@happy-kitchen-89482 Before I document the coursier stuff, here is an example which should be simple enough:

[resolver]
resolver: coursier

[coursier]
fetch_options: [
    # Specify maven repos
    '-r', 'https://<repo1>',
    '-r', 'https://<repo2>',
    '-r', 'https://<repo3>',

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

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

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