Either use the nextube App with lutris, or:

513  export nextube=10.10.10.1
514  curl -d '' http://$nextube/api/ping
515  curl http://$nextube/api/firmwareVersion
516  curl http://$nextube/api/hardwareVersion
517  curl http://$nextube'/api/file/download?path=/config.json'>nextube1.json
518  vi nextube1.json
520  curl http://$nextube'/api/file/df'
523  vi nextube1.json
526  curl -F file=@nextube1.json http://$nextube'/api/file/upload?path=/config.json'
527  curl -d '' http://$nextube/api/reset

nextube config with Linux