Nested joins / where on relation

const suborders = await db.query.subOrders.findMany({
    where: and(isNull(subOrders.kitchenId)),
    columns: {
      id: true,
      quantity: true,
    },
    with: {
      order: true,
      product: {
        columns: {
          id: true,
          performancePoints: true,
          prepTime: true,
        },
        with: {
          kitchens: {
            with: {
              kitchen: {
                columns: {
                  id: true,
                  performancePoints: true,
                },
              },
            },
          },
          kitchenDependentProperties: {
            columns: {
              kitchenId: true,
              productionPrice: true,
              purchasePrice: true,
            },
          },
        },
      },
    },
  });