Feature Flags: The Kill Switch Every Startup Needs

Ali Nemati3 days ago32 sec read8 views

Feature flags enable runtime control of feature exposure without code deploys. They differ from toggles in being long-lived and externally managed. Use release, experiment, ops, and permission flag types for various use cases. OpenFeature is a vendor-neutral SDK standard allowing free provider swapping. LaunchDarkly offers advanced features like targeting rules and percentage rollouts with a PM-friendly interface. Follow best practices such as semantic naming, providing default values, tracking telemetry signals, and cleaning up after full rollout to avoid technical debt.

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