SDF Public Access Unix System

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Ben Lerner's Big Feelings

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Ben Lerner's new book Transcription is a hybrid work that explores the relationship between life and fiction, featuring an unnamed narrator who interviews his mentor Thomas about fatherhood and technology. The book delves into themes of phone addiction, family dynamics, and the blurring of reality and literature.

Stripe's Payment APIs: the first 10 years (2020)

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Abstracting away the complexity of payments has driven the evolution of our APIs over the last decade. Learn more about Stripe payments APIs here.

Vercel April 2026 security incident

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Vercel disclosed a security incident after threat actors claimed to have breached its systems and are selling stolen data. The company is investigating and notifying affected customers, advising them to review environment variables and rotate secrets.

A Brief History of Fish Sauce

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Fish sauce has a long history, with ancient Greeks and Romans producing garum and liquamen, while Southeast Asians independently developed nuoc mam and nam pla. The origins of fish sauce are unclear, but it remains a crucial condiment in Southeast Asian cuisine, with various regional variations and uses.

Claude Token Counter, now with model comparisons

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Claude Token Counter now compares different models, including Opus 4.7 and 4.6, Sonnet 4.6, and Haiku 4.5. Opus 4.7 uses an updated tokenizer, increasing token counts by 1.0-1.35x, and costs 40% more due to the same pricing.

Stop trying to engineer your way out of listening to people

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People avoid doing work by trying to create systems to replace human interaction, but the problem is they're not listening properly to others. To listen effectively, one must understand the complexities of human knowledge and experiences, avoiding assumptions and stereotypes.

Monumental ship burial beneath ancient Norwegian mound predates the Viking Age

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The Bromine Chokepoint

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A global semiconductor memory supply chain is vulnerable to a bromine shortage due to Israel's reliance on bromine imports and limited conversion capacity outside the country. A disruption would immediately impact global memory production, affecting consumer devices, military systems, and AI infrastructure.

Mechanical Keyboard Sounds – A listening Museum

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This website curates 36 mechanical keyboards and switches, providing sound-mapped audio samples from the open-source community. It's a listening museum, not a buying guide, with some entries being proxies or field recordings of the same switch in different host boards.

Turtle WoW classic server announces shutdown after Blizzard wins injunction

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Turtle WoW, a popular World of Warcraft private server, is shutting down on May 14 after a cease and desist from Blizzard. The server will close its servers to the final patch and associated social media channels will shut down later this year.

Zero-copy protobuf and ConnectRPC for Rust

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Anthropic open-sourced two Rust crates, buffa and connect-rust, for Protocol Buffers and ConnectRPC implementation. The crates provide performance and correctness improvements, including zero-copy message views and monomorphic dispatch.

Knitout and Kniterate 3

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The user made progress on the Material Programming Project, learning 2-bed knitting and making test samples on the Kniterate machine, and also attended a workshop on the Brother ribber. They encountered issues with carrier positioning and binding off, but made progress on updating the JS knitout library to include kniterate-specific functions and creating an annotated guide to the .kcode file format.

Changes in the system prompt between Claude Opus 4.6 and 4.7

Anthropic published system prompts for their chat system, with updates from Claude 3 to Opus 4.7, showing changes in child safety, tool usage, and response style. The new prompt includes tools like Claude in Chrome and a tool search mechanism to resolve ambiguities.

Show HN: Run TRELLIS.2 Image-to-3D generation natively on Apple Silicon

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A port of Microsoft's TRELLIS.2 image-to-3D model is available for Apple Silicon via PyTorch MPS. It replaces CUDA-only libraries with pure-PyTorch alternatives, allowing use without an NVIDIA GPU.

Swiss AI Initiative (2023)

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The Swiss AI Initiative was launched in December 2023 with 10m GPU hours and 20m CHF grant for AI research. It brings together 800 researchers for frontier AI research on the Alps supercomputer.

A cache-friendly IPv6 LPM with AVX-512 (linearized B+-tree, real BGP benchmarks)

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PlanB is a linearized B+-tree IPv6 lookup algorithm with AVX-512 SIMD and a scalar fallback. It is a portable, tested, and permissively licensed library for research, teaching, and production software.

Up to 8M Bees Are Living in an Underground Network Beneath This Cemetery

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At first glance, it looks like any other quiet cemetery, with rows of gravestones set against freshly cut grass and the occasional visitor passing through. But just beneath the surface, it is anything but quiet. Millions of bees have built an immense underground city, where they live out their entire lives below ground, building nests, raising young, and going mostly unnoticed. In a study ...

2,100 Swiss municipalities showing which provider handles their official email

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Each municipality's official domain is checked via 11 signals from DNS records, SMTP banners, ASN lookups, and a public Microsoft API endpoint, then classified by provider type with confidence scoring. Disclaimer: DNS records indicate mail routing and authorized senders, not necessarily where data is stored.

Scientific datasets are riddled with copy-paste errors

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A software detected 18 cases of potential data errors in 600 open-access datasets, with 15 cases posted on PubPeer. The true error rate is likely higher than the estimated 3% due to undetectable errors and less lazy methods of data fabrication.

The RAM shortage could last years

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Memory makers will meet only 60 percent of demand by 2027 due to production shortages. New fabrication capacity won't be online until 2027 or 2028, exacerbating the RAM shortage.

Prove you are a robot: CAPTCHAs for agents

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We launched agent-native signup for Browser Use with no email or OAuth. Agents parse obfuscated math problems, and humans sign up the old way.

Six Levels of Dark Mode (2024)

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The author discusses six levels of dark mode in CSS, starting with a meta tag that allows browsers to follow user color scheme preferences. They then explore CSS color-scheme declarations, light-dark() color functions, and media queries for maximum customization.

Show HN: A lightweight way to make agents talk without paying for API usage

The user created a simple workflow to make coding agents interact without APIs or extra dependencies, using existing subscription plans and CLI invocations to preserve conversation history. This workflow allows agents to collaborate and produce multiple perspectives, but its limitations include visibility and potential for polished hallucinations rather than actual improvements.

I wrote a CHIP-8 emulator in my own programming language

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Chip8 Emulator. Contribute to navid-m/chip8emu development by creating an account on GitHub.

Nanopass Framework: Clean Compiler Creation Language

The Nanopass Framework is an embedded domain-specific language for creating compilers that focuses on creating small passes and many intermediate representations. Nanopass reduces the boilerplate required to create compilers making them easier to understand and maintain.

Sudo for Windows (2024)

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Sudo for Windows allows users to run elevated commands from unelevated terminal windows on Windows 11 builds 26045 and later. It's a Windows-specific implementation with different elements than the traditional Unix/Linux sudo project.

Interesting Map Geometry and Mathematics

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The user encountered a problem with generating organic damage on a world map clue where part of the clue could float in a sea of damage without surrounding elements, and they needed to find a solution that was computationally efficient. They eventually came up with a solution that used hidden grids of cannot-be-damaged tiles to prevent islands from forming, and implemented it in the game with ...

SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit [pdf] (2017)

A new type of malware called SPEAKE(a)R can covertly turn headphones, earphones, or simple earbuds connected to a PC into microphones when a standard microphone is not present, muted, taped, or turned off. The malware can record human speech of intelligible quality and eavesdrop from nine meters away, posing a significant cyber security threat.

Show HN: Prompt-to-Excalidraw demo with Gemma 4 E2B in the browser (3.1GB)

Gemma 4 E2B generating Excalidraw diagrams from text prompts, running entirely in desktop Chrome via WebGPU. KV cache compressed 2.4× using TurboQuant's polar+QJL algorithm reimplemented in WGSL compute shaders. Requires Chrome 134+ on desktop — Safari/iOS not supported.