A practical guide to building agents [pdf] https://cdn.openai.com/business-guides-and-resources/a-practical-guide-to-building-agents.pdf
How we reduced the impact of zombie clients https://letsencrypt.org/2025/06/04/how-we-reduced-the-impact-of-zombie-clients/
letsencrypt.org
How We Reduced the Impact of Zombie Clients
Every night, right around midnight (mainly UTC), a horde of zombies wakes up and clamors for … digital certificates!
The zombies in question are abandoned or misconfigured Internet servers and ACME clients that have been set to request certificates from Let’s…
The zombies in question are abandoned or misconfigured Internet servers and ACME clients that have been set to request certificates from Let’s…
Autonomous drone defeats human champions in racing first https://www.tudelft.nl/en/2025/lr/autonomous-drone-from-tu-delft-defeats-human-champions-in-historic-racing-first
TU Delft
Autonomous drone from TU Delft defeats human champions in historic racing first
When memory was measured in kilobytes: The art of efficient vision https://www.softwareheritage.org/2025/06/04/history_computer_vision/
Software Heritage
When memory was measured in kilobytes: The art of efficient vision
Back when RAM was precious, clever code reigned. Inria's "Efficient Chain-Linking Algorithm" from the late 80s, now archived at Software Heritage, gives a peek into early computer vision's elegant solutions.
Apple Notes Expected to Gain Markdown Support in iOS 26 https://www.macrumors.com/2025/06/04/apple-notes-rumored-markdown-support-ios-26/
MacRumors
Apple Notes Expected to Gain Support for Exporting in Markdown in iOS 26
Apple's Notes app is rumored to be getting limited Markdown support in iOS 26 and macOS 26, according to 9to5Mac. The feature would allow users...
OpenAI slams court order to save all ChatGPT logs, including deleted chats https://arstechnica.com/tech-policy/2025/06/openai-says-court-forcing-it-to-save-all-chatgpt-logs-is-a-privacy-nightmare/
Tesla seeks to guard crash data from public disclosure https://www.reuters.com/legal/government/musks-tesla-seeks-guard-crash-data-public-disclosure-2025-06-04/
Show HN: App.build, an open-source AI agent that builds full-stack apps https://www.app.build/
App.Build
Open Source AI Agent: Build Full Stack Apps
App.build is an open-source AI agent that generates and deploys full-stack apps with Postgres. Use it as a reference to build your own agent.
A Spiral Structure in the Inner Oort Cloud https://iopscience.iop.org/article/10.3847/1538-4357/adbf9b
iopscience.iop.org
A Spiral Structure in the Inner Oort Cloud - IOPscience
A Spiral Structure in the Inner Oort Cloud, Nesvorný, David, Dones, Luke, Vokrouhlický, David, Levison, Hal F., Beaugé, Cristian, Faherty, Jacqueline, Emmart, Carter, Parker, Jon P.
Ada and SPARK enter the automotive ISO-26262 market with Nvidia https://www.adacore.com/press/ada-and-spark-enter-the-automotive-iso-26262-market-with-nvidia
AdaCore
Ada and SPARK enter the automotive ISO-26262 market with NVIDIA.
AdaCore is the leading provider of commercial software solutions for Ada, C and C++ — helping developers build safe and secure software that matters.
Show HN: I made a 3D SVG Renderer that projects textures without rasterization https://seve.blog/p/i-made-a-3d-svg-renderer-that-projects
seve.blog
I made a 3D SVG Renderer that projects textures without rasterization
How can you make affine transformations (the only ones SVGs are capable of) resemble perspective transformations?
Old payphones get new life, thanks to Vermont engineer https://www.core77.com/posts/137183/Engineer-Fixes-and-Re-Installs-Old-Payphones-Provides-Free-Calls-to-the-Public
Core77
Engineer Fixes and Re-Installs Old Payphones, Provides Free Calls to the Public
Payphones "were the only things that were built to last for decades and be out in the elements," says electrical engineer Patrick Schlott. He should know; as a hobby, he buys secondhand payphones, rewires them, then asks local businesses in rural Vermont…
Comparing Claude System Prompts Reveal Anthropic's Priorities https://www.dbreunig.com/2025/06/03/comparing-system-prompts-across-claude-versions.html
Drew Breunig
Claude’s System Prompt Changes Reveal Anthropic’s Priorities
Reviewing the few changes in the Claude 4.0 system prompts, we get a sense for how system prompts program chatbot applications.