# usage: nix-instantiate --eval --json --strict example/config.nix | jq .
{
  type = "devices";
  content = {
    sda = {
      type = "table";
      format = "gpt";
      partitions = [
        {
          type = "partition";
          part-type = "ESP";
          start = "1MiB";
          end = "1024MiB";
          fs-type = "fat32";
          bootable = true;
          content = {
            type = "filesystem";
            format = "vfat";
            mountpoint = "/boot";
          };
        }
        {
          type = "partition";
          part-type = "primary";
          start = "1024MiB";
          end = "100%";
          content = {
            type = "luks";
            algo = "aes-xts...";
            name = "crypted";
            keyfile = "/tmp/secret.key";
            extraArgs = [
              "--hash sha512"
              "--iter-time 5000"
            ];
            content = {
              type = "lvm";
              name = "pool";
              lvs = {
                root = {
                  type = "lv";
                  size = "10G";
                  mountpoint = "/";
                  content = {
                    type = "filesystem";
                    format = "ext4";
                    mountpoint = "/";
                  };
                };
                home = {
                  type = "lv";
                  size = "10G";
                  content = {
                    type = "filesystem";
                    format = "ext4";
                    mountpoint = "/home";
                  };
                };
              };
            };
          };
        }
      ];
    };
  };
}