Published: 2025-12-15 | Origin: Hacker News

The author discovered Fuzix, a lightweight operating system derived from UNIX tailored for the Z081 Zilog microcontroller, while exploring hobby operating systems. With a Raspberry Pi Pico on hand, they decided to try Fuzix. The recommended host operating system for compiling Fuzix is Debian Bookworm, which they didn’t have, so they created a Dockerfile to set up the necessary build environment. They checked out the version v0.4 of Fuzix and removed a game from the

Published: 2025-12-15 | Origin: Hacker News

Working quickly has multiple benefits beyond just completing tasks more efficiently. When you work faster, the perceived cost of starting new tasks decreases, making you more likely to take on additional projects. Conversely, slow work can lead to a lack of motivation, as tasks seem too daunting and contribute to a cycle of procrastination. This is true for any to-do list—when items accumulate without being crossed off, it can discourage further additions. This principle also applies to communication, such as email responses; quick replies lead

Published: 2025-12-15 | Origin: Hacker News

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Published: 2025-12-15 | Origin: Hacker News

The author reflects on their experience with learning French, highlighting the disconnect between classroom knowledge and real-life usage. They recall a trip to a cafe in Chartres where, despite successfully ordering coffee in French, they became flustered when faced with the total price, leading them to revert to using their phone instead of attempting to engage further in the language. The author emphasizes that language apps often fail to prepare learners for real-time conversation, particularly under pressure. Years later, while preparing for a move to Québec

Published: 2025-12-15 | Origin: Hacker News

The content discusses the Arborium project, which enhances Tree-sitter highlighting by providing curated grammars and updated highlight queries, facilitating better code parsing and highlighting for multiple platforms including native (macOS, Linux, Windows) and WebAssembly (WASM). Arborium includes a sysroot that simplifies the use of WASM with C code, addressing the challenge of compiling Rust with C's standard library dependencies. The project offers compact HTML markup for highlighted code, omitting JavaScript requirements, and supports ANSI true

Published: 2025-12-15 | Origin: Hacker News

John Varley, the renowned science fiction writer, passed away on December 10, 2025. He first gained prominence in the mid-1970s with his "Eight Worlds" stories, set in a dark future where powerful aliens have wiped out humanity on Earth. Despite the bleak setting, his stories were vibrant and imaginative, showcasing ideas like gender fluidity, the ephemeral nature of wealth, and the ability to bank memories for a fresh start after death. Varley was prolific, often publishing

Published: 2025-12-15 | Origin: Hacker News

CapROS is a new operating system that combines traditional concepts of capabilities with modern performance and resource management techniques. It is designed to be a small, secure, real-time OS featuring orthogonal persistence. CapROS is a continuation of the EROS project, with significant contributions from Jonathan Shapiro and others involved in that initiative. The CapROS project is hosted on GitHub, which is acknowledged for its support of open source software.

Published: 2025-12-14 | Origin: Hacker News

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Published: 2025-12-14 | Origin: Hacker News

In his keynote speech "The Problem of Teaching Physics in Latin America," delivered at the First Inter‑American Conference on Physics Education in 1963, Richard Feynman addresses the challenges of teaching physics, not only in Latin America but globally. He emphasizes that the difficulties in teaching physics are part of a broader educational issue that lacks effective solutions. While many new teaching approaches are proposed, their effectiveness is often untested, whereas traditional methods have been critiqued over time for their faults. Feyn

Published: 2025-12-14 | Origin: Hacker News

The TNS organization welcomes subscribers, promising to deliver top news content Monday through Friday, and encourages following on social media platforms like LinkedIn. In the open-source hardware community, there's a debate over Arduino's new Terms and Conditions following its acquisition by Qualcomm. Adafruit, a key competitor, argues the terms threaten open principles by limiting reverse engineering and asserting extensive monitoring for AI features. However, Arduino defends the changes, stating that they apply only to its Software-as-a-Service cloud applications while maintaining its

Published: 2025-12-14 | Origin: Hacker News

The content discusses a Progressive Web App (PWA) created for the author's wife and daughter, allowing them to order hot chocolate and coffee from home, with the author acting as the barista. It serves as a convenient solution for specific beverage requests and social gatherings. The app, built with Nuxt 3 and Appwrite, features Web Push notifications for order updates. Feedback highlights that the ordering buttons are in French despite the rest of the app being in English, and suggests implementing multi-select and nullable

Published: 2025-12-14 | Origin: Hacker News

The content outlines the usage and support for the Mathlib library, a user-maintained library for the Lean 4 theorem prover that includes programming tools and mathematical resources. Key points include the importance of user feedback, installation guides, and links to documentation. Users can access community discussions via Zulip and find help with their projects. Installation steps include obtaining precompiled files and building the library with specific commands. The content also encourages engagement with the community for support and collaboration.

Published: 2025-12-14 | Origin: Hacker News

Migratory birds and sea turtles are among various life forms capable of navigating using the Earth's magnetic field, a phenomenon known as magnetoreception. This ability has evolved in numerous species for evolutionary advantage. Examples include: - **Magnetotactic bacteria** with magnetite chains functioning as compasses. - **Land plants** that exhibit growth and germination altered by weak magnetic fields. - **Honey bees** possessing magnetite in their abdomens aiding navigation. - **American cockroaches** showing

Published: 2025-12-14 | Origin: Hacker News

The content appears to include a title, "An Implementation of J" by Roger K.W. Hui, followed by sections for a preface and acknowledgments, and the phrase "Ex ungue leonem." However, there is no detailed information or specific content provided in the excerpt to summarize further.

Published: 2025-12-14 | Origin: /r/programming

The author shared a small Python program called Mark V. Shaney Junior, which is a minimal implementation of a Markov text generator inspired by the original Mark V. Shaney from the 1980s. The program consists of about 30 lines of code, focusing on simplicity rather than efficiency. The author engages in exploratory programming as a hobby, often creating tiny programs for recreation and experimentation, particularly with Markov chains. Occasionally, they refine one of these programs and share it on GitHub and

Published: 2025-12-14 | Origin: /r/programming

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Published: 2025-12-14 | Origin: /r/programming

The content discusses the concepts of memory safety and sandboxing, highlighting that they are distinct yet complementary. Memory safety ensures that a program does not access memory in an unsafe manner, while sandboxing restricts a program's capabilities to prevent it from performing dangerous operations. It provides examples illustrating that a program can be memory safe but not sandboxed (as in a pure Java program that can overwrite files) and sandboxed but not memory safe (like an assembly program that can only compute but has memory safety

Published: 2025-12-13 | Origin: Hacker News

In a 2017 piece, the author discussed a technique for creating closures in C using JIT-compiled wrappers, although he noted that it’s rarely needed in practical applications. He initially applied this technique to the `qsort` function, which lacks a context pointer. Recently, he revisited the concept, contemplating improvements, particularly in enhancing Win32 window procedure callbacks by adding a fifth argument for additional context. While using w64devkit on x64, the author intends for the method to

Published: 2025-12-13 | Origin: /r/programming

On Thanksgiving morning, the author discovered that their web service was down, receiving a "503 Service unavailable" error and a cryptic "Runtime version: Error" message. Rather than spend time troubleshooting or contacting support, they noticed a warning about migrating their app from Linux Consumption to Flex Consumption due to the former's impending end of life in September 2028. Having been aware of this issue for weeks while setting up a new app, the realization of a critical error prompted the author to take action and

Published: 2025-12-13 | Origin: Hacker News

The author expresses their enthusiasm for exploring the "lost lists" of Anthony Bourdain, inspired by Greg TeChnoLogY's recent work. They aim to recover these lists using publicly available web archives due to their background in security and crawling, despite lacking access to proprietary storage. The author references their development of a script, `commoncrawl_search.py`, which fetches data from the Common Crawl to search for Bourdain's lists. They highlight collaboration with Claude and outline a method for retrieving