SQLite insert schema does not include nullable columns?

export const products = sqliteTable(
  "products_table",
  {
    id: int().primaryKey(),
    name: text().notNull(),
    type: text(),
    sku: text(),
    externalId: text("external_id").notNull().unique(),
    price: text(),
    regularPrice: text("regular_price"),
    salePrice: text("sale_price"),
    manageStock: int("manage_stock", { mode: "boolean" }),
    stockQuantity: int("stock_quantity"),
  },
  (table) => {
    return {
      nameIdx: index("sku_idx").on(table.sku),
    };
  }
);

{
    name: string;
    sku: string;
    price: string;
    regularPrice: string;
}