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Stories from June 30, 2025 (UTC)
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1.
The new skill in AI is not prompting, it's context engineering (philschmid.de)
755 points by robotswantdata 18 hours ago | 417 comments
2.
I write type-safe generic data structures in C (danielchasehooper.com)
369 points by todsacerdoti 22 hours ago | 145 comments
3.
Donkey Kong Country 2 and Open Bus (jsgroth.dev)
247 points by colejohnson66 1 day ago | 60 comments
4.
The hidden JTAG in a Qualcomm/Snapdragon device’s USB port (linaro.org)
211 points by denysvitali 20 hours ago | 32 comments
5.
Gridfinity: The modular, open-source grid storage system (gridfinity.xyz)
412 points by nateb2022 1 day ago | 173 comments
6.
Cell Towers Can Double as Cheap Radar Systems for Ports and Harbors (2014) (ieee.org)
132 points by transpute 1 day ago | 70 comments
7.
Show HN: New Ensō – first public beta (sonnet.io)
239 points by rpastuszak 1 day ago | 84 comments
8.
Sony DTC-700 audio DAT player/recorder (kevinboone.me)
103 points by naves 21 hours ago | 83 comments
9.
Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken (github.com/m4thyou)
265 points by matthewolfe 1 day ago | 71 comments
10.
The $25k car is going extinct? (hubspot.com)
307 points by pseudolus 1 day ago | 1056 comments
11.
The provenance memory model for C (gustedt.wordpress.com)
216 points by HexDecOctBin 1 day ago | 121 comments
12.
New proof dramatically compresses space needed for computation (scientificamerican.com)
184 points by baruchel 4 days ago | 95 comments
13.
A glob of 99M-year-old amber trapped a zombie fungus erupting from a fly (cnn.com)
124 points by jackgavigan 4 days ago | 66 comments
14.
End of an Era (erasmatazz.com)
177 points by marcusestes 20 hours ago | 47 comments
15.
The Plot of the Phantom, a text adventure that took 40 years to finish (scottandrew.com)
190 points by SeenNotHeard 3 days ago | 38 comments
16.
The original LZEXE (A.K.A. Kosinski) compressor source code has been released (clownacy.wordpress.com)
103 points by elvis70 20 hours ago | 8 comments
17.
Anticheat Update Tracking (not-matthias.github.io)
115 points by not-matthias 1 day ago | 65 comments
18.
GPEmu: A GPU emulator for rapid, low-cost deep learning prototyping [pdf] (vldb.org)
63 points by matt_d 16 hours ago | 11 comments
19.
The Book of Shaders (2015) (thebookofshaders.com)
186 points by max_ 4 days ago | 24 comments
20.
Ultrasound toothbrush promises painless checks for hidden gum problems (phys.org)
87 points by PaulHoule 4 days ago | 73 comments
21.
A CarFax for Used PCs; Hewlett Packard wants to give old laptops new life (ieee.org)
88 points by rubenbe 22 hours ago | 92 comments
22.
Touching the back wall of the Apple store (lauramichet.com)
248 points by nivethan 4 days ago | 208 comments
23.
Finding a former Australian prime minister’s passport number on Instagram (2020) (pdf.zone)
166 points by guiambros 1 day ago | 63 comments
24.
NativeJIT: A C++ expression –> x64 JIT (2018) (github.com/bitfunnel)
73 points by nateb2022 1 day ago | 44 comments
25.
Jim Boddie codeveloped the first successful DSP at Bell Labs (ieee.org)
48 points by jnord 17 hours ago | 1 comment
26.
Use keyword-only arguments in Python dataclasses (chipx86.blog)
95 points by Bogdanp 1 day ago | 52 comments
27.
Want to meet people, try charging them for it? (eatonphil.com)
186 points by ArneVogel 1 day ago | 88 comments
28.
Jane Austen's Boldest Novel Is Also Her Least Understood (nytimes.com)
94 points by lermontov 3 days ago | 16 comments
29.
Ask HN: What's the 2025 stack for a self-hosted photo library with local AI?
200 points by jamesxv7 21 hours ago | 104 comments
30.
Entropy of a Mixture (cgad.ski)
49 points by cgadski 18 hours ago | 4 comments

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