Brazil's government-run payments system has become dominant

I'm a Brazilian. Everything here can be paid through pix. It's very convenient, fast reliable and, for a country like ours where walking on the streets with money is a risk, safe.

There's only one reason I don't use it: there's no FLOSS app (AFAIK) to use it.

Something as common as the dominant payment system should not depend on proprietary software.

> Something as common as the dominant payment system should not depend on proprietary software.

Name one dominant payment system worldwide that doesn't? Banks are proprietary, credit cards are proprietary, paypal, crypto is all proprietary.

> crypto is all proprietary

What?

I think a steelmanned version of their comment is that crypto apps are proprietary, which I think is mostly true. There are open source apps, but most of the big ones are all proprietary.

I still don't really get this. Do you mean that frent-ends have proprietary code?

Contracts on-chain can be slightly inscrutable in their bytecode format, but it's pretty uncommon for smart contracts to not be published with source code and a verifiable build.

Example, picked randomly from a transaction in a recent block: https://etherscan.io/address/0x388c818ca8b9251b393131c08a736...