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LLDB's TypeSystems Part 2: PDB

Published: 2025-07-07 | Origin: /r/programming

The author describes the challenges encountered while implementing PDB (Program Database) parsing for TypeSystemRust, highlighting a series of unexpected complexities. Issues such as inadequate documentation, unclear naming conventions, and cryptic implementations were prominent throughout the process. Despite these hurdles, the author successfully integrated PDB, enabling TypeSystemRust to work with executables targeting both *-gnu and *-msvc, marking significant progress toward its completion. The post signals a shift toward improving the debugging experience in Rust, with interest

Launch HN: Morph (YC S23) – Apply AI code edits at 4,500 tokens/sec

Published: 2025-07-07 | Origin: Hacker News

Morph is an AI tool designed to improve the reliability and speed of code edits by allowing developers to make "lazy" modifications, which reference existing, unmodified lines of code. This method contrasts with traditional approaches that require extensive rewrites or risky search-and-replace tactics. Morph uses a Fast Apply model to quickly implement these changes, making them production-ready. Morph offers two Fast Apply models—morph-v3-fast and morph-v3-large—capable of processing over 4,500 and

Hotwire components that refresh themselves

Published: 2025-07-07 | Origin: /r/ruby

The content is a guest collaboration by Jesper Christiansen, focusing on a pattern that improves the development experience with Hotwire applications in Ruby on Rails. The author shares their frustrations with using turbo_streams and partials, noting the difficulty in managing DOM IDs and passing data. They propose a different approach using a user card component that displays user information and allows the sending of introduction emails. This component updates its state to reflect ongoing processes via Hotwire's refresh functionality. The author illustrates how to implement this

Postgres LISTEN/NOTIFY does not scale

Published: 2025-07-07 | Origin: Hacker News

Recall.ai operates a unique workload, recording millions of hours of meetings monthly, producing extensive data in audio, video, and structured formats like transcriptions and metadata. This structured data is written to a Postgres database by tens of thousands of simultaneous "meeting bots." However, this write-heavy workload caused Postgres to stall due to a bottleneck in its LISTEN/NOTIFY feature, which acquires a global lock during transaction commits, leading to serialization of all commits. Between March 19-22

The ChompSaw: A Benchtop Power Tool That's Safe for Kids to Use

Published: 2025-07-07 | Origin: Hacker News

The ChompSaw, created by designers Kausi Raman and Max Liechty, is a safer tool for kids to use for cutting projects, specifically designed to cut cardboard. It functions as a nibbler with an oscillating cutter protected beneath a puck-like cover, preventing any finger contact. The tool collects cuttings in a bin for recycling, and it costs $250. The author reflects on their own childhood experiences with tools, emphasizing the importance of safety and the potential legal liabilities associated with

I used o3 to profile myself from my saved Pocket links

Published: 2025-07-07 | Origin: Hacker News

Pocket is shutting down, which prompted the author to analyze nearly 900 saved articles accumulated over seven years. While using an AI tool named o3 to create a profile based on these articles, the author sought insights regarding demographics, preferences, and personal details such as age, geographic location, education, and political orientation. o3 provided a detailed response after analyzing themes and sources from the saved articles. The results were surprisingly accurate, revealing personal information that wasn't initially apparent, highlighting how much can be inferred from

Mercury: Ultra-fast language models based on diffusion

Published: 2025-07-07 | Origin: Hacker News

arXivLabs is a platform enabling collaborators to create and share new features on the arXiv website, emphasizing values such as openness, community, excellence, and user data privacy. arXiv partners only with those who adhere to these principles. Users with project ideas that could benefit the community are encouraged to explore arXivLabs. Additionally, individuals can receive status notifications about arXiv's operational status via email or Slack.

Dependent Select

Published: 2025-07-07 | Origin: /r/ruby

The content presents a curated collection of tech-related resources, including episodes focused on infrastructure, hardware, and software. It features non-instructional videos, articles on software, and tutorials aimed at enhancing the learning experience. The invitation to connect suggests openness to discussions and questions on these topics. Additionally, there is a mention of "Quality Ruby Screencasts" as a specific resource.

I'm Building LLM for Satellite Data EarthGPT.app

Published: 2025-07-07 | Origin: Hacker News

The content discusses using multi-spectral satellite imagery in conjunction with large language models (LLMs) and contemporary remote sensing technologies. This approach harnesses the analytical capabilities of LLMs to enhance the interpretation and utilization of satellite data for various applications.

European cloud modules

Published: 2025-07-07 | Origin: /r/programming

Bert Hubert discusses the state of advanced cloud services in Europe, highlighting strengths in hardware operations and software development, particularly in open source. However, he notes a significant gap in the availability of higher-level cloud service providers that businesses need. While European companies can leverage existing hardware and software, they face challenges in modifying software to create scalable and profitable business solutions. Hubert suggests that cooperation among European companies could facilitate the development of high-quality, cloud-service-ready software. He advocates for creating a portfolio of such software

Ruby Threads Explained: A Simple Guide to Multithreading (Part 1)

Published: 2025-07-07 | Origin: /r/ruby

The content compares a Ruby program to a kitchen with a single chef, illustrating how threads allow for concurrent execution similar to having multiple chefs. A thread is created using `Thread.new`, enabling independent task handling. The Global VM Lock (GVL) restricts Ruby to one executing thread at a time, but during tasks like network requests or file I/O, the GVL is released, allowing other threads to run. Race conditions can arise when multiple threads access the same data, which can be managed using

High Performance Image Sensor Processing Using FPGAs [pdf]

Published: 2025-07-07 | Origin: Hacker News

The content provided appears to be a fragment of a PDF file encoded in binary format. The document structure includes metadata references, objects, and a stream of binary data, potentially representing formatted text or images. However, the actual text content and its meaning are not discernible, as it is encoded. PDF files typically contain a combination of text, images, and other media elements, but due to the binary nature of this excerpt, no coherent summary of meaningful content can be extracted.

Belgium is unsafe for CVD (Coordinated Vulnerability Disclosure)

Published: 2025-07-07 | Origin: /r/programming

The author expresses hesitation in warning organizations in Belgium about vulnerabilities due to a negative experience with coordinated vulnerability disclosure (CVD). While unable to discuss specifics, they emphasize the importance of CVD in promoting overall security by responsibly sharing information about vulnerabilities. The process involves coordination to ensure that disclosures are handled appropriately and do not pose additional risks. The author aims to raise awareness about the challenges of engaging in CVD in Belgium, suggesting that potential disclosers should be cautious and aware of what to expect.

Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

Published: 2025-07-07 | Origin: Hacker News

The content discusses a secure, decentralized peer-to-peer messaging app that operates over Bluetooth mesh networks, requiring no internet or servers, just enabling encrypted communication. It emphasizes the importance of user feedback and provides instructions for setting up the project in Xcode, including installing XcodeGen, generating the project, and running it on a target device. The app utilizes an efficient binary protocol optimized for Bluetooth LE, and details about this protocol can be found in the provided Technical Whitepaper. Additionally, the project is in

Swedish Campground (2004)

Published: 2025-07-06 | Origin: Hacker News

To enhance user experience, a special "Apple key" was added to the keyboard, allowing users to invoke menu commands directly through keyboard shortcuts, similar to the Lisa computer. This key, when pressed with another key, selected the corresponding command, and an Apple logo was displayed next to each menu item that had an associated keyboard command to reinforce the connection.

Intel's Lion Cove P-Core and Gaming Workloads

Published: 2025-07-06 | Origin: Hacker News

Lion Cove is Intel’s new high-performance CPU architecture, succeeding Raptor Cove. It offers improvements such as increased instructions per cycle, restructured execution engines, and an additional data cache level. These enhancements lead to notable performance gains in the SPEC CPU2017 benchmark suite, especially in higher IPC categories. In the Arrow Lake platform, Lion Cove competes well against AMD's Zen 5 and performs better than Raptor Cove, all while consuming less power. For gaming performance, tests were conducted using

We've Issued Our First IP Address Certificate

Published: 2025-07-06 | Origin: /r/programming

Let’s Encrypt has announced that it has issued its first certificate for an IP address, a feature that has been frequently requested since its inception in 2015. Previously, only a few certificate authorities offered the ability to obtain certificates for IP addresses. This new option will be gradually rolled out to more subscribers over time. IP addresses serve as the fundamental numerical identifiers for devices on the Internet, with both IPv4 and IPv6 formats. While users typically interact with domain names, IP addresses are used behind the

Nobody has a personality anymore: we are products with labels

Published: 2025-07-06 | Origin: Hacker News

The rise of "therapy-speak" is negatively impacting how we discuss romance, relationships, and personal identity. This therapeutic culture categorizes and labels every personality trait as a problem, making individuals feel that their natural behaviors and feelings are indicative of disorders. A survey showed that a significant portion of Gen Z girls view mental health challenges as part of their identity, a stark contrast to Boomers. This trend reflects a broader modern tendency to explain all aspects of human behavior through psychological and scientific frameworks. Consequently,

The Origin of the Research University

Published: 2025-07-06 | Origin: Hacker News

Universities have been established for over a millennium, yet they were not traditionally centers for research, particularly before the 19th century. In 1800, significant scholarly work was primarily associated with institutions like the British Royal Society and the French Académie des sciences, while universities were considered outdated, particularly in the German-speaking regions. However, at the turn of the 19th century, German universities adopted a novel approach that integrated teaching with research, rapidly becoming influential in various scientific fields. They led

Building the Rust Compiler with GCC

Published: 2025-07-06 | Origin: Hacker News

The author expresses a passion for working on the Rust compiler, specifically focusing on a significant project this summer: bootstrapping the Rust compiler using `cg_gcc` instead of LLVM. Bootstrapping refers to the compiler build process, which consists of three stages. Initially, they use a pre-existing LLVM-based Rust compiler to build a GCC-based code generator. Subsequently, they rebuild the Rust compiler using this GCC codegen, and for verification, they compile it again to ensure both builds produce identical execut