Pass custom options to serializer?

[simonihmig]

Would you consider more freedom to customize the serializer, i.e. what gets passed as serializerOptions here. Maybe just another object you can pass that gets spread into serializerOptions?

My use case: I would like to use the transform function (see https://github.com/SeyZ/jsonapi-serializer#available-serialization-option-opts-argument) to convert a comma-separated list of values in a frontmatter attribute into a proper array in the JSON-API payload.