Published: 2025-10-06 | Origin: Hacker News

This content describes a data-driven digital twin of a Kaleido M1 sample roaster that simulates roaster and bean dynamics. Users can interact with the virtual roaster, which defaults to Ethiopian Guji beans, specific ambient temperature, preheat settings, and drum speed. The demo allows for bean mass adjustments, charging the roaster, and modifications to heater power and fan speed during roasting, all while monitoring real-time temperature curves and rate of rise. The creator offers to make a Digital Twin for

Published: 2025-10-06 | Origin: Hacker News

OpenZL is a new data compression framework that provides lossless compression for structured data, achieving performance comparable to specialized compressors. It does this by utilizing a configurable sequence of transformations to reveal hidden order in the data, allowing for more effective compression. Despite employing different transformation methods for various file types, all OpenZL files can be decompressed using a single universal decompressor. The development of OpenZL is motivated by the limitations of existing frameworks like Zstandard, which, while improving over time,

Published: 2025-10-06 | Origin: /r/programming

The text discusses the criticisms architects face regarding the creation of extensive solution design documents that often become unwieldy and are seldom read. These documents can be excessively long, filled with sections that are either copied from other sources or marked as "not applicable," leading to disengagement from those tasked with completing them. The author advocates for more concise solution designs that prioritize essential information needed by the technical audience responsible for implementation. The key suggestion is to simplify these documents, keeping them lean while allowing for additional details as

Published: 2025-10-06 | Origin: /r/ruby

The content discusses the enduring popularity and benefits of Ruby on Rails (RoR) in web development. Created in 2004, RoR emphasizes elegant design and programming best practices, making it a favored framework for developing scalable and maintainable applications. As of September 2025, RoR continues to power significant websites, including e-commerce and social platforms, due to its development speed and reduced time-to-market compared to frameworks like Node.js and Django. RoR's strengths lie in its extensive ecosystem of

Published: 2025-10-06 | Origin: Hacker News

To deploy advanced AI models locally using an AMD GPU or APU, a capable Windows PC with PyTorch is sufficient. The AMD ROCm platform is now compatible with PyTorch, allowing for efficient AI inference on AMD Radeon RX 7000 and 9000 series GPUs, as well as certain AMD Ryzen AI APUs. Developers can set up and execute Large Language Models (LLMs) without prior experience in deep learning frameworks. For setup, users need Windows 11 and the appropriate PyTorch

Published: 2025-10-06 | Origin: Hacker News

After two years at Dagster managing developer marketing, the author reflects on their insights regarding Developer Relations (DevRel). They note a recent surge in interest in DevRel roles, driven by the challenges of standing out in the competitive AI and LLM landscape. The author emphasizes that simply hiring DevRel isn't a comprehensive solution and suggests a deeper understanding of its purpose is necessary. When they first joined Dagster, the absence of a clear goal for the DevRel team led to confusion about its mission and effectiveness

Published: 2025-10-06 | Origin: /r/programming

Businesses aim to maximize profits by strategically pricing their products. Setting prices too low can result in lost profits, while high prices may exclude potential customers. Therefore, finding an optimal price that balances profitability and demand is essential. Global businesses, in particular, must consider regional pricing, adjusting prices according to each country's purchasing power, taxes, and tariffs to avoid mispricing that can lead to reduced profits. Many online services, including Netflix and Spotify, utilize regional pricing strategies. In the case of Chess.com,

Published: 2025-10-06 | Origin: /r/ruby

The content features several announcements related to developments in the Ruby programming community, including launches, discounts, and events. Highlights include: 1. **Launches**: - **Navigator**: A lightweight web server for multi-tenant applications by Sam Ruby, offering features such as on-demand process management and regional routing. - **DevvMe**: A platform to showcase and connect developers, prelaunched by Gustavo Valenzuela. - **Decoded Rails**: A newsletter launched by Omar

Published: 2025-10-06 | Origin: /r/ruby

The author discusses the often-overlooked `Random` module in the Ruby standard library, describing it as an invaluable tool for web application development, particularly when it comes to creating deterministic and testable environments. Unlike `SecureRandom`, which is tied to the operating system's entropy source and thus non-deterministic, `Random` uses the Mersenne twister algorithm to generate a sequence of pseudorandom numbers based on a seed. This makes `Random` particularly useful for applications that require repeat

Published: 2025-10-06 | Origin: Hacker News

Scribe OCR is a free web application designed for text recognition from images, proofreading OCR data, and creating fully-digitized documents. It operates entirely in the browser, ensuring user privacy as data isn’t sent to remote servers. Users can access the live site at scribeocr.com, and local instances can be run using npm commands. The application focuses on efficient proofreading, helping users enhance OCR accuracy from 98% to 100% by allowing easy error correction directly on the source images. Documentation for

Published: 2025-10-06 | Origin: /r/programming

The author discusses the recent implementation of a powerful control mechanism in their programming language, Lone. This development allows for future features such as exception handling and generators. The author reflects on their journey, detailing the complex growth of Lone with various data types and collections, and acknowledges a past avoidance of addressing iteration, despite having implemented some iteration primitives inspired by Ruby. The process involved leveraging the C compiler to handle iteration, but this approach highlighted a significant limitation in Lone's ability to control program flow, relying solely on

Published: 2025-10-06 | Origin: Hacker News

The author developed a script called "usbi" to check USB connections on macOS after finding that some USB cables are slow and not suitable for charging or data transfer. The script uses macOS's `system_profiler SPUSBHostDataType` command to generate cleaner, more manageable output. Initially written in bash with the help of AI, the script was difficult to maintain, leading the author to rewrite it in Go for better structure and ease of modification. This process took only ten minutes thanks to

Published: 2025-10-06 | Origin: Hacker News

The author reflects on the rapid advancements in large language models (LLMs) and their perceived complexity, emphasizing a desire to bridge the knowledge gap regarding the foundational attention mechanism in neural networks. They explored the seminal 2017 paper "Attention is All You Need" by Google Brain, which introduced the transformer architecture that revolutionized neural networks. This exploration led to a broader understanding of themes related to LLMs, including neural network generalization and the effectiveness of simple, scalable methods over more complex approaches.

Published: 2025-10-06 | Origin: /r/programming

Reactive programming can provide significant advantages for Python applications, such as reducing bugs, simplifying complexity, and enhancing maintainability. Despite these benefits, many Python developers shy away from using it, primarily due to misunderstandings about existing tools like RxPY, which is more suited for event streams than state management. This has led to cognitive overload when trying to manage state within applications. Reaktiv, a new tool for Python, simplifies the implementation of state-synchronous reactive programming—allowing automatic updates of derived values when

Published: 2025-10-06 | Origin: /r/ruby

In this issue of Hotwire Weekly, readers get a concise roundup of key topics: 1. **Turbo Streams**: Sid Krishnan discusses how Turbo detects and applies updates using `<turbo-stream>` tags. 2. **Updating UI with Turbo Frames**: Radan Skorić offers a Rails technique to update UI elements outside a Turbo Frame during a frame update with a helper method. 3. **Detecting Safari and iOS Versions**: Evgeniy Valyaev shares methods for

Published: 2025-10-06 | Origin: /r/ruby

On October 5, 2025, the team behind rubygems.org announced the launch of a new gem server for the Ruby community called gem.coop. The governance policies for the new server are being developed with Mike McQuaid from Homebrew and will be released shortly. Current RubyGems and Bundler versions are compatible with the new server, allowing Ruby developers to start using it immediately. The team has plans to introduce new features and functionality soon.

Published: 2025-10-06 | Origin: /r/ruby

The former RubyGems.org team has launched a new gem server for the Ruby community at https://gem.coop. Ruby developers can now switch their primary source to this new server, which is designed to be simple and secure. The server is fully compatible with the current versions of RubyGems and Bundler, with plans to enhance security and packaging speed. The term “Co-op” signifies a cooperative model similar to that of REI or credit unions, promoting sustainable and fair Ruby packaging. While

Published: 2025-10-06 | Origin: /r/ruby

Gem.coop is a new community-driven server for gems in the Ruby ecosystem, designed for fast and simple hosting while being compatible with Bundler. Developed by former RubyGems.org maintainers, it offers real-time updates for all gems published on RubyGems.org. The project's governance resembles that of Homebrew, with guidance from Mike McQuaid, and is open for contributions from the Ruby community. Users can easily start using gem.coop by modifying their Gemfile. The goal is to provide

Published: 2025-10-06 | Origin: /r/ruby

This blog post is part of a series titled "Hanami for Rails Developers" and focuses on helping Rails developers get started with Hanami without discussing its advantages. It contrasts the MVC structure in Rails with Hanami’s approach, which emphasizes a more distinct separation of concerns through its use of repositories, relations, and structs, leading to easier long-term maintenance. The post begins with how Hanami applications interact with databases, highlighting that, like Rails, Hanami supports database migrations using ROM (the chosen database

Published: 2025-10-06 | Origin: Hacker News

The Internet Archive is hosting a series of events in October to celebrate its work since 1996 in preserving online history through digital libraries, aiming to maintain access to websites for future generations. Events include a musical celebration featuring the Del Sol Quartet, which will honor the achievement of archiving one trillion web pages. Additionally, Sir Tim Berners-Lee and Brewster Kahle will engage in a discussion on the internet's evolution and the importance of the Internet Archive. A virtual Library Leaders Forum will also discuss