The best of Hacker News - July 3, 2025

1.
Exploiting the IKKO Activebuds “AI powered” earbuds (2024)

477 points

2.
Show HN: CSS generator for a high-def glass effect

263 points

3.
ASCIIMoon: The moon's phase live in ASCII art

183 points

4.
Couchers is officially out of beta

172 points

5.
What to build instead of AI agents

125 points

6.
AI note takers are flooding Zoom calls as workers opt to skip meetings

120 points

7.
Features of D That I Love

103 points

8.
Trans-Taiga Road (2004)

84 points

9.
A Higgs-Bugson in the Linux Kernel

81 points

10.
That XOR Trick (2020)

77 points

11.
Whole-genome ancestry of an Old Kingdom Egyptian

77 points

12.
Vitamin C Boosts Epidermal Growth via DNA Demethylation

72 points

13.
Next month, saved passwords will no longer be in Microsoft’s Authenticator app

60 points

14.
Physicists Start to Pin Down How Stars Forge Heavy Atoms

53 points

15.
Nano-engineered thermoelectrics enable scalable, compressor-free cooling

46 points

16.
Gmailtail – Command-line tool to monitor Gmail messages and output them as JSON

39 points

17.
Conversations with a Hit Man

37 points

18.
Fei-Fei Li: Spatial intelligence is the next frontier in AI [video]

36 points

19.
Third Interstellar Object Discovered

31 points

20.
LLMs as Compilers

7 points

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