Project Valhalla, Explained: How a Decade of Work Arrives in JDK 28

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Oracle engineer Lois Foltan confirmed that JEP 401: Value Classes and Objects will be integrated into the main OpenJDK repository and target JDK 28. The feature allows programmers to declare value classes and objects that can be optimized for performance, enabling density and locality in memory, and is currently in preview mode.

DuckDB Internals: Why Is DuckDB Fast? (Part 1)

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DuckDB is a fast in-process analytical SQL database that has gained widespread adoption due to its ease of use and performance. It can read data from various file formats like Parquet, CSV, and JSON, and execute queries directly on these files without the need for a server or cluster.

So You Want to Define a Well-Known URI

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Well-known URIs work best when clients need to discover site-wide information, such as access policies or site metadata. They should be used for specific problems, not as a URL shortener or to confer legitimacy.

To study how chips work, MIT researchers built their own operating system

https://news.mit.edu/sites/default/files/images/202605/mit-csail-fractal.jpg
Researchers at MIT developed Fractal, a new kernel that gives a cleaner view of processor behavior, and has already found previously unknown behavior in Apple's M1. Fractal treats hardware as the object of study, allowing researchers to run experiments with minimal background noise and gain a deeper understanding of processor behavior.

Zen and the Art of Machine Learning Research

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To become a successful researcher, you need to combine reading and building skills, and be willing to put in the time and effort required. A good researcher stays open-minded, refuses to let ego cloud their judgement, and is willing to learn from failure.

Gribouille 0.3.0: A Grammar of Graphics for Typst

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Gribouille 0.3.0 adds guide control for hiding axis ticks and legends, and introduces a theme parameter for styling composition chrome. It also includes fixes for legend layout, stacking area charts, and other features.

I found 10k GitHub repositories distributing Trojan malware

The user found 10,000 GitHub repositories distributing Trojan malware by analyzing commit patterns and using a script to filter repositories. The script found 10,000 repositories that matched the pattern of being updated every few hours with a link to a zip archive in the readme file, but the user believes there should be many more due to GitHub's large repository count.

Zero-Touch OAuth for MCP

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The Enterprise-Managed Authorization extension is now stable, allowing organizations to centrally manage authorization for MCP servers and end-users to access all connected servers through a single login. This extension addresses a major pain point in enterprise environments by providing a zero-touch setup and centralized policy control.

Fable Converted Pylint to Rust

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prylint is a Rust reimplementation of pylint that produces identical output, 15-2300× faster than pylint. It is a bug-for-bug port of pylint, verified against 52 production codebases.

How Japan's railways stayed one while splitting apart

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The JR mark was designed by Yōji Yamamoto in 1987 for Japan's railway companies, with a simple yet effective design that has remained unchanged for nearly 40 years. Yamamoto's design philosophy emphasized truth, reality, and honesty, resulting in a mark that has become synonymous with Japan's railways.

The AirPods Effect

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The author noticed a significant increase in people wearing AirPods during a trip to the US, feeling isolated and disconnected from others. Regular human contact is essential for our well-being, but earbuds can hinder this by creating a "Do Not Disturb" sign and reducing opportunities for casual interactions.

The Raku Foundation is born

The Raku Foundation was registered in the Netherlands on May 1, 2026, to support the Raku language and community. It will allow Raku to have its own independent representation and fundraising, separate from the Perl and Raku Foundation.

Datasette Apps: Host custom HTML applications inside Datasette

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Datasette Apps are self-contained HTML+JavaScript applications that run in a sandboxed iframe, allowing users to build custom interfaces and visualizations for their data. The plugin uses a combination of sandboxing and Content Security Policy to ensure secure execution of untrusted code.

Ubiquiti: Enterprise NAS, Built on ZFS

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ENAS offers a private, local storage platform with performance, scalability, and simplicity, eliminating costly licensing and proprietary hardware. It integrates with UniFi for centralized management, secure access, and multi-site backup orchestration without recurring software costs.

Building a robotics research setup that lives next to my desk

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A researcher is conducting independent robotic manipulation research on a tabletop setup with a single industrial-grade robot arm, two cameras, and teleoperation, aiming to test the hypothesis that a single person can achieve meaningful results with a budget of €10,000. The setup includes a UFACTORY xArm Lite 6 robot arm, Intel RealSense D405 wrist camera, and Logitech C920 webcam, with a ...

CS 6120: Advanced Compilers: The Self-Guided Online Course (2020)

CS 6120 is a PhD-level Cornell CS course on programming language implementation covering universal compilers and research topics. The course involves reading papers and open-source hacking tasks using LLVM and an educational IR.

Ice water drowning survival of young patient (2025)

A young boy survived 147-minute submersion in ice water with a body temperature of 7 °C. He was resuscitated with ECMO and made a full recovery.

Ten years of ClickHouse in open source

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ClickHouse was released in open source on Jun 15 2016, ten years ago. Since then, it became the most popular open source analytical database with more than 2000 contributors. Level 0: The minimum level is making the code open to the public for reading, but nothing more. This is the case of archival and museum releases, such as Doom or MS-DOS. Level 1: The next level is when the software is ...

Show HN: Talos – Open-source WASM interpreter for Lean

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Talos is a Lean 4 WebAssembly interpreter that enforces rules with a single codebase for evaluation and proof. It aims for full Wasm coverage with a focus on non-optimized source code semantics.

.gitignore Isn't the only way to ignore files in Git

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Git has three levels of file ignoring: .gitignore, .git/info/exclude, and ~/.config/git/ignore. These files allow ignoring files at repository, per-repo, and machine levels respectively.

Hospitals and universities repurposing drugs at lower cost

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Universities and hospitals are conducting late-stage clinical trials with lower costs, repurposing existing drugs for new uses. This "hidden" research system offers affordable treatments with huge potential, operating outside of the patent system.

Flexport (YC W14) Is Hiring in Indonesia, India, and Thailand

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Flexport aims to revolutionize global logistics with AI, making trade easier and driving real-world impact. The company seeks talented individuals worldwide to join its mission-driven team and help build the future of automated global logistics.

Cell-based architecture for resilient payment systems

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American Express uses a cell-based architecture to ensure high availability and low latency in its payments ecosystem. This architecture isolates failures, maintains low-latency processing, and scales capacity without expanding the failure domain.
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A customer club's marketing arrangement was found to be unlawful due to forced consent. The company was fined NOK 20 million for violating GDPR rules on consent, transparency, and data processing.

The Korean telecom giant at the center of Anthropic's Mythos controversy

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The Trump administration imposed export controls on Anthropic's AI technology due to concerns over SK Telecom's ties to China. Anthropic revoked access to its models for foreign nationals after the White House ordered it to do so.

W Social, public institutions and the theater of European digital sovereignty

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The user is fascinated by W Social, a microblogging platform that claims to be Europe's alternative to X, but has discrepancies between its public image and reality. The European Commission's migration of its ATproto accounts to W Social is concerning due to W Social's lack of transparency and potential reliance on Bluesky's infrastructure.

Many Let's Encrypt renewals had errors today

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Let's Encrypt's production API is experiencing degraded performance due to networking issues. We're working to resolve the issue and stabilize API performance.

Show HN: Are You in the Weights?

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The weights are the billions of numbers forming an AI's brain. Type a name and see how strongly the leading AI models recognize it. Are you in the weights?

If your product is Great, it doesn't need to be Good (2010)

The author argues that successful products focus on a few key features, ignoring others, to create a simple and compelling experience. This approach is seen in products like the original iPod and Gmail.

Modos Color Monitor Pushes E-Paper Displays Further

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Modos Flow is a 13.3-inch color e-paper monitor with higher resolution and touch input, improving on the Paper Monitor Dev Kit. The Flow's crowdfunding campaign is live on Crowd Supply, with cofounders discussing engineering and lessons learned from their crowdfunding journey.