Thanks for the information.
I added a config file at the root and it helps disable the official Source.
But when you have two Nuget.Config files with the same source name, it displays duplicate values in the Nuget Manager and Options window.
This also does not stop the users from enabling the official source again.
Also I noticed in the Nuget Source code the URL has been hard coded in the
public static readonly string DefaultFeedUrl
Why don't we have this Url value configurable so users can change the DefaultFeedUrl value if needed?
Do we already have an option to change this value?