Hacker News on Friday, 9 January 2026

Cloudflare CEO on the Italy fines(twitter.com)

613 points by sidcool 9 months ago | 957 comments

A post on X by Cloudflare CEO Matthew Prince responding to Italy fining Cloudflare €14 million for refusing to filter pirate sites on its 1.1.1.1 DNS.

“Erdos problem #728 was solved more or less autonomously by AI”(mathstodon.xyz)

590 points by cod1r 9 months ago | 334 comments

Terence Tao's Mastodon post reporting that Erdős problem #728 was solved more or less autonomously by AI, and discussing emerging AI-powered capabilities in mathematics.

Anthropic blocks third-party use of Claude Code subscriptions(github.com)

514 points by sergiotapia 9 months ago | 426 comments

GitHub issue on the opencode repo reporting that Claude Max credentials now fail with an error saying they are only authorized for use with Claude Code.

Show HN: I made a memory game to teach you to play piano by ear(lend-me-your-ears.specr.net)

490 points by vunderba 9 months ago | 163 comments

Lend Me Your Ears is a browser-based musical ear training memory game meant to teach playing piano by ear.

Code and Let Live(fly.io)

459 points by usrme 9 months ago | 173 comments

Fly.io blog post titled "Code And Let Live", tied to the launch of Sprites (sprites.dev), a persistent cloud sandbox environment for running code.

The Vietnam government has banned rooted phones from using any banking app(xdaforums.com)

456 points by Magnusmaster 9 months ago | 542 comments

XDA Forums discussion thread page about hiding root and mods, fingerprint spoofing, and keybox issues to pass Android integrity checks, cited regarding Vietnam's rooted-phone banking ban.

Flock Hardcoded the Password for America's Surveillance Infrastructure 53 Times(nexanet.ai)

456 points by fuck_flock 9 months ago | 147 comments

Nexanet threat intel blog post reporting that Flock Safety hardcoded a password 53 times across its surveillance infrastructure software.

Kagi releases alpha version of Orion for Linux(help.kagi.com)

449 points by HelloUsername 9 months ago | 296 comments

Kagi documentation page describing the alpha status of the Orion browser for Linux, listing which features are ready to test.

How Markdown took over the world(anildash.com)

389 points by zdw 9 months ago | 292 comments

Anil Dash blog post recounting the history of Markdown and how it became a ubiquitous text formatting standard across software and AI.

Mathematics for Computer Science (2018) [pdf](courses.csail.mit.edu)

366 points by vismit2000 9 months ago | 62 comments

PDF of the 2018 revision of the MIT textbook Mathematics for Computer Science by Eric Lehman, F. Thomson Leighton, and Albert R. Meyer.

European Commission issues call for evidence on open source(lwn.net)

366 points by pabs3 9 months ago | 285 comments

LWN brief reporting that the European Commission opened a call for evidence on open source to shape its European Open Digital Ecosystem Strategy, with feedback due February 3, 2026.

JavaScript Demos in 140 Characters(beta.dwitter.net)

325 points by themanmaran 9 months ago | 59 comments

Dwitter, a community site for sharing and remixing JavaScript canvas demos written in 140 characters or less.

London–Calcutta bus service(en.wikipedia.org)

305 points by thunderbong 9 months ago | 159 comments

Show HN: Scroll Wikipedia like TikTok(quack.sdan.io)

299 points by sdan 9 months ago | 78 comments

Exercise can be nearly as effective as therapy for depression(sciencedaily.com)

297 points by mustaphah 9 months ago | 242 comments

What happened to WebAssembly(emnudge.dev)

293 points by enz 9 months ago | 275 comments

RTX 5090 and Raspberry Pi: Can it game?(scottjg.com)

265 points by scottjg 9 months ago | 105 comments

Start your meetings at 5 minutes past(philipotoole.com)

251 points by otoolep 9 months ago | 209 comments

Why I left iNaturalist(kueda.net)

250 points by erutuon 9 months ago | 142 comments

39c3: In-house electronics manufacturing from scratch: How hard can it be? [video](media.ccc.de)

243 points by fried-gluttony 9 months ago | 100 comments

C++ std::move doesn't move anything: A deep dive into Value Categories(0xghost.dev)

228 points by signa11 9 months ago | 190 comments

SendGrid isn’t emailing about ICE or BLM – it’s a phishing attack(fredbenenson.com)

170 points by mecredis 9 months ago | 123 comments

Do not mistake a resilient global economy for populist success(economist.com)

168 points by andsoitis 9 months ago | 202 comments

Show HN: Rocket Launch and Orbit Simulator(donutthejedi.com)

157 points by donutthejedi 9 months ago | 36 comments

The No Fakes Act has a “fingerprinting” trap that kills open source?(old.reddit.com)

156 points by guerrilla 9 months ago | 63 comments

My article on why AI is great (or terrible) or how to use it(matthewrocklin.com)

151 points by akshayka 9 months ago | 208 comments

The Cray-1 Computer System (1977) [pdf](s3data.computerhistory.org)

143 points by LordGrey 9 months ago | 89 comments

You are not required to close your <p>, <li>, <img>, or <br> tags in HTML(blog.novalistic.com)

128 points by jen729w 9 months ago | 195 comments

How to store a chess position in 26 bytes (2022)(ezzeriesa.notion.site)

112 points by kurinikku 9 months ago | 94 comments

MCP is a fad(tombedor.dev)

106 points by risemlbill 9 months ago | 76 comments

Show HN: Executable Markdown files with Unix pipes

98 points by jedwhite 9 months ago | 79 comments

Surveillance Watch – A map that shows connections between surveillance companies(surveillancewatch.io)

96 points by kekqqq 9 months ago | 22 comments

Putting the "You" in CPU (2023)(cpu.land)

82 points by vinhnx 9 months ago | 12 comments

Latest SteamOS Beta Now Includes Ntsync Kernel Driver(phoronix.com)

80 points by LorenDB 9 months ago | 28 comments

Implementing a web server in a single printf() call (2014)(tinyhack.com)

76 points by nateb2022 9 months ago | 8 comments

Handling secrets (somewhat) securely in shells(linus.schreibt.jetzt)

72 points by todsacerdoti 9 months ago | 39 comments

April 9, 1940 a Dish Best Served Cold (2021)(todayinhistory.blog)

69 points by vinnyglennon 9 months ago | 11 comments

Show HN: Various shape regularization algorithms(github.com)

64 points by nickponline 9 months ago | 4 comments

Agonist-Antagonist Myoneural Interface(media.mit.edu)

63 points by kaycebasques 9 months ago | 5 comments

Datadog, thank you for blocking us(deductive.ai)

62 points by binarylogic 9 months ago | 29 comments

Test your square brackets(fluca1978.github.io)

62 points by speckx 9 months ago | 53 comments

Turn a single image into a navigable 3D Gaussian Splat with depth(lab.revelium.studio)

62 points by ytpete 9 months ago | 38 comments

How can I build a simple pulse generator to demonstrate transmission lines(electronics.stackexchange.com)

58 points by alphabetter 9 months ago | 12 comments

Logistics Is Dying; Or – Dude, Where's My Mail?(lagomor.ph)

56 points by ChilledTonic 9 months ago | 39 comments

Show HN: EuConform – Offline-first EU AI Act compliance tool (open source)(github.com)

56 points by hiepler 9 months ago | 34 comments

Garbage collection is contrarian(trynova.dev)

55 points by aapoalas 9 months ago | 11 comments

Amiga Pointer Archive(heckmeck.de)

54 points by erickhill 9 months ago | 18 comments

San Remo Pasta Measurer(toxel.com)

52 points by surprisetalk 9 months ago | 39 comments

"They Saw a Protest": Cognitive Illiberalism and the Speech-Conduct Distinction [pdf] (2012)(stanfordlawreview.org)

51 points by pcaharrier 9 months ago | 39 comments

Why Real Life is better than IRC (2000)(everything2.com)

50 points by themaxdavitt 9 months ago | 41 comments

Designing an IPv6-native P2P transport – lessons from building I6P(theushen.medium.com)

50 points by TheusHen 9 months ago | 39 comments

Inlining – The Ultimate Optimisation(xania.org)

49 points by PaulHoule 9 months ago | 18 comments

India's Electric Two-Wheeler Market: Rise, Reset and What Comes Next(micromobility.io)

46 points by prabinjoel 9 months ago | 43 comments

U.S. mandates more foreign travelers to pay $15,000 visa bond deposits(washingtonpost.com)

46 points by hmokiguess 9 months ago | 28 comments

Washington National Opera Is Leaving the Kennedy Center(nytimes.com)

43 points by mikhael 9 months ago | 7 comments

Sigmund Freud's Begonia(observer.co.uk)

41 points by dang 9 months ago | 10 comments

QtNat – Open you port with Qt UPnP(renaudguezennec.eu)

40 points by jandeboevrie 9 months ago | 34 comments

Deno has made its PyPI distribution official(github.com)

39 points by zahlman 9 months ago | 24 comments

Moving Scratch generation to Python on browser(kushaldas.in)

39 points by kushaldas 9 months ago | 12 comments

Going for Gold: The Story of the Golden Lego RCX and NXT(bricknerd.com)

37 points by kotaKat 9 months ago | 7 comments