I want to implement a single object model in my express js and mongoose app backend.

right now i have this, how do i make it be only and only 1 object. it should not create any more than 1 data in this tabel

const mongoose = require("mongoose");

const LayoutSchema = new mongoose.Schema({
 aboutText: {
  type: String,
  trim: true,
  required: [true, "Please provide information about us."],
  maxlength: [1000, "About text should not exceed 1000 characters."],
},
 contactText: {
  type: String,
  trim: true,
  required: [true, "Please provide contact information."],
  maxlength: [1000, "Contact text should not exceed 1000 characters."],
},
    
 // Add more fields as needed
});

// Create a static method to ensure only one document exists in the collection
LayoutSchema.statics.findOneOrCreate = async function findOneOrCreate() {
 let layout = await this.findOne();
 if (!layout) {
  layout = await this.create({});
 }  return layout;
};

module.exports = mongoose.model("Layout", LayoutSchema);

Thank you in advance

i dont know how to do it and i haven’t found any good document on this subject