cereal.jsx

const Cereal = ({ items, ...otherProps }) => {
  const indexHalf = Math.floor(items.length / 2)
  const items1 = items.slice(0, indexHalf)
  const items2 = items.slice(indexHalf)
  
  return (
    <>
      <ul>
        {items1.map(({ to, label }) => (
          <li key={to}>
            <Link to={to}>{label}</Link>
          </li>
        ))}
      </ul>
      <ul>
        {items2.map(({ to, label }) => (
          <li key={to}>
            <Link to={to}>{label}</Link>
          </li>
        ))}
      </ul>
    </>
  )
}