The best of Hacker News - May 27, 2025

1.
CSS Minecraft

556 points

2.
A new class of materials that can passively harvest water from air

338 points

3.
Lossless video compression using Bloom filters

225 points

4.
Show HN: PgDog – Shard Postgres without extensions

206 points

5.
Trying to teach in the age of the AI homework machine

165 points

6.
TSMC bets on unorthodox optical tech

142 points

7.
FromSoft's singular mech game Chromehounds is back online

106 points

8.
Power Failure: The downfall of General Electric

93 points

9.
Get PC BIOS back on UEFI only system

91 points

10.
Highlights from the Claude 4 system prompt

87 points

11.
Yes-rs: A fast, memory-safe rewrite of the classic Unix yes command

78 points

12.
Ask HN: What projects do you donate to?

56 points

13.
The UI future is colourful and dimensional

55 points

14.
GitHub MCP exploited: Accessing private repositories via MCP

53 points

15.
SVG Favicons in Action

46 points

16.
Clojure MCP

40 points

17.
Calendars, Contacts and Files in Stalwart

36 points

18.
Show HN: Lazy Tetris

8 points

19.
Demonstrating end-to-end scientific discovery with Robin: a multi-agent system

4 points

20.
Mesa3D Drivers for Windows

3 points

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