Initialise persistant value on instantiable class based on appconfig

Question

How do I create a persistant value on a class that stays the same each time it is created?

public record StorageUrl
{
    public string FileName { get; set;}
    public string BaseAddress {get; set;}
    public string FullPath => $"{BaseAddress}/{FileName}";
}

I would like the value of BaseAddress to come from a config file.

My current apporach is to inject IOptions<BaseAddressSettings> each time I want to initialise a StorageUrl is there a way to set the BaseAddress without having to inject IOptions each time.

I would like to initalise the class like

var storageUrl = new StorageUrl { FileName = "fileName" };

I am currently initalising like so

var storageUrl = new StorageUrl 
{ 
   FileName = "fileName", 
   BaseAddress = options.BaseAddress
};