HN Top 10 — July 10, 2026
Today’s Top 10 on Hacker News
1. OpenAI releases GPT-5 deployment safety report and documentation
| ⭐ 1319 | 💬 922 | 👤 logickkk1 |
OpenAI has published a deployment safety report for GPT-5, along with updated API documentation for the latest model. The report outlines safety measures, risk mitigations, and responsible deployment guidelines for the GPT-5 series, reflecting OpenAI’s structured approach to scaling advanced models.
2. Running GLM 5.2 locally on 32GB RAM — a journey with Colibrì
| ⭐ 707 | 💬 170 | 👤 vforno |
The author successfully ran GLM 5.2 — a 744B Mixture-of-Experts model — locally on a machine with 32GB RAM by activating only ~40B parameters per token. They created Colibrì, a tool that uses DSA for long context and int4 quantization, achieving usable conversation speeds despite the model’s massive size.
3. In Emacs, Everything Looks Like a Service
| ⭐ 32 | 💬 3 | 👤 kickingvegas |
An exploration of how Emacs extends the Unix philosophy of composable tools, treating every component — buffers, modes, packages — as a service that can be combined, replaced, or extended. The post argues that Emacs embodies microservice architecture at the editor level.
4. EU Parliament greenlights Chat Control 1.0
| ⭐ 1423 | 💬 678 | 👤 rapnie |
The EU Parliament has approved Chat Control 1.0, a controversial measure mandating scanning of encrypted communications for potential illegal content. MEP Patrick Breyer criticizes the legislation, arguing it undermines privacy protections and puts children at greater risk by breaking end-to-end encryption.
5. Train sim created by just one person is being called the best ever made
| ⭐ 633 | 💬 233 | 👤 oumua_don17 |
A single developer has created a train simulation game called ‘Running Train’ on Steam that’s receiving widespread critical acclaim. The project demonstrates what one dedicated programmer can achieve, with reviewers calling it potentially the best train simulation ever made, challenging larger studio productions.
6. Show HN: 18 Words
| ⭐ 1009 | 💬 325 | 👤 pompomsheep |
A minimalist language-learning tool called ‘18 Words’ that focuses on building vocabulary through short, structured daily sessions. The project is a Show HN submission, offering a focused approach to language acquisition by limiting practice to a small number of words per day rather than overwhelming learners.
7. Postgres rewritten in Rust, now passing 100% of the Postgres regression tests
| ⭐ 692 | 💬 581 | 👤 SweetSoftPillow |
pgrust is a complete rewrite of PostgreSQL in Rust that now passes 100% of the official Postgres regression test suite. This milestone demonstrates that a Rust-based reimplementation can achieve full compatibility with the original C codebase, potentially offering improved memory safety and performance.
8. Apple Silicon Exec Explains Mac Mini AI Demand and On-Device Future
| ⭐ 85 | 💬 108 | 👤 tosh |
Apple Silicon executives have outlined the strategy behind Mac Mini demand driven by AI workloads, emphasizing on-device AI capabilities. The discussion covers how Apple Silicon architecture handles local AI processing and the roadmap for bringing more AI features directly to macOS devices.
9. AI-generated videos to maximally drive a target brain region
| ⭐ 73 | 💬 68 | 👤 smusamashah |
EPFL researchers have developed a system that uses AI to generate videos specifically designed to maximally activate target brain regions. The project combines neural activity prediction with generative video models, opening new possibilities for neuroscience research and brain-computer interfaces.
10. Interview with Mitchell Hashimoto about Ghostty and Zig
| ⭐ 266 | 💬 126 | 👤 veqq |
Mitchell Hashimoto discusses Ghostty, the terminal emulator he built in Zig, covering the technical decisions behind rewriting a terminal from scratch. The interview covers performance benefits of Zig over Go, memory management, and the philosophy of building tools that solve real problems rather than chasing trends.