> how's nvidia on linux these days?

Much better than it used to be, but I don’t use NVIDIA, so take that with a grain of salt. 

 There is always a solution to any problem. I usually don't carry cash because, let's face it, the coins are heavy. I might have a few bills here and there but so many places accept credit cards nowadays, having an assortment of visa and master card, debit and credit plus the option to book fares and hotels online, is usually good enough for the first few days. Afterward I can still go to the ATM and get those bills if need be. 

 Tried it by buying through an online store but more than a 10% fee is a lot if you make little. Payed $50.67, received $44.98 in sats.