{ disks ? [ "/dev/sda" ], ... }: {
  disko.devices = {
    disk.main = {
      device = builtins.elemAt disks 0;
      type = "disk";
      content = {
        type = "table";
        format = "gpt";
        partitions = [
          {
            name = "boot";
            start = "0";
            end = "1M";
            flags = [ "bios_grub" ];
          }
          {
            name = "ESP";
            start = "1M";
            end = "512M";
            bootable = true;
            content = {
              type = "filesystem";
              format = "vfat";
              mountpoint = "/boot";
            };
          }
          {
            name = "nix";
            start = "512M";
            end = "100%";
            part-type = "primary";
            content = {
              type = "filesystem";
              format = "ext4";
              mountpoint = "/nix";
            };
          }
        ];
      };
    };
    nodev."/" = {
      fsType = "tmpfs";
      mountOptions = [
        "size=2G"
        "defaults"
        "mode=755"
      ];
    };
  };
}