{
  disko.devices.disk.sda = {
    type = "disk";
    device = "/dev/sda";
    content = {
      type = "gpt";
      partitions = {
        boot = {
          name = "grub";
          size = "1M";
          type = "EF02";
        };
        esp = {
          name = "ESP";
          type = "EF00";
          size = "500M";
          content = {
            type = "filesystem";
            format = "vfat";
            mountpoint = "/boot";
          };
        };
        root = {
          name = "root";
          size = "100%";
          content = {
            type = "filesystem";
            format = "ext4";
            mountpoint = "/";
          };
        };
      };
    };
  };
}