HERAT: In the middle of a bazaar in western Afghanistan, Arezo Akrimi took out her smartphone and, after a few taps of the screen, changed some cryptocurrency for a bundle of hard cash.Arezo, 19, is one of a hundred students in Herat who have been receiving around US$200 a month in cryptocurrency since last September thanks to the American non-governmental organisation Code to Inspire.This sum, which she converts at a bureau de change into afghanis, is crucial for her rent and to help feed her family of six.Since the Taliban returned last August, Afghanistan's economy has virtually collapsed, and the country is in the grip of a crisis caused by the seizure of billions of dollars of assets held abroad.But digital currencies and their decentralised architecture, impervious to international sanctions, are allowing a handful of young Afghans to avoid the worst of the crisis."It was very surprising for me to learn that this could be used in Afghanistan," Arezo told AFP. "It was really helpful."Code to Inspire was founded to teach computer programming to women in Herat, but its high-tech approach is now also helping students get funds in the economically deprived nation.Bank transfers to Afghanistan are almost impossible currently, to prevent funds from falling into the hands of fundamentalists.But even those with money in a bank struggle to get it out - individuals are limited to withdrawing the equivalent of US$200 a week, and businesses US$2,000.Customers have to queue for hours even for those transactions.Cryptocurrency transfers have allowed the NGO to circumvent these obstacles while ensuring that each donation gets to those who need it most, founder Fereshteh Forough told AFP."Crypto is an incredible way to overcome all