Published: 2024-11-06 | Origin: /r/programming

The content discusses the challenges of managing multiple SSH keys for the same host, specifically for GitHub accounts. While managing different SSH keys for different hosts is well-understood, the complexity arises when multiple accounts (like personal and enterprise GitHub accounts) share the same host name (github.com). The author illustrates the issue using an example where one personal account (fry) and one enterprise account (fry_plnx) both use github.com as the host, leading to potential SSH key conflicts. The

Published: 2024-11-06 | Origin: /r/programming

The Unicode Standard includes characters that have case distinctions but are not classified as either uppercase or lowercase, highlighting the existence of a "title case." Some Unicode characters represent diagraphs, which are combinations of two letters treated as a single letter in certain languages, such as Hungarian. For example, the character dz (U+01F1 LATIN SMALL LETTER DZ) represents the "dz" digraph, which is considered a separate letter in Hungarian. However, there are four diagraphs

Published: 2024-11-06 | Origin: /r/ruby

The author is a full-stack Software Engineer specializing in React, JavaScript, and Rails, with two years of remote work experience. Previously, they founded kwiq, a startup focused on hyperlocal delivery in remote villages. The content discusses Rails' ActionController::Parameters, a feature that enables secure handling of request data in controller actions by allowing only permitted attributes for mass updates. It introduces two new methods introduced in Rails 7.1: the `exclude?` method, which checks if a

Published: 2024-11-06 | Origin: /r/ruby

In a post by Daniel Lempesis dated October 30, 2024, he discusses the challenges of optimizing SQL database performance in Rails applications. Unlike NoSQL databases, which scale horizontally easily, SQL databases like PostgreSQL and MySQL tend to become bottlenecks as a business expands. While SQL databases are efficient, increased loads from a growing customer base necessitate careful optimization strategies. The article outlines basic optimization techniques including eager loading, addressing the N+1 query problem, database indexing, and

Published: 2024-11-06 | Origin: /r/programming

The content discusses methods for error handling in Bash scripts, highlighting that while Bash lacks built-in try-catch blocks, it provides several effective alternatives. Key methods include: 1. Checking command success with exit codes (zero for success, non-zero for failure). 2. Using conditional statements for specific error conditions. 3. Employing the `set -e` command to exit scripts on errors. 4. Utilizing the `trap` command to handle signals and execute specific code when errors occur. 5. Capt

Published: 2024-11-06 | Origin: Hacker News

The author has developed several unofficial applications for Brown University and previously for Macalester College, including an all-encompassing app called 75grand, a university shuttle tracker, and course catalogs. These projects utilized undocumented APIs, which the author enjoys discovering through various methods, notably using regex patterns in GitHub's code search to find potential API endpoints under Brown's domain. The author found that Brown's researcher database is open source and adheres to a predictable pattern for accessing JSON data, which could be

Published: 2024-11-06 | Origin: /r/ruby

Ruby 3.3 introduces significant enhancements to concurrency, essential for efficiently managing multiple simultaneous tasks, especially in fields like AI and machine learning. The article reviews Ruby's evolved concurrency ecosystem, highlighting various tools and abstractions available for developers: - **Thread API:** For traditional multi-threading. - **Fiber API:** For lightweight concurrency. - **Ractor System:** Enabling parallel execution. - **AsyncIO Libraries:** Such as async and async-io. - **Concurrent Ruby Gem:** Offering

Published: 2024-11-06 | Origin: /r/programming

The article by James Jarvis discusses the importance of Authentication and Authorization in application development, specifically focusing on Role Based Access Control (RBAC). It highlights the differences between the two concepts: Authentication verifies user identity, while Authorization determines user permissions. The piece outlines how to implement RBAC in a Golang application using both a DIY approach with In-Memory RBAC and through the Permit.io Golang SDK. It emphasizes that while developers traditionally created their own authorization systems, recent solutions offer easier and more

Published: 2024-11-06 | Origin: /r/programming

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Published: 2024-11-06 | Origin: Hacker News

Bert Hubert recently implemented a concept he had been considering for years: creating a tool that emits sounds each time a computer sends data to Google. This idea stemmed from his observation of how many websites report user activity to Google without consent. He demonstrated this with a video showing that the official Dutch government jobs site tracks every click, including applications for jobs, without prior user permission. Following its release, the video gained a million views, prompting Hubert to expand the tool's functionality to include trackers from platforms

Published: 2024-11-06 | Origin: Hacker News

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Published: 2024-11-06 | Origin: Hacker News

Dominikus Baur and Alice Thudt conducted an extensive analysis of title drops in movies, which occur when a character mentions the film's title. This analysis encompasses 73,921 movies spanning 80 years, focusing on the occurrence frequency, context, and potential implications of title drops in relation to film quality. They explore the prevalence of this phenomenon amid a rise in postmodern, self-referential storytelling. The researchers utilized data from English movie subtitles and IMDb to examine films released between 194

Published: 2024-11-05 | Origin: Hacker News

The provided content appears to be a fragment of a PDF file in its raw format, including PDF-specific object definitions and streams. It does not contain understandable textual content but instead consists of binary data and structure elements typical of a PDF document, such as object identifiers and stream data. The information does not convey any clear message or summary due to its encoded nature.

Published: 2024-11-05 | Origin: Hacker News

The "Wheel of Reincarnation" is a concept in the computer industry where specialized hardware evolves and gains power before reintegrating into main computing systems. The essay discusses an analogous phenomenon occurring within computing platforms, driven by a pursuit of "freedom" rather than merely technical factors. Historically, various computing systems such as minicomputers and microcomputers were expected to replace mainframes, but these predictions did not come true. Despite expectations, mainframes have persisted, while minicom

Published: 2024-11-05 | Origin: Hacker News

A female winged argonaut, a small shelled octopus also known as a paper nautilus, was observed by photographer Harris Narainen while he was night diving in Anilao, Philippines, in 2019. After his dive leader pointed out a bright yellow object, Narainen discovered the argonaut clinging to a plastic candy wrapper, making for an exciting sight as it glided through the water. Unlike most octopuses that dwell near the ocean floor, argonauts inhabit

Published: 2024-11-05 | Origin: Hacker News

The November 2024 issue of IEEE Spectrum features the announcement of the National Semiconductor Technology Center (NSTC) locations as part of the U.S. CHIPS Act's $13 billion R&D initiative. The NSTC will establish a design and collaboration center in Sunnyvale, California, and a lab focused on advanced chipmaking at the Albany Nanotech Complex in New York, which is already home to significant IBM lithography research. The NSTC aims to enhance U.S. semiconductor technology leadership, reduce

Published: 2024-11-05 | Origin: /r/programming

In this article, Raphael Duarte Sena provides a guide on configuring the ESLint library for React projects, specifically using Micro-Frontend projects previously discussed in past articles. ESLint is introduced as a tool that enhances code quality by checking for errors, enforcing style rules, and promoting consistent, bug-free code. The article encourages readers to follow along with a specific setup mentioned in earlier writings. The author, a software engineer with over nine years of experience, aims to help readers improve their development process and team collaboration

Published: 2024-11-05 | Origin: /r/ruby

The content discusses the process of consolidating multiple applications onto a single server by "dockerizing" a Jekyll site, specifically a blog. The author plans to host this static site alongside other Rails applications using Kamal Proxy for SSL management. The steps outlined include creating a Docker container with nginx to serve static HTML files from the Jekyll project's `_site` folder. The author emphasizes the need to set up a configuration for Kamal, including running `kamal init` and adjusting the

Published: 2024-11-05 | Origin: Hacker News

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Published: 2024-11-05 | Origin: /r/ruby

The article discusses the challenges and risks of deploying web applications with Kamal, especially for those without professional Linux server security experience. It emphasizes the goal of deploying a Rails 8 application securely, noting that the top three risks leading to security incidents are critical and should be prioritized. The author stresses the importance of focusing on specific high-risk areas rather than treating all security issues with equal severity. The article also mentions avoiding vulnerabilities in the application's code itself, using a recent case study of a hack involving an exposed