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Modeling what makes paper-folding puzzles hard

https://www.dailyunfold.com/blog/spatial-difficulty
1•astralasia•1h ago

Comments

astralasia•1h ago
Author here, happy to answer questions about any part of this. The scoring weights are hand-tuned from playtesting, not learned from data. Would love to hear from anyone with psychometrics or spatial cognition experience.

Custom themes for any website with one sentence

https://github.com/StyleSwift/StyleSwift
1•zane12580•58s ago•0 comments

Show HN: Cognium – Tree-sitter+taint Tracking SAST for Java,Python,JS,Rust

https://cognium.dev/
1•openmason•1m ago•0 comments

BSD kqueue is a mountain of technical debt

https://ariadne.space/2021/06/05/actually-bsd-kqueue-is-a.html
1•PaulHoule•2m ago•0 comments

Approva. Human approval infrastructure for AI actions. Open Core

https://github.com/lookmanrays/approva
1•guardienaveugle•3m ago•0 comments

ECB ready to hike rates even if expected inflation surge is short-lived

https://www.cnbc.com/2026/03/25/ecb-rate-hikes-inflation-forecasts-christine-lagarde-iran-war.html
2•inaros•6m ago•0 comments

Fiber optic cables reveal a serious problem at the heart of modern farming

https://grist.org/drought/fiber-optic-cables-reveal-a-serious-problem-at-the-heart-of-modern-farm...
2•Brajeshwar•6m ago•0 comments

Apple launches age verification for UK iPhone users

https://www.politico.eu/article/apple-launches-age-verification-for-uk-iphone-users/
2•miohtama•8m ago•0 comments

I ran 3,360 safety tests on GPT-4o, Claude, Grok, DeepSeek, Gemini

https://github.com/aestrad7/llm-break-bench
2•aestrad7•8m ago•1 comments

FCC imposes ban on foreign-made routers, affecting all new models

https://arstechnica.com/tech-policy/2026/03/trump-fcc-prohibits-import-and-sale-of-new-wi-fi-rout...
1•Velocifyer•10m ago•0 comments

Cova – Audit your monitoring stack for blind spots

https://getcova.ai
1•Paulo75•11m ago•1 comments

Expert Personas Improve LLM Alignment but Damage Accuracy

https://arxiv.org/abs/2603.18507
1•inaros•11m ago•0 comments

Thoughts on Slowing the Fuck Down

https://mariozechner.at/posts/2026-03-25-thoughts-on-slowing-the-fuck-down/
2•jdkoeck•11m ago•0 comments

Show HN: BitTank – 1.58-bit neural networks in 30 KB of vanilla JavaScript

https://mediatank.github.io/bittank/
1•panayman•12m ago•0 comments

ApiArk – an open-source, local-first Postman alternative

https://github.com/berbicanes/apiark
4•matijash•12m ago•0 comments

OLAP GraphDB: CSR analytical views coexisting with OLTP (with LDBC benchmarks)

https://arcadedb.com/blog/graph-olap-engine-the-fastest-graph-analytics-with-zero-compromises/
2•lvca•12m ago•0 comments

Show HN: Wordbird: free dictation for Mac running Nvidia Parakeet locally

https://github.com/tillahoffmann/wordbird
2•earthnail•13m ago•0 comments

Ark – AI agents waste ~30% of context on tool schemas.I built runtime that learn

https://github.com/atripati/ark
1•atripat6•14m ago•0 comments

Show HN: A Query Engine: A 7-Part Deep Dive in Rust

https://tech-lessons.in/en/blog/inside_a_query_engine_introduction/
1•sarthakmakhija•15m ago•1 comments

Apple Rolls Out Age Verification Requirements for UK Users

https://www.bloomberg.com/news/articles/2026-03-25/apple-rolls-out-age-verification-requirements-...
3•miohtama•16m ago•1 comments

Show HN: Stickynotes.fyi – a free browser sticky notes board that saves locally

https://stickynotes.fyi
1•saidin•18m ago•0 comments

Population's cadmium overexposure requires urgent action, French agency tells

https://www.lemonde.fr/en/france/article/2026/03/25/population-s-cadmium-overexposure-requires-ur...
2•rawgabbit•18m ago•0 comments

Claude Is Down

10•haebom•18m ago•2 comments

Agentic Utilities – Citrini Research

https://www.citriniresearch.com/p/agentic-utilities
1•stareatgoats•19m ago•0 comments

Ask HN: How do you manage knowledge you accumulate as a developer?

1•kubanowacki•19m ago•1 comments

We Social Engineered Our Own AI. Here's What Happened

https://reikon.io/blog/red-team/
1•Monotoko•20m ago•0 comments

The Terminal I Wished Existed, So I Built It

https://yaw.sh/blog/the-terminal-i-wished-existed-so-i-built-it/
3•tkjef•20m ago•0 comments

The Comeback of Small Conferences

https://www.flarup.email/p/the-comeback-of-small-conferences
1•thecosas•21m ago•0 comments

Europe facing fuel shortage within days, warns Shell boss

https://finance.yahoo.com/m/0f82d44c-cba3-3392-853e-5964c10f94bc/europe-facing-fuel-shortage.html
4•alecco•22m ago•0 comments

The frantic, high-tech fight to stop climate-fueled dengue fever

https://grist.org/health/the-fight-to-stop-climate-fueled-dengue-fever-mosquitoes/
1•Brajeshwar•23m ago•0 comments

Apple introduces age verification for iCloud accounts in the UK

https://www.engadget.com/big-tech/apple-introduces-age-verification-for-icloud-accounts-in-the-uk...
4•scrlk•25m ago•1 comments