El Salvador’s recognition of Bitcoin (BTC) as legal tender has opened up new payment options for its citizens, with fast-food empire McDonald’s reportedly accepting payments in the cryptocurrency through Lightning Network.

Bitcoin is now officially legal tender in El Salvador, three months after the Bitcoin Law passed the country’s legislature.

Amid El Salvador preparing to officially enforce the country’s Bitcoin Law in early September, Salvadorans took to the streets to protest over the adoption of Bitcoin (BTC) as an official currency.

The idea that bitcoin (BTC, -2.8%) mining could subsidize and catalyze a greener electricity grid is already playing out.