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Improving F# Error Handling: Introducing FaultReport

2024-12-22

This article critiques the shortcomings of F#'s Result type in error handling, highlighting inconsistencies in error types and the problems stemming from using strings as error types. The author proposes FaultReport as an alternative, using an IFault interface to standardize error types and a Report<'Pass', 'Fail> type to represent operation outcomes, where 'Fail must implement IFault. This ensures consistent and type-safe error handling, avoiding the inconveniences of string-based errors. FaultReport further provides Report.generalize for upcasting and a FailAs active pattern for downcasting, facilitating handling of diverse error types. While replacing FSharp.Core's Result is a significant undertaking, the author argues that FaultReport's design offers a valuable improvement to F#'s error handling.

(paul.blasuc.ci)

Development

APL's Scalable Thin-Film Refrigeration Tech: CHESS

2025-07-03

APL's Scalable Thin-Film Refrigeration Tech: CHESS

APL has developed CHESS, a thin-film thermoelectric material, revolutionizing refrigeration. Using only 0.003 cubic centimeters—about the size of a grain of sand—per unit, CHESS leverages established MOCVD manufacturing for scalability and cost-effectiveness. Its potential extends beyond small-scale refrigeration to large-scale HVAC systems, mirroring the scalability of lithium-ion batteries. Furthermore, CHESS can convert temperature differences into usable energy, opening doors for energy harvesting in various applications, from computers to spacecraft. This breakthrough signifies the viability and scalability of high-efficiency solid-state refrigeration.

(www.jhuapl.edu)

Tech thermoelectric material thin-film technology

Nvidia Quietly Kills 32-bit PhysX Support on RTX 50 Series GPUs

2025-02-19

Nvidia Quietly Kills 32-bit PhysX Support on RTX 50 Series GPUs

Nvidia has silently ended support for 32-bit PhysX on its RTX 50 series GPUs. This game-specific physics technology, popular in the early 2000s, is officially retired due to the deprecation of 32-bit CUDA applications support starting with the RTX 50 series. While no 64-bit PhysX games exist, RTX 50 and later GPUs will lack PhysX support entirely. PhysX, once used in major titles like the Batman Arkham trilogy and Borderlands series, offloaded physics calculations from the CPU to the GPU for performance gains. However, its Nvidia-only nature and inflexibility led to its decline. To use PhysX on RTX 50 series cards, users must now utilize an older GPU dedicated to PhysX.

(www.tomshardware.com)

Game GPU Physics

British Airways Pilot Annual Flight Hours

2025-06-27

British Airways Pilot Annual Flight Hours

This article details how British Airways pilots log their annual flight hours. It explains the roles of pilots (Pilot in Command PIC, Pilot 2 P2, PIC Under Supervision PICUS, etc.) and how, according to British Airways Standard Operating Procedures (SOPs), responsibilities are shared between the Captain and First Officer during a sector. For example, during descent, the First Officer will fly the approach until 1000ft AGL, then the Captain takes over for landing. All approaches are monitored approaches.

(jameshard.ing)

Misc flight hours British Airways pilot roles

Train Photography with Line Scan Cameras: A Deep Dive into Image Processing

2025-08-24

Train Photography with Line Scan Cameras: A Deep Dive into Image Processing

This article details the image processing pipeline used by the author to capture stunning train photographs with a line scan camera. Starting with the principle of operation, the author meticulously walks through each step: region of interest detection, speed estimation, resampling, demosaicing, vertical stripe removal, denoising, and skew correction. The author also shares their experiences using AI for coding, comparing the strengths and weaknesses, and showcases the work of other line scan photographers. This is a fascinating technical journey showcasing perseverance and creativity in the world of technology and image processing.

(daniel.lawrence.lu)

Tech line scan camera AI assisted coding

American Cardinal Elected Pope Leo XIV

2025-05-08

American Cardinal Elected Pope Leo XIV

On May 8th, Cardinal Robert F. Prevost, a Chicago native, was elected the 267th Pope, taking the name Pope Leo XIV. He is the first North American to hold the papacy and was a leading contender before the conclave. The announcement was met with jubilant celebrations in St. Peter's Square. Pope Leo XIV, a long-time missionary in Peru holding dual US-Peruvian citizenship, is known for his work promoting church unity and combating clericalism. While facing past allegations of mishandling sexual abuse claims, investigations concluded there was insufficient evidence. His election marks a significant moment in Catholic Church history.

(catholicreview.org)

Misc Catholic Church North America

Tao's New Paper: Delving into Eigenvalue Distribution of GUE and its Minors

2024-12-22

In his latest arXiv preprint, renowned mathematician Terence Tao delves into the distribution of eigenvalues of the Gaussian Unitary Ensemble (GUE) and its minors at fixed indices. Employing determinantal processes and sophisticated analytical techniques, the paper establishes several estimates regarding eigenvalue gaps, addressing previously unanswered questions and paving the way for future work on the limiting behavior of 'hives' with GUE boundary conditions. This research significantly contributes to the understanding of random matrix models and related fields.

(terrytao.wordpress.com)

Development random matrices eigenvalue distribution

Biden Admin to Further Restrict AI Chip Exports in Final Push

2025-01-10

Biden Admin to Further Restrict AI Chip Exports in Final Push

In a final push before leaving office, the Biden administration plans to further restrict the export of AI chips from companies like Nvidia, aiming to prevent advanced technologies from reaching China and Russia. New regulations will create three tiers of restrictions: close allies will face minimal limits; adversaries will be effectively blocked; and most countries will face limits on total computing power, though higher caps can be obtained by meeting US security and human rights standards. Nvidia opposes the proposal, arguing it will harm economic growth and US leadership.

(finance.yahoo.com)

Tech export controls geopolitics

DiffMem: Git-Based Differential Memory for Smarter AI Agents

2025-08-21

DiffMem: Git-Based Differential Memory for Smarter AI Agents

DiffMem is a lightweight, Git-based memory system designed for AI agents and conversational systems. It leverages Markdown for human-readable storage, Git for version control and tracking memory evolution, and an in-memory BM25 index for fast retrieval. This proof-of-concept demonstrates how version control can create efficient, scalable memory for AI. DiffMem treats memory as a versioned repository, separating the current state from historical changes. This allows for efficient queries on the current knowledge while preserving the full history for deeper analysis. It addresses challenges in traditional AI memory systems like scalability and query efficiency, offering a human-readable, easily portable, and auditable solution. The system is composed of a writer agent, context manager, searcher agent, and an API layer. While currently a prototype, DiffMem showcases a promising approach to long-term AI memory management.

(github.com)

Development

Bullfrog Productions: Rise and Fall of a Gaming Giant

2025-08-16

In 1995, EA acquired the prestigious British game studio Bullfrog Productions, home to iconic titles like Theme Hospital and Dungeon Keeper. The article details the tumultuous journey of these games, highlighting the clash between creative vision and commercial pressures under EA's ownership. Peter Molyneux's struggles with the transition and eventual departure after Dungeon Keeper are explored, showcasing the bittersweet success of the games against the backdrop of Bullfrog's ultimate closure by EA, marking the end of an era in game development.

(www.filfre.net)

Game

Python 3.14: Deferred Annotation Evaluation and a New Interpreter

2025-02-10

Python 3.14: Deferred Annotation Evaluation and a New Interpreter

Python 3.14 is here with exciting updates! PEP 649 and PEP 749 introduce deferred annotation evaluation, boosting performance and simplifying annotation writing. A new tail-call-based interpreter offers significant speed improvements (9-15% geometric mean on pyperformance) on specific compilers and architectures. Finally, PEP 741 refines the Python configuration C API, paving the way for future enhancements. These updates combine to make Python faster and more powerful!

(docs.python.org)

Development Annotations

Data-Driven Value Flywheel: Building a Data Ecosystem

2025-01-09

Data-Driven Value Flywheel: Building a Data Ecosystem

In today's competitive landscape, data-driven decision-making is paramount. This article introduces a "Data Value Flywheel" model, a four-phase process (clarity of purpose, challenge and landscape, next best action, long-term value) for building a data ecosystem to achieve sustained growth driven by data. The model emphasizes collaboration between data and business teams, using a data factory as the core engine to ensure the free flow and effective utilization of data within the organization, ultimately achieving continuous business value growth.

(blog.owulveryck.info)

Development data-driven value flywheel data ecosystem

Gleam: A First Impression – Friendly Community Meets Efficient Development

2025-01-25

Gleam: A First Impression – Friendly Community Meets Efficient Development

The author learned and used the Gleam programming language to complete a project before going on paternity leave. He was drawn to Gleam's friendly community, concise design, robust type system, and its compilation support for both Erlang and JavaScript. While encountering minor issues, such as redundant type name typing, he was overall pleased with Gleam and plans to continue learning and using it. He hopes Gleam will one day support WebAssembly/WASI and a Python backend.

(snarky.ca)

Development

Do Cookie-Free Analytics Really Need Cookie Banners?

2025-01-25

This article investigates whether so-called "privacy-aware analytics" tools, claiming to perform website analytics without cookies, truly avoid the need for cookie banners. Delving into EU privacy regulations, particularly the ePrivacy Directive, the author finds that even 'cookie-free' analytics might require consent due to accessing information on user devices (like the User-Agent), thus necessitating cookie banners. The author concludes that current technology struggles to completely circumvent EU data access requirements.

(jfagerberg.me)

Development data analytics EU regulations

connmap: Visualize Your Network Connections on a World Map

2025-07-21

connmap: Visualize Your Network Connections on a World Map

connmap is an X11 desktop widget that displays the geographic location of your current network peers on a world map. It works on Wayland too! Installation is straightforward: clone the repo, install dependencies (listed in the README), and run the executable. Customize map size, position, and update interval. Currently supports only IPv4 and is primarily tested with i3wm.

(github.com)

Development desktop widget network visualization

Font Tester: Say Goodbye to Font Selection Headaches

2025-01-04

Font Tester: Say Goodbye to Font Selection Headaches

Tired of struggling with website font selection? The Font Tester Chrome extension is here to help! Preview over 1000 Google Fonts and custom fonts on any website, compare them side-by-side, adjust size and color, and more. Say goodbye to tedious download-test-delete cycles and hello to efficient design. The free version is powerful enough for many, while the paid version unlocks advanced features and supports open-source development.

(font-tester.foxcraft.tech)

Design web design font testing Chrome extension

Lieferando.de's Stealthy Acquisition of German Restaurant Domains

2025-05-26

Lieferando.de's Stealthy Acquisition of German Restaurant Domains

A data analyst scraped nearly 9 million .de domains from the Common Crawl project, filtering for approximately 30,000 related to German restaurants. A Golang program revealed that about 63% remained active. Surprisingly, around 5.7% (over 1100) of these active domains were 'captured' by Lieferando.de, displaying their logo and a link to their site, rather than redirecting. This suggests Lieferando.de employed this domain strategy before and after the pandemic, using a form of 'domain hijacking' for low-cost SEO and growth hacking. The large number of defunct restaurant domains also reflects the struggles of the German restaurant industry from 2019-2023.

(mondaybits.com)

Tech domain strategy

NIST's Standard Reference Peanut Butter: It's Not What You Think

2025-01-27

NIST's Standard Reference Peanut Butter: It's Not What You Think

The National Institute of Standards and Technology (NIST) doesn't just develop high-tech products; it also creates standard reference materials, like peanut butter. Sounds odd, but NIST's peanut butter isn't for eating. It helps food manufacturers accurately label nutritional information, ensuring food safety and consistency. By testing NIST's peanut butter, manufacturers can calibrate their testing methods and equipment, guaranteeing accuracy on product labels. NIST offers many standard reference materials across various fields, from food to pharmaceuticals, contributing to safer and more reliable products for consumers.

(www.nist.gov)

Tech Standard Reference Material Food Safety

Swift's WebAssembly Journey: Performance, Security, and the Future

2025-04-05

Swift's WebAssembly Journey: Performance, Security, and the Future

The Swift community has steadily improved WebAssembly support over the years, and this article outlines a vision and roadmap for its future. WebAssembly, with its portability, security, and high performance, is ideal for cross-platform applications. Swift's integration with WebAssembly expands its reach and enhances security, particularly in developer tools. Virtualizing Swift macros and SwiftPM plugins using WebAssembly offers stronger security and faster build times. Future goals include increased API coverage in core libraries, improved cross-compilation support, enhanced component model support, and a better debugging experience. The article also delves into platform-specific considerations like debugging, multi-threading, 64-bit address space, and shared libraries, showcasing the potential for Swift's flourishing within the WebAssembly ecosystem.

(forums.swift.org)

Development Cross-platform Development

OSS Rebuild: Rebuilding Trust in Open Source Package Ecosystems

2025-07-22

OSS Rebuild: Rebuilding Trust in Open Source Package Ecosystems

Google's new OSS Rebuild project aims to strengthen trust in open-source package ecosystems by reproducing upstream artifacts. Responding to the rise of supply chain attacks, OSS Rebuild automates the creation of declarative build definitions for PyPI, npm, and Crates.io, providing SLSA provenance meeting SLSA Build Level 3 requirements without publisher intervention. It offers build observability and verification tools, along with infrastructure definitions for organizations to run their own instances. By rebuilding, generating, signing, and distributing provenance, OSS Rebuild helps detect various supply chain compromises like unsubmitted source code, compromised build environments, and stealthy backdoors, enhancing package trust and accelerating vulnerability response.

(security.googleblog.com)

Development

IT Hiring: A Rollercoaster Ride?

2025-02-10

IT Hiring: A Rollercoaster Ride?

While US Bureau of Labor Statistics data paints a bleak picture of IT hiring, Janco Associates argues otherwise. A reclassification of job titles led to a downward revision of over 111,000 positions in November and December 2024, resulting in a net loss of 123,200 IT jobs for the year. However, Janco reports that IT hiring is actually on the rise, with 11,000 new roles added in January 2025. Despite this, January's IT unemployment rate remained at 5.7%, higher than the national average. High demand exists for AI specialists, security professionals, and new technology programmers. Janco predicts IT job growth in the next five years, but anticipates the elimination of many white-collar IT roles due to AI automation.

(www.theregister.com)

Tech IT hiring

What if OpenDocument Used SQLite?

2025-09-05

This article explores a thought experiment: what if the OpenDocument file format, specifically ODP (OpenDocument Presentation), were built around SQLite? The author argues this would yield significant advantages, including smaller file sizes, faster file saving and startup times, reduced memory usage, built-in versioning, and an improved user experience. The limitations of the current ZIP-based approach are detailed, such as difficulties with incremental updates, slow startup, high memory consumption, crash recovery issues, and limited content accessibility. The author proposes replacing ZIP with SQLite and further suggests splitting content into smaller units within database tables for incremental updates and faster startup. Version control via SQLite is also discussed, allowing for the retention of historical versions and simplifying crash recovery. In essence, the article posits that using SQLite as an application file format can dramatically enhance user experience and performance for applications like OpenOffice.

(www.sqlite.org)

Development File Format

Kubernetes-Native High-Availability MQTT Broker Setup

2025-05-18

This post details a fully declarative, Kubernetes-native setup for a highly available MQTT broker using Eclipse Mosquitto and Traefik. It leverages core Kubernetes primitives (Deployments, Services, ConfigMaps, and RBAC) to create a primary and secondary broker, ensuring near-zero downtime failover. A custom controller monitors the primary and switches traffic to the secondary within 5 seconds of failure, maintaining message continuity. Internal MQTT bridging ensures seamless message propagation between brokers, even during failover.

(raymii.org)

Development

MaxBench: Benchmarking GPU Interconnect Impact on Relational Data Analytics

2025-08-29

Researchers introduce MaxBench, a comprehensive framework for benchmarking and profiling relational data analytics workloads on GPUs. It evaluates the performance impact of various GPU models (RTX3090, A100, H100, Grace Hopper GH200) and interconnects (PCIe 3.0, 4.0, 5.0, and NVLink 4.0) on workloads like TPC-H, H2O-G, and ClickBench. Moving beyond traditional metrics like arithmetic intensity and GFlop/s, MaxBench proposes 'characteristic query complexity' and 'characteristic GPU efficiency' and uses a novel cost model to predict query execution performance. The study reveals trade-offs between GPU compute capacity and interconnect bandwidth and uses the model to project the impact of future interconnect bandwidth or GPU efficiency improvements.

(vldb.org)

Development

Automating Responses to Real Estate Spam with LLMs

2025-01-24

The author built a system using LLMs to automatically respond to spam text messages from real estate brokers. The system involves modifying the Android-SMS-Gateway-MQTT app for bidirectional MQTT communication. A Python script listens for incoming texts via MQTT, uses an LLM to generate responses based on pre-defined personalities, and stores conversation context for coherence. Ollama is used for convenient experimentation and personality adjustments. The author shares screenshots of amusing interactions but also notes legal and security considerations.

(evan.widloski.com)

Development

FBI's Warrantless Searches Deemed Unconstitutional, Sparking Calls for Section 702 Reform

2025-01-24

FBI's Warrantless Searches Deemed Unconstitutional, Sparking Calls for Section 702 Reform

A US court ruled that the FBI's warrantless searches of communications, conducted under Section 702 of the Foreign Intelligence Surveillance Act (FISA), violate the Fourth Amendment. The ruling stems from a case involving 3.4 million warrantless searches in 2021. While the judge acknowledged potential exceptions for national security emergencies, the decision emphasizes that the government cannot circumvent warrant requirements simply because data is already held. This ruling reignites calls for Section 702 reform, with digital rights groups urging Congress to mandate warrants for searching US persons' data and increase transparency to protect civil liberties.

(arstechnica.com)

Tech Fourth Amendment

Accidental Discovery: Nanomaterial Harvests Water from Air Without External Energy

2025-05-26

Accidental Discovery: Nanomaterial Harvests Water from Air Without External Energy

A serendipitous observation in a Penn Engineering lab has led to the discovery of a new class of nanostructured materials that can extract water from the air, collect it in pores, and release it onto surfaces without needing external energy. This material, a blend of hydrophilic nanopores and hydrophobic polymers, uses capillary condensation to capture moisture from the air, even at low humidity, and expels it as droplets. The discovery holds promise for passive water harvesting in arid regions and for cooling electronics or buildings using evaporative cooling.

(blog.seas.upenn.edu)

Tech water harvesting passive cooling

Full Source Code of the Legendary Game Elite Released!

2025-01-31

A website has released the complete original 1980s source code for the classic space game Elite, covering versions for BBC Micro, Acorn Electron, Commodore 64, Apple II, and NES. The code is heavily documented, with over 120 in-depth articles explaining its workings. The site also allows you to play the game and experiment with the code, aiming to help appreciate one of the most iconic games of the 8-bit era.

(elite.bbcelite.com)

Game Source Code

Veloren Update Recap: Combat Overhaul, New Items, and Puzzles

2025-03-29

Veloren Update Recap: Combat Overhaul, New Items, and Puzzles

Veloren has seen a flurry of updates in recent months, introducing combat system improvements, shiny new items and equipment, plus puzzles and newspapers to add to the gameplay. The development team released three recap blog posts detailing these updates, covering combat refinements, new item additions, and engaging puzzle elements. These updates demonstrate Veloren's continued development and progress, enriching the player experience.

(veloren.net)

Game Game Update

Mathup: A Speedy Math Expression Parser

2025-03-21

Mathup is a lightweight tool that translates simple mathematical expressions written in an AsciiMath-inspired markup language into structured MathML. Faster than MathJax because it only parses and translates, leaving rendering to the browser, Mathup supports a wide range of mathematical symbols and functions, including fractions, subscripts/superscripts, matrices, and tensors. It offers extensive customization options for fonts, colors, and backgrounds. Developers can use it in the command line, on a server, or in a browser for quick and efficient math expression handling.

(mathup.xyz)

Development math expressions

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