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The map that keeps Burning Man honest

https://www.not-ship.com/burning-man-moop/
428•speckx•5h ago•192 comments

Agents need control flow, not more prompts

https://bsuh.bearblog.dev/agents-need-control-flow/
143•bsuh•3h ago•71 comments

Natural Language Autoencoders: Turning Claude's Thoughts into Text

https://www.anthropic.com/research/natural-language-autoencoders
64•instagraham•1h ago•12 comments

AlphaEvolve: Gemini-powered coding agent scaling impact across fields

https://deepmind.google/blog/alphaevolve-impact/
193•berlianta•4h ago•75 comments

DeepSeek 4 Flash local inference engine for Metal

https://github.com/antirez/ds4
155•tamnd•4h ago•50 comments

AI Slop Is Killing Online Communities

https://rmoff.net/2026/05/06/ai-slop-is-killing-online-communities/
102•thm•1h ago•66 comments

Child marriages plunged when girls stayed in school in Nigeria

https://www.nature.com/articles/d41586-026-00720-8
270•surprisetalk•6h ago•191 comments

Chrome removes claim of On-device Al not sending data to Google Servers

https://old.reddit.com/r/chrome/comments/1t5qayz/chrome_removes_claim_of_ondevice_al_not_sending/
261•newsoftheday•3h ago•91 comments

I want to live like Costco people

https://tastecooking.com/i-want-to-live-like-costco-people/
98•speckx•4h ago•229 comments

Principles for agent-native CLIs

https://twitter.com/trevin/status/2051316002730991795
22•blumpy22•2h ago•4 comments

PySimpleGUI 6

https://github.com/PySimpleGUI/PySimpleGUI
61•geophph•2d ago•22 comments

OpenBSD Stories: The closest thing to cute kittens (OpenBSD/zaurus)

http://miod.online.fr/software/openbsd/stories/zaurus1.html
44•zdw•1d ago•5 comments

The Self-Cancelling Subscription

https://predr.ag/blog/the-self-cancelling-subscription/
114•surprisetalk•5h ago•49 comments

Dirtyfrag: Universal Linux LPE

https://www.openwall.com/lists/oss-security/2026/05/07/8
6•flipped•28m ago•0 comments

RaTeX: KaTeX-compatible LaTeX rendering engine in pure Rust

https://ratex.lites.dev/
132•atilimcetin•3d ago•81 comments

SQLite Is a Library of Congress Recommended Storage Format

https://sqlite.org/locrsf.html
570•whatisabcdefgh•21h ago•173 comments

Motherboard sales 'collapse' amid unprecedented shortages fueled by AI

https://www.tomshardware.com/pc-components/motherboards/motherboard-sales-collapse-by-more-than-2...
167•speckx•4h ago•190 comments

MPEG-2 Transport Stream Packaging for Media over QUIC Transport

https://www.ietf.org/archive/id/draft-gregoire-moq-msfts-00.html
42•mondainx•5h ago•12 comments

Colored Shadow Penumbra

https://chosker.github.io/blog/colored-shadow-penumbra
3•ibobev•46m ago•0 comments

Printing Blogs

https://fi-le.net/print/
23•fi-le•1d ago•5 comments

Show HN: Stage CLI – an easier way of reading your AI generated changes locally

https://github.com/ReviewStage/stage-cli
20•cpan22•4h ago•14 comments

GovernGPT (YC W24) Is Hiring Engineers to Build Thinking Systems in Montreal

https://www.ycombinator.com/companies/governgpt/jobs/hRyltS0-backend-engineer-thinking-systems
1•owalerys•7h ago

Nobody Reviews Compiler Output

https://skiplabs.io/blog/codegen_as_compiler
4•rzk•2d ago•0 comments

OurCar: What I learned making an app for my family

https://mendelgreenberg.com/posts/ourcar/
78•chabad360•1d ago•54 comments

Show HN: TRUST – Coding Rust like it's 1989

https://github.com/wojtczyk/trust
85•wojtczyk•13h ago•57 comments

Boris Cherny: TI-83 Plus Basic Programming Tutorial (2004)

https://www.ticalc.org/programming/columns/83plus-bas/cherny/
161•suoken•2d ago•69 comments

Brazil's Pix Payment System Faces Pressure from Visa and Mastercard

https://www.elciudadano.com/en/brazils-pix-payment-system-faces-pressure-from-visa-and-mastercard...
54•wslh•2h ago•36 comments

How Cloudflare responded to the “Copy Fail” Linux vulnerability

https://blog.cloudflare.com/copy-fail-linux-vulnerability-mitigation/
66•mobeigi•6h ago•55 comments

ZAYA1-8B matches DeepSeek-R1 on math with less than 1B active parameters

https://firethering.com/zaya1-8b-open-source-math-coding-model/
66•steveharing1•10h ago•49 comments

ProgramBench: Can language models rebuild programs from scratch?

https://arxiv.org/abs/2605.03546
122•jonbaer•16h ago•69 comments
Open in hackernews

Brazil's Pix Payment System Faces Pressure from Visa and Mastercard

https://www.elciudadano.com/en/brazils-pix-payment-system-faces-pressure-from-visa-and-mastercard/04/04/
54•wslh•2h ago

Comments

bell-cot•1h ago
It would be Un-American to overlook any chance to forcibly intervene in a Latin America country for the financial benefit of a large American company...wouldn't it?
manoDev•50m ago
https://www.whitehouse.gov/presidential-actions/2025/12/amer...
jacknews•1h ago
Every country should have this.

Why would you let America take 2-3% of your transaction volumes?

It perhaps made sense when the technology was difficult, and America was trusted, but ...

hvb2•1h ago
I misunderstood, psd2 is Europe's equivalent.

And yes, every country should have this. Even America

Daedren•54m ago
PSD2 is merely a framework for an uniform access to banking, same APIs everywhere. While you can send money through it, it's still through the same means as normal.

Many of the european countries have their own "Pix", but there's no European-wide alternative. The ECB wants to make one (tentatively titled "digital euro"), but it's going to take a long time to come out.

pcardoso•49m ago
There are plans for interoperability between the various European payment apps.

My local app (MB Way, PT) can be used to send money to Spain and Italy. Others will follow.

https://www.mbway.pt/a-interoperabilidade-e-o-futuro-dos-pag... (link in portuguese)

boudin•11m ago
Wero is the alternative, it's moving on quite well. https://en.wikipedia.org/wiki/Wero_(payment)
KK7NIL•1h ago
> Why would you let America take 2-3% of your transaction volumes?

I don't think VISA/Mastercard takes such a fee? (They'd be some of the biggest companies in the world if they did.)

The fees they charge are actually fractions of a percent, the rest are charged by the card issuer, which is usually your bank.

You could, in theory, use the VISA network and not pay those fees to a card issuer.

surgical_fire•44m ago
Still greater than 0.

There's absolutely no reason for a country to outsource paynent infrastructure to US corporations.

cyberax•12m ago
> You could, in theory, use the VISA network and not pay those fees to a card issuer.

You can not. The only way is to have a private agreement with the card issuer. That's why stores all try to push their co-branded cards.

ExpertAdvisor01•1h ago
It's interesting that we live in 2026 and people still don't understand the fees of credit card processing.

Visa charges only a Assessment fee the majority goes to Issuer Bank +PSP.

E.g: Interchange fee (0.8-1.8%): Paid by acquirer to issuer (card-holding bank)

Assessment fee (0.1-0.3%): Paid to card network (Visa, Mastercard)

Acquirer margin (0.3-0.8%): Retained by merchant’s payment processor

guntars•51m ago
The banks and the payment processors are the real customers of the payment networks and they all do better when they can squeeze more money from the end users - the cardholders and the businesses. Pix cuts out these middlemen and that’s an existential threat to their business model, ergo an “investigation” by the Trump admin.
Scaled•50m ago
The army of middlemen with their hands out is the worst part, where you also have fees paid to the merchant bank, the iso/payment service provider, and a chain of agents. In disfavored industries like adult content, this can reach 15% or more, plus thousands in annual "high risk" fees (even if chargeback rate is good). It's a huge anticompetitive racket, and the sooner US can shake off Visa/MasterCard, the better off we'll be.
varispeed•19m ago
All should be free. Imagine if government decided to impose 3% revenue tax, yet these companies get a free pass.

If these networks cannot run this for free, then they should be nationalised and tax payer should cover it. It will be cheaper (because it will become non-profit) for everyone and better.

gib444•56m ago
> Why would you let America take 2-3% of your transaction volumes?

And spy on every single transaction

expedition32•27m ago
It made sense back in the 1970s when it was hard for an American to pay for a hotel room in Manilla.

But in 2026 data moves in a micro second from one continent to another.

marcosdumay•1h ago
Heh, Lula has a just slight lead on the elections this year.

If he cedes to the pressure, odds are he will so completely destroy his popularity that he won't even be able to be a candidate. He almost certainly knows that.

The pressure is irrelevant. Pix is not going away.

mrkramer•1h ago
Pix is for domestic use right? So tourists who come to Brazil still use Visa and Mastercard as well as Brazilian tourists who travel abroad. Visa and Mastercard are companies of the past, crypto and stablecoins will destroy them sooner or later.
SirFatty•1h ago
"crypto and stablecoins will destroy them sooner or later."

LOL!

mrkramer•1h ago
I meant digital dollar and digital euro, you won't need Visa and Mastercard anymore.
cyberax•44m ago
Dollar is already "digital", and has been for the last 50 years or so.
mrkramer•38m ago
I meant this https://www.federalreserve.gov/central-bank-digital-currency..., this https://en.wikipedia.org/wiki/Digital_euro and this https://en.wikipedia.org/wiki/Digital_renminbi
wslh•37m ago
No, for example Argentinian tourists use Belo[1] for paying in Brazil. No need for credit cards.

[1] https://www.belo.app/en-us/ar/

madhacker•53m ago
Hey Visa/Mastercard — try that move in China and see how well it turns out.
yorwba•48m ago
Happens all the time: https://ustr.gov/search?q=initiates+section+301+investigatio...
g8oz•52m ago
Despite what the White House thinks American companies are not owed a business model.
bell-cot•2m ago
...unless they generously grease the right palms, or push the right "us vs. them" buttons.
dbolgheroni•51m ago
People underestimate how difficult it was to transfer money before Pix, even between local banks. The process was hard to use, it could take days and the fees were huge, depending on your bank. Pix solved all these problems.

What happens also is that many sellers provide discounts when using Pix, because you dodge the expensive fees charged not only by Visa and MasterCard, but the fees operators (banks, fintechs) charge to provide the infrastructure (PoS machines, financing for installments, etc, the last one being quite common in the country) to use these networks.

protastus•15m ago
I think we need to put this in context for folks who are not from Brazil.

Comparatively, a domestic bank wire in Brazil before Pix was already easier and faster than one in the US today. I don't recall the bank fees being bad either.

The issue is that bank wires were never designed for buying lunch at the food court. They're not instant and not user friendly to set up.

Pix is alien technology next to the stuff we have in the US.

Freak_NL•8m ago
It sounds a bit like the Dutch Tikkie with the QR codes and instant transfer. Of course, in the EU most bank wires are already free when using SEPA, and often nearly instant as well. This Tikkie thing is a way to easily create a payment request for people who can't be arsed to simply carry cash (and raise the country's resilience to system failure in the process).
jszymborski•5m ago
Would you say that Pix is comparable to Canada's Interac Debit?
jnettome•30m ago
How difficult is for USA administration learn good practices and initiatives and think into implementing those? And also, why Master and Visa haven’t came with a solution where they integrate with all of that and innovate?

This idea that all they do should be de facto standard for the whole world is so démodé.

protastus•18m ago
My understanding is that FedNow could become something like Pix, but implementation is voluntary. In Brazil, the central bank required all retail banks of significance to implement Pix by a certain deadline.

Visa and Mastercard are very much against FedNow becoming widely used, as it would destroy their business.

shpx•22m ago
It's surprising that Visa and Mastercard are even private companies. I expected that the government would be in charge of money and not let a group of people impose a 1-3% tax on their population. In the US, credit cards account for "71% of nationwide retail sales dollars".

Governments aren't competent enough to do tech stuff well and they would never make something that works in a different country as well as credit cards do, but still.

ronsor•6m ago
Banks are private companies. The Federal Reserve is partially private.
pimeys•11m ago
In EU we have multiple national systems, but now they are trying to unify them to the IBAN system, so you can pay in the same way by opening your bank app and scanning a QR code:

https://wero-wallet.eu/

My bank (N26) should support this later this year. I hope it becomes as big and successful as Pix.