8.9.25 | Ultrathin business card simulates fluid, offline AI workspace creation, Jim Lovell, Apollo 13 commander, has died

This is a recap of the top 10 posts on Hacker News on Aug 9, 2025.Ultrathin business card runs a fluid simulationhttps://github.com/Nicholas-L-Johnson/flip-cardhttps://news.ycombinator.com/item?id=44835879I want everything local – Building my offline AI workspacehttps://instavm.io/blog/building-my-offline-ai-workspacehttps://news.ycombinator.com/item?id=44840013Jim Lovell, Apollo 13 commander, has diedhttps://www.nasa.gov/news-release/acting-nasa-administrator-reflects-on-legacy-of-astronaut-jim-lovell/https://news.ycombinator.com/item?id=44840582Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?https://news.ycombinator.com/item?id=44840728The surprise deprecation of GPT-4o for ChatGPT consumershttps://simonwillison.net/2025/Aug/8/surprise-deprecation-of-gpt-4o/https://news.ycombinator.com/item?id=44839842Getting good results from Claude Codehttps://www.dzombak.com/blog/2025/08/getting-good-results-from-claude-code/https://news.ycombinator.com/item?id=44836879Tor: How a military project became a lifeline for privacyhttps://thereader.mitpress.mit.edu/the-secret-history-of-tor-how-a-military-project-became-a-lifeline-for-privacy/https://news.ycombinator.com/item?id=44838378How we replaced Elasticsearch and MongoDB with Rust and RocksDBhttps://radar.com/blog/high-performance-geocoding-in-rusthttps://news.ycombinator.com/item?id=44836463Astronomy Photographer of the Year 2025 shortlisthttps://www.rmg.co.uk/whats-on/astronomy-photographer-year/galleries/2025-shortlisthttps://news.ycombinator.com/item?id=44837434Window Activationhttps://blog.broulik.de/2025/08/on-window-activation/https://news.ycombinator.com/item?id=44784685