Blockchain firm Bitfury has developed a coffee vending machine capable of connecting to the Lightning Network, a second-layer transaction protocol designed to make bitcoin more scalable by processing transactions off the main bitcoin blockchain. As a result, the vending machine can accept bitcoin payments without charging high fees or requiring long transaction times, according to a press release. LightningPeach, the team behind the new vending machine, added a device capable of joining the network to a coffee machine that already sported some built-in smart components. The device is composed of a small Raspberry Pi computer and a unique circuit board designed by the team to process transactions.