{
  device1 ? throw "Set this to your disk device, e.g. /dev/sda",
  device2,
  ...
}: {
  disko.devices = {
    disk = {
      main = {
      device = device1;
      type = "disk";
      content = {
        type = "gpt";
        partitions = {
          boot = {
            name = "boot";
            size = "1M";
            type = "EF02";
          };
          esp = {
            name = "ESP";
            size = "500M";
            type = "EF00";
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot";
            };
          };
          swap = {
            size = "4G";
            content = {
              type = "swap";
              resumeDevice = true;
            };
          };
          root = {
            name = "root";
            size = "100%";
            content = {
              type = "lvm_pv";
              vg = "root_vg";
            };
          };
        };
      };
    };
      ssd1 = {
        device = device2;
        type = "disk";
	content = {
	  type = "gpt";
	  partitions = {
	    ssd1 = {
	      name = "ssd1";
	      size = "100%";
	      content = {
		type = "lvm_pv";
		vg = "ssd1_vg";
	      };
	    };
	  };
	};
      };
    };
    lvm_vg = {
      root_vg = {
        type = "lvm_vg";
        lvs = {
          root = {
            size = "100%FREE";
            content = {
              type = "btrfs";
              extraArgs = ["-f"];

              subvolumes = {
                "/root" = {
                  mountpoint = "/";
                };

                "/persist" = {
                  mountOptions = ["subvol=persist" "noatime"];
                  mountpoint = "/persist";
                };

                "/nix" = {
                  mountOptions = ["subvol=nix" "noatime"];
                  mountpoint = "/nix";
                };
              };
            };
          };
        };
      };
      ssd1_vg = {
	type = "lvm_vg";
	lvs = {
	  ssd1 = {
	    size = "100%FREE";
	    content = {
	      type = "btrfs";
	      extraArgs = [ "-f" ];
	      subvolumes = {
		"/ssd1" = {
		  mountOptions = [ "subvol=ssd1" "noatime" ];
		  mountpoint = "/ssd1";
		};
	      };
	    };
	  };
	};
      };
    };    
  };
}