The best of Hacker News - August 9, 2025

1.
Ultrathin business card runs a fluid simulation

916 points

2.
I want everything local – Building my offline AI workspace

585 points

3.
Jim Lovell, Apollo 13 commander, has died

444 points

4.
Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?

355 points

5.
The surprise deprecation of GPT-4o for ChatGPT consumers

331 points

6.
Getting good results from Claude Code

295 points

7.
Tor: How a military project became a lifeline for privacy

280 points

8.
How we replaced Elasticsearch and MongoDB with Rust and RocksDB

218 points

9.
Astronomy Photographer of the Year 2025 shortlist

189 points

10.
Window Activation

186 points

11.
Efrit: A native elisp coding agent running in Emacs

104 points

12.
Fire hazard of WHY2025 badge due to 18650 Li-Ion cells

90 points

13.
I bought a £16 smartwatch just because it used USB-C

73 points

14.
Hacking Diffusion into Qwen3 for the Arc Challenge

62 points

15.
Engineer restores pay phones for free public use

60 points

16.
Tesla used car prices keep plumetting, dips below average used car

55 points

17.
Unmasking the Sea Star Killer

50 points

18.
What the windsurf sale means for the AI coding ecosystem

39 points

19.
How to safely escape JSON inside HTML SCRIPT elements

21 points

20.
Technical issues of separation in function cells and value cells (1988)

4 points

Previous
Next