config/config.json

{
  "server": {
    "bind": "0.0.0.0",
    "port": "9867"
  },
  "instanceDefaults": {
    "mode": "headless"
  },
  "multiInstance": {
    "strategy": "simple"
  },
  "browser": {
    "binary": "/usr/bin/google-chrome"
  }
}