top 50% hacker news stories for 2026-04-19

Vercel April 2026 security incident

https://vercel.com/kb/bulletin/vercel-april-2026-security-incident

4 months ago

5x5 Pixel font for tiny screens

https://maurycyz.com/projects/mcufont/

4 months ago

Stop trying to engineer your way out of listening to people

https://ashley.rolfmore.com/stop-trying-to-engineer-your-way-out-of-listening-to-people/

4 months ago

Notion leaks email addresses of all editors of any public page

https://twitter.com/weezerOSINT/status/2045849358462222720

4 months ago

Vercel Says Internal Systems Hit in Breach

https://decipher.sc/2026/04/19/vercel-says-internal-systems-hit-in-breach/

4 months ago

Edit store price tags using Flipper Zero

https://github.com/i12bp8/TagTinker

4 months ago

★ 1.1k C GPL-3.0

Changes in the system prompt between Claude Opus 4.6 and 4.7

https://simonwillison.net/2026/Apr/18/opus-system-prompt/

4 months ago

The RAM shortage could last years

https://www.theverge.com/ai-artificial-intelligence/914672/the-ram-shortage-could-last-years

4 months ago

The seven programming ur-languages

https://madhadron.com/programming/seven_ur_languages.html

4 months ago

Turtle WoW classic server announces shutdown after Blizzard wins injunction

https://www.pcgamer.com/games/world-of-warcraft/turtle-wow-classic-server-announces-shutdown-after-blizzard-wins-injunction/

4 months ago

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

https://news.ycombinator.com/item?id=47822940

4 months ago

Airline worker arrested after sharing photos of bomb damage in WhatsApp group

https://www.lbc.co.uk/article/dubai-police-spied-private-whatsapp-5HjdXwr_2/

4 months ago

The creative software industry has declared war on Adobe

https://www.theverge.com/tech/913765/adobe-rivals-free-creative-software-app-updates

4 months ago

Swiss authorities want to reduce dependency on Microsoft

https://www.swissinfo.ch/eng/swiss-ai/swiss-authorities-want-to-reduce-dependency-on-microsoft/91280532

4 months ago

2,100 Swiss municipalities showing which provider handles their official email

https://mxmap.ch/

4 months ago

A Brief History of Fish Sauce

https://www.legalnomads.com/fish-sauce/

4 months ago

The world in which IPv6 was a good design

https://apenwarr.ca/log/20170810

4 months ago

The Bromine Chokepoint: How Strife Could Halt Production of World’s Memory Chips

https://warontherocks.com/cogs-of-war/the-bromine-chokepoint-how-strife-in-the-middle-east-could-halt-production-of-the-worlds-memory-chips/

4 months ago

10 years ago, someone wrote a test for servo that included an expiry in 2026

https://mastodon.social/@jdm_/116429380667467307

4 months ago

In the UK, EVs are cheaper than petrol cars, thanks to Chinese competition

https://electrek.co/2026/04/18/in-the-uk-evs-are-cheaper-than-petrol-cars-thanks-to-chinese-competition/

4 months ago

Modern Rendering Culling Techniques

https://krupitskas.com/posts/modern_culling_techniques/

4 months ago

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

https://www.eff.org/deeplinks/2026/04/keep-pushing-we-get-10-more-days-reform-section-702

4 months ago

Windows Server 2025 Runs Better on ARM

https://jasoneckert.github.io/myblog/server-2025-arm64/

4 months ago

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

https://www.usenix.org/system/files/conference/woot17/woot17-paper-guri.pdf

4 months ago

Show HN: Prompt-to-Excalidraw demo with Gemma 4 E2B in the browser (3.1GB)

https://teamchong.github.io/turboquant-wasm/draw.html

4 months ago

Scientific datasets are riddled with copy-paste errors

https://www.sciencedetective.org/scientific-datasets-are-riddled-with-copy-paste-errors/

4 months ago

Ex-CEO, ex-CFO of bankrupt AI company charged with fraud

https://www.reuters.com/legal/government/ex-ceo-ex-cfo-bankrupt-ai-company-charged-with-fraud-2026-04-17/

4 months ago

Clojure: Transducers

https://clojure.org/reference/transducers

4 months ago

PM Carney declares U.S. ties now a 'weakness' in address to Canadians

https://www.ctvnews.ca/politics/article/pm-carney-declares-us-ties-now-a-weakness-in-address-to-canadians/

4 months ago

Notes from the SF Peptide Scene

https://12gramsofcarbon.com/p/notes-from-the-sf-peptide-scene

4 months ago

Show HN: Faceoff – A terminal UI for following NHL games

https://www.vincentgregoire.com/faceoff/

4 months ago

The purist's guide to phở in Hanoi

https://connla.substack.com/p/pho-in-hanoi-a-purists-guide

4 months ago

When moving fast, talking is the first thing to break

https://daverupert.com/2026/04/more-talk-less-grok/

4 months ago

MuJoCo – Advanced Physics Simulation

https://github.com/google-deepmind/mujoco

4 months ago

★ 13.2k C++ Apache-2.0

Six Levels of Dark Mode

https://cssence.com/2024/six-levels-of-dark-mode/

4 months ago

Garbage Collection Without Unsafe Code

https://fitzgen.com/2024/02/06/safe-gc.html

4 months ago

Banned by Anthropic

https://bannedbyanthropic.com/

4 months ago

MAGA Is Winning Its War Against U.S. Science

https://paulkrugman.substack.com/p/maga-is-winning-its-war-against-us

4 months ago

Contact Lens Uses Microfluidics to Monitor and Treat Glaucoma

https://spectrum.ieee.org/smart-contact-lens-glaucoma-microfluidics

4 months ago

Russia's doping program is run by the same FSB team that poisoned Navalny

https://theins.press/en/inv/291614

4 months ago

A. J. Ayer – ‘What I Saw When I Was Dead’ (1988)

https://www.philosopher.eu/others-writings/a-j-ayer-what-i-saw-when-i-was-dead/

4 months ago

Uber's AI Push Hits a Wall–CTO Says Budget Struggles Despite $3.4B Spend

https://finance.yahoo.com/sectors/technology/articles/ubers-anthropic-ai-push-hits-223109852.html

4 months ago

CEOs admit AI had no impact on employment or productivity

https://fortune.com/article/why-do-thousands-of-ceos-believe-ai-not-having-impact-productivity-employment-study/

4 months ago

Swiss AI Initiative

https://www.swiss-ai.org

4 months ago

Binary GCD

https://en.algorithmica.org/hpc/algorithms/gcd/#binary-gcd

4 months ago

Bullshit About Bullshit Machines [pdf]

https://aphyr.com/data/posts/411/the-future-of-everything-is-lies.pdf

4 months ago

I wrote a CHIP-8 emulator in my own programming language

https://github.com/navid-m/chip8emu

4 months ago

★ 21 AMPL

Sudo for Windows

https://github.com/microsoft/sudo

4 months ago

★ 5.8k Rust MIT

Got an Old Kindle? It Might Not Work Anymore

https://www.nytimes.com/wirecutter/reviews/older-kindle-support-ending/

4 months ago

Why Zip drives dominated the 90s, then vanished almost overnight

https://www.xda-developers.com/zip-drives-dominated-90s-vanished-almost-overnight/

4 months ago

Blue Origin's rocket reuse achievement marred by upper stage failure

https://arstechnica.com/space/2026/04/errant-upper-stage-spoils-blue-origins-success-in-reusing-new-glenn-booster/

4 months ago

Slava's Monoid Zoo

https://factorcode.org/slava/monoids.html

4 months ago

Modern Front end Complexity: essential or accidental?

https://binaryigor.com/modern-frontend-complexity.html

4 months ago

Hot Wiring the Lisp Machine

https://scheatkode.com/blog/019d463d-38b3-7e63-80fd-6ed97bd8815e/hot-wiring-the-lisp-machine/

4 months ago

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

https://www.bbc.com/news/articles/c0q92lx8q75o

4 months ago