Published: 2025-02-26 | Origin: Hacker News

The post discusses the advantages and disadvantages of reactor lasers compared to MHD generators and diode lasers. While reactor lasers can provide high efficiency and robust designs, their complexity and the need for high operating temperatures are seen as drawbacks. The author poses questions about the performance of fusion reactors as pump sources and the potential of gas dynamic lasers, noting that while theoretically promising, their practical efficiency is low. Additionally, the post mentions concerns about the susceptibility of laser systems to enemy interference due to optics and mirrors being bi-direction

Published: 2025-02-26 | Origin: /r/programming

The content appears to reference a work based on RIES by Robert Munafo and indicates that the website was created by Thomas Ahle, with an option for editing available on Github.

Published: 2025-02-26 | Origin: Hacker News

The content introduces a tool for creating a life map that visualizes one's life in weekly boxes, inspired by Tim Urban's blog post "Your Life in Weeks." This visualization emphasizes the finite nature of life and allows individuals to track significant life events, see progress, and share their life stories with others. The app enables users to document their life's journey by color-coding various life stages, highlighting important memories, and providing detailed notes for each period. Users can also auto-add birthdays and significant world events to

Published: 2025-02-26 | Origin: /r/programming

This resource provides insights into the backend development landscape, keeping users updated on industry expectations and growth opportunities in various tech stacks. It will regularly update based on job listings and the evolving technology sector. Key responsibilities for backend developers include designing and developing scalable services (APIs and microservices) that meet business requirements, writing clean and maintainable code, and creating design documentation. Essential skills include knowledge of data structures and algorithms, object-oriented programming, and strong proficiency in a specific backend language and its frameworks.

Published: 2025-02-26 | Origin: /r/ruby

Daniel Lempesis discusses the limitations of ActiveRecord, Rails' default Object-Relational Mapping (ORM), as applications grow more complex. While ActiveRecord simplifies database interactions and reduces the need for boilerplate code, its basic querying methods can become inadequate for handling intricate data models and relationships. As a result, developers often find themselves needing to rewrite queries and enhance their understanding of ActiveRecord's advanced features. The content emphasizes the importance of employing more complex SQL joins and custom SQL in conjunction with Active

Published: 2025-02-26 | Origin: /r/programming

The content discusses the challenges faced by open-source developers, particularly highlighted by Hector Martin's resignation from the Asahi Linux project. Trevor I. Lasn reflects on the burnout that often afflicts passionate developers who maintain such projects, detailing how their initial enthusiasm can turn into frustration due to user demands for support and features, often without any contribution from the users themselves. Despite the significant technical achievements and the immense value these projects provide, many maintainers receive little to no financial compensation, creating a one-sided relationship

Published: 2025-02-26 | Origin: /r/programming

Dust DDS is a native Rust implementation of the Data Distribution Service (DDS) using the Real-time Publisher-Subscriber (RTPS) protocol developed by S2E Software Systems. It adheres to the minimum DDS profile, utilizing only stable Rust without unsafe code, and has extensive code coverage verified by continuous integration systems. DDS serves as middleware for machine-to-machine communication, focusing on data-centric connectivity by enabling data sharing between publishers and subscribers. Key features include the ability to exchange information through user-defined topics and

Published: 2025-02-26 | Origin: /r/programming

The author experimented with Gleam, a type-safe language for the Erlang virtual machine, while building a feed aggregator that is now open-source. With a background in dynamic languages like Python, JavaScript, and Clojure, and significant experience with Erlang, they've gained a strong understanding of Erlang’s concepts such as processes and resource management. Although they've also explored Rust and appreciated its type system and error handling, they found it complex due to its systems programming overhead and unsatisfactory async concurrency model

Published: 2025-02-26 | Origin: Hacker News

Toyota Motor has completed the first phase of its "Woven City" project, a futuristic urban development southwest of Tokyo designed to integrate new technologies into everyday living. The site spans 175 acres in Susono City, Shizuoka Prefecture, with construction beginning in 2021. Woven City will feature distinct roadways for autonomous vehicles and other transportation methods, dedicated pedestrian areas, and an underground system for deliveries and waste collection. It aims to conduct safety tests across various transportation modes and will also

Published: 2025-02-26 | Origin: Hacker News

DeepGEMM is a library for efficient FP8 General Matrix Multiplications (GEMMs), featuring fine-grained scaling and designed for use with NVIDIA Hopper tensor cores. It requires no compilation during installation, as it compiles kernels at runtime through a lightweight Just-In-Time (JIT) module. The library supports both normal and Mix-of-Experts (MoE) grouped GEMMs and relies on a simple core kernel function of approximately 300 lines of code, making it accessible for learning matrix

Published: 2025-02-25 | Origin: Hacker News

The content discusses feedback from users regarding issues experienced with the "vsc-material-theme" extension for VS Code. Users are expressing frustration, particularly because the extension appears to automatically reinstall even after users attempt to uninstall it. Marketplace comments indicate that others are facing similar problems, leading to dissatisfaction among users. Some comments reference a potential alternative extension by "t3dotgg" and express gratitude to another user, @ahnberg, for helpful advice. Overall, there is a clear concern about the functionality and reliability

Published: 2025-02-25 | Origin: /r/programming

The content emphasizes the importance of feedback and provides a comprehensive guide for securing a tech job abroad. It acknowledges the excitement and challenges of relocating for work, offering insights into critical topics such as resume preparation, job searching, salary negotiation, and understanding relocation packages. The guide suggests using specific keywords, like "relocation" along with job titles, when searching on platforms without relocation filters, such as LinkedIn, to streamline the job search process. Additionally, it includes links to articles, resources, and tools

Published: 2025-02-25 | Origin: /r/programming

On July 27, 2023, a guest post by Andy Warfield, VP and distinguished engineer at Amazon S3, was published, reflecting on his experiences and insights from his keynote address at USENIX FAST '23. Warfield discusses the complexities and considerations involved in building and operating a massive storage system like S3, which is crucial in today's digital world. His career spans various aspects of computer systems, but his time at S3 has expanded his perspective to encompass technical details (like

Published: 2025-02-25 | Origin: Hacker News

The Illinois General Assembly is currently considering a bill, sponsored by Senator Donald P. DeWitte, that would allow public bodies, such as cities and school districts, to withhold information from Freedom of Information Act (FOIA) requests by keeping it in databases. Illinois has a strong FOIA statute that grants public access to most information held by public bodies, requiring them to respond to requests within 5 days. However, the law has limitations, such as not compelling public bodies to create new records

Published: 2025-02-25 | Origin: Hacker News

The author discusses two claims related to using patch diffing and document ranking for identifying N-day vulnerabilities in software security. They demonstrated at RVAsec '24 that listwise document ranking can effectively locate functions in patch diffs that address vulnerabilities specified in security advisories. This approach reframes the problem as ranking diffs by relevance to the advisory rather than requiring specialized security knowledge. The author mentions that document ranking techniques can also aid in other offensive security tasks, such as targeting fuzzing efforts and identifying potential injection

Published: 2025-02-25 | Origin: Hacker News

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Published: 2025-02-25 | Origin: Hacker News

Tach is an open-source Python tool designed to visualize and enforce dependencies and interfaces, inspired by modular monolith architecture. Written in Rust, it can be installed via pip, has no runtime impact, and interoperates with existing systems. The tool allows users to incrementally adopt its functionalities and provides a command-line interface (CLI) for project setup. Users can interactively configure project boundaries, monitor module imports, and visualize dependency graphs. Upon detecting violations of set dependencies, Tach generates errors and can be

Published: 2025-02-25 | Origin: Hacker News

A recent study published in JAMA indicates a correlation between newly minted doctors' scores on medical board exams and patient outcomes, specifically the likelihood of patient mortality and readmission to the hospital. Unlike periodic assessments during residency, which did not show a connection to patient outcomes, the study found that higher board exam scores were associated with lower risks of patients dying within seven days of admission or being readmitted afterward. Conducted by researchers from Harvard Medical School and the American Board of Internal Medicine (ABIM), the

Published: 2025-02-25 | Origin: Hacker News

The author recounts their fascination with file systems, beginning with the Macintosh's user interface in 1984, and their excitement about the Be File System during the late 1990s. Although they hoped ZFS would be adopted for macOS, Apple eventually introduced the Apple File System (APFS) at WWDC 2017. APFS, while not ZFS, brought significant improvements over HFS+, including features like point-in-time snapshots and copy-on-write clones. These clones enable efficient

Published: 2025-02-25 | Origin: Hacker News

The content emphasizes the importance of user feedback and encourages users to engage with the platform. It provides resources like documentation and examples for making websites accessible to AI agents. Users are invited to connect their AI agents to a browser easily and share their projects on Discord. A hosted version for instant browser automation is offered, along with setup instructions using Python and Playwright. Various prompts demonstrate how AI agents can perform tasks such as managing leads in Salesforce, applying for jobs, creating documents in Google Docs, and organizing data