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Object-Oriented Python Enigma Machine Implementation

2025-01-25

This blog post details an object-oriented Python implementation of the Enigma cipher machine. Based on the description in 'The Code Book', the author models each component (rotors, plugboard, reflector, etc.) as a class, simulating the encryption/decryption process. This simplified implementation includes three rotors, a plugboard, and a reflector, omitting the ring setting. The author highlights the ease of simulating the Enigma machine in code compared to physically building one, underscoring the power of modern computing.

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(christopherchmielewski.xyz)
Development Enigma Machine

Mysterious Squares in Windows Filenames: A UTF-16 Surrogate Pair Adventure

2025-02-26

This article describes a curious phenomenon in Windows: many small executables with strange squares in their names appearing in Task Manager. These files are not malicious; the issue stems from the use of UTF-16 surrogate pairs in filenames. UTF-16, to accommodate extended Unicode characters, uses surrogate pairs to represent characters beyond the Basic Multilingual Plane. When string manipulation produces isolated or malformed surrogate pairs, filenames become unrenderable. The article explains surrogate pairs and provides a Python script to generate files with unrenderable filenames, reproducing the phenomenon.

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(zaferbalkan.com)
Development Surrogate Pairs

Code Colocation: The Secret to Maintainable Codebases

2025-02-19

This article champions code colocation as a key to maintainable software. The author argues that keeping code comments, templates, CSS, unit tests, and application state close to their related code significantly improves maintainability, applicability, and ease of use. Compared to scattering these elements across various directories, colocation avoids synchronization issues, makes finding things easier, reduces context switching, and thus lessens technical debt. Examples from modern frameworks like React, Vue, and Angular illustrate the practice, highlighting how colocation boosts readability and simplifies codebase management. The article also addresses strategies for utility functions and resource files, recommending placing them as close as possible to their usage to minimize maintenance overhead and cognitive load.

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(kentcdodds.com)
Development code maintainability code colocation

42: A Powerful Spacecraft Attitude Control System Simulator

2025-01-06
42: A Powerful Spacecraft Attitude Control System Simulator

42 is a comprehensive general-purpose simulation of spacecraft attitude and orbit dynamics, primarily used to support the design and validation of attitude control systems throughout their lifecycle, from concept studies to integration and test. It accurately models multi-body spacecraft attitude dynamics (rigid and/or flexible bodies), and both two-body and three-body orbital flight regimes, simulating environments from low Earth orbit to throughout the solar system. 42 simulates multiple spacecraft concurrently, facilitating studies of rendezvous, proximity operations, and precision formation flying. It also features spacecraft attitude visualization.

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(github.com)
Development spacecraft attitude control simulation

Inside the Ryugyong Hotel: A Rare Glimpse into North Korea's Empty Giant

2025-02-21
Inside the Ryugyong Hotel: A Rare Glimpse into North Korea's Empty Giant

The Ryugyong Hotel in Pyongyang, one of the world's tallest unoccupied buildings, has finally had some of its mystery unveiled by British tour guide Simon Cockerell. After nearly 200 visits to North Korea, Cockerell's connections allowed him access to the peculiar pyramid-shaped structure. His photos reveal a vast emptiness, debunking myths about the building's size and features. Despite its completion, the hotel has never hosted a guest, a testament to North Korea's ambitions and economic struggles, particularly after the fall of the Soviet Union. Today, the Ryugyong's glass facade serves as a nightly LED screen, projecting propaganda and videos, becoming a unique part of Pyongyang's skyline.

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(www.9news.com.au)
Misc North Korea Ryugyong Hotel

Supercharge SQLite with Ruby Functions

2025-01-27

This article demonstrates how to enhance SQLite's capabilities by integrating Ruby functions. The author creates User-Defined Functions (UDFs) to directly call Ruby code within SQL queries, enabling features like generating time-ordered UUIDs, performing regex matching, and calculating statistical measures (e.g., standard deviation and percentiles). The article also explores using the SQLITE_DIRECTONLY flag to prevent issues when accessing custom functions outside the application's process. Overall, this provides a powerful way to boost SQLite's flexibility and functionality, particularly useful for data exploration and analysis.

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(blog.julik.nl)
Development

Russian Threat Actors Exploit Microsoft Device Code Authentication in Widespread Attacks

2025-02-15
Russian Threat Actors Exploit Microsoft Device Code Authentication in Widespread Attacks

Volexity has uncovered multiple Russian threat actors employing sophisticated social engineering and spear-phishing campaigns to compromise Microsoft 365 accounts via Device Code Authentication phishing. These attacks exploit the less-familiar Device Code Authentication workflow, making them difficult for users to recognize as phishing attempts. The campaigns, often politically themed (e.g., focusing on the US administration), impersonate individuals from organizations like the US Department of State and the Ukrainian Ministry of Defence, luring victims into fake Microsoft Teams meetings or application access. Volexity is tracking three threat actors, one potentially linked to CozyLarch (overlapping with DarkHalo, APT29). The effectiveness of this attack stems from exploiting users' unfamiliarity with device code authentication, bypassing traditional security measures. Volexity recommends organizations block device code authentication via conditional access policies and enhance user security awareness training.

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(www.volexity.com)
Tech russian hackers microsoft 365

Gleam 1.9.0 Released: Improved Debugging, Dependency Management, and Performance

2025-03-09
Gleam 1.9.0 Released: Improved Debugging, Dependency Management, and Performance

Gleam, a type-safe and scalable language, has released version 1.9.0 with significant improvements. Key updates include a new `echo` keyword for enhanced debugging, support for Git repository dependencies, performance boosts for bit arrays and list pattern matching in JavaScript, and expanded language server capabilities such as go-to type definition and JSON encoder code generation. Additional improvements include enhanced HexDocs search integration, custom CA certificate support, and streamlined pipeline syntax conversion. This release is a testament to the vibrant Gleam community and its many contributors.

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(gleam.run)
Development

Four Days of AI-Fueled Chaos: My Deskthang Project Meltdown

2025-01-27
Four Days of AI-Fueled Chaos: My Deskthang Project Meltdown

The author aimed to build Deskthang, a project displaying GitLab CI/CD pipeline status using a Raspberry Pi Pico, LCD screen, and RGB LEDs, within a single day. He attempted to leverage AI tools for Zig code development and USB image transfer to the Pico. However, AI misguidance and a flawed understanding of USB communication led to a four-day struggle resulting in messy, dysfunctional code. Key takeaways: AI is a tool, not a co-pilot; deliberate friction improves focus; learning from mistakes is superior to shortcuts; respect the complexity of projects.

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(nemo.foo)
Development Zig programming

JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

2025-04-17
JWST Detects Potentially Biosignature Gases on Exoplanet K2-18b

Using the James Webb Space Telescope, scientists have detected signs of dimethyl sulfide and dimethyl disulfide in the atmosphere of exoplanet K2-18b, chemicals produced by marine life on Earth. While not definitive proof of life, researchers call it the most promising sign yet of life beyond our solar system. K2-18b resides in the habitable zone, possessing the potential for liquid water, making life a possibility. This builds upon prior research identifying methane and carbon dioxide in K2-18b's atmosphere. Although alternative explanations exist, researchers are excited about the discovery and plan further investigation to confirm their findings.

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(www.skyatnightmagazine.com)
Tech biosignature

Federal Data Vanishing: Civil Society Steps Up to Save the Day

2025-02-13
Federal Data Vanishing: Civil Society Steps Up to Save the Day

Hundreds of federal datasets and government websites have mysteriously disappeared or been drastically altered since the start of the Trump administration. Responding to this crisis, civil society organizations are taking action. Harvard's Library Innovation Lab recently released 16 terabytes of archived data.gov, a complete copy of the platform's former holdings. On February 13th at 3 PM Eastern, MuckRock will host an event featuring the Internet Archive and the Harvard Law School Library Innovation Lab, discussing at-risk data, how to access rescued data, and how to contribute to preservation efforts.

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(www.muckrock.com)
Tech government data

SmolGPT: A Minimal PyTorch Implementation for Training Small LLMs

2025-01-29
SmolGPT: A Minimal PyTorch Implementation for Training Small LLMs

SmolGPT is a minimal PyTorch project designed for educational purposes, allowing users to train their own small language models (LLMs) from scratch. It features a modern architecture incorporating Flash Attention, RMSNorm, and SwiGLU, along with efficient sampling techniques. The project provides a complete training pipeline, pre-trained model weights, and text generation examples, making it easy to learn about and experiment with LLM training.

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(github.com)
Development LLM training

Pixel 4a Battery Update Disaster: Old Firmware Gone, Users Trapped

2025-01-29
Pixel 4a Battery Update Disaster: Old Firmware Gone, Users Trapped

Google's Pixel 4a battery performance update has turned into a disaster. The update is causing extreme battery drain for many users, and worse, Google removed the older firmware, making it impossible to roll back. Intended to improve battery life, the update has instead made things significantly worse. Affected users are left with Google's compensation offer: a free battery replacement, $50 cash, or a $100 credit towards a new Pixel. This incident highlights the risks of software updates and Google's shortcomings in handling updates for older devices.

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(www.androidcentral.com)
Tech Battery Update Software Glitch

Optimizing Company Structure with Machine Learning Analogies

2025-02-26

This article explores the surprising parallels between machine learning techniques and effective company organization. The author draws insightful analogies, mapping concepts like dropout, batch normalization, early stopping, L1/L2 regularization, momentum optimization, residual connections, and pre-training/fine-tuning to real-world organizational challenges. From mitigating the risk of key employee departures to improving hiring processes, project management, team communication, knowledge transfer, and fostering a healthy company culture, the author suggests that machine learning principles offer valuable frameworks for optimizing company structure and performance.

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(www.mikealche.com)
Startup Company Management Organizational Structure

SRCL: A Terminal-Aesthetic React Component Library

2025-01-20
SRCL: A Terminal-Aesthetic React Component Library

SRCL is an open-source React component and style repository that helps you build web applications, desktop applications, and static websites with terminal aesthetics. It boasts a comprehensive collection of components, including action bars, accordions, buttons, alert banners, avatars, badges, loaders, blog posts, breadcrumbs, cards, checkboxes, chessboards, code blocks, combo boxes, data tables, date pickers, dashboards, database examples, dropdown menus, empty states, input fields, forms, links, lists, messages, modals, navigation bars, popovers, progress bars, radio buttons, selects, sidebars, sliders, tables, text areas, tooltips, and tree views, all styled with a retro terminal look and feel.

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(www.sacred.computer)
Development Component Library Terminal UI

The Tyranny of Structurelessness: Power Dynamics in the Women's Liberation Movement

2025-01-22

This article examines the pitfalls of 'structureless' organizational forms in the women's liberation movement. Jo Freeman argues that seemingly structureless groups inevitably develop informal power structures, leading to elitism and exclusion. The lack of formal structures results in opaque decision-making processes, with power concentrated in the hands of a few, leaving the majority confused. The author advocates for formal, democratic organizational structures to ensure equitable power distribution and accountability, proposing principles for democratic structuring such as delegation of authority, responsibility, distributed power, and information sharing to foster the healthy development of the women's liberation movement.

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(www.jofreeman.com)
Startup women's liberation organizational structure power dynamics

Google Maps Labels US as 'Sensitive Country' Amidst Gulf of Mexico Name Change

2025-02-01
Google Maps Labels US as 'Sensitive Country' Amidst Gulf of Mexico Name Change

Google Maps has reclassified the United States as a 'sensitive country,' a designation shared with nations like China and Russia, following its confirmation of renaming the Gulf of Mexico to the Gulf of America. This move, prompted by Trump's executive order, has sparked debate, highlighting the impact of political shifts on tech companies' operations and perceptions of the US globally. The reclassification raises concerns about the changing global perception of the United States under Trump's presidency.

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(www.themarysue.com)
Tech Political Impact

Amazon's RTO Mandate Boosts Seattle Downtown, But Still Below Pre-Pandemic Levels

2025-02-17
Amazon's RTO Mandate Boosts Seattle Downtown, But Still Below Pre-Pandemic Levels

Amazon's return-to-office mandate led to a noticeable increase in downtown Seattle foot traffic in January, but numbers remain significantly below pre-pandemic levels. Data shows foot traffic in areas with Amazon offices at 74% of January 2019 levels. Overall downtown foot traffic is up 9% year-over-year, but only 57% of the pre-pandemic average. Despite this, businesses report increased activity. Upcoming events, including a flower show, soccer game, and comic con, are expected to further boost downtown revitalization.

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(seattlemag.com)
Tech Return to Office Seattle

OpenEoX: Revolutionizing Cybersecurity and Product Lifecycle Management

2025-05-12
OpenEoX: Revolutionizing Cybersecurity and Product Lifecycle Management

OpenEoX standardizes End-of-Life (EOL) and End-of-Support (EOS) policies across vendors and open-source maintainers, dramatically reducing cybersecurity risks. It allows organizations to quickly identify unsupported products, enabling timely retirement or replacement of outdated, vulnerable systems. This leads to a more secure IT environment. OpenEoX's machine-readable format enables automated vulnerability management, providing real-time monitoring and alerts for proactive risk mitigation. Further benefits include simplified product management, enhanced customer confidence, and smoother technology transitions.

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(openeox.org)
Tech Product Lifecycle Management

KubeStatus Operator: Easily Add a Status Page to Your Kubernetes Cluster

2025-01-24
KubeStatus Operator: Easily Add a Status Page to Your Kubernetes Cluster

KubeStatus Operator is a free and open-source tool that easily adds a status page to your Kubernetes cluster, displaying the operational status (operational, degraded, or DOWN) of services. Written in Go and utilizing the Kubernetes API to fetch cluster and resource information, KubeStatus provides a simple and convenient way to view the current state of your cluster and resources without needing the kubectl command-line tool or the Kubernetes dashboard. It also offers a user-friendly page that can serve as your main status page.

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(github.com)
Development Status Monitoring Open Source Tool

Tattoos and Cancer Risk: A Twin Study Reveals Increased Hazard

2025-03-04
Tattoos and Cancer Risk: A Twin Study Reveals Increased Hazard

A study using the Danish Twin Tattoo Cohort reveals a heightened risk of lymphoma and skin cancer among tattooed individuals compared to their non-tattooed counterparts. Employing both twin cohort and case-cotwin study designs, the research indicates a stronger association with larger tattoos. The researchers hypothesize that ink deposits may interact with surrounding tissue, triggering an immune response and increased cell proliferation, thus raising cancer risk. However, limitations include a lack of sun exposure data and detailed tattoo type classification. Further research is urged to clarify the etiological pathway of tattoo ink-induced carcinogenesis and inform public health policy.

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(bmcpublichealth.biomedcentral.com)
Tech tattoos cancer risk twin study

PlayAI's Dialog: A New Text-to-Speech Model Outperforming ElevenLabs

2025-02-07
PlayAI's Dialog: A New Text-to-Speech Model Outperforming ElevenLabs

PlayAI has released its Dialog text-to-speech model, boasting multilingual capabilities and exceptional performance. In third-party benchmark tests, Dialog significantly outperformed ElevenLabs v2.5 Turbo and ElevenLabs Multilingual v2.0 in terms of emotional expressiveness and naturalness. Dialog's low latency makes it ideal for applications such as voice agents, contact centers, and gaming. Beyond English, Dialog supports numerous languages including Chinese, French, and German. Its superior voice quality and low latency represent a breakthrough in voice AI.

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(play.ht)
AI voice AI

Becoming a Great Engineer: Beyond the Paycheck

2025-03-09

This article delves into what makes a truly excellent software engineer. It argues that passion and ambition are crucial, going beyond simply collecting a paycheck. The author emphasizes a deep understanding of computer fundamentals, continuous learning, critical thinking, and practical application of knowledge. Specific projects like building a compiler or emulator are suggested, highlighting the importance of building from foundational principles. The article also stresses self-critique and the pursuit of excellence as key elements for growth.

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(0x0001.cc)
Development Learning

The Extraordinary Life of Potoooooooo: A Racing Legend

2025-01-16
The Extraordinary Life of Potoooooooo: A Racing Legend

Potoooooooo, a chestnut thoroughbred with a legendary status, is renowned for his unusual name and spectacular racing career. He won over 25 races, his name, a humorous misspelling of "Potatoes," adding to his colorful story. After retirement, Potoooooooo became a significant sire, his offspring including multiple Epsom Derby winners. His genetic legacy continues to shape thoroughbred racing to this day.

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(en.wikipedia.org)
Misc horse racing thoroughbred pedigree

A Java JIT Compiler and Runtime in Common Lisp: OpenLDK

2025-02-06
A Java JIT Compiler and Runtime in Common Lisp: OpenLDK

OpenLDK is a Just-In-Time (JIT) compiler and runtime environment for Java, implemented entirely in Common Lisp. It bridges the gap between Java and Common Lisp by incrementally translating Java bytecode into Lisp, then compiling it into native machine code. This unique approach allows seamless mapping of Java classes to Common Lisp Object System (CLOS) classes, enabling effortless integration between Java and Common Lisp codebases. While not designed for high performance, OpenLDK offers a practical solution for integrating Java libraries into a Lisp workflow. Currently, it primarily supports Linux and SBCL, and is a work in progress with many features yet to be implemented, such as support for class files beyond Java 8 and bytecode verification.

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(github.com)
Development

Implementing LLaMA3 in 100 Lines of Pure Jax

2025-02-19

This post demonstrates implementing LLaMA3 from scratch using only 100 lines of pure Jax code. The author chose Jax for its clean aesthetics and powerful features like XLA acceleration, JIT compilation, and vmap vectorization. The article details each component of the model, including weight initialization, BPE tokenization, dynamic embeddings, rotary positional encoding, grouped query attention, and the forward pass. Unique Jax features like PRNG key management and JIT compilation are also explained. Finally, the author shows how to train the model on a Shakespeare dataset, providing the training loop code.

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(saurabhalone.com)
Development

Intensional Programming in Joy: Introspection with a Single Operator

2025-02-12

This article explores intensional programming in Joy, a stack-based functional programming language. Joy itself is extensional, lacking the ability to 'dissect' code blocks. The author proposes two intensional operators: 'map' and 'quota', proving their mutual expressibility. While behaviorally equivalent, intensional programs can distinguish a single operator from a subprogram with multiple commands. This opens avenues for exploring weaker notions of equivalence in intensional languages and demonstrates a robust approach to introducing intensionality in minimalist languages like Joy.

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(pithlessly.github.io)
Development Joy language intensional programming

Go 1.24's `go tool`: A Game Changer for Dependency Management

2025-01-27
Go 1.24's `go tool`: A Game Changer for Dependency Management

Go 1.24 introduces a revolutionary change in tool management with the new `go tool` command and the `tool` directive in `go.mod`. Previously, developers relied on `tools.go` or manual installations, leading to performance overhead and dependency bloat. `go tool` elegantly solves these issues. Its caching mechanism speeds up builds, and it prevents unnecessary dependencies, significantly improving developer workflow. While migration might encounter some compatibility hiccups, like with gqlgen, the performance gains and streamlined dependency management make `go tool` one of the most exciting advancements in the Go ecosystem in recent years.

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(www.jvt.me)
Development
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