Magic Lantern Rises From the Ashes: New Team, New Hope

2025-09-03

The long-dormant Magic Lantern camera firmware project is back! After years of inactivity, a new core team has revitalized the project, completely overhauling the codebase, build system, and website. They've overcome significant technical hurdles, releasing updated firmware for several Canon cameras (including the 200D, 6D Mark II, 750D, and 7D Mark II), supporting the latest Digic 6 and 7 processors. New features include intervalometer, custom crop marks, shutter count, and more. The 200D even boasts working raw video with DPAF and Dual ISO. While some advanced features are still under development, Magic Lantern's return offers renewed hope for photography enthusiasts.

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Development Camera Firmware

The Dark Side of AI-Assisted Code Generation: A Case Study of Cursor

2025-05-30

This article critically assesses the effectiveness of AI-assisted code generation tools. Using a code modification suggestion showcased on the Cursor editor's homepage as a case study, the author demonstrates how AI-generated code can not only fail to improve productivity but can introduce errors and inefficiencies, such as useless length validation and questionable string sanitization. The author argues that a good AI tool should identify and avoid these issues, providing programmers with the context needed to make informed decisions rather than simply offering a potentially flawed solution. Current AI code generation tools, as exemplified, fall short of this goal, resulting in a net negative impact on productivity.

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Development

EmbedPDF: A Slick, Open-Source JavaScript PDF Viewer

2025-08-15
EmbedPDF: A Slick, Open-Source JavaScript PDF Viewer

EmbedPDF is a framework-agnostic, MIT-licensed, open-source JavaScript PDF viewer easily integrated into any JavaScript project (React, Vue, Svelte, Preact, or vanilla JS). It boasts a smooth, modern reading experience with a clean developer API. Features include annotations (highlighting, sticky notes, free text, ink), true redaction, search, text selection, zoom, rotation, and smooth, virtualized scrolling. It's built with a pluggable architecture and tree-shakable plugins. Contributions are welcome!

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Development PDF viewer

We Built the Saturn V: The Untold Story of the Moon Rocket

2024-12-18
We Built the Saturn V: The Untold Story of the Moon Rocket

This article recounts the development of the Saturn V rocket, the mighty booster that propelled humans to the moon. From President Kennedy's ambitious goal to land a man on the moon, a dedicated team overcame numerous challenges, including the inherent dangers of rocket fuel, the creation of incredibly powerful engines, and the precise assembly of components from across the country. Through firsthand accounts from engineers and technicians, the article vividly portrays the immense effort and dedication behind this incredible achievement, highlighting the human cost and unwavering pursuit of technological advancement.

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2024: Finding Hope Amidst Adversity

2024-12-30
2024: Finding Hope Amidst Adversity

2024 presented the world with numerous challenges: ongoing wars, extreme weather events, and political polarization. Yet, glimmers of hope emerged. Chad eradicated sleeping sickness, the US approved groundbreaking new drugs, research showed even small changes can positively impact health, athletes achieved new records, and progress was made in climate change, such as a decrease in ozone-depleting substances and new carbon capture technologies. Even amidst devastation, humanity demonstrated resilience and mutual support.

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NULL Pointer Dereferences on macOS Apple Silicon: Exploitable No More?

2025-03-21
NULL Pointer Dereferences on macOS Apple Silicon: Exploitable No More?

This article explores why NULL pointer dereference vulnerabilities are no longer exploitable for privilege escalation on Apple Silicon (ARM64) macOS. Historically, attackers manipulated memory mapping (especially in 32-bit systems) to exploit these bugs for code execution. However, macOS has significantly improved its security over the years. Hardware mitigations like SMEP, PAN, and PXN, along with Pointer Authentication Codes (PAC), the removal of 32-bit support, and enhanced kernel memory management make such exploits incredibly difficult, if not impossible. On modern macOS, NULL pointer dereferences primarily result in Denial of Service (DoS), not privilege escalation. The article details these improvements and provides a checklist for researchers before reporting such vulnerabilities.

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fastplotlib: Streamlined Scientific Visualization in Python

2025-03-11
fastplotlib: Streamlined Scientific Visualization in Python

fastplotlib is a new Python library for scientific visualization that prioritizes fast interactive visualization and an easy-to-use API. Its core design treats data as arrays, simplifying data interaction and event handling via simple callback functions. Users can perform dynamic manipulations (e.g., changing colors, data) and build interactive visualizations, such as defining click events, without needing to learn complex, library-specific API features. This streamlined API design lowers the barrier to entry and improves visualization efficiency.

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Development Scientific Computing

Game Devlog: Simplifying Car Physics for an Arcade Racer

2025-07-29
Game Devlog: Simplifying Car Physics for an Arcade Racer

This devlog details the author's journey in simplifying car physics for their racing game. Initially attempting a realistic physics model proved too complex. The author switched to a simplified model, using basic force equations to simulate acceleration, braking, steering, and friction, fine-tuning the experience through coefficient adjustments. Substepping was implemented for increased accuracy. The final result is a controllable car model with a slide effect, further enhanced by an accumulator to simulate grip loss at varying turn intensities.

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Amazon Updates FBA Inventory Reimbursement Policy: Manufacturing Cost Takes Center Stage

2024-12-19

Amazon announced an update to its Fulfillment by Amazon (FBA) inventory reimbursement policy, effective March 10, 2025. The new policy will reimburse sellers based on the manufacturing cost of lost or damaged inventory, with sellers able to provide their own cost or use Amazon's estimate. While aiming for greater transparency and predictability, the change has sparked seller concerns about potentially lower reimbursements, especially for handmade sellers. Amazon also introduced automatic reimbursements for items lost in their fulfillment centers.

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Apple Wallet Ads for F1 Movie Spark User Backlash

2025-06-24
Apple Wallet Ads for F1 Movie Spark User Backlash

Apple is facing user backlash after its Wallet app pushed notifications advertising a $10 discount on Fandango for the F1 movie. iPhone users are upset about receiving marketing promotions within a built-in utility. While the film uses Apple technology, including iPhone parts in its cameras, users don't want ads in their apps. An upcoming iOS 26 beta update will include a toggle to disable these promotions, suggesting Apple plans to increase such marketing. This reminds many of the infamous U2 album automatically added to iTunes years ago. The negative reaction highlights Apple users' aversion to unwanted ads on their devices.

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Tech

The Coleco Adam: A Cautionary Tale of 80s Tech Failure

2025-06-06
The Coleco Adam: A Cautionary Tale of 80s Tech Failure

Coleco's 1983 attempt to break into the burgeoning home computer market with the Coleco Adam ended in spectacular failure. Despite initial hype and anticipation, the Adam fell short, plagued by high and fluctuating prices, delayed releases, a high defect rate, unreliable data storage (data packs prone to unraveling and erasure), and a poorly designed printer (with the power supply integrated, rendering the entire system unusable if it failed). Stiff competition from the Commodore 64 also proved insurmountable. The Adam's failure cost Coleco nearly $50 million and ultimately contributed to the company's demise in 1988. The story serves as a cautionary tale: even a well-conceived product can fail without strong execution and market strategy.

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Tech 80s Tech

Abstraction Boundaries Are Optimization Boundaries: Lifting Abstractions for Database Query Optimization

2025-07-01
Abstraction Boundaries Are Optimization Boundaries: Lifting Abstractions for Database Query Optimization

The N+1 query problem, where an application sends one SQL query per collection element, stems from leaky abstractions. Instead of lowering the abstraction boundary (e.g., explicitly telling the ORM to fetch in bulk), this article proposes raising it. By integrating the ORM into the language, rewrite rules can merge N queries into one. This mirrors Haskell's use of rewrite rules for list optimization, leveraging its declarative nature to abstract away low-level operational semantics for better optimization. The key takeaway: raising the abstraction boundary also raises the optimization boundary.

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Kashmir's Frozen EV Dream: How Cold Weather Is Killing the Electric Revolution

2025-09-15
Kashmir's Frozen EV Dream: How Cold Weather Is Killing the Electric Revolution

Bashir Ahmad, an apple farmer in Kashmir, sold his wife's gold jewelry to buy an electric three-wheeler, hoping to revolutionize his business. However, winter arrived and brought his dreams crashing down. Extreme cold drained 60% of the vehicle's battery overnight, stranding tons of fruit and leaving customers frustrated. This highlights a global crisis: EVs lose significant range in cold temperatures, despite billions spent on technological advancements. The problem is particularly acute in cold regions with poor infrastructure, like Kashmir, where the $2 billion apple industry is significantly impacted. The story raises questions about the practicality and environmental impact of widespread EV adoption in cold climates, showcasing the need for cold-weather-optimized technology and supporting infrastructure before a true electric revolution can take place.

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Self-Hosting Firefox Sync: A Challenging Journey

2025-03-01
Self-Hosting Firefox Sync: A Challenging Journey

The author attempted to self-host a Firefox Sync server. Initially using Mozilla's syncserver repository, they encountered issues due to lack of maintenance and build history problems. Switching to the Rust-based syncstorage-rs, they faced further challenges with confusing Docker deployment documentation. Ultimately, they successfully set up the server using a simplified Docker configuration (syncstorage-rs-docker), managing the database with Docker Compose and MariaDB, and configuring a reverse proxy with Caddy. The process was challenging, and the author shares lessons learned, including database persistence, server storage space, and the importance of following the correct steps.

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Development Self-hosting

Unintuitive Optimization: Speeding Up Path Unions in Skia

2025-01-01
Unintuitive Optimization: Speeding Up Path Unions in Skia

The author encountered performance bottlenecks when performing path union operations on a large number of vector graphics paths using Skia. The initial naive approach of iteratively uniting paths was slow, and while Skia's path builder offered optimization, it wasn't fast enough. Deep diving into Skia's path operation internals revealed that the number of curves in each path significantly impacted performance. By dividing the path union into smaller intervals and recursively applying a divide-and-conquer strategy, the author achieved a significant speedup, ultimately surpassing Skia's default method. Surprisingly, increasing the number of union operations through this method resulted in faster processing.

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Ten Bold Ideas for the Future of Programming Languages

2025-01-08

A seasoned programmer proposes ten innovative ideas for the future of programming languages, covering aspects such as function call mechanisms, capability programming, production-level features, semi-dynamic languages, persistent data stores, truly relational languages, modular monoliths, and modular linting. These ideas aren't entirely novel but rather refinements and integrations of existing concepts, aiming to improve programming efficiency and code quality. The article explores incorporating best practices like structured logging and metrics gathering into the language itself, and enhancing the performance of dynamic languages.

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Development

ESET Recommends Linux as Windows 10 Support Ends

2025-01-05
ESET Recommends Linux as Windows 10 Support Ends

With the end of Windows 10 support looming, ESET warns of significant security risks for millions still using the OS. They recommend upgrading to Windows 11, but suggest a Linux distribution as an alternative for older hardware that can't be upgraded. The article also discusses the high cost of Microsoft's Extended Security Updates (ESU) for Windows 10 and the potential for cybercriminals to exploit this situation.

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Millions of Monkeys Typing: Behind the Scenes of a Billion-Word Project

2025-05-01
Millions of Monkeys Typing: Behind the Scenes of a Billion-Word Project

The monkeys.zip website, featuring thousands of virtual monkeys typing away, has generated over 6 billion words, completing over 75% of Shakespeare's works! The author details the site's architecture: a 15-second 'Tick' mechanism dividing data generation, storage, and database updates into four steps, using sfc32 for deterministic random number generation. Redis caching and database sharding optimize performance. Challenges and future improvements, such as upgrading the server for faster typing speeds, are also discussed.

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Development backend architecture

JSON: A Pragmatic Choice for Machine-Readable Output on Unix

2025-02-24

The author advocates for using JSON as the machine-readable output format, based on their experience deleting emails from a Postfix mail queue. While not perfect, JSON offers several practical advantages on Unix systems: clarity, broad compatibility, extensive tool support, and easy conversion to other formats. For new programs, the author suggests that using only JSON is the simplest approach, avoiding the complexities of designing custom formats and promoting interoperability between Unix programs.

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Cache-Aware Programming in Python: A Surprisingly Significant Performance Difference

2025-04-05

This post investigates the impact of cache-aware programming on Python performance through experiments. Results show that random access to list elements in Python is consistently slower than sequential access, especially when data size exceeds CPU cache. This suggests that even in interpreted environments, cache-aware programming can improve Python program performance. Experiments also compare the performance difference between native Python lists and NumPy arrays, showing NumPy arrays have a significant performance advantage due to their more compact memory layout.

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Model Context Protocol (MCP): A USB-C for AI

2025-03-26

The Model Context Protocol (MCP) is an open protocol standardizing how applications provide context to LLMs. Think of it as a USB-C port for AI: it connects AI models to various data sources and tools. The Agents SDK supports MCP, enabling the use of diverse MCP servers to equip Agents with tools. MCP servers come in two types: stdio servers (local) and HTTP over SSE servers (remote). Caching the tool list minimizes latency. Complete examples are available in the examples/mcp directory.

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AI

Apple Launches Apple Invites: A New App for Seamless Event Planning

2025-02-04
Apple Launches Apple Invites: A New App for Seamless Event Planning

Apple unveiled Apple Invites, a new iPhone app designed to simplify event planning. Users can create custom invitations, share them easily, manage RSVPs, and even contribute to shared albums and collaborative Apple Music playlists. The app integrates with Maps and Weather for convenient guest information. Apple Intelligence features (available on select iPhone models) allow users to create unique invitations using AI-powered image generation and writing tools. Anyone can RSVP, regardless of Apple account ownership, while iCloud+ subscribers gain access to expanded storage and other premium features.

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Database Design Principles: The Truth is Out There

2025-05-19

This article delves into the core principles of database design, highlighting their importance in accurately reflecting business reality. The author criticizes the lack of formal training in database design among software developers, leading to widespread use of ad-hoc methods and resulting data anomalies and inconsistencies. Several database design principles are listed, including the Principle of Orthogonal Design, Principle of Expressive Completeness, and Principle of Full Normalization. The author introduces a new principle, the Principle of Essential Denotation, emphasizing the use of natural keys to identify relations and avoid the semantic disconnect caused by surrogate keys. Using SQL code examples, the author demonstrates how adhering to these principles avoids the high cost of poor design, ultimately building accurate and reliable information systems.

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Development data modeling

Morph: An Embeddable Fullstack HTMX Library with No Build Step

2025-05-19
Morph: An Embeddable Fullstack HTMX Library with No Build Step

Morph is an embeddable fullstack library for building hypermedia-driven applications without a build step, based on HTMX. It combines the best of SSR, SPA, and islands architecture, while sticking to plain HTML, CSS, and JS. Created while optimizing Telegram Web App development with Deno and Deno Deploy, Morph offers a lightweight alternative to complex frontend/backend setups using React or Vue, proving especially efficient for smaller projects. Currently running on Hono, with potential future backend support, Morph boasts several key advantages: components call APIs returning hypertext (other components); all components server-side render with server-side context access; independent component rendering and re-rendering; hierarchical component structure with nesting and API returns; minimal to no client-side JavaScript; no build step; no upfront API data structure design; embeddable in any Deno/Node/Bun project. Ideal for scenarios where separating frontend and backend isn't necessary, like small Telegram bots, desktop apps, or internal tools.

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Development Fullstack Framework

Amtrak's Rail Revolution: A Once-in-a-Lifetime Transformation

2025-08-08
Amtrak's Rail Revolution: A Once-in-a-Lifetime Transformation

Amtrak is capitalizing on a unique opportunity to revolutionize rail travel in the US. By modernizing, upgrading, and expanding its trains, stations, and infrastructure, Amtrak is responding to the growing demand for rail journeys. Offering unforgettable experiences to over 500 destinations across 46 states and parts of Canada, Amtrak invites you to learn more at Amtrak.com, download the app, connect on X, Instagram, Facebook, and LinkedIn, and join Amtrak Guest Rewards for free points towards reward travel, upgrades, lounge access, and more.

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Devenv Simplifies Rust Application Packaging in Nix

2025-08-23
Devenv Simplifies Rust Application Packaging in Nix

Devenv solves the problem of choosing a Rust application packaging tool in Nix. It simplifies development environment configuration with `languages.rust.enable`, providing tools like cargo and rustc. `languages.rust.import` uses crate2nix to package applications, eliminating the need for developers to choose between crate2nix, cargo2nix, and other tools. This unified interface extends to other languages, such as Python using uv2nix. Devenv automatically generates Nix expressions, streamlining the packaging and deployment of Rust applications and improving developer efficiency.

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Development

$50k in a Shoebox: A Deep Dive into a Fashion Magazine's Banking Howler

2025-03-05
$50k in a Shoebox: A Deep Dive into a Fashion Magazine's Banking Howler

A fashion magazine article recounted a columnist's $50,000 cash withdrawal, sparking a tech blogger's skepticism about banking procedures. Through meticulous investigation, including on-the-ground fieldwork and Freedom of Information Act requests, the blogger uncovered inconsistencies in the article's details, ultimately casting doubt on its factual accuracy regarding the location of the withdrawal. The story highlights how attention to detail can unravel the truth and exposes potential biases in mainstream media reporting.

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Back to 2007: A Retro Web Dev Adventure

2025-05-31
Back to 2007: A Retro Web Dev Adventure

Tired of the complexities of modern web development, a seasoned programmer decided to go back to basics. He built a simple ranking system using Sinatra, Sequel, and SQLite, rediscovering the joy of web development from 2007. No complex MVC frameworks, no massive databases, just lightweight code and fast responses. He cleverly leveraged the performance of modern hardware, achieving satisfying results with the simplest technology. This brought back the lost joy of programming and rekindled his passion for coding.

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A Naturalist's Artistic and Scientific Exploration of Butterfly Wing Color Patterns

2025-01-24
A Naturalist's Artistic and Scientific Exploration of Butterfly Wing Color Patterns

In 1897, naturalist Alfred G. Mayer published *On the Color and Color-Patterns of Moths and Butterflies*, showcasing unique color projections of butterfly wings. Mayer presented the tonal variations of butterfly wings as geometric patterns, attempting to reveal the underlying principles. However, his method was criticized by renowned naturalist Alfred Russel Wallace for distorting the patterns and hindering species identification. Despite this, Mayer's work transcends scientific research, representing an artistic exploration of color itself. His vibrant color projections remain visually striking today.

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Century-Old Math Conjecture Overturned: New Knot Theory Discovery

2025-09-04
Century-Old Math Conjecture Overturned: New Knot Theory Discovery

Mathematicians have overturned a long-held conjecture in knot theory. It was believed that connecting two different knots would result in a new knot with complexity equal to the sum of the individual knots' complexities. However, researchers recently found a knot simpler than the sum of its parts. This discovery challenges our understanding of knot complexity and offers new insights into fields like protein folding and molecular stability.

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