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Hacker News · Technology

Changes in the system prompt between Claude Opus 4.6 and 4.7

Article URL: https://simonwillison.net/2026/Apr/18/opus-system-prompt/ Comments URL: https://news.ycombinator.com/item?id=47823270 Points: 15 # Comments: 2

pretext 5 months ago

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Hacker News · Technology

Ask HN: How did you land your first projects as a solo engineer/consultant?

I’ve spent roughly the last decade and some change as a software engineer, and recently decided to start a solo consultancy.I’m focused on helping SMEs sort out the messy back-office parts of the business: spreadsheet glue, brittle internal workflows, poor reporting, awkward integrations, backend/p...

modelcroissant 5 months ago

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Hacker News · Technology

SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit [pdf] (2017)

Article URL: https://www.usenix.org/system/files/conference/woot17/woot17-paper-guri.pdf Comments URL: https://news.ycombinator.com/item?id=47822805 Points: 29 # Comments: 11

Eridanus2 5 months ago

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Hacker News · Technology

Binary GCD

Article URL: https://en.algorithmica.org/hpc/algorithms/gcd/#binary-gcd Comments URL: https://news.ycombinator.com/item?id=47822737 Points: 6 # Comments: 0

tosh 5 months ago

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Hacker News · Technology

A Brief History of Fish Sauce

Article URL: https://www.legalnomads.com/fish-sauce/ Comments URL: https://news.ycombinator.com/item?id=47822734 Points: 19 # Comments: 4

vinhnx 5 months ago

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Hacker News · Technology

The seven programming ur-languages

Article URL: https://madhadron.com/programming/seven_ur_languages.html Comments URL: https://news.ycombinator.com/item?id=47822486 Points: 16 # Comments: 3

helloplanets 5 months ago

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Hacker News · Technology

The RAM shortage could last years

Article URL: https://www.theverge.com/ai-artificial-intelligence/914672/the-ram-shortage-could-last-years Comments URL: https://news.ycombinator.com/item?id=47822414 Points: 20 # Comments: 12

omer_k 5 months ago

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Hacker News · Technology

Keep Pushing: We Get 10 More Days to Reform Section 702

Article URL: https://www.eff.org/deeplinks/2026/04/keep-pushing-we-get-10-more-days-reform-section-702 Comments URL: https://news.ycombinator.com/item?id=47822356 Points: 10 # Comments: 0

nobody9999 5 months ago

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Hacker News · Technology

Chernobyl's last wedding: The couple who married as a nuclear disaster unfolded

Article URL: https://www.bbc.com/news/articles/c0q92lx8q75o Comments URL: https://news.ycombinator.com/item?id=47822066 Points: 5 # Comments: 0

1659447091 5 months ago

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Hacker News · Technology

Bipartisan Bill to Tighten Controls on Sensitive Chipmaking Equipment

Article URL: https://baumgartner.house.gov/2026/04/02/baumgartner-introduces-bipartisan-bill-to-tighten-controls-on-sensitive-chipmaking-equipment/ Comments URL: https://news.ycombinator.com/item?id=47821603 Points: 12 # Comments: 2

num42 5 months ago

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Hacker News · Technology

The world in which IPv6 was a good design

Article URL: https://apenwarr.ca/log/20170810 Comments URL: https://news.ycombinator.com/item?id=47821429 Points: 13 # Comments: 1

signa11 5 months ago

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Hacker News · Technology

NASA Shuts Off Instrument on Voyager 1 to Keep Spacecraft Operating

Article URL: https://science.nasa.gov/blogs/voyager/2026/04/17/nasa-shuts-off-instrument-on-voyager-1-to-keep-spacecraft-operating/ Comments URL: https://news.ycombinator.com/item?id=47820531 Points: 56 # Comments: 17

sohkamyung 5 months ago

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Hacker News · Technology

Zero-Copy GPU Inference from WebAssembly on Apple Silicon

Article URL: https://abacusnoir.com/2026/04/18/zero-copy-gpu-inference-from-webassembly-on-apple-silicon/ Comments URL: https://news.ycombinator.com/item?id=47820195 Points: 11 # Comments: 7

agambrahma 5 months ago

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Hacker News · Technology

Show HN: Sostactic – polynomial inequalities using sums-of-squares in Lean

Current support for nonlinear inequalities in Lean is quite limited. This package attempts to solve this. It contains a collection of Lean4 tactics for proving polynomial inequalities via sum-of-squares (SOS) decompositions, powered by a Python backend. You can use it via Python or Lean.These tacti...

mmaaz 5 months ago

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Hacker News · Technology

Dad brains: How fatherhood rewires the male mind

Article URL: https://www.bbc.com/future/article/20260417-fatherhood-how-the-male-brain-and-body-prepare-for-childcare Comments URL: https://news.ycombinator.com/item?id=47820046 Points: 66 # Comments: 26

tchalla 5 months ago

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Hacker News · Technology

My first impressions on ROCm and Strix Halo

Article URL: https://blog.marcoinacio.com/posts/my-first-impressions-rocm-strix-halo/ Comments URL: https://news.ycombinator.com/item?id=47819823 Points: 11 # Comments: 0

random_ 5 months ago

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Hacker News · Technology

Any Color You Like: NIST Scientists Create 'Any Wavelength' Lasers

Article URL: https://www.nist.gov/news-events/news/2026/04/any-color-you-nist-scientists-create-any-wavelength-lasers-tiny-circuits Comments URL: https://news.ycombinator.com/item?id=47819453 Points: 50 # Comments: 14

rbanffy 5 months ago

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Hacker News · Technology

SDF Public Access Unix System

Article URL: https://sdf.org/?ssh Comments URL: https://news.ycombinator.com/item?id=47819410 Points: 90 # Comments: 34

neehao 5 months ago

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Hacker News · Technology

Optimizing Ruby Path Methods

Article URL: https://byroot.github.io/ruby/performance/2026/04/18/faster-paths.html Comments URL: https://news.ycombinator.com/item?id=47819369 Points: 23 # Comments: 10

weaksauce 5 months ago

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Hacker News · Technology

PostgreSQL production incident caused by transaction ID wraparound

Article URL: https://www.sqlservercentral.com/articles/i-too-have-a-production-story-a-downtime-caused-by-postgres-transaction-id-wraparound-problem Comments URL: https://news.ycombinator.com/item?id=47819305 Points: 6 # Comments: 1

tcp_handshaker 5 months ago

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Hacker News · Technology

Young sons of legendary U.S. marshal ride horseback from Oklahoma to New York

Article URL: https://texascooppower.com/the-astonishing-ride-of-the-abernathy-boys/ Comments URL: https://news.ycombinator.com/item?id=47818704 Points: 3 # Comments: 0

mhb 5 months ago

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Hacker News · Technology

Thoughts and feelings around Claude Design

Article URL: https://samhenri.gold/blog/20260418-claude-design/ Comments URL: https://news.ycombinator.com/item?id=47818700 Points: 22 # Comments: 2

cdrnsf 5 months ago

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Hacker News · Technology

College instructor turns to typewriters to curb AI-written work

Article URL: https://sentinelcolorado.com/uncategorized/a-college-instructor-turns-to-typewriters-to-curb-ai-written-work-and-teach-life-lessons/ Comments URL: https://news.ycombinator.com/item?id=47818485 Points: 9 # Comments: 1

gnabgib 5 months ago

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Hacker News · Technology

Traders placed over $1B in perfectly timed bets on the Iran war

Article URL: https://www.theguardian.com/world/2026/apr/18/iran-war-bets-ethics-concerns Comments URL: https://news.ycombinator.com/item?id=47818305 Points: 28 # Comments: 15

trocado 5 months ago

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