How to identify variables in the input datasets ?

When passing an input dataset, osnet is expecting variables to be named with its own convention.

So, how do we make sure osnet will be able to identify variables in the input datasets ?

Using CF convention would be easy to implement (id variables using standard_name attribute)

But it's very likely that user inputs won't be following CF, so should we have an option to pass in a dictionnary mapping for the variable names ?