The sample config.yaml is at testdata_remotejudge.md.
If username or password field is empty, users have to use their account to submit.
You can write a comment in your code in the format <j:optionName=optionValue> to pass options.
Until now, username password token language options are valid.
Login to your account using <j:username=anotherUsername> <j:password=anotherPassword> or just submit <j:token=yourToken>.
Sepecific Your Language using <j:language=languageName> (If remote oj supports).