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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)
915 points by robotswantdata 32 days ago | 518 comments
2.
I write type-safe generic data structures in C (danielchasehooper.com)
412 points by todsacerdoti 32 days ago | 181 comments
3.
Donkey Kong Country 2 and Open Bus (jsgroth.dev)
265 points by colejohnson66 32 days ago | 64 comments
4.
The hidden JTAG in a Qualcomm/Snapdragon device’s USB port (linaro.org)
242 points by denysvitali 32 days ago | 39 comments
5.
Gridfinity: The modular, open-source grid storage system (gridfinity.xyz)
432 points by nateb2022 32 days ago | 176 comments
6.
Cell Towers Can Double as Cheap Radar Systems for Ports and Harbors (2014) (ieee.org)
137 points by transpute 33 days ago | 73 comments
7.
Show HN: New Ensō – first public beta (sonnet.io)
251 points by rpastuszak 32 days ago | 87 comments
8.
Sony DTC-700 audio DAT player/recorder (kevinboone.me)
116 points by naves 32 days ago | 86 comments
9.
Show HN: TokenDagger – A tokenizer faster than OpenAI's Tiktoken (github.com/m4thyou)
281 points by matthewolfe 32 days ago | 73 comments
10.
The $25k car is going extinct? (hubspot.com)
321 points by pseudolus 33 days ago | 1114 comments
11.
End of an Era (erasmatazz.com)
215 points by marcusestes 32 days ago | 55 comments
12.
The provenance memory model for C (gustedt.wordpress.com)
225 points by HexDecOctBin 32 days ago | 143 comments
13.
New proof dramatically compresses space needed for computation (scientificamerican.com)
190 points by baruchel 35 days ago | 96 comments
14.
A glob of 99M-year-old amber trapped a zombie fungus erupting from a fly (cnn.com)
128 points by jackgavigan 36 days ago | 68 comments
15.
The Plot of the Phantom, a text adventure that took 40 years to finish (scottandrew.com)
191 points by SeenNotHeard 35 days ago | 45 comments
16.
The original LZEXE (A.K.A. Kosinski) compressor source code has been released (clownacy.wordpress.com)
124 points by elvis70 32 days ago | 10 comments
17.
GPEmu: A GPU emulator for rapid, low-cost deep learning prototyping [pdf] (vldb.org)
82 points by matt_d 32 days ago | 12 comments
18.
Anticheat Update Tracking (not-matthias.github.io)
124 points by not-matthias 33 days ago | 67 comments
19.
The Book of Shaders (2015) (thebookofshaders.com)
188 points by max_ 36 days ago | 24 comments
20.
A CarFax for Used PCs; Hewlett Packard wants to give old laptops new life (ieee.org)
98 points by rubenbe 32 days ago | 110 comments
21.
Ultrasound toothbrush promises painless checks for hidden gum problems (phys.org)
96 points by PaulHoule 36 days ago | 77 comments
22.
Touching the back wall of the Apple store (lauramichet.com)
253 points by nivethan 35 days ago | 226 comments
23.
Finding a former Australian prime minister’s passport number on Instagram (2020) (pdf.zone)
170 points by guiambros 33 days ago | 65 comments
24.
NativeJIT: A C++ expression –> x64 JIT (2018) (github.com/bitfunnel)
75 points by nateb2022 32 days ago | 46 comments
25.
Jim Boddie codeveloped the first successful DSP at Bell Labs (ieee.org)
54 points by jnord 32 days ago | 3 comments
26.
Use keyword-only arguments in Python dataclasses (chipx86.blog)
95 points by Bogdanp 33 days ago | 53 comments
27.
Want to meet people, try charging them for it? (eatonphil.com)
192 points by ArneVogel 32 days ago | 90 comments
28.
Jane Austen's Boldest Novel Is Also Her Least Understood (nytimes.com)
97 points by lermontov 35 days ago | 16 comments
29.
Ask HN: What's the 2025 stack for a self-hosted photo library with local AI?
230 points by jamesxv7 32 days ago | 121 comments
30.
Entropy of a Mixture (cgad.ski)
54 points by cgadski 32 days ago | 5 comments

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