News Nug
CAP Theorem explained with a horse and carriage

Published: 2025-02-20 | Origin: /r/programming

In the scenario, a king or queen faces a dilemma when attempting to communicate new laws to their subjects amid a flooding issue that blocks road access to some cities. Understanding the importance of everyone being aware of the laws to ensure justice, the ruler sends messengers with tablets containing the laws. However, the flood prevents full delivery, leading to a decision point influenced by the CAP theorem from network theory, which discusses the trade-off between consistency and availability in decentralized systems. Consistency is likened to ensuring all

Creating a chrome extension with rust + leptos -> wasm

Published: 2025-02-20 | Origin: /r/programming

Of course! Please provide the content you'd like me to summarize, and I'll be happy to help.

How I made a "Choose Your Own Path" AI Generated Game

Published: 2025-02-20 | Origin: /r/ruby

The content discusses the author's experience with creating "Choose Your Own Adventure" style stories using various large language models (LLMs). These interactive stories allow readers to make choices that influence the narrative. The generation process starts with Title Generation based on user-selected prompts, followed by Narrative Generation, where the LLM creates the story's text creatively. For Image Generation, a specific formatted prompt for a Stable Diffusion model is created from the narrative, rather than directly using the narrative itself. The process for generating

Magma: A Foundation Model for Multimodal AI Agents

Published: 2025-02-20 | Origin: Hacker News

The content describes the Magma pretraining pipeline, which involves tokenizing texts and encoding images and videos through a shared vision encoder. This process results in discrete and continuous tokens that are input into a large language model (LLM) for generating outputs related to verbal, spatial, and action types. Two key prompting methods are introduced: 1. **Set-of-Mark (SoM)** – This method aids action grounding in images across various applications, helping the model identify clickable UI buttons or robot arms by

Build your own SQLite in Rust, Part 5: Evaluating queries

Published: 2025-02-19 | Origin: Hacker News

In this post, the author discusses the integration of previously covered concepts related to the SQLite file format and a basic SQL parser to create a query evaluator, focusing on handling basic SELECT statements. The evaluator won't yet include features such as filtering, sorting, grouping, or joins, but will serve as a foundation for future enhancements. To begin evaluating queries, the author suggests creating a simple database with a single table (table1) containing two columns: id and value. A caution is provided against using existing

Cursed fire or #define black magic

Published: 2025-02-19 | Origin: /r/programming

The content discusses the feasibility of writing functional code solely using the `#define` directive in C, drawing a comparison to C++ templates, which are Turing complete. It hints at the complexity of the question and introduces a personal project: a simple compiler for a newly invented language named "wend." The author seeks to create engaging and illustrative examples, avoiding conventional examples like Fibonacci calculations. Instead, they aim to create a bonfire animation using terminal escape sequences for output. The author plans to first implement

TinyCompiler: a compiler in a week-end

Published: 2025-02-19 | Origin: /r/programming

The author introduces a series of articles aimed at those curious about how compilers work. Motivated by personal interest, the author created a simple programming language called "wend" (short for weekend) and wrote a translator that compiles wend code into GNU assembly. The goal is to produce a minimal compiler in about 500 lines of Python. The author notes that wend is a basic, strongly typed language similar to C or Java, but lacking features like pointers, arrays, and dynamic memory.

1972 Unix V2 "Beta" Resurrected

Published: 2025-02-19 | Origin: Hacker News

Sure! Please provide the content you would like me to summarize.

Five Kinds of Nondeterminism

Published: 2025-02-19 | Origin: Hacker News

The author notes that there will be no newsletter next week due to teaching a TLA+ workshop and reflects on their focus on formal methods (FM) and TLA+ as their primary revenue source. They express that while most readers may not engage with FM, they prefer to share ideas that are relevant across different fields. One concept discussed is "property strength," which relates to the varying strength of tests. The author explores the theme of nondeterminism in system modeling, categorizing it into five types

Quick Tip: Fix ActiveRecord Connection Pool Errors For Good

Published: 2025-02-19 | Origin: /r/ruby

The article by Adam McCrea addresses the "ConnectionTimeoutError" that often occurs in Ruby on Rails applications, specifically when the application cannot obtain a database connection from the pool in a specified time. This error arises not from the database itself, but from insufficient configuration of the connection pool within Rails. Each Rails process maintains a pool of database connections to support multiple threads, preventing contention for a single connection. To resolve the error, one typically needs to increase the connection pool size, which is set

When Imperfect Systems are Good, Actually: Bluesky's Lossy Timelines

Published: 2025-02-19 | Origin: /r/programming

In system design, achieving perfect consistency, availability, latency, and throughput simultaneously is challenging, if not impossible. Instead, each property should be balanced to find the appropriate fit for the application. The author discusses recent trade-offs made in the design of Bluesky's Following Feed/Timeline to enhance write performance, resulting in a significant reduction in latency while maintaining a user-friendly experience. When a user posts, it is indexed and stored in a database, and a reference is sent to their followers' Timelines

Starpath is 55 bytes

Published: 2025-02-19 | Origin: /r/programming

Lovebyte 2025 was an online sizecoding competition held from February 15 to 16, featuring various size-restricted categories ranging from 32 bytes to 1024 bytes. Coders worldwide anonymously submitted entries, with the 64-byte competition won by "Starpath (Youtube capture)," a small animated raycaster displaying curved 3D geometry and ambient sound. The competition included a download archive with different versions and commented source code, highlighting a version that is only 55 bytes. For newcomers

Restrict Destroying Dependent Rails Associations with dependent: :restrict_with_error Option

Published: 2025-02-19 | Origin: /r/ruby

The `dependent: :restrict_with_error` option in Rails is an effective way to maintain data integrity by preventing the deletion of parent records that have existing associated records. This feature not only preserves historical data but also provides users with clear error messages regarding dependency management. When utilizing associations in Rails, it’s crucial to manage referential integrity. The `dependent: :restrict_with_error` option ensures that records cannot be deleted until their dependencies are adequately addressed, unlike alternatives such as `:destroy`, `

Tetris in PostScript

Published: 2025-02-19 | Origin: /r/programming

The content emphasizes the importance of user feedback and invites readers to refer to the documentation for available qualifiers. It features a Tetris game implemented in PostScript, noting that users can play using the arrow keys and space bar in a specific window, and mentions that the implementation draws inspiration from another project called MeatFighter, while being tested on GhostView for macOS.

Show HN: Mastra – Open-source JS agent framework, by the developers of Gatsby

Published: 2025-02-19 | Origin: Hacker News

Mastra is a specialized TypeScript framework designed for rapidly building AI applications and features. It provides essential components like workflows, agents, RAG, integrations, and evaluations, and can be run locally or deployed to a serverless cloud. Users can acquire API keys from various providers, including OpenAI and Anthropic, with some offering free tiers. To begin using Mastra, the create-mastra CLI tool simplifies the setup process, and users can access the Mastra playground by running `mastra dev

Broken legs and ankles heal better if you walk on them within weeks

Published: 2025-02-19 | Origin: Hacker News

The article discusses the benefits of early weight-bearing after breaking bones, particularly focusing on ankles and legs. Historically, patients were advised to avoid putting weight on a broken limb for about six weeks to play it safe, but newer research indicates that this caution may not be necessary. Studies suggest that allowing individuals to walk on their injuries just weeks after they occur can lead to quicker healing and improved quality of life, enabling a faster return to normal activities. Orthopedic surgeon Alex Trompeter highlights that prolonged immob

Level Up Your Ruby Skills: From Novice to Wizard! πŸ§™β™‚οΈπŸ’Ž

Published: 2025-02-19 | Origin: /r/ruby

The article from Ruby Stack News highlights the journey of mastering the Ruby programming language, emphasizing its elegance and expressiveness. It reminds both novice and experienced developers that true mastery requires dedication and practice, akin to an adventurous quest. The piece invites readers to engage and seek expert Ruby on Rails developers to enhance their projects. The author, a seasoned backend developer with over 10 years of experience in scalable systems and API development using Ruby on Rails, Python, and PHP, also has a passion for integrating hardware and

How AI generated code accelerates technical debt

Published: 2025-02-19 | Origin: /r/programming

A recent report by GitClear highlights a concerning trend in software development, revealing a significant rise in code duplication and a decline in code quality as AI coding tools become more prevalent. The report shows that the ease of creating code with AI assistants has led to the erosion of key engineering principles, such as the don't repeat yourself (DRY) principle. API evangelist Kin Lane noted a dramatic increase in technical debt over a short period, which raises alarms about the long-term impact of using AI for quick coding

Hilt - A Tiny Text Adventure Game engine

Published: 2025-02-19 | Origin: /r/programming

Hilt is a nascent game engine designed for creating text adventure games. To begin using it, developers create a configuration file with a .hilt extension that specifies game elements like players and rooms. Key components include: - **MakePlayer**: Defines the player's starting location on a map, typically at coordinates (0, 0). - **MakeRoom**: Requires three parameters: an ID for the room, its location on the map, and an icon representing it. The main file,

Go-msquic: A new QUIC/HTTP3 library for Go

Published: 2025-02-19 | Origin: Hacker News

The content discusses the go-msquic package, a Go wrapper for Microsoft's QUIC library, designed to facilitate the use of QUIC-based protocols like HTTP/3 for Go developers. It emphasizes that go-msquic's API is similar to quic-go but recommends quic-go for those less experienced with C libraries. Before using go-msquic, developers must build the local MsQuic C library and ensure the requisite C headers and libraries are available through package-config. Instructions are provided for