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Roame: Seeking Founding AI Full-Stack Engineer to Revolutionize Travel

2025-02-04
Roame: Seeking Founding AI Full-Stack Engineer to Revolutionize Travel

Roame, a Y Combinator Summer 2023 company, is revolutionizing travel booking with credit card points and miles. They're hiring their first AI full-stack engineer, requiring 3+ years of experience and expertise in NextJS, Firebase, Go, and mobile development, with a strong understanding of AI pipelines. The role demands ownership, rapid iteration, and a strong work ethic. Roame offers excellent benefits, including free lunch and business-class travel. If you're passionate about travel, points, and building impactful products in a fast-paced startup, this is your chance to make a difference.

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(www.ycombinator.com)
Development AI Full-Stack Engineer Travel

50 Things You Can Do With a Software Defined Radio

2025-09-16
50 Things You Can Do With a Software Defined Radio

This blog post documents a week-long adventure exploring the electromagnetic spectrum using a cheap Software Defined Radio (SDR) USB dongle and antenna kit. The author successfully completed 50 tasks, ranging from listening to FM radio and aircraft communications to receiving weather satellite images and even attempting to track weather balloons. The post details the author's experiences, challenges, and the sheer joy of discovery, showcasing the power of SDRs and the wealth of information hidden in the electromagnetic spectrum.

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(blinry.org)
Tech Electromagnetic Spectrum

Google Launches Experimental Windows App: Alt+Space for Instant Search

2025-09-16
Google Launches Experimental Windows App: Alt+Space for Instant Search

Google has launched a new experimental Windows app in Labs designed for faster information retrieval. Pressing Alt+Space instantly searches computer files, installed apps, Google Drive, and the web without window switching. Built-in Google Lens lets you select and search anything on your screen, easily translating images, solving homework problems, and more. AI Mode provides deeper AI-powered responses with follow-up questions and links.

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(blog.google)
Tech Search App

Bypassing BitLocker Encryption on Windows 11 via Memory Dump

2024-12-30

This article demonstrates bypassing BitLocker encryption on Windows 11 by extracting the Full Volume Encryption Key (FVEK) from memory. By physically accessing the device and abruptly restarting it, an attacker can capture RAM contents, which may contain the FVEK. The author utilizes a UEFI application, Memory-Dump-UEFI, to achieve this. The process involves creating a bootable USB, forcefully restarting the system, booting from the USB, analyzing the memory dump, and using pool tags to locate the FVEK. The article details these steps and emphasizes the use of tools like dislocker to unlock the BitLocker-protected partition. The method is not foolproof and relies on several factors such as speed of memory dump and the timing of the restart.

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(noinitrd.github.io)
Tech Memory Dump Windows Security

Sustainable Router Dev Kit Uses Recycled Fairphone 2 Hardware

2025-03-06
Sustainable Router Dev Kit Uses Recycled Fairphone 2 Hardware

Belgian company Citronics has created a sustainable router development kit using the mainboard of the discarded Fairphone 2 smartphone. The kit, based on a Qualcomm Snapdragon 801 processor, features Ethernet, USB ports, and leverages the phone's existing 4G LTE, WiFi, and Bluetooth connectivity. Citronics calls this a "Circular Microcomputer," focusing on sustainability and using parts from e-waste. Pre-loaded with Alpine Linux, it also supports other Linux distributions. Citronics also partners to create custom gateways based on the Fairphone 2, used in applications like residential heating optimization and machine vision education. The dev kit, priced at €150, is aimed at professional prototyping and R&D, not consumers. Antennas are not included.

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(www.cnx-software.com)
Hardware sustainable hardware dev kit

Hackers Reveal Vulnerability in Europe's Remotely Controlled Power Grid

2024-12-29
Hackers Reveal Vulnerability in Europe's Remotely Controlled Power Grid

A significant portion of Europe's renewable energy production is remotely controlled via longwave radio. While designed to stabilize the grid, this system, using unencrypted and unauthenticated Versacom and Semagyr protocols, is vulnerable to abuse. Researchers analyzed these protocols and demonstrated how vulnerabilities could be exploited to remotely control streetlights, power plants, and potentially cause large-scale blackouts. They also showcased the possibility of using this vulnerability to create a city-wide light art installation.

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(media.ccc.de)
Tech grid security remote control

GitHub's New Project AuthorTrail: Track Your Git Contributions

2024-12-24
GitHub's New Project AuthorTrail: Track Your Git Contributions

AuthorTrail is a new GitHub project designed to help developers track all the files they've ever touched in a Git repository. It features search by author email, hierarchical file tree visualization, a built-in code viewer, and quick opening in your default editor. Built using React, TypeScript, Tailwind CSS, and supporting dark mode, AuthorTrail offers a user-friendly interface. Simply clone the repository, install dependencies, and run to start tracking your contributions.

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(github.com)
Development code contributions

Atuin Desktop: Executable Runbooks That End Copy-Pasting

2025-04-22
Atuin Desktop: Executable Runbooks That End Copy-Pasting

Atuin Desktop is a local-first, executable runbook editor that looks like a doc but runs like your terminal. It combines script blocks, embedded terminals, database clients, and Prometheus charts, solving the problem of teams relying on individual memory and outdated documentation for workflows. With repeatable, shareable, and reliable workflows, Atuin Desktop helps teams escape the struggle of searching Slack and Notion for answers and digging through shell history, ultimately enabling efficient collaboration and automated operations.

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(blog.atuin.sh)
Development runbooks

Byzantine Generals Problem: A Practical Implementation

2025-08-05
Byzantine Generals Problem: A Practical Implementation

This article implements a classic distributed algorithm: the Byzantine Generals Problem. This problem simulates a scenario where a group of generals needs to reach consensus in the presence of traitors. The author implements Lamport's oral messages solution using Python and Flask, demonstrating how consensus can be reached in a system with N nodes and up to M traitors, when N≥3M+1. The article details the algorithm's flow, message paths, and traitor handling strategies. It analyzes the complexity and limitations, ultimately implementing a working system to validate the theoretical correctness. The author also notes the difficulties encountered when using LLMs to implement the algorithm.

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(bytepawn.com)
Development distributed algorithm Byzantine fault tolerance Lamport's algorithm

Stunning Note-Taking App: UI Design and Functionality Perfected

2025-05-09
Stunning Note-Taking App: UI Design and Functionality Perfected

This note-taking app boasts not only strong encryption but also a stunning user interface: intuitive, responsive, and customizable. Features like a folder tree in the left pane, a rich text editor (truly rich and classic), and an automatically generated clickable table of contents (showable/hidable via a hamburger menu, perfect for mobile) showcase its elegant design. A simple calendar, colorful tags, and Monday-starting weeks further enhance the experience. Support for other file types looks even more promising!

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(cryptpad.org)
Design

Arch: A Modular Edge and AI Gateway for Agentic Apps

2025-07-14
Arch: A Modular Edge and AI Gateway for Agentic Apps

Arch is a modular edge and AI gateway proxy server designed to simplify building agentic applications. It handles the tedious low-level work, such as applying guardrails, clarifying ambiguous user input, routing prompts to the correct agent, and unifying access to any LLM, allowing developers to build and ship agentic apps faster. Built on Envoy, Arch offers features like routing, guardrails, and observability, and supports various languages and frameworks. A simple currency exchange agent demo showcases its ease of use, with interaction via curl commands. Arch supports both model-based and preference-based LLM routing strategies and provides detailed logging and observability.

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(github.com)
Development Agentic Apps AI Gateway

AI Writes Code, AI Reviews It? Is That Silly?

2025-05-01
AI Writes Code, AI Reviews It? Is That Silly?

Daksh, co-founder of Greptile, discovered that an AI code generation tool, Devin, was submitting more pull requests than any human engineer. This raises the intriguing question: should AI-generated code be reviewed by AI itself? While LLMs are stateless, each call is independent, this doesn't mean AI perfectly reviews its own code. AI-generated code, while boosting efficiency, may introduce bugs humans struggle to find. Research shows AI is more effective than humans at finding certain types of bugs, although its accuracy still needs improvement. Ultimately, the article argues that while not perfect, AI code review is more effective than humans at finding specific bug types introduced by AI itself.

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(www.greptile.com)
Development

Ren'Py 8.3.4 Released: Open-Source Engine for Interactive Storytelling

2025-02-21

Ren'Py is a powerful open-source visual novel engine used by thousands to create interactive stories for computers and mobile devices, encompassing both visual novels and life simulation games. Its easy-to-learn scripting language and Python scripting capabilities allow for efficient creation of both large visual novels and complex simulation games. The latest version, Ren'Py 8.3.4, is now available, with multilingual documentation support. Developers offer various support channels including forums, Discord, and IRC.

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(www.renpy.org)
Development visual novel

Lithium Battery Pack Test: One Week of Lessons Learned

2025-04-01
Lithium Battery Pack Test: One Week of Lessons Learned

After a week of using a lithium battery pack for power, the author shares their experience. The charging efficiency of the lithium battery pack is very high, and the discharge voltage drops slowly and predictably. In the test, a 1200W vacuum cleaner load did not cause overheating. However, after five consecutive nights of power supply, the voltage of one battery pack dropped sharply. The reason was inconsistencies in capacity due to differences in the number of cells in each pack; packs with fewer cells showed greater capacity increase at lower C-rates. The author solved the problem by adding cells and rebalancing, concluding that slight imbalances are acceptable as long as the packs don't reach their extreme charge or discharge limits.

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(secondlifestorage.com)
Hardware battery pack test

Beyond Prompt Engineering: Context Engineering for Powerful AI Agents

2025-07-01
Beyond Prompt Engineering: Context Engineering for Powerful AI Agents

Context Engineering is emerging as the next frontier in AI, moving beyond simple prompt engineering. It focuses on providing LLMs with comprehensive contextual information for effective problem-solving. The article argues that the success of AI agents hinges on context quality, not just model capabilities. Context Engineering encompasses initial instructions, user prompts, short-term memory, long-term memory, external information retrieval, available tools, and structured output. A successful AI agent, like one scheduling meetings from emails, needs integrated calendar data, email history, and contact information to generate human-like responses instead of robotic ones. The article stresses that Context Engineering is a dynamic system, delivering the right information and tools at the right time, ensuring the LLM can complete its task—the key to building robust and reliable AI agents.

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(www.philschmid.de)
AI Context Engineering

Stroboscopic Tuner in Odin: Precise Pitch Detection and Adaptive Gain

2025-09-08
Stroboscopic Tuner in Odin: Precise Pitch Detection and Adaptive Gain

A developer has created a novel stroboscopic tuner written in Odin. This tuner utilizes the NSDF pitch detection algorithm, boasting smooth visual feedback, manual target note selection, harmonic and vernier modes. It achieves precise pitch detection and visual effects through a single-bin DFT and phase comparator algorithm, incorporating adaptive gain control to maintain consistent visual contrast. Compared to alternative approaches, this tuner offers significant advantages in visual resolution, sensitivity, and latency.

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(github.com)
Development Tuner Pitch Detection

Rust-based SQLite Rewrite Achieves 100x Tail Latency Reduction

2024-12-16

Researchers from the University of Helsinki and Cambridge have rewritten SQLite in Rust, creating Limbo, a project leveraging asynchronous I/O and io_uring to drastically improve performance. By utilizing asynchronous I/O and storage disaggregation, Limbo achieves up to a 100x reduction in tail latency, particularly beneficial in multi-tenant serverless environments. The key improvement comes from replacing synchronous bytecode instructions with asynchronous counterparts, eliminating blocking and enhancing concurrency. While improvements are most pronounced at high percentiles, this makes Limbo ideal for applications demanding high reliability.

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(avi.im)
Development Asynchronous I/O

Gandi's Major Outage: A Cascade of Failures Triggered by SSD Storage

2025-05-05

On March 9th, 2025, Gandi experienced a significant service disruption caused by an SSD storage filer failure, impacting numerous services including email. The outage lasted for hours, with some mailboxes remaining inaccessible until the following day. While no data was lost, the incident highlighted weaknesses in Gandi's redundancy and fault tolerance, including insufficient redundancy in internal monitoring, flawed VM architecture, and insufficient capacity in some redundant systems. Gandi has implemented improvements to redundancy mechanisms, enhanced monitoring, and upgraded storage systems to prevent recurrence.

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(news.gandi.net)
Tech service outage SSD failure system redundancy

Cancer Risk Decreases with Age: Study Unveils Key Protein NUPR1

2024-12-22
Cancer Risk Decreases with Age: Study Unveils Key Protein NUPR1

A new study sheds light on why cancer risk declines after age 80. Researchers found that elevated levels of a protein called NUPR1 in older mice caused cells to behave as if iron-deficient, limiting cell regeneration and thus suppressing both healthy and cancerous growth. The same mechanism was observed in human cells. Lowering NUPR1 or increasing iron levels boosted cell growth. This discovery could lead to new cancer therapies targeting iron metabolism, particularly in older individuals, and may improve lung function in those with long-term COVID-19 effects. The study also suggests that ferroptosis-based cancer treatments are less effective in older cells due to their functional iron deficiency, highlighting the importance of early intervention. Preventing carcinogenic exposures in younger individuals is even more crucial than previously thought.

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(www.sciencealert.com)
Tech cancer NUPR1 protein

Zen 5's Op Cache Disabled: A Deep Dive into its Clustered Decoders

2025-01-24
Zen 5's Op Cache Disabled: A Deep Dive into its Clustered Decoders

This article delves into the instruction fetch and decode mechanism of AMD's Zen 5 processor. Zen 5 uses a unique dual-decoder cluster architecture, with each cluster serving one of the core's two SMT threads. Normally, Zen 5 relies on a 6KB op cache to deliver instructions, with the decoders only activating on cache misses. The author disables the op cache, forcing the decoders to handle all instructions, to evaluate their performance. Tests reveal significant performance drops in single-threaded mode with the op cache disabled; however, in multi-threaded mode, the dual-decoder clusters effectively compensate for the performance loss, even showing performance gains in some multi-threaded workloads. The author concludes that Zen 5's dual-decoder cluster design isn't the primary instruction source but acts as a secondary mechanism, boosting performance in high-IPC and multi-threaded scenarios, complementing the op cache for a balanced performance and power consumption.

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(chipsandcheese.com)
Hardware CPU Architecture

Apple's AI Blunder: Broken Promises and Tarnished Credibility

2025-03-13
Apple's AI Blunder: Broken Promises and Tarnished Credibility

This article criticizes Apple's over-promotion of the "more personalized Siri" features within "Apple Intelligence" at WWDC 2024. The author points out that Apple only demonstrated basic features, while remaining silent on more complex and ambitious functionalities, ultimately resulting in a delay until the following year. This, the author argues, reveals not only the immaturity of Apple's AI technology but also severely damages its reputation for product quality and reliability.

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(daringfireball.net)
Tech

Non-invasive Analysis Unveils Secrets of the Alexander Mosaic

2025-01-27
Non-invasive Analysis Unveils Secrets of the Alexander Mosaic

This PLOS ONE study employed non-invasive analytical techniques to thoroughly investigate the world-renowned Alexander Mosaic. Researchers used portable microscopy, infrared thermography, multispectral imaging, portable X-ray fluorescence, Fourier-transform infrared spectroscopy, and Raman spectroscopy to characterize the mosaic's constituent materials, mineral components, and old protective materials. Findings revealed the geological origins of ten colors used in the mosaic and provided crucial scientific insights for its restoration. The research highlights the immense potential of non-destructive analysis in cultural heritage preservation.

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(journals.plos.org)
Tech non-destructive analysis Alexander Mosaic

Node.js Geospatial Intelligence Server powered by Mapbox APIs

2025-06-11
Node.js Geospatial Intelligence Server powered by Mapbox APIs

This Node.js server leverages Mapbox's Model Context Protocol (MCP) to empower AI applications with robust geospatial intelligence. It provides seamless access to Mapbox's comprehensive location data, including global geocoding, points of interest search, multi-modal routing, travel time matrices, isochrone generation, and static map image creation. Whether building an AI travel assistant, logistics optimizer, or location-based recommender, this server provides the necessary spatial intelligence. Compatible with popular clients like Claude Desktop and VS Code. A Mapbox access token is required.

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(github.com)
Development Geospatial

Xee: A Modern XML Execution Engine in Rust

2025-03-28

The author spent two years building Xee, an XML Execution Engine implemented in Rust, supporting modern XPath and XSLT. More than just a library, Xee is a full programming language implementation, featuring a command-line tool and a Rust library, aiming to revitalize the aging XML technology. The article details Xee's architecture, implementation, and the history and current state of XML, with a call to action for developers to contribute.

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(blog.startifact.com)
Development

Undecidability in Physics: Even a God's-Eye View Can't Predict the Future

2025-03-07
Undecidability in Physics: Even a God's-Eye View Can't Predict the Future

Could Laplace's demon predict the future of the universe? Quantum mechanics, chaos theory, and recent research on 'undecidability' suggest the answer is no. Even with perfect information, the future of certain physical systems is unpredictable. The article uses Cris Moore's pinball machine as a vivid example of undecidability, which transcends chaos, meaning some questions are simply unanswerable, even for a demon with infinite computing power. This research reveals the boundaries of physical knowledge and has profound implications for our understanding of the universe.

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(www.quantamagazine.org)
Tech chaos theory undecidability

TinyZero: Unlocking Reasoning in LLMs on a Budget

2025-01-25
TinyZero: Unlocking Reasoning in LLMs on a Budget

TinyZero is a project demonstrating how to imbue large language models (LLMs) with self-verification and search capabilities at low cost, using reinforcement learning. Built upon veRL and experimenting with the Qwen2.5 series, TinyZero provides detailed instructions for installation, data preparation, and training. Even smaller models can achieve sophisticated reasoning. The project showcases the feasibility of enhancing LLMs via RL, offering a new approach to cost-effective AI research.

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(github.com)
AI Low-cost AI

Undefined Behavior in C/C++: A Tightrope Walk Between Efficiency and Security

2025-03-16

This article delves into the nature of "undefined behavior" in C/C++ and its impact on compiler optimizations and program security. It argues that undefined behavior allows compilers to generate highly efficient code in certain situations, but it can also lead to unpredictable program errors and even security vulnerabilities. Through case studies, the article explains how compilers leverage undefined behavior for optimization and how to mitigate the resulting risks. It advises developers to exercise caution, combining multiple tools and methods to ensure code correctness and security.

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(blog.regehr.org)
Development Undefined Behavior Compiler Optimization

Optimizing GitHub Actions Static Analysis with Finite State Transducers

2025-08-18

The developer of the static analysis tool zizmor optimized its GitHub Actions template injection vulnerability detection using Finite State Transducers (FSTs). By mapping GitHub Actions context patterns to their logical "capability", FSTs reduced the representation size by an order of magnitude (from ~240KB to ~14.5KB) and proved faster and more memory-efficient than previous table- and prefix-tree-based approaches. Furthermore, the FST is pre-computed at compile time, eliminating startup costs. This improvement significantly reduces false positives and enhances detection efficiency.

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(blog.yossarian.net)
Development finite state transducer

Raspberry Pi 500 Modder Successfully Adds M.2 Slot

2024-12-15

A Raspberry Pi enthusiast successfully added an M.2 slot to the Raspberry Pi 500! While the Pi 500 has the header, the slot itself is absent, leading to some controversy. The modder soldered on four tiny capacitors and used a bench power supply to power a bottom pad, enabling the use of NVMe SSDs and other PCIe devices. This modification requires excellent SMD soldering skills and has sparked discussion about the Pi 500's design choices; speculation includes reserving the feature for a future premium model.

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(www.jeffgeerling.com)
Hardware Raspberry Pi 500 M.2 slot Hardware Mod
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