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Stories from June 30, 2025
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1.
The new skill in AI is not prompting, it's context engineering (philschmid.de)
872 points by robotswantdata 1 day ago | 505 comments
2.
I write type-safe generic data structures in C (danielchasehooper.com)
406 points by todsacerdoti 1 day ago | 175 comments
3.
Donkey Kong Country 2 and Open Bus (jsgroth.dev)
261 points by colejohnson66 1 day ago | 62 comments
4.
The hidden JTAG in a Qualcomm/Snapdragon device’s USB port (linaro.org)
239 points by denysvitali 1 day ago | 35 comments
5.
Gridfinity: The modular, open-source grid storage system (gridfinity.xyz)
421 points by nateb2022 2 days ago | 176 comments
6.
Cell Towers Can Double as Cheap Radar Systems for Ports and Harbors (2014) (ieee.org)
135 points by transpute 2 days ago | 70 comments
7.
Show HN: New Ensō – first public beta (sonnet.io)
246 points by rpastuszak 2 days ago | 87 comments
8.
Sony DTC-700 audio DAT player/recorder (kevinboone.me)
113 points by naves 1 day ago | 86 comments
9.
Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken (github.com/m4thyou)
277 points by matthewolfe 2 days ago | 72 comments
10.
The $25k car is going extinct? (hubspot.com)
315 points by pseudolus 2 days ago | 1091 comments
11.
End of an Era (erasmatazz.com)
210 points by marcusestes 1 day ago | 52 comments
12.
The provenance memory model for C (gustedt.wordpress.com)
222 points by HexDecOctBin 2 days ago | 141 comments
13.
New proof dramatically compresses space needed for computation (scientificamerican.com)
187 points by baruchel 5 days ago | 95 comments
14.
A glob of 99M-year-old amber trapped a zombie fungus erupting from a fly (cnn.com)
126 points by jackgavigan 5 days ago | 66 comments
15.
The Plot of the Phantom, a text adventure that took 40 years to finish (scottandrew.com)
190 points by SeenNotHeard 4 days ago | 44 comments
16.
The original LZEXE (A.K.A. Kosinski) compressor source code has been released (clownacy.wordpress.com)
122 points by elvis70 1 day ago | 10 comments
17.
GPEmu: A GPU emulator for rapid, low-cost deep learning prototyping [pdf] (vldb.org)
78 points by matt_d 1 day ago | 12 comments
18.
Anticheat Update Tracking (not-matthias.github.io)
122 points by not-matthias 2 days ago | 66 comments
19.
The Book of Shaders (2015) (thebookofshaders.com)
187 points by max_ 5 days ago | 24 comments
20.
A CarFax for Used PCs; Hewlett Packard wants to give old laptops new life (ieee.org)
94 points by rubenbe 1 day ago | 105 comments
21.
Ultrasound toothbrush promises painless checks for hidden gum problems (phys.org)
93 points by PaulHoule 5 days ago | 77 comments
22.
Touching the back wall of the Apple store (lauramichet.com)
251 points by nivethan 5 days ago | 210 comments
23.
Finding a former Australian prime minister’s passport number on Instagram (2020) (pdf.zone)
166 points by guiambros 2 days ago | 65 comments
24.
NativeJIT: A C++ expression –> x64 JIT (2018) (github.com/bitfunnel)
74 points by nateb2022 2 days ago | 46 comments
25.
Jim Boddie codeveloped the first successful DSP at Bell Labs (ieee.org)
52 points by jnord 1 day ago | 1 comment
26.
Use keyword-only arguments in Python dataclasses (chipx86.blog)
95 points by Bogdanp 2 days ago | 52 comments
27.
Want to meet people, try charging them for it? (eatonphil.com)
190 points by ArneVogel 2 days ago | 89 comments
28.
Jane Austen's Boldest Novel Is Also Her Least Understood (nytimes.com)
96 points by lermontov 4 days ago | 16 comments
29.
Ask HN: What's the 2025 stack for a self-hosted photo library with local AI?
220 points by jamesxv7 1 day ago | 116 comments
30.
Entropy of a Mixture (cgad.ski)
53 points by cgadski 1 day ago | 5 comments

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