{
  "app_name": "MyService",
  "version": "2.1.0",
  "debug": true,
  "database": {
    "host": "db-old.example.com",
    "port": 5432,
    "name": "mydb",
    "pool_size": 10
  },
  "cache": {
    "enabled": true,
    "ttl": 300,
    "backend": "redis"
  },
  "logging": {
    "level": "DEBUG",
    "file": "/var/log/myservice.log"
  },
  "feature_flags": {
    "new_ui": false,
    "beta_api": true
  }
}
