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karlosvomackaon What do Visa and Mastercard do? An intro to card networks

you can just do a chargeback in case of fraudulent transaction.

karlosvomackaon What do Visa and Mastercard do? An intro to card networks

For US readers - in my country in europe I'd say that 95% of people have only debit card, not credit card. it's very not common to have a credit card here. Card payments are extremely common, but everyone uses debit card.

karlosvomackaon I resigned from Anthropic today

none of the things you mentioned is agentic and could posses abilities beyond human level intelligence.

karlosvomackaon Every new car sold in the European Union must include a driver monitoring camera

i have a bmw that read the road signs and then it prompts you if you'd like to readjust your adaptive cruise control to the new speed. Much better system than in VW cars.

karlosvomackaon Ask HN: What are you working on? (May 2026)

530 eur for return train from Prague to Frankfurt? I guess the reason why there aren't any train apps is that traveling by train seems useless at these prices... :(

karlosvomackaon GPT-5.5

use copilot and have access to all models

karlosvomackaon Running Tesla Model 3's computer on my desk using parts from crashed cars

own the software means access to source code, not being able to modify your car.

karlosvomackaon Lazycut: A simple terminal video trimmer using FFmpeg

afaik winget can automatically manage package dependencies.

karlosvomackaon Show HN: Not_pad: local idea hub, Windows, single .exe, no install, zip

132 mb? no source code available?

karlosvomackaon Daily Driving GrapheneOS

yes. I pay with bank transfer on regular basis. Merchant generates a QR code, I scan it with my banking app and I pay him.

karlosvomackaon British Columbia is permanently adopting daylight time

the reason was valid 50 years ago when most people didn't work 9-5 in front of a computer.

karlosvomackaon British Columbia is permanently adopting daylight time

that's a load of horseshit. everyone around me want's the daylight savings time, to have more light after work. nobody cares about mornings.

> when you have to get up an hour earlier

no you don't. it's weekend.

karlosvomackaon GrapheneOS – Break Free from Google and Apple

Using Brave (Chromium based software) is a strange choice from privacy oriented person imo...

karlosvomackaon Minimal x86 Kernel Zig

it doesn't have a bootloader.

karlosvomackaon Mobile carriers can get your GPS location

lol. saw this in money heist (casa de papel). though it was nonsense. turns out it's not.

karlosvomackaon Pasta Cooking Time

IMO the longer the pasta you're choosing needs to be cooked, the more the effect will be pronounced. Look into thin fast cooking pasta.

karlosvomackaon Inflammation now predicts heart disease more strongly than cholesterol

What a boatload of crap.

> Statins can be beneficial in patients who have already suffered heart attacks. Cholesterol lowering is not the reason for the benefit of statins. If it was, lowering cholesterol via any means should have produced the same benefit, but it doesn’t.

What a blatant lie! Ppcsk9 inhibitors have produced excellent results, even better than statins.