This article discusses the importance of feature management in software development, particularly in controlling feature visibility and avoiding unexpected surprises. Feature management is a technique that allows teams to enable, disable, or modify features dynamically without changing code or redeploying applications. It typically uses feature flags, which are configuration-based switches that control whether a feature is active for a specific user, group, or environment. The article highlights the advantages of feature management, including gradual rollouts, A/B testing and experimentation, instant rollbacks, and targeted releases. LaunchDarkly is introduced as a feature flag management platform that allows teams to control feature releases dynamically without redeploying code. The article explains how LaunchDarkly can be integrated into an application through various approaches, including SDK integration, API-based integration, Relay proxy, and infrastructure and CI/CD integration. A specific approach is chosen and explained, which involves implementing a feature management handler unit class in a shared repository to handle the core responsibilities of working with LaunchDarkly. This approach provides several advantages, including centralized SDK key management, optimized client initialization, flexible feature flag evaluation, and low latency and high availability. The article concludes that this architecture allows for efficient management of feature flags across both backend and frontend, ensuring a consistent, scalable, and secure integration with LaunchDarkly while maintaining low-latency performance for end users.