Published: 2025-08-11 | Origin: /r/programming

The author reflects on the complexities of understanding and intercepting Russian aerial attacks on Ukraine, particularly the challenges posed by various drones and missiles traveling at different speeds and altitudes. To bridge the gap between theoretical maps and real-world dynamics, the author developed a simulation tool called airdefense.dev. This tool employs spherical geometry, specifically the Haversine formula, for accurate calculations over long distances. The simulation runs at a fixed frame rate, avoiding overshooting bugs by capping movement distances per frame. The

Published: 2025-08-11 | Origin: /r/programming

Stackademic is an educational platform aimed at providing free coding education to programmers, developers, coders, and engineers. The content discusses the use of Git, specifically the concept of "rebase," which helps to update a branch with the latest changes from the main branch. Rebase effectively moves your commits to start from the most recent version of another branch, allowing you to integrate new changes easily while developing features or fixing bugs.

Published: 2025-08-11 | Origin: /r/programming

The content describes a tutorial on program verification in Agda, specifically focusing on the binary search algorithm. The discussion is set in a medieval college room, led by a tutor who aims to clarify misconceptions about binary search being solely about searching ordered tables. A student, Harry, references a common understanding of the algorithm, which involves searching through a sorted sequence of keys to find a specific key by making comparisons. The tutor outlines the process of binary search, explaining that it operates in logarithmic time through a systematic

Published: 2025-08-11 | Origin: Hacker News

The author, while profiling Shadesmar, discovered that large binary unserialized messages (over 512kB) spend a significant amount of execution time on memory copying using `memcpy`. In an attempt to improve the performance of memory copies, the author explored the `__memmove_avx_unaligned_erms` function, which uses AVX instructions to copy 32 bytes at a time, thereby enhancing efficiency. The distinction between `memcpy` and `memmove` is highlighted:

Published: 2025-08-11 | Origin: Hacker News

The provided text appears to be a fragment of a PDF file, containing raw binary data that doesn't convey any coherent information or meaningful content. The snippet includes special characters, symbols, and encoding that is typical of file headers rather than human-readable text. As a result, there is no summary or content to distill from this text. If you have a specific document or topic in mind, please share more details or a different section.

Published: 2025-08-11 | Origin: Hacker News

The provided content appears to be a portion of a PDF file encoded in a binary format. It begins with the header for a PDF file (specifically version 1.3) and contains a compressed data stream. The actual content is not directly readable as text because it is encoded in a manner suitable for processing by PDF readers. To summarize it meaningfully, one would need to interpret the binary data as a whole PDF document, which may contain text, images, or other graphical elements. Without additional

Published: 2025-08-11 | Origin: Hacker News

The author initially declined to let the dealer sign them up for BlueLink, intending to manage the signup independently later. They recognized that the vehicle still had a telematics unit capable of making cellular connections, prompting them to seek a way to disable this feature. One potential solution considered was to install an oscillator to produce a loud noise, thwarting any attempts to eavesdrop through the car's microphone. The author utilized non-marring plastic pry tools to assist in the process. Ultimately, after disabling cellular

Published: 2025-08-11 | Origin: /r/programming

The content emphasizes the importance of user feedback and indicates that all input is carefully considered. It references documentation for additional qualifiers and describes the VectorDB system's layered architecture, which has distinct responsibilities and interfaces for communication. Additionally, it mentions the use of a custom Reader-Writer lock implementation and provides information about the system's performance in terms of average and worst-case scenarios for KD-Tree operations. There are also references to errors encountered while loading the page, suggesting a need to refresh.

Published: 2025-08-11 | Origin: Hacker News

The content discusses the web browser Nyxt, which is designed to cater to developers with a keyboard-driven and customizable experience. Created by John Mercouris in 2017, Nyxt is not an Emacs package but a standalone browser written in Common Lisp and licensed under the BSD three-clause license. Its development prioritizes Linux and encourages user freedom through extensive customization options. The project is sponsored by Atlas, a business focusing on Common Lisp. The creator chose to build Nyxt as a separate entity

Published: 2025-08-11 | Origin: Hacker News

The linked content discusses a simulator for the Sinclaude, a retro computing platform. Similar to a previous project for the Apple II that involved compiling Merlin assembly into an emulator, the Sinclaude simulator allows users to run and interact with software from that era. Additionally, the mention of the "Z-80 Reference Guide" highlights its significant impact on the author's life, suggesting it played a crucial role in their journey into computing.

Published: 2025-08-10 | Origin: Hacker News

The author has made progress in a tutorial about closure conversion, initially thought to involve lambda lifting. They have rewritten the implementation in Python, reducing the code from 1200 lines in C to just over 300 lines in Python, including tests. However, the Python version lacks an S-expression reader and uses text assembly instead of instruction encoding. The process of conversion involves recognizing variable bindings from "let" and "lambda" expressions using a LambdaConverter class. The tutorial focuses on managing variable metadata rather than

Published: 2025-08-10 | Origin: /r/ruby

The content discusses a VCAL/iCalendar viewer designed for the terminal and the MUTT email client, which offers various output formats. Users are encouraged to add a specific line to their .mailcap file to enable automatic display of calendar invites via calview. The documentation contains details about available qualifiers. In case of issues, users are invited to submit feedback or open issues in the repository, and contributions via pull requests are welcome. The tool is released into the public domain under the Unlicense. There are

Published: 2025-08-10 | Origin: /r/programming

The author discusses the syntax of the Zig programming language, noting its similarities to Rust but highlighting how it improves upon Rust's syntax through simpler semantics and thoughtful syntactical choices. Zig simplifies the handling of integer literals by using a single type, `comptime_int`, which eliminates the need for suffixes and allows for implicit type coercion during assignment. This approach contrasts with the typical use of various integer types in statically-typed languages. Additionally, the author praises Zig's handling of raw or multiline strings

Published: 2025-08-10 | Origin: /r/ruby

The content appears to be a corrupted or non-readable binary file rather than a coherent text to summarize. It contains a series of characters, symbols, and likely represents image or encoded data rather than any written material that can be summarized. If you have a specific request or a different text, please provide it!

Published: 2025-08-10 | Origin: /r/programming

The content discusses the intricacies of merge commits in Git, highlighting how they can include changes not visible in the standard commit log. This can lead to "sneaky" changes being introduced without detection, as merge commits can resolve conflicts and add arbitrary updates. The text warns against abusing this feature but acknowledges that it can be misused. It presents a hypothetical supply chain attack where an attacker, Eve, convinces a user, Alice, to pull changes that may contain hidden backdoors. Alice,

Published: 2025-08-10 | Origin: Hacker News

The content discusses Bolt, a high-performance, lightweight, and statically typed embedded programming language designed for real-time applications, implemented in C. It relies on the C standard library and provides standard library modules, which can be disabled if needed. Bolt allows easy configuration regarding memory management and includes additional capabilities through its integration with the library picomatch for regex parsing. The bolt-cli program serves as a concise example of how to embed Bolt in applications, with further details available in the embedding guide. The

Published: 2025-08-10 | Origin: /r/programming

The excerpt discusses the challenges and complexities involved in load balancing requests through a reverse proxy, which is crucial for managing incoming traffic across multiple upstream servers. While simple methods like round-robin help distribute requests evenly, they often fail under larger, more complex systems due to the diversity in request types (e.g., heavy uploads vs. light reads), leading to inefficiencies such as server overloads and underutilization. It also highlights the necessity for "stickiness" for specific requests and the importance of

Published: 2025-08-10 | Origin: /r/programming

The content is directed at engineering managers and tech companies, arguing that prevalent hiring practices are ineffective and wasteful. The author shares personal experiences, such as an extensive 9-round interview process and notable cases where talented programmers were misjudged. The post critiques how companies often chase the latest programming trends and struggle to distinguish between real talent and temporary solutions like LLMs. It highlights the frustrations of candidates, including long ghosting periods after interviews. The author aims to provide insight into why hiring is challenging

Published: 2025-08-10 | Origin: Hacker News

Håkon Robbestad Gylterud introduces a two-player game called the anti-pattern game, inspired by a course on modal logic. Players alternate placing black and white pebbles on a line, aiming to avoid creating a pattern—a sequence of pebbles repeated three times. A player loses if they create such a pattern with their move, while the objective is to force the opponent into a losing position. Gylterud illustrates this with an example where player two loses due to creating

Published: 2025-08-10 | Origin: Hacker News

OpenAI has released two new open-weight large language models (LLMs) called gpt-oss-120b and gpt-oss-20b, marking their first open-weight models since GPT-2 in 2019. These models are designed to run locally due to optimizations like MXFP4, allowing them to fit on single GPUs. The article provides comparisons of these models with GPT-2, discusses trade-offs between model width and depth, and examines features such as attention bias.