Published: 2025-01-19 | Origin: /r/programming

The content discusses an indentation-based syntax for Clojure, a dynamic functional programming language. It highlights that this syntax makes it easier for users transitioning from languages like Python. The project functions as both a transpiler and a Leiningen plugin, providing access to various Clojure features, including data manipulation and simple server capabilities. Users can integrate it into their projects by modifying the `project.clj` file and can compile Clojure code to a .jar format using the command `lein cwp

Published: 2025-01-19 | Origin: /r/programming

The content discusses the challenges of indentation in Lisp code, particularly focusing on how to manage parentheses and readability. While Lisp programmers tend to rely on indentation once they become accustomed to the syntax, there are alternative indentation-based syntaxes like Wisp and sweet expressions. The text highlights the problem of long lines of code being unreadable and the necessity for multi-line formatting with appropriate indentation. A common indentation style is presented, which aligns function arguments vertically to improve code structure visibility. However, this style can become cumbersome

Published: 2025-01-19 | Origin: /r/programming

The discussion revolves around the differences between Redis commands UNLINK and DEL. Most people believe that DEL is blocking while UNLINK is non-blocking, making UNLINK the preferable option. However, the author argues that this characterization is an oversimplification. Both commands aim to remove keys from Redis, but they differ in their memory deallocation techniques. UNLINK intelligently decides whether to free an object immediately (like DEL) or send it to a background queue for later processing, based on the deallocation

Published: 2025-01-19 | Origin: Hacker News

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Published: 2025-01-19 | Origin: Hacker News

Infinigen is a procedural generator of 3D scenes created by Princeton Vision & Learning Lab, designed specifically for computer vision research. It operates on a randomized mathematical framework using Blender, and is free and open-source under the BSD 3-Clause License. Infinigen generates diverse, high-quality 3D training data, focusing on natural environments such as plants, animals, terrains, and natural phenomena (e.g., fire, cloud, rain, snow). Users can customize the generation process by overriding

Published: 2025-01-19 | Origin: Hacker News

The author reflects on their experience cataloging Convergent WorkSlate devices and recalls the challenge of connecting a Commodore SX-64 to the WorkSlate using an old program created by John, a previously active contributor to the Commodore community. Despite the WorkSlate's limited telecommunications capabilities, the author's efforts prove successful. They share limited information about John's background and contributions to the community, which include various software utilities. John's last known activity in the Commodore forums was in July 2000, and the

Published: 2025-01-19 | Origin: Hacker News

Forgejo is a self-hosted, lightweight software forge designed for easy installation and low maintenance, focusing on security, privacy, and scalability. It is backed by Codeberg e.V., a non-profit organization committed to Free Software principles. Users can create accounts on Codeberg or download Forgejo for self-hosting, allowing them to take control of their software development processes and ensure collaboration among contributors. With a user-friendly experience that resembles GitHub, Forgejo enables a smooth transition for users while maintaining a

Published: 2025-01-19 | Origin: /r/programming

The content describes a Bash script that serves as a simple terminal-based user interface (TUI) for managing notes, featuring options to create, open, search, and delete notes. It emphasizes the importance of user feedback and encourages contributions through forking and submitting pull requests. The project is licensed under the GNU General Public License v3.0, with further details available in the repository's LICENSE file.

Published: 2025-01-19 | Origin: Hacker News

In the 1970s, Douglas McIlroy faced the challenge of fitting a 250kB dictionary into just 64kB of RAM to implement a spell checker for Unix on the PDP-11 computer. Traditional compression methods could not achieve the necessary size, so he developed a novel compression algorithm that was highly efficient, coming within 0.03 bits of theoretical limits. The Unix spell project began as a prototype by Steve Johnson, but McIlroy enhanced its performance and accuracy by

Published: 2025-01-19 | Origin: /r/programming

The post discusses optimizations for the Ruby JSON parser, specifically highlighting inefficiencies in how Ruby handles certain operations. A flame graph analysis of the `twitter.json` file revealed that 26.6% of the parsing time was spent in `rb_hash_aset`, the C API for assigning values to Ruby hashes. This indicates that the real bottleneck in JSON parsing lies not in the parsing itself, but in constructing Ruby objects, particularly with hash and array operations. The author notes that while there are

Published: 2025-01-18 | Origin: /r/programming

The document discusses strategies for handling communication failures with external APIs in Java development, specifically through the use of retry mechanisms and circuit breakers. **Retry Mechanism:** - A retry mechanism is implemented to automatically resend failed requests due to transient network issues. - It involves retrying the request a limited number of times (e.g., 5 attempts) using exponential backoff with jitter. This means the wait time between retries increases exponentially, and a random delay (jitter) is added to prevent multiple

Published: 2025-01-18 | Origin: /r/ruby

Jon Sully outlines the process of integrating OpenAI's Realtime API into a Rails application for enabling AI-driven phone calls via Twilio. He emphasizes that the guide is intended for users who already have some experience with Twilio integration in their Rails apps, as it won't cover the basics of Twilio. The focus is specifically on one-to-one calls between the OpenAI Realtime model and end customers, rather than multi-party calls. Sully provides a toolkit for those who want to enhance their existing

Published: 2025-01-18 | Origin: Hacker News

The Kalman Filter is a widely used algorithm for estimating and predicting system states amidst uncertainty, essential for applications like target tracking and navigation. Despite its simplicity, existing resources often require extensive mathematical knowledge and lack practical examples. In 2017, the author developed an online tutorial with intuitive explanations and numerical examples on both univariate and multivariate Kalman Filters to make the subject more accessible. Over time, requests for advanced topics led the author to create a book that builds on the tutorial material, covering non

Published: 2025-01-18 | Origin: Hacker News

The content describes a playful extension for Visual Studio Code that adds cute pixelated pets, such as a cat, dog, and snake, to enhance productivity. Users can install the extension from the VS Code marketplace or through specific commands in the editor. After installation, users can activate a pet coding session to start interacting with the pets. The document encourages user feedback and contributions, including translation assistance. It acknowledges various contributors for the design of the pet animations and assets. For more details, users are directed to

Published: 2025-01-18 | Origin: Hacker News

isd is a terminal-based user interface (TUI) designed to simplify the management of systemd units. It features fuzzy search for units, auto-refreshing previews, smart sudo handling, and a customizable interface suitable for both power-users and newcomers. The tool aims to make interacting with systemd easier by consolidating relevant information and commands. Users who primarily utilize the command `systemctl status <unit>` can benefit from isd's auto-refresh feature. isd can be installed in three ways: 1.

Published: 2025-01-18 | Origin: /r/programming

The author celebrates the milestone of selling 800 copies of their book "Master Software Architecture," reflecting on their journey through self-publishing. They plan to address key questions, such as the book's earnings, reasons for choosing self-publishing, writing process, initial expectations, pricing strategies, and insights on the pros and cons encountered along the way. The story begins in 2012 when the author started their career in programming, emphasizing their growth through various roles and experiences. Throughout the years, they transitioned

Published: 2025-01-18 | Origin: /r/programming

The document discusses the feedback process and emphasizes the importance of user input. It introduces libchata, the main library for Chata, which is currently a work in progress but includes the fully operational Chatassembler—a fast and efficient assembler for RISC-V. Chatassembler can handle a variety of instruction sets and is designed to be simple to use, requiring only one function with one parameter. It operates independently from GCC and LLVM, boasting a testsuite of over 500 tests for supported features. Although it

Published: 2025-01-18 | Origin: /r/programming

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Published: 2025-01-18 | Origin: /r/programming

The author describes a recurring issue faced during production releases in their company’s Frontend React Application and backend services. They often struggled to compile release details, which required checking JIRA tickets and logging relevant commit information—a process that took approximately 30 minutes. To alleviate the burdensome task of organizing and communicating release notes, the author suggests utilizing GitHub Actions. This tool automates the creation of a Draft Release, streamlining the deployment process to production with just a button click, and sends notifications via Slack

Published: 2025-01-18 | Origin: Hacker News

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