{ fetchFromGitHub }: fetchFromGitHub { owner = "PrivateStorageio"; repo = "PaymentServer"; rev = "2ca189c51a5314eb476d1866d28ee483701af6f5"; sha256 = "1sb53lvi6alwdjhx4cv1gg7ywkqf18n1zjgdj3nigq3vjwxhdcpb"; }