The best of Hacker News - July 13, 2025

1.
MacPaint Art from the Mid-80s Still Looks Great Today

823 points

2.
Bypassing Google's big anti-adblock update

546 points

3.
Supreme Court's ruling practically wipes out free speech for sex writing online

528 points

4.
New Date("wtf") – How well do you know JavaScript's Date class?

308 points

5.
Kimi k2 largest open source SOTA model?

290 points

6.
Malware found in official gravityforms plugin indicating supply chain breach

204 points

7.
The fish kick may be the fastest subsurface swim stroke yet (2015)

201 points

8.
Lost Chapter of Automate the Boring Stuff: Audio, Video, and Webcams in Python

136 points

9.
Working through 'Writing A C Compiler'

130 points

10.
Chrome's hidden X-Browser-Validation header reverse engineered

101 points

11.
Exposing a web service with Cloudflare Tunnel (2022)

92 points

12.
A better Ghidra MCP server – GhidrAssistMCP

73 points

13.
Hacking Coroutines into C

66 points

14.
Switching to Claude Code and VSCode Inside Docker

57 points

15.
Two-step system makes plastic from carbon dioxide, water and electricity

49 points

16.
Second Variety, by Philip K. Dick (1953)

49 points

17.
Parse, Don't Validate (For C)

31 points

18.
Show HN: I made a JSFiddle-style playground to test and share prompts fast

21 points

19.
HNSW as abstract data structure: video intro to Redis vector sets

14 points

20.
Edward Burtynsky's monumental chronicle of the human impact on the planet

13 points

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