{
  "host": "localhost",
  "port": 80,
  "mongodb": "MONGO_URL",
  "public": "../public/",
  "auth": {
    "token": {
      "secret": "FEATHERS_AUTH_SECRET"
    },
    "local": {}
  }
}

{
  "host": "HOST",
  "port": "PORT",
  "mongodb": "MONGO_URL",
  "public": "../public/",
  "auth": {
    "token": {
      "secret": "FEATHERS_AUTH_SECRET"
    },
    "local": {}
  }
}

Use variables as host and port.
Use variables as host and port.

