top 50% hacker news stories for 2026-07-31

Show HN: Elevators

https://john.fun/elevators

2 months ago

1 change
1678 upvotes – 415 comments

The session you cannot take with you

https://earendil.com/posts/session-portability/

2 months ago

1 change
789 upvotes – 226 comments

DeepSeek-V4-Flash Update

https://api-docs.deepseek.com/updates/

2 months ago

1 change
745 upvotes – 347 comments

qm – Multiplayer agent harness for work

https://github.com/yc-software/qm

2 months ago

★ 12.4k TypeScript MIT1 change
678 upvotes – 164 comments

Tailscale didn't stop the Hugging Face intrusion

https://tailscale.com/blog/hugging-face-intrusion

2 months ago

626 upvotes – 217 comments

DeepSeek V4 Flash 0731 Intelligence, Performance and Price Analysis

https://artificialanalysis.ai/models/deepseek-v4-flash

2 months ago

2 changes
594 upvotes – 312 comments

Google fixed more Chrome bugs in June than over the past two years, thanks to AI

https://blog.google/security/chrome-stronger-with-every-update/

2 months ago

585 upvotes – 610 comments

The End of an Era

https://hughhowey.com/the-end-of-an-era/

2 months ago

454 upvotes – 459 comments

Run Kimi K3 using 29 GB of RAM at 0.50 tok/s

https://github.com/sqliteai/waste

2 months ago

★ 1.8k C Apache-2.0
339 upvotes – 166 comments

Big Food vs. the People

https://www.lighthousereports.com/investigation/big-food-vs-the-people/

2 months ago

274 upvotes – 183 comments

Decades-old fish sauce at abandoned factory in Canada finally being removed

https://defector.com/abandoned-fish-sauce-canada-interview

2 months ago

2 changes
267 upvotes – 287 comments

Severance

https://lcamtuf.substack.com/p/severance

2 months ago

267 upvotes – 98 comments

The most official water costs $120k a gallon

https://signoregalilei.com/2026/07/26/the-most-official-water-costs-120000-a-gallon/

2 months ago

240 upvotes – 187 comments

JEP 401: Value Objects (Preview) merged to OpenJDK master

https://github.com/openjdk/jdk/pull/31120

2 months ago

★ 23.1k Java GPL-2.0
237 upvotes – 176 comments

Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio

https://www.jeffgeerling.com/blog/2026/getting-25g-ethernet-mac-thunderbolt/

2 months ago

229 upvotes – 118 comments

A big win for Android interoperability

https://www.openhomefoundation.org/blog/a-big-win-for-android-interoperability/

2 months ago

228 upvotes – 185 comments

Is AI reasoning right for the wrong reasons?

https://www.quantamagazine.org/is-ai-reasoning-right-for-the-wrong-reasons-20260731/

2 months ago

1 change
224 upvotes – 250 comments

Show HN: Gander, an Android file viewer that asks for no permissions

https://github.com/mokshablr/gander

2 months ago

★ 547 JavaScript MIT1 change
211 upvotes – 78 comments

Learn how chips are made with this Rollercoaster Tycoon-inspired animation

https://laurentiugabriel.github.io/ChipTycoon/

2 months ago

210 upvotes – 70 comments

June in Servo: real world compat, media queries, SharedWorker, and more

https://servo.org/blog/2026/07/31/june-in-servo/

2 months ago

197 upvotes – 66 comments

Progressive Web Components

https://arielsalminen.com/2026/progressive-web-components/

2 months ago

195 upvotes – 56 comments

Danube's record low levels force shutdown of Hungary's only nuclear plant

https://www.bbc.com/news/articles/cn0nqv05g0do

2 months ago

193 upvotes – 243 comments

Show HN: A Handwritten Blogging Platform

https://handwritten.blog/

2 months ago

192 upvotes – 92 comments

Increasing the lifespan of a bulb makes it worse in every other way

https://maurycyz.com/misc/tungsten/

2 months ago

1 change
189 upvotes – 193 comments

Unearthing my 1996 windowed OS in machine code for Am29000 homebrew computer

https://nanochess.org/the_am29000_computer.html

2 months ago

187 upvotes – 34 comments

Golang proposal: container/: generic collection types

https://github.com/golang/go/issues/80590

2 months ago

★ 135.6k Go BSD-3-Clause
185 upvotes – 201 comments

A California aquifer may have crossed the point of no return

https://www.science.org/content/article/california-aquifer-may-have-crossed-point-no-return

2 months ago

178 upvotes – 165 comments

Dubious research tied to Red Bull has shaped energy drink policy

https://www.theexamination.org/articles/red-bull-funded-research-energy-drinks-alcohol

2 months ago

167 upvotes – 249 comments

Arch Linux disables AUR package adoption

https://lwn.net/Articles/1086489/

2 months ago

164 upvotes – 127 comments

Show HN: I worked on a new browser for 2 years, today it passed Acid 3

https://code.intellios.ai/cwbrowser/

2 months ago

160 upvotes – 45 comments

The Maxwell Conjecture Is False (GPT 5.6 Sol)

https://arxiv.org/abs/2607.27197

2 months ago

157 upvotes – 142 comments

Situational Awareness down 67% in July in AI stock rout

https://www.wsj.com/finance/investing/situational-awareness-down-67-in-july-in-ai-stock-rout-cd19901f

2 months ago

1 change
155 upvotes – 167 comments

When transit passes were designed by hand (2022)

https://letterformarchive.org/news/milwaukee-transit-passes/

2 months ago

1 change
153 upvotes – 34 comments

The AI trade now runs on borrowed money, and the lenders are repricing it

https://greyswansignals.com/?theme=dark

2 months ago

143 upvotes – 169 comments

Read the novels and forget everything else

https://hedgehogreview.com/web-features/thr/posts/read-the-novels-and-forget-everything-else

2 months ago

1 change
141 upvotes – 127 comments

Let's make the worst Htmx

https://zserge.com/posts/worst-htmx-ever/

2 months ago

1 change
141 upvotes – 80 comments

Atomic Clocks

https://www.nist.gov/atomic-clocks/how-do-atomic-clocks-work

2 months ago

140 upvotes – 84 comments

Show HN: What should the GUI for AI agents look like?

https://marbleos.com/demo

2 months ago

1 change
139 upvotes – 86 comments

The bond market isn’t buying what Fed Chair Warsh is selling

https://www.reuters.com/commentary/reuters-open-interest/bond-market-isnt-buying-what-fed-chair-warsh-is-selling-2026-07-30/

2 months ago

1 change
139 upvotes – 96 comments

Algorithms on billion-scale graph using 10GB RAM: I love DataFusion

https://semyonsinchenko.github.io/ssinchenko/post/datafusion-graphs-cc-2/

2 months ago

137 upvotes – 40 comments

Autoregressive Language Model on the 6502 Processor

https://mattbeton.com/blog/bitnet-6502.html

2 months ago

136 upvotes – 12 comments

Why we write our own C and C++ inference engines

https://localai.io/blog/why-we-write-our-own-engines/

2 months ago

133 upvotes – 51 comments

Everyone is building LLM routers, we deprecated ours

https://manifest.build/blog/why-we-deprecated-our-llm-router/

2 months ago

132 upvotes – 86 comments

Online Friends Are Real Friends

https://toska.bearblog.dev/re-online-friends-are-real-friends/

2 months ago

129 upvotes – 87 comments

Massively Parallel Postgres Backups

https://planetscale.com/blog/massively-parallel-postgres-backups

2 months ago

125 upvotes – 16 comments

Just because a game is on disc doesn't mean it will work in the future

https://arstechnica.com/gaming/2026/07/the-disc-is-not-the-game-physical-releases-increasingly-require-extra-downloads/

2 months ago

124 upvotes – 132 comments

U.S. debt-to-GDP ratio reaches 123%

https://fred.stlouisfed.org/series/GFDEGDQ188S

2 months ago

123 upvotes – 215 comments

Why etymologies matter: How tracing words can illuminate history (2024)

https://resobscura.substack.com/p/why-i-love-etymologies

2 months ago

117 upvotes – 24 comments

Moonshot’s Kimi uses 20k Nvidia chip cluster from Alibaba

https://www.bloomberg.com/news/articles/2026-07-31/moonshot-s-kimi-built-on-20-000-nvidia-chip-cluster-from-alibaba

2 months ago

2 changes
114 upvotes – 76 comments

Authorize, don't authenticate

https://blog.marcua.net/2026/07/31/authorize-dont-authenticate.html

2 months ago

1 change
109 upvotes – 45 comments

Goodhart's Law Comes for Every Benchmark You Trust

https://cacm.acm.org/blogcacm/goodharts-law-comes-for-every-benchmark-you-trust/

2 months ago

100 upvotes – 43 comments

Where .env Went Wrong

https://secretspec.dev/blog/where-env-went-wrong/

2 months ago

99 upvotes – 69 comments

Show HN: BitBang – Reach machines behind NAT from a browser, no account

https://github.com/richlegrand/bitbang-cli

2 months ago

★ 273 Go MIT
97 upvotes – 38 comments

Anti-fraud tools can't keep pace with robocall scammers

https://broadbandbreakfast.com/how-to-fight-back-against-fraudulent-robocalls/

2 months ago

1 change
88 upvotes – 144 comments

Why is it all in the kernel?

https://lawrencecpaulson.github.io//2026/07/30/Collatz.html

2 months ago

86 upvotes – 39 comments

Using the railway network as a flatbed scanner [video]

https://media.ccc.de/v/emf2026-74-1-using-the-railway-network-as-a-flatbed-scanner

2 months ago

85 upvotes – 34 comments

Ruby Central's Destructive Legacy

https://andre.arko.net/2026/07/30/ruby-centrals-destructive-legacy/

2 months ago

84 upvotes – 51 comments

Exact, parallel 2D Delaunay triangulation for int32 coordinates

https://github.com/morishuz/delaunay32

2 months ago

★ 161 C++ MIT
83 upvotes – 24 comments

Dario Amodei's stance on open weights is self-serving and short-sighted

https://janilowski.pl/en/blog/2026/amodei-memo/

2 months ago

82 upvotes – 30 comments

The EU is making the Right to Repair the new standard in Europe

https://ec.social-network.europa.eu/@EUCommission/117013565926587088

2 months ago

81 upvotes – 8 comments

Don't stop early: Case-folding source code at memory speed

https://github.blog/engineering/architecture-optimization/dont-stop-early-case-folding-source-code-at-memory-speed/

2 months ago

80 upvotes – 34 comments

Exploring the "Dario and Amanda" Prompt

https://alec.is/posts/exploring-the-dario-and-amanda-prompt/

2 months ago

75 upvotes – 17 comments

New Defcon Badges Pack a Unique Open-Source Chip That Doubles as a Security Key

https://www.wired.com/story/defcon-34-badge-baochip-andrew-bunnie-huang/

2 months ago

73 upvotes – 11 comments

Kelly Criterion Simulator

https://kellysimulator.com/

2 months ago

72 upvotes – 30 comments

Clockwise/Spiral Rule (1994)

https://c-faq.com/decl/spiral.anderson.html

2 months ago

1 change
72 upvotes – 53 comments

k-Coloring is Faster than Computing the Chromatic Number

https://arxiv.org/abs/2607.25973

2 months ago

72 upvotes – 22 comments

Morioka Shoten

https://www.takram.com/projects/a-single-room-with-a-single-book-morioka-shoten

2 months ago

70 upvotes – 20 comments

A GTK4 SSH-askpass in Zig

https://xn--gckvb8fzb.com/a-gtk4-ssh-askpass-in-zig/

2 months ago

67 upvotes – 27 comments

Termixer (TUI DJ Mixer)

https://github.com/l00sed/termixer

2 months ago

★ 212 Rust MIT
67 upvotes – 40 comments

The great wealth transfer reality check

https://usa.visa.com/partner-with-us/visa-consulting-analytics/economic-insights/great-wealth-transfer-reality-check.html

2 months ago

66 upvotes – 117 comments

Demystifying DRAM Read Disturbance: RowHammer and RowPress Phenomena

https://arxiv.org/abs/2607.28233

2 months ago

63 upvotes – 47 comments

Nano Banana 2 removed from Google Earth

https://www.digitaldigging.org/p/nano-banana-2-removed-from-google

2 months ago

61 upvotes – 40 comments

They Forgot What Happened Last Time: Hacking the Windows 365 Link [video]

https://media.ccc.de/v/emf2026-93-1-they-forgot-what-happened-last-time

2 months ago

59 upvotes – 2 comments

Energizing a vacuum-tube flip-flop module from a 1948 IBM system

https://www.righto.com/2026/07/ibm-604-trigger-tube-module.html

2 months ago

56 upvotes – 16 comments

"the very foundation of modern academia has been blown to bits"

https://twitter.com/lemire/status/2082851447499088173

2 months ago

56 upvotes – 79 comments

Admin: Terminally Ill Patients Aren't Exempt from Medicaid Work Requirements

https://www.commondreams.org/news/trump-medicaid-work-requirements-2677293170

2 months ago

56 upvotes – 37 comments
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