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ooh.directory is an online directory that provides listings and information about out-of-home (OOH) advertising opportunities, including billboards, digital displays, and other outdoor media formats across different geographic regions.

The article discusses how social media platforms have been accused of helping the Department of Homeland Security (DHS) censor critics of U.S. Immigration and Customs Enforcement (ICE), with advocates saying platforms have 'bent over backward' to assist the government in removing such content.

News publishers are restricting access to the Internet Archive due to concerns about AI systems scraping content for use in language models. This move aims to maintain control over how their content is used and prevent unauthorized access by AI models.

I made a chess engine today, and made it fit within 2KB. I used a variant of MinMax called Negamax, with alpha beta pruning. For the board representation I have used a 120-cell "mailbox". I managed to squeeze in checkmate/stalemate in there, after trimming out some edge cases.

I am a great fan of demoscene (computer art subculture) since middle school, and hence it was a ritual i had to perform.

For estimating the Elo, I measured 240 automated games against Stockfish Elo levels (1320 to 1600) under fixed depth-5 and some constrained rules, using equal color distribution.

Then converted pooled win/draw/loss scores to Elo through some standard logistic formula with binomial 95% confidence interval.

The article describes a user script that hides YouTube Shorts from the user interface, allowing for a cleaner and more focused browsing experience on the platform.

The article discusses the creation of an open-source YouTube media storage project, which aims to provide a platform for hosting and managing personal YouTube media files, allowing users to easily upload, manage, and stream their content.

The article warns about fake 7-Zip downloads that install malware, turning home PCs into proxy nodes that can be used for malicious activities. It advises users to only download software from the official website and be cautious of suspicious links or downloads.

The U.S. Department of Homeland Security has reportedly issued hundreds of subpoenas to identify and potentially prosecute individuals who have criticized the Immigration and Customs Enforcement (ICE) agency online, raising concerns about free speech and government overreach.

The article discusses the development of Gemini 3, the third mission in NASA's Gemini program, and the challenges faced by the astronauts and the mission control team in overcoming technical issues and completing the planned objectives.

Hey HN! I was a long-time Arc browser user and loved how its sidebar organized tabs and bookmarks into workspaces. I wanted to switch to other browsers without losing that workflow. So I built Arcmark, it's a macOS bookmark manager (Swift/AppKit) that floats as a sidebar attached to any browser window. It uses macOS accessibility API to follow the browser window around.

You get workspace-based links/bookmarks organization with nested folders, drag-and-drop reordering, and custom workspace colors. For the most part I tried replicating Arc's sidebar UX as close as possible.

1. Local-first: all data lives in a single JSON file ( ~/Library/Application Support/Arcmark/data.json). No accounts, no cloud sync.

2. Works with any browser: Chrome, Safari, Brave, Arc, etc. Or use it standalone as a bookmark manager with a regular window.

3. Import pinned tab and spaces from Arc: it parses Arc's StorableSidebar.json to recreate the exact workspace/folder structure.

4. Built with swift-bundler rather than Xcode.

There's a demo video in the README showing the sidebar attachment in action. The DMG is available on the releases page (macOS 13+), or you can build from source.

This is v0.1.0 so it's a very early version. Would appreciate any feedback or thoughts

GitHub: https://github.com/Geek-1001/arcmark

The article discusses 'Ack', a universal cross-platform programming language that aims to be a replacement for C and C++. It provides a thorough overview of the language's features, design goals, and development progress.

A study found that audiophiles could not distinguish audio signals sent through copper wire, a banana, or wet mud, suggesting that the perceived quality differences in audio equipment may be largely subjective and not based on measurable differences in sound quality.

The article discusses the growing number of U.S. students taking gap years before starting college, with many citing mental health and financial concerns as reasons for the trend. It explores the potential benefits and drawbacks of gap years, as well as the impact on college enrollment and graduation rates.

Dune2JS is an open-source JavaScript-based recreation of the classic real-time strategy game Dune II, aiming to provide a faithful adaptation of the original game mechanics and gameplay within a modern web-based environment.

This article discusses agent-oriented API design patterns, drawing lessons from the Moltbook protocol. It explores how agent-based architectures can be applied to API design, highlighting key principles and patterns that can improve scalability, flexibility, and resilience in API-driven systems.

As men age, they can lose their Y chromosome, which was previously thought to be inconsequential. However, recent research suggests that the loss of the Y chromosome may be associated with an increased risk of certain health conditions, such as cancer and Alzheimer's disease.

Hi HN,

I am a 75-year-old former fishmonger from Japan. Currently, I work at the compensation desk for the Fukushima nuclear disaster (TEPCO). Witnessing deep social divisions and the limitations of bureaucracy firsthand, I realized we need a new way for people to express their will without being "disposable."

To address this, I’ve designed the *Virtual Protest Protocol (VPP)*. It’s an OSS framework for large-scale, 2D avatar-based digital demonstrations. I recently shared this with the *Open Technology Fund (OTF)* and received an encouraging "This is great" response. Now, I am looking for the HN community's expertise to turn this spec into a reality.

*The Concept:* * *Beyond Yes/No (Avoiding Polarization):* Introducing an *"Observe"* status. Modern social media forces people into binary "For or Against" camps, deepening social division. VPP allows the silent majority to participate by simply "being there," visualizing the scale of public concern without forcing a polarized stance. * *Cell-Based Scaling:* To handle thousands of participants, avatars are managed in "cells" of 50 units. New cells instantiate as the crowd grows, ensuring compatibility with low-spec devices and low-bandwidth environments. * *Privacy by Design:* We only collect anonymous attributes (age/gender/region). All event-specific data is wiped immediately after the demonstration. * *OIN Membership:* We have joined the [Open Invention Network (OIN)](https://openinventionnetwork.com) to ensure this remains a patent-free global public good.

*Why I’m doing this:* At 75, I belong to the generation that will soon "retire" from society. I feel a deep sense of responsibility to leave a better infrastructure for the next generation?one that isn't burdened by the financial and social "debt" we've accumulated. I am not looking for personal gain; I want this to be a sustainable, global infrastructure.

*GitHub:* https://github.com/voice-of-japan/Virtual-Protest-Protocol/b... *Project Site:* https://voice-of-japan.net

We are looking for collaborators with expertise in: * Scalable Web Architecture (Node.js, Go, etc.) * High-performance Canvas/WebGL rendering * AI-based real-time moderation (LLM integration)

BetterCapture is a screen capture and annotation tool that allows users to easily take, edit, and share screenshots and recordings. It offers a range of features, including customizable hotkeys, built-in image editing tools, and the ability to record both the screen and webcam simultaneously.

The article explores the unethical practices and controversies surrounding the scientific work of Jeffrey Epstein, a financier with deep ties to the academic and scientific community. It highlights how Epstein's influence and funding have been used to support questionable research and undermine scientific integrity.

SheetKit is a new open-source project that aims to make it easier to work with spreadsheet data in applications. It provides a set of tools and libraries that allow developers to easily integrate spreadsheet functionality into their software.