Cowork: Claude Code for the rest of your work

https://cdn.prod.website-files.com/68a44d4040f98a4adf2207b6/6903d22a44550f2799b41ba4_c4a48972044d45df475f1dd84df3b74d221b6580-1000x1000.svg
Claude's Cowork allows users to give Claude access to folders and complete tasks with more agency than regular conversations. It's designed for non-coding tasks and can be made more powerful with existing connectors and skills.

FOSS in times of war, scarcity and (adversarial) AI [video]

https://fosdem.org/2026/assets/style/logo-gear-7204a6874eb0128932db10ff4030910401ac06f4e907f8b4a40da24ba592b252.png
Geopolitical conflicts and AI-generated code threaten the global community working on Free and Open Source software, potentially disrupting its trustworthiness and democratic values. The FOSS community must balance innovation with caution, combining AI with human skill and traditional quality assurance methods to preserve its integrity and defend against malicious code.

Text-Based Web Browsers

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Text-based browsers like ELinks, Lynx, and w3m struggle with recent HTML features, often ignoring or misinterpreting them. They mainly display plain HTML without CSS or JS, making interactive features like disclosure widgets and dialogs unusable.

Show HN: An iOS budget app I've been maintaining since 2011

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Primoco is a budgeting platform offering a web app and mobile apps for various devices, helping users manage their finances. It prioritizes data security and ease of use, available for iOS, Android, and macOS with offline capabilities.

U.S. Emissions Jumped in 2025 as Coal Power Rebounded

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TimeCapsuleLLM: LLM trained only on data from 1800-1875

https://raw.githubusercontent.com/haykgrigo3/TimeCapsuleLLM/main/london_1800_1850_v0/timelockllm_sample_output.png
A language model trained on 1800-1875 London data emulates the voice and worldview of the era. It recalls historical events and figures, producing 19th-century language and behavior.

Designing an IPv6-native P2P transport – lessons from building I6P

I6P is a secure, QUIC-based transport substrate for P2P connections, simplifying signaling and cutting out TURN relays. It provides a secure pipe for direct paths, stream multiplexing, and optional transfer pipeline with integrity verification.

Postal Arbitrage

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A person found items under $0.78 with free shipping on Amazon Prime and sent them to friends with a note, creating a fun surprise. This sparked a family group chat with random item exchanges, including a pregnancy test to a grandmother.

Floppy disks turn out to be the greatest TV remote for kids

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The user built a custom remote control for their 3-year-old son that uses a floppy disk to store media content, allowing the child to make independent choices and interact with the TV in a physical and tangible way. The project involved modifying a floppy disk drive, adding an RFID tag, and using microcontrollers to read the disk contents and control the WiFi communication, resulting in a ...

The chess bot on Delta Air Lines will destroy you (2024) [video]

The Cray-1 Computer System (1977) [pdf]

The CRAY-1 Computer System is a large-scale digital computer with vector and scalar processing capabilities. It executes over 80 million floating point operations per second.

Implementing a web server in a single printf() call (2014)

A user implemented a web server in a single printf call, similar to Jeff Dean's feat, using a Linux AMD64 system and gcc 4.8.2. The code exploits format string bugs and overwrites the fini_array section to execute a custom shellcode.

Unauthenticated remote code execution in OpenCode

OpenCode's unauthenticated web server was enabled by default before v1.1.10, allowing code execution with user privileges. It's now disabled by default but can be enabled, exposing endpoints to any client without authentication.

Some ecologists fear their field is losing touch with nature

https://media.nature.com/w767/magazine-assets/d41586-025-04150-w/d41586-025-04150-w_51839810.jpg
Ecologists are increasingly relying on computer-based methods and AI to analyze data from digitized specimens, sensors, and other sources, but some worry this shift is leading to a decline in field experience and intimacy with nature. The use of AI and automation in ecology is creating new opportunities for understanding biodiversity and global change, but also raises concerns about error, ...

Date is out, Temporal is in

https://piccalil.b-cdn.net/api/og-image?slug=date-is-out-and-temporal-is-in/
JavaScript's Date object is flawed and inconsistent, leading to widespread use of third-party libraries. A new Temporal object is being developed to replace Date, offering a more modern and sensible way to handle dates in JavaScript.

Deconstructing the LuaJIT Pseudo Memory Leak

https://blog.openresty.com/header-images/green-ram-stick.jpg
When managing large-scale, high-concurrency OpenResty/LuaJIT services, many seasoned architects have encountered a perplexing and counter-intuitive challenge: while the service’s business logic operates robustly and Lua VM-level garbage collection (GC) data indicates normal operation, operating system monitoring tools consistently show an irreversible, continuous increase in the process’s ...

Fabrice Bellard's TS Zip (2024)

ts_zip compresses text files using a Large Language Model, requiring a GPU and 4 GB RAM, with a high compression ratio but slow speed. It supports English and other languages, including source code, with deterministic and reproducible results.

LLVM: The bad parts

The author, the lead maintainer of the LLVM project, lists several issues with the project, including insufficient review capacity, frequent API changes, and slow build times, and suggests ways to address these problems. The author also mentions several other issues, such as the need for end-to-end testing, better handling of undefined values, and improved performance tracking infrastructure, ...

Apple picks Gemini to power Siri

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Apple is partnering with Google to use Gemini models for Siri's AI features, citing Google's technology as the most capable foundation. The multi-year deal will unlock new experiences for Apple users, with Google's market value surpassing $4 trillion.

Chromium Has Merged JpegXL

Gerrit Code Review

Show HN: AI in SolidWorks

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LAD is a SolidWorks Add-in that uses natural conversation to create CAD models and assemblies. It verifies operations, corrects mistakes, and stores checkpoints for control and reproducibility.

Zirgen: Compiler for a Domain-Specific Language

https://opengraph.githubassets.com/9a76811ed0611e2dd1ef8f477ec45c3ab62211b07e04c07566186d0656fae8c2/risc0/zirgen
Zirgen is a compiler for a domain-specific language that creates arithmetic circuits for RISC Zero's proof system. It allows users to build accelerators or entire VMs for better performance, but is still a work in progress.

Anthropic made a mistake in cutting off third-party clients

Anthropic closed a loophole in their API, rejecting third-party clients, and lost customer goodwill. This move may have given rival OpenAI an opportunity to gain ground in the LLM market.

The Homepage of Ron Goodwin

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In his 60 years in the music business RON GOODWIN composed, arranged, orchestrated and conducted music in all fields of the profession. In his early years he arranged for all the leading orchestras of the day and arranged and conducted recording sessions for top vocal artists. He then recorded under his own name RON GOODWIN AND HIS CONCERT ORCHESTRA and became a top-selling artist in his own ...

Windows 8 Desktop Environment for Linux

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Win8De is a Linux shell for Wayland window managers that provides a Windows 8-like interface with animations and features. It can be installed and configured to run on Linux systems, with customizable settings and support for drag and drop functionality.

F2 (YC S25) Is Hiring

F2 is hiring a Product Designer to craft user experiences for its B2B AI product, partnering with teams to define workflows and elevate design language. The ideal candidate has 2+ years of experience in product design, a strong portfolio, and experience with SaaS products and AI-driven tools.

Show HN: Yolobox – Run AI coding agents with full sudo without nuking home dir

https://opengraph.githubassets.com/00f12e5e38b09c30ee3c57e917e9d10a739c3e67c1c5b15d5aa860bfe98aa61e/finbarr/yolobox
To run AI coding agents in YOLO mode, install yolobox with curl or clone and build it, then use yolobox to run commands like yolobox run claude.

Why BM25 queries with more terms can be faster (and other scaling surprises)

https://turbopuffer.com/api/og?title=Why%20BM25%20queries%20with%20more%20terms%20can%20be%20faster%20(and%20other%20scaling%20surprises)
BM25 query latencies vary by query, term count, document count, and top_k values. Essential term count and non-essential clause cost impact latency, with some queries scaling efficiently despite having more terms.

Show HN: Agent-of-empires: OpenCode and Claude Code session manager

https://raw.githubusercontent.com/njbrake/agent-of-empires/main/assets/tui.png
Agent of Empires (aoe) is a Rust tool using tmux to manage AI coding sessions, with profiles for separate workspaces and sessions. It provides commands for launching, checking, testing, formatting, and debugging code, with known issues when connecting via SSH.

The struggle of resizing windows on macOS Tahoe

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macOS Tahoe's large corner radius causes usability issues with window resizing due to an unresponsive area near the corner. Users must grab the window outside the corner for reliable resizing, which feels unnatural and error-prone.