I see with the standalone jar, you can supply karate.env with -e
or --env
but can you also specify anything to define karate-config.js?
It will be looked for in the "root" folder by default.
To over-ride, this happens to be a little different, a Java System property:
https://github.com/intuit/karate/tree/master/karate-netty#karate-configjs
But I recommend setting a classpath, and karate should look for it there. If not, please do consider contributing or updating the docs.