e.g. ```[coursier] fetch_options: [ # Specify ...
# general
w
e.g.
Copy code
[coursier]
fetch_options: [
    # Specify maven repos
    '-r', '<twitter's repo url>', 

    # No default from public maven repo.
    '--no-default',

    # Concurrent workers
    '-n', '10',

    # jar,bundle,test-jar are the default
    # maven-plugin is needed for a special child
    '-A', 'jar,bundle,test-jar,maven-plugin,src,doc'
  ]