1_: {
 2  fileSystems = {
 3    "/" = {
 4      device = "/dev/disk/by-label/NIXOS_SD";
 5      fsType = "ext4";
 6      options = [ "noatime" ];
 7    };
 8  };
 9
10  swapDevices = [
11    {
12      device = "/swapfile";
13      size = 2 * 1024; # 2GB
14    }
15  ];
16}