code: func (e *Empire) Config(app *App) (*Config, error) {
  	tx := e.db.Begin()
  
  	c, err := e.configs.Config(tx, app)
  	if err != nil {
  		tx.Rollback()
  		return c, err
  	}
  
  	if err := tx.Commit().Error; err != nil {
  		return c, err
  	}
  
  	return c, nil
  }
docs: // Config returns the current Config for a given app.