{
  disko.devices = {
    disk = {
      main = {
        type = "disk";
        device = "/dev/sda";
        content = {
          type = "gpt";
          partitions = {
            MBR = {
              size = "1M";
              type = "EF02"; # for grub MBR, no UEFI on this system.
            };
            luks = {
              # Partial NixOS for my side.
              size = "300G";
              content = {
                type = "luks";
                name = "crypted";
                # disable settings.keyFile if you want to use interactive password entry
                #passwordFile = "/tmp/secret.key"; # Interactive
                settings = {
                  allowDiscards = true;
                  extraFormatArgs = [ "--type luks1" ];
                  # keyFile = "/tmp/secret.key";
                };
                # additionalKeyFiles = [ "/tmp/additionalSecret.key" ];
                content = {
                  type = "btrfs";
                  extraArgs = [ "-f" ];
                  subvolumes = {
                    "/root" = {
                      mountpoint = "/";
                      mountOptions = [
                        "compress=zstd"
                        "noatime"
                      ];
                    };
                    "/home" = {
                      mountpoint = "/home";
                      mountOptions = [
                        "compress=zstd"
                        "noatime"
                      ];
                    };
                    "/nix" = {
                      mountpoint = "/nix";
                      mountOptions = [
                        "compress=zstd"
                        "noatime"
                      ];
                    };
                  };
                };
              };
            };
	    encryptedSwap = {
		size = "16G";
		content = {
			type = "swap";
			randomEncryption = true;
			priority = 100;
		};
	    };
          };
        };
      };
    };
  };
}