Custom properties accessible to app code?

Hey there,

Currently working with OpenSearch/Dashboard version 1.2.

Is there documentation on how/where to set custom configuration properties (in opensearch_dashboards.yml for example) that can then be accessed in core/custom Dashboard plugins?

I’m currently developing on a Dashboard fork, and interacting with an external api via the embeddable core plugin and optimally would not need to hardcode the desired external api, but have not found a clean method to set and access a custom value for this use case.

Any insight would be appreciated.