-22

Bare Metal Savings is a tool designed to help users analyze the true cost of cloud computing. It allows users to explore potential savings by using bare metal servers compared to traditional cloud services. Frequently asked questions revolve around price calculation methodology, accuracy, savings calculation assistance, whether it runs on bare metal, its suitability for all users, CapEx vs. OpEx considerations, benchmark availability, smaller instance options, and the inability to choose specific hardware. The tool aims to empower users with a clearer understanding and control over their cloud computing expenses.

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(baremetalsavings.com)
Tech bare metal server

The Rise of Independent Research: Escaping Academia's Walls

2025-02-25

This article explores the resurgence of independent research, focusing on the concept of the "gentleman scientist." Historically, many prominent scientists relied on personal wealth or family funding for their work, such as Darwin and Joule. Today, academia is often seen as the sole path to research, but this isn't necessary. The article uses Norman Borlaug as an example, showing how a lack of formal training can sometimes lead to more surprising results. While independent research lacks institutional backing and makes validation harder, it also offers greater freedom and risk-taking. The author encourages more people to pursue independent research, sharing their findings publicly to contribute to society.

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(nadia.xyz)
Tech independent research academic system

The Tech Elite's Homeschooling Obsession: Opting Out of Average?

2025-01-14
The Tech Elite's Homeschooling Obsession: Opting Out of Average?

This article explores the rising trend of homeschooling among tech professionals. The author, a homeschooling alum, recounts their experience and observes the shift in homeschooling's social status. While acknowledging the arguments for and against homeschooling, the author argues the primary motivation is a desire to 'opt out' of interacting with average people, believing it will better equip children to change the world. However, concerns are raised about potential social isolation and lack of empathy. Ultimately, the author chooses to keep their children in traditional school, highlighting the benefits of navigating social challenges for healthy development.

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(newsletter.goodtechthings.com)
Misc homeschooling tech elite socialization

Don't Use Cosine Similarity Carelessly!

2025-01-14
Don't Use Cosine Similarity Carelessly!

This article explores the risks of over-relying on cosine similarity for vector comparisons in data science. The author argues that while computationally simple, cosine similarity often fails to capture semantic similarity and can be easily misled by superficial patterns like writing style and typos. The article uses examples to illustrate this problem and proposes several improved methods, including: directly using LLMs for comparison, fine-tuning or transfer learning to create task-specific embeddings, pre-prompt engineering, and text preprocessing. The author emphasizes the importance of choosing appropriate similarity metrics based on specific needs, rather than blindly using cosine similarity.

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(p.migdal.pl)
AI cosine similarity vector comparison

Playing Catch-Up: Val Town's Journey Building an AI Code Assistant

2025-01-03
Playing Catch-Up: Val Town's Journey Building an AI Code Assistant

Val Town's AI code assistant, Townie, has been a journey of chasing the leaders – GitHub Copilot, ChatGPT, Claude, and others. Starting with simple code completion, it evolved to generating full-stack apps using tool calling. This article recounts Townie's development, highlighting efforts in speed improvements, automatic error detection, and differentiated competition. It also looks ahead to integrating more advanced features.

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(blog.val.town)
Development fast iteration

Code Rewrites: Magic Wand vs. Iterative Improvement

2025-01-03

This article explores the pros and cons of code rewrites. Using Netscape's failure as an example, the author argues that rewriting isn't always the best approach. Instead of large-scale rewrites, maintain idealism, imagine a perfect solution (wave a magic wand), and then iteratively improve the existing code. By distinguishing between necessary and accidental complexity, identify improvement directions and continually reflect on "If I could wave a magic wand, what would I want it to be?", ultimately reaching the ideal state.

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(wilsoniumite.com)
Development code refactoring iterative development

Critical Apple Chip Flaws: FLOP and SLAP Attacks

2025-01-28
Critical Apple Chip Flaws: FLOP and SLAP Attacks

Researchers discovered two critical vulnerabilities, dubbed FLOP and SLAP, in Apple's M-series and A-series chips. FLOP exploits the chip's load value predictor (LVP) to steal sensitive data from Chrome and Safari browsers, including information from Gmail, iCloud, and Google Maps. SLAP, targeting primarily Safari, leverages the load address predictor (LAP) for similar data theft. Affected devices include iPhones, iPads, and Macs released since September 2021. While Apple claims to be assessing the risk, researchers have published mitigations and recommend users update their systems.

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(arstechnica.com)
Tech Apple chip vulnerabilities security risk FLOP and SLAP attacks

Apple's Privacy Policy Under Fire: German Regulator Investigates Double Standard

2025-02-14
Apple's Privacy Policy Under Fire: German Regulator Investigates Double Standard

Germany's competition watchdog is investigating Apple's App Tracking Transparency framework (ATTF), alleging a double standard. While Apple enforces strict user data consent rules on third-party developers, the investigation suggests Apple exempts itself, leveraging its vast ecosystem (App Store, Apple ID, connected devices) to collect user data for advertising purposes with less stringent consent requirements. This disparity in treatment, along with simpler consent dialogues for Apple's own apps compared to third-party apps, could constitute unfair competition. Apple has yet to respond.

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(www.theregister.com)
Tech

SVG: Scalable Vector Graphics for Web Design

2025-03-09
SVG: Scalable Vector Graphics for Web Design

This article answers common questions about SVG (Scalable Vector Graphics), covering its definition, image conversion methods, advantages over other formats like PNG and JPEG, sources for free resources, HTML usage, animation techniques, responsive design implementation, optimization, and editing tools. Web designers and developers alike will find practical information on using SVG.

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(websvg.com)
Design

Tig: A Text-Mode Interface for Git

2024-12-17

Tig is an ncurses-based text-mode interface for Git, primarily functioning as a Git repository browser. It also aids in staging changes for commit at the chunk level and acts as a pager for various Git command outputs. Installation instructions, release notes detailing new features and bug fixes, and resources like the homepage, manual, and Q&A section on Stack Overflow are readily available. Bug reports and feature requests can be submitted through the issue tracker or via email.

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(jonas.github.io)
Development command-line interface version control

Nix@NGI: Streamlining Open Source Software

2025-01-24
Nix@NGI: Streamlining Open Source Software

The Nix@NGI team is on a mission to make running open-source software easier, both now and in the long term. Partnering with the NGI Zero consortium, they aim to integrate over 1200 NLnet-funded projects into the Nix ecosystem. The team boasts a diverse skillset, encompassing management, operations, development, and maintenance, and actively welcomes volunteers and trainees. Their work benefits NixOS contributors and enhances open-source accessibility. Future plans include improving tools, processes, and user experience, further propelling open-source software development.

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(discourse.nixos.org)
Development

(Ab)using General Search Algorithms on Dynamic Optimization Problems

2025-02-18

This blog post compares four algorithms – Bellman's principle, Dijkstra's algorithm, Monte Carlo Tree Search (MCTS), and Pontryagin's Maximum Principle – on a simple dynamic optimization toy problem. The author finds that specialized algorithms (Bellman and Pontryagin) are significantly more efficient for this specific problem, while general-purpose algorithms, while capable of finding a solution, are less efficient in terms of speed and memory usage. The post includes animations visualizing the search process of each algorithm and benchmarks comparing their performance.

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(dubovik.eu)
Development dynamic optimization Monte Carlo Tree Search

The Vim Community's Heroic Effort After Bram Moolenaar's Passing

2025-02-16
The Vim Community's Heroic Effort After Bram Moolenaar's Passing

Following the passing of Bram Moolenaar, Vim's creator, in August 2023, the open-source community rallied to keep his project alive. Maintainer Christian Brabandt recounted the inspiring story at VimConf 2024, detailing the challenges overcome: inheriting the GitHub account, migrating infrastructure, and onboarding new maintainers. While Vim is now in maintenance mode, focusing on bug fixes and smaller features, the community remains active, improving documentation and processes to ensure Vim's long-term health. Vim 9.1, dedicated to Moolenaar, was released in January 2024.

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(thenewstack.io)
Development

The Magic of Metalinguistic Programming: Simplifying Code with Interpreters

2025-01-01
The Magic of Metalinguistic Programming: Simplifying Code with Interpreters

This article explores the power of metalinguistic programming, specifically using interpreters to simplify complex code. The author uses Lisp expression simplification as an example, showing how building an 80-line Scheme interpreter and 30 rules can accomplish a task that would otherwise require thousands of lines of code. The key is shifting the programming paradigm to data-driven rule matching, avoiding significant code duplication. While not magic, the author argues this metalinguistic abstraction is a powerful tool worthy of further exploration.

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(ericnormand.substack.com)
Development Metalinguistic Programming Interpreter Code Simplification

$1.5 Billion Crypto Heist: North Korea's audacious theft

2025-02-26
$1.5 Billion Crypto Heist: North Korea's audacious theft

Dubai-based exchange Bybit suffered the largest-ever cryptocurrency heist, losing $1.5 billion in over 400,000 Ethereum and staked Ethereum. Hackers exploited a vulnerability in a 'multisig cold wallet,' transferring the cryptocurrency to a hot wallet and then to wallets under their control. Blockchain analysis firm Elliptic and others linked the attack to North Korean threat actors, consistent with their history of using cryptocurrency theft to fund weapons programs. The incident highlights the vulnerability of even multisig cold wallets, underscoring the ongoing need for enhanced cryptocurrency security.

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(arstechnica.com)
Tech

Rhai: A Safe and Efficient Embedded Scripting Language for Rust

2025-01-20
Rhai: A Safe and Efficient Embedded Scripting Language for Rust

Rhai is an embedded scripting language and evaluation engine for Rust, providing a safe and easy way to add scripting capabilities to any application. It targets all CPU and OS architectures supported by Rust, including WebAssembly, and features a simple, JavaScript-like syntax. Rhai boasts efficient evaluation and tight integration with native Rust functions and types, allowing seamless passing and use of Rust values. Its robust security features protect against malicious attacks such as stack overflows and runaway scripts.

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(github.com)
Development Scripting Language Embedded

Airline Pricing: The Secret Sauce Behind Dynamic Airfares

2025-07-22
Airline Pricing: The Secret Sauce Behind Dynamic Airfares

Ever wondered why airfares fluctuate so wildly? This report dives into the complex system behind airline pricing: fare buckets and inventory management. Airlines don't just sell seats; they manage a dynamic inventory of fares, divided into booking classes (fare buckets) with different prices and rules. We explore the hierarchy of booking classes, how airlines update seat availability across reservation systems, the role of revenue management algorithms, and the evolution from rigid fare classes to modern dynamic pricing. Using industry documentation and technical standards, we reveal how airlines control seat availability and pricing, explaining why the same flight can have wildly different prices. This deep-dive unveils the technology and algorithms that power dynamic airfare pricing.

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(blog.getjetback.com)
Tech Pricing Revenue Management

Go Multi-Key Map Library: go-multikeymap

2025-02-06
Go Multi-Key Map Library: go-multikeymap

go-multikeymap is a performant Go library implementing map data structures with multiple keys. It offers two types: MultiKeyMap and BiKeyMap. MultiKeyMap allows one primary key and multiple string secondary keys, while BiKeyMap requires both keys to be unique. Both are available in concurrent and non-concurrent versions, with benchmarks showing near O(1) access times. The library is easy to use, well-documented, and includes benchmark results for performance evaluation.

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(github.com)
Development Multi-Key Map Data Structure

LLVM C Library Speeds Up GPUs: Running C Code on GPUs

2024-12-14

The LLVM project has released an exciting GPU C library enabling developers to run libc and libm functions directly on the GPU within C/C++ code. The library supports two main modes: as a supplementary library for offloading languages like OpenMP, CUDA, or HIP; and by directly compiling C/C++ code for the GPU. The article details how to use both modes, including compilation options, linking, and specific builds for AMD and NVIDIA GPUs. This library allows developers to leverage the parallel processing power of GPUs, significantly improving performance without needing deep knowledge of complex GPU programming models.

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(libc.llvm.org)
Development GPU programming C library

From New Grad to Meta Staff Engineer in 3 Years: Evan King's Success Story

2024-12-14
From New Grad to Meta Staff Engineer in 3 Years: Evan King's Success Story

Evan King shares his journey of rapidly advancing from a new graduate to a Staff Engineer at Meta in just three years. His six key principles for success include: prioritizing speed and efficiency to free up time for growth; broadening perspective to think strategically like a higher-level engineer; embracing uncertainty and sharing ideas freely; focusing on problem-solving over technical complexity; building goodwill and strong relationships; and maintaining a positive attitude. While acknowledging the role of luck and timing, Evan emphasizes the importance of cultivating sustainable habits that compound over time, focusing on core competencies and strategically utilizing the extra bandwidth created by efficiency.

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(www.developing.dev)
Development career growth promotion software engineering

Running DeepSeek R1 on Your Own Hardware: A Quick and Easy Guide

2025-02-01

This article provides a straightforward guide on running the large language model DeepSeek R1 on your own hardware. Using Arch Linux and the Ollama tool, the author walks the reader through installing, configuring, and running DeepSeek R1. The process requires a computer or VM with a dedicated GPU and some basic Linux knowledge. Security is emphasized; it's recommended not to run this on your main system. Ultimately, the reader can run DeepSeek R1 locally, enjoying a cloud-free, subscription-free, and data leak-free AI experience.

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(linux-howto.org)
Development

Trump Signs Crypto Executive Order, Charting a Path for US Digital Assets

2025-01-23
Trump Signs Crypto Executive Order, Charting a Path for US Digital Assets

President Trump signed a long-awaited executive order on cryptocurrencies, setting a federal agenda to bring US digital asset businesses under friendlier oversight. The order establishes a working group to review existing regulations and propose modifications or revocations within 180 days. It also bans the development of a US central bank digital currency (CBDC). The move is seen as positive for the crypto industry, causing a brief spike in Bitcoin's price before a retracement.

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(www.coindesk.com)
Tech Cryptocurrency

Full-Text Search Engine in 150 Lines of Python

2025-01-24

This article demonstrates building a functional full-text search engine using less than 150 lines of Python code. It starts by downloading English Wikipedia abstracts, then uses an inverted index and TF-IDF (Term Frequency-Inverse Document Frequency) for indexing and ranking. The process covers data preparation, tokenization, filtering, index construction, and search functionality, explaining each step's principles. The result is a surprisingly fast search engine capable of searching and ranking millions of documents, showcasing the core mechanics of full-text search in a concise manner.

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(bart.degoe.de)
Development
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