I am trying to use environment variables in my nuxt 2.15.8 project for development and production. First i used .env file and then i saw in the documentation that i can use runTimeConfig as best practice.

So i tried to use:

// nuxt.config.js
export default {
  publicRuntimeConfig: {
    apiUrl: process.env.API_URL,
    bucket: process.env.BUCKET,
  },
  privateRuntimeConfig: {
    passwordEncryptKey: process.env.PASSWORD_ENCRYPT_KEY,
  }
}

And then i my vue files this.$config.apiUrl For publicRuntimeConfig it works and i can see the variables but for privateRuntimeConfig it doesn't work How can i use privateRuntimeConfig in my project? for example i need to use them inside the "methods" property or in the "data" property but without exposing them to the browser? Or should i use some other way instead of privateRuntimeConfig?