fxa-profile-server/config/development.json

{
  "env": "development",
  "logging": {
    "fmt": "pretty",
    "level": "all",
    "debug": true
  },
  "img": {
    "driver": "local"
  },
  "customsUrl": "none",
  "serverCache": {
    "useRedis": false
  }
}