Carefully manage configuration options, including feature flags, to balance flexibility with maintainability: 1. **Use feature flags strategically:** - Put new features behind feature flags for gradual rollout - Once fully deployed, remove the flag and make the feature standard - Avoid feature flags when default behavior naturally preserves backward compatibility ```go // Good: Feature flag for gradual rollout if featuremgmt.AnyEnabled(&featuremgmt.FeatureManager{}, featuremgmt.FlagNewFeature) { providers = []app.Provider{playlistAppProvider, shortURLAppProvider} } else { providers = []app.Provider{playlistAppProvider} } // Better when possible: Backward compatible default behavior options := getCookieOptions() if featuremgmt.AnyEnabled(&featuremgmt.FeatureManager{}, featuremgmt.FlagPanelExporterCookieDomain) { // Only modify behavior when flag is enabled } else { options.Domain = "" // Maintains previous behavior } ``` 2. **Limit configuration points:** - Start with fewer configuration options and add more only when needed - Remember that once a configuration option is exposed, removing it may break user workflows - Consider using appropriate metadata for feature flags (like `HideFromDocs: true` for internal features) 3. **Reuse existing configuration parsers** rather than creating new ones to ensure consistent behavior across the application.