Feature Flags: Rolling Out Changes Safely

Feature flags allow you to roll out changes safely. Example: - enable a new checkout flow for 10% of users - test new UI in staging only - disable a broken feature instantly ## Simple flag storage idea - flags table in DB - cached for performance ## Example usage ```php if (Feature::enabled('new_checkout')) { return app(NewCheckoutController::class)->index(); } return app(LegacyCheckoutController::class)->index(); ``` ## Flow ```mermaid flowchart LR A[Request] --> B[Check Feature Flag] B -->|On| C[New Feature] B -->|Off| D[Old Feature] ``` In the next tutorial, we will add audit-grade security practices for production.