DeepSeek v4

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The DeepSeek API uses OpenAI/Anthropic compatible format and can be accessed with an API key. Model names will be deprecated on July 24, 2026.

Why I Write (1946)

The author's early life influenced his writing, with a desire to escape loneliness and create a private world through words. He developed a habit of making up stories and describing scenes, which continued into adulthood.

GPT-5.5

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OpenAI releases GPT-5.5, a more intelligent and efficient model that can handle complex tasks. GPT-5.5 excels at coding, research, and everyday work on a computer, providing better results with fewer tokens.

An update on recent Claude Code quality reports

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Claude's responses worsened for some users due to three separate changes affecting Claude Code, the Claude Agent SDK, and Claude Cowork. We've fixed the issues and will implement changes to prevent similar problems in the future.

A quick look at Mythos run on Firefox: too much hype?

https://xark.es/b/mythos-firefox-150/opengraph-image-rb81ct?232ca9fb60d25cf5
The public evidence does not support the strongest version of the claim that Mythos has suddenly erased the usual offensive edge in vulnerability research, and its value is not clear compared to other LLMs. The tool is useful for defensive security work, especially at scale, but its value is not justified by the strongest claims people want to make from it.

Bitwarden CLI compromised in ongoing Checkmarx supply chain campaign

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Bitwarden CLI 2026.4.0 was compromised through a GitHub Action in its CI/CD pipeline as part of the Checkmarx supply chain campaign. Users are advised to review CI logs and rotate exposed secrets.

Ubuntu 26.04 LTS Released

Ubuntu 26.04 LTS improves security, performance, and usability with new features like TPM-backed encryption and Livepatch support. Maintenance updates will be provided for 5 years for main Ubuntu flavors and 3 years for others.

Habitual coffee intake shapes the microbiome, modifies physiology and cognition

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Coffee consumption influences gut function, stress, cognition, and the microbiome, with mechanisms poorly understood. This study found coffee drinkers had altered gut microbiome composition and function, and coffee intake was linked to improved cognitive performance and reduced impulsivity.

US special forces soldier arrested after allegedly winning $400k on Maduro raid

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US soldier Master Sgt Gannon Ken Van Dyke was arrested and charged with stealing and misusing classified information after allegedly betting $32,000 on Venezuelan President Maduro's capture and winning $400,000. He faces five criminal charges and a related civil complaint from the Commodity Futures Trading Commission.

Show HN: Tolaria – Open-source macOS app to manage Markdown knowledge bases

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Tolaria is a Mac app for managing markdown knowledge bases with features like offline use, open source, and keyboard-first design. It's built for power-users with a focus on flexibility and portability.

Meta tells staff it will cut 10% of jobs

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MeshCore development team splits over trademark dispute and AI-generated code

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A team member, Andy Kirby, secretly used AI-generated code to take over the MeshCore ecosystem, sparking a dispute over ownership and control. The core team has now separated from Andy and will continue to develop and release MeshCore firmware and app updates on their official website, meshcore.io.

TorchTPU: Running PyTorch Natively on TPUs at Google Scale

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Google's Tensor Processing Units (TPUs) require a software stack that meets demands for performance, hardware portability, and reliability, leading to the development of TorchTPU, a PyTorch integration for native and efficient TPU usage. TorchTPU achieves this through its "Eager First" philosophy, Fused Eager mode, and native support for custom kernels, ensuring a seamless and ...

Using the internet like it's 1999

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The author believes the internet has become a controlled echochamber where people are fed algorithmically generated content, and suggests using older technologies like RSS feeds, IRC, and email to reclaim agency over attention and information.

Your hex editor should color-code bytes

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The user discusses the benefits of using color in hex dumps to make it easier to notice patterns and details in the data. They propose a custom hex editor called hexapoda and suggest that more tools should include color-coded bytes.

UK Biobank health data keeps ending up on GitHub

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UK Biobank has used copyright takedown notices to remove health data from GitHub, targeting 110 requests since July 2025. The notices mostly target Jupyter or R notebooks, genetic and genomic data files, and tabular datasets containing participant health records.

Show HN: Agent Vault – Open-source credential proxy and vault for agents

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Agent Vault is an open-source credential broker that eliminates credential exfiltration risk by injecting credentials at the network layer. It works with any agent, including custom Python/TypeScript agents and coding agents like Claude Code.

My phone replaced a brass plug

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The author spent six months developing a computer vision model to automate scoring of shooting targets, using a combination of OpenCV and YOLOv8, and eventually created an offline-first app to track shooting performance.

Incident with multple GitHub services

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GitHub's Status Page - Incident with multiple GitHub services.

A programmable watch you can actually wear

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The LILYGO T-Watch Ultra is a DIY smartwatch with ESP32-S3, IP65-rated case, and various features like AI acceleration, Wi-Fi, Bluetooth, and LoRa. It's suitable for complex applications and has a long runtime due to its 1,100mAh battery and improved display.

Show HN: Honker – Postgres NOTIFY/LISTEN Semantics for SQLite

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Honker is a SQLite extension and language bindings that add durable pub/sub, task queue, and event streams to SQLite without client polling or a daemon/broker, allowing atomic business writes and side-effect enqueues. It achieves single-digit millisecond reaction time and supports various languages including Python, Node, Rust, Go, Ruby, Bun, and Elixir.

Astronomers find the edge of the Milky Way

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A team of astronomers found that the Milky Way's star-forming disk ends at 35,000-40,000 light-years from its center. Stars beyond this point are older and likely migrated outward due to the galaxy's spiral waves.

Used La Marzocco machines are coveted by cafe owners and collectors

Kent Bakke discovered a two-boiler espresso machine in Italy, leading to a deal with La Marzocco and eventually influencing Starbucks. La Marzocco machines, known for their retro design, now sit in 15% of US coffee shops despite their limited presence.

Alberta startup sells no-tech tractors for half price

Ursa Ag, a small Canadian manufacturer, is selling tractors with remanufactured 1990s diesel engines and no electronics for half the price of comparable machines. The company's simple, mechanical design is appealing to farmers who want to avoid modern complexity and high costs.

French government agency confirms breach as hacker offers to sell data

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France's ANTS agency disclosed a data breach after a threat actor claimed stealing citizen data, potentially exposing 19 million records. The agency advises users to be vigilant about suspicious messages and has notified authorities, but no action is required.

I spent years trying to make CSS states predictable

The author describes a problem with CSS where component state is managed through overlap, leading to complexity and potential bugs. They created a system called Tasty that allows component state to be expressed declaratively, making it easier to extend or change components without reopening the state-resolution problem.

Writing a C Compiler, in Zig (2025)

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This is a series of articles I wrote while writing paella, following Nora Sandler's Writing a C Compiler. It was both an exercise to learn Zig and a way to waste time instead of looking for work, as I am currently "between jobs". I did not edit them as I collect them here outside of fixing some broken links.

I am building a cloud

The author is building exe.dev, a cloud platform that addresses the limitations of current cloud services, allowing users to run VMs on their own resources and manage them easily. The goal is to create a cloud that is more flexible and user-friendly, with local NVMe storage, global regions, and a simple, intuitive interface.

DeepSeek-V4: Towards Highly Efficient Million-Token Context Intelligence

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We present DeepSeek-V4 series with two MoE models, DeepSeek-V4-Pro and DeepSeek-V4-Flash, supporting 1M-token context length. They achieve improved efficiency and performance through hybrid attention and manifold-constrained hyper-connections.

Advanced Packaging Limits Come into Focus

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Packaging is now a performance variable, with warpage and mechanical issues complicating continued scaling. Advanced packages are no longer simple structures, but mechanically asymmetrical systems with different layers expanding, softening, and storing stress differently.