In the app/config/db-adapters.js file you will register all the JugglingDB adapters you'll be using in your app

This file has the following spec:

{
    adapterOneName: {
        lib: require('adapterOne'),
        adapterOption1: '',
        adapterOption2: '',
        adapterOption3: '',
        adapterOptionN: ''
    },
    adapterTwoName: {
        lib: require('adapterTwo'),
        adapterOption1: '',
        adapterOption2: '',
        adapterOption3: '',
        adapterOptionN: ''
    }
}

The options depends of the adapter you'll use, here you can see all adapters JugglingDB has.

Don't forget to install the adapter you want to use in your project and add it to the package.json file !

To use the built-in adapters of JugglingDB, just pass their names in the lib option.