Published: 2024-12-18 | Origin: /r/ruby

A new version of Ruby, 3.4, will be released soon, and as a tradition, the author reflects on new features after ten consecutive years of recaps. Notable features in Ruby 3.4 include the introduction of a default block parameter variable called `it`, which simplifies code, especially for method calls in local contexts. This change improves editor functionality for identifying method references. Ruby 3.4 also advances the concept of frozen string literals by introducing "chilled strings," which

Published: 2024-12-18 | Origin: Hacker News

The article discusses the challenges and frustrations of error handling in Go as codebases grow larger and more complex. Although Go's error handling is designed to be simple—by returning errors as values alongside results—it can lead to chaos due to inconsistent error messages, arbitrary error codes, and a lack of structure. As a result, developers often struggle to determine the cause of errors, whether they stem from user issues, server faults, or coding bugs. To address these problems, the author developed a new error handling

Published: 2024-12-18 | Origin: Hacker News

Ergo is a modern IRC server written in Go, originally known as Oragono. It is a fork of the Ergonomadic IRC daemon and emphasizes user feedback and input. Users can explore a running instance at testnet.ergo.chat and find detailed functionality information on its documentation page. To set up Ergo, users can download the latest release from its GitHub repository, follow specific commands for extraction, and refer to a productionizing guide for running a production network with valid TLS certificates. There are

Published: 2024-12-18 | Origin: Hacker News

The paper introduces Exbody2, a framework designed to help humanoid robots maintain stability while performing complex and expressive movements similar to humans. It employs a whole-body tracking system that allows the humanoid to mimic various reference motions by implementing a simulation-trained model using Reinforcement Learning, which is later adapted for real-world applications. The framework separates keypoint tracking from velocity control and utilizes a privileged teacher policy to improve the mimicry skills of the robot. It effectively enables the robot to accurately replicate dynamic activities like

Published: 2024-12-18 | Origin: Hacker News

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Published: 2024-12-18 | Origin: Hacker News

The content discusses an experimental text editor called "ad" that merges modal editing features similar to vi and kakoune with the extensibility of Plan9's Acme. It is designed as a playground for testing various text editor capabilities, but it is not fully optimized or feature-complete for everyday use. Users are encouraged to explore and provide feedback, even though documentation is scarce and bugs may be present. The editor aims to offer a hybrid experience, integrating external tools while providing a comfortable editing environment without competing

Published: 2024-12-18 | Origin: Hacker News

The excerpt discusses the development and significance of the Saturn V rocket, which played a key role in NASA's lunar missions. The "V" denotes its five powerful F-1 engines, the strongest ever built. Initially, a four-engine variant was proposed, but the final five-engine design was chosen. The Saturn V's origins trace back to a military need for a large satellite launcher, with Wernher von Braun leading the project after President Kennedy's 1961 goal of landing a man on the

Published: 2024-12-17 | Origin: /r/programming

Wilson Spearman, co-founder of Parity, discusses OpenAI's December 11th outage in a recent blog post. OpenAI's detailed incident report reveals that the root cause was a misconfigured telemetry service that overwhelmed Kubernetes API servers in their largest clusters, resulting in widespread service disruptions. The report emphasizes the challenges of operating Kubernetes at scale, highlighting that issues can arise in production environments that do not surface in staging. It stresses the importance of progressive rollouts in production as a safeguard against such outages

Published: 2024-12-17 | Origin: /r/programming

The article discusses the portability of WebAssembly (Wasm), a binary instruction format designed for a stack-based virtual machine and intended to enable applications to run on various platforms, including web browsers and servers. While Wasm is often referred to as a "universal bytecode" due to its ability to abstract away differing architectures, challenges remain, particularly with memory-constrained embedded devices where standard Wasm may not function effectively. The article outlines ongoing standard proposals aimed at overcoming these limitations, highlights recent engineering efforts

Published: 2024-12-17 | Origin: /r/programming

Ruby 3.4 is set to be released on December 25, with a preview available since May. While there aren't major overhauls in this release, there are some notable updates developers should know about. Key language changes include: 1. **Default Frozen Strings**: In Ruby 3.4, strings will be treated as frozen by default. Attempting to modify them will trigger a deprecation warning, with future versions planned to throw exceptions for mutations. 2. **Default Block Parameters

Published: 2024-12-17 | Origin: /r/programming

The article discusses key moments in computing history, focusing on the founding of Microsoft by Paul Allen and Bill Gates in 1975. They created a BASIC interpreter for the Altair microcomputer, which they tested using an emulator they developed based on the Intel 8080 specifications. Their interpreter successfully ran on the Altair, leading to the establishment of their company. The article also highlights Ada Lovelace, often credited as the author of the first computer program, written for a machine that was never built

Published: 2024-12-17 | Origin: Hacker News

The article explores the Moon, Earth's closest celestial neighbor, highlighting its changing appearance and dependable presence in the sky. It invites readers to experience the Moon's journey through interactive features that allow manipulation of views and simulation of its position over time. Users can adjust their perspective to observe the Moon's craters and mountains, track its movement across the sky, and see its illumination change as days pass. The content emphasizes the Moon's movement along an arc during the day and facilitates understanding of how it interacts with our

Published: 2024-12-17 | Origin: /r/programming

Peter Bex, a Scheme and free software enthusiast from the Netherlands, introduces "CRUNCH," a new project by Felix Winkelmann, founder of CHICKEN Scheme. CRUNCH is a compiler for a statically typed subset of the Scheme programming language, specifically adhering to the R7RS (small) standard. It operates on the CHICKEN Scheme system, producing portable C99 code that can be compiled on any platform with a suitable C compiler. Winkelmann's motivation for this project

Published: 2024-12-17 | Origin: /r/programming

Crunchy Data has announced the launch of **pg_incremental**, an open-source PostgreSQL extension designed for automated, incremental batch processing of data. This extension facilitates the creation of data processing pipelines specifically for append-only data streams, such as IoT, time series, and event data. Key features include: - **Continuous Operation**: Once established, a pg_incremental pipeline operates indefinitely until manually stopped. - **Efficient Data Handling**: The extension focuses on incremental processing, making it suitable for

Published: 2024-12-17 | Origin: /r/programming

The content discusses Test-Driven Development (TDD), a software development methodology where tests are written before the actual code. It follows a cycle known as Red-Green-Refactor: 1. **Red**: Write a test that initially fails. 2. **Green**: Write enough code to make the test pass. 3. **Refactor**: Improve the code while ensuring the test still passes. The speaker provides an example of using TDD to create an array sorting function, emphasizing

Published: 2024-12-17 | Origin: Hacker News

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Published: 2024-12-17 | Origin: Hacker News

Langfuse is an open-source LLM engineering platform that offers features such as LLM observability, metrics, evaluations, prompt management, and datasets. It integrates with various tools like LlamaIndex, Langchain, and OpenAI SDK. The platform has a managed deployment option with a generous free tier (hobby plan) that doesn't require a credit card. Langfuse is easy to self-host, needing only a single Docker container and a PostgreSQL database, with templated deployments available for

Published: 2024-12-17 | Origin: /r/programming

Dylan Huang announced the open-sourcing of Konfig's entire codebase, reflecting on the startup's journey since its founding in late 2022. Konfig aimed to simplify API integrations with tools for SDK generation, documentation, and testing. Despite gaining some traction and creating valuable technology, the startup struggled to achieve the desired growth due to challenges in customer acquisition and pricing. After attempting to pivot to a B2B SaaS AI product, they could not find sufficient market traction. Although the venture

Published: 2024-12-17 | Origin: /r/ruby

The content emphasizes the importance of user feedback and highlights the availability of helper queries for gaining insights into SQLite databases using Ecto with Ruby and Rails. It notes the requirement of the sqlite3 gem version 2.3.0 or higher for utilizing the dbstat feature, or the necessity to enable it through a compile flag for lower versions. It provides an overview of various database insights, including: - Total size of tables and indices. - Space utilization information based on the dbstat virtual table. -

Published: 2024-12-17 | Origin: Hacker News

The historic Dwingeloo radio telescope has successfully received faint signals from the Voyager 1 spacecraft, which is about 25 billion kilometers away. Launched in 1977 to explore the outer planets, Voyager 1 is now the most distant and fastest human-made object, traveling through interstellar space. Its signals take 23 hours to reach Earth. Originally built in 1956, the Dwingeloo telescope required modifications, including a new antenna, to tune into Voyager 1's