See
https://github.com/josemigallas/mobile-docs/blob/4294df0bd0654c8a92a6be66b30ab87bbc7525c3/modules/ROOT/pages/_partials/generic-obtaining-the-mobile-sdk-config-file.adoc

This is an include and it makes things confusing when it is rendered as part of metrics, configuring devl env page, {{ configuring-dev-env-metrics.adoc }}

It says this:

Locate this file in your application project and import it using require.

const aerogearConfig = require("./mobile-services.json");
Alternatively you can create a JavaScript object and use directly:

const aerogearConfig = /* Paste here the contents of the clipboard */;

but for metrics we don't have to import the json file.

All what's necessary is importing that file in application level and feeding it to {{ app.init }}.