Simples Nacional vs. Lucro Presumido: what is the tax regime for Brazilian companies with digital nomad partners domiciled abroad?

Digital Nomads' tax payments in Portugal: how do digital nomads pay taxes in Portugal?

DAA - Domiciled Abroad Account: can digital nomads domiciled abroad have this bank account in Brazil?

Paying taxes on digital nomads' copyrights: do digital nomads domiciled abroad have to pay income tax on the amounts they receive from Brazi