geico-sandbox/flagsmith

Flagsmith is an open-source feature flagging and remote configuration service that enables teams to control feature releases, run A/B tests, and manage application settings without redeploying code. It provides SDKs for 15+ languages and frameworks, supports segmentation and user targeting, and can be self-hosted or used via their hosted platform. This project is ideal for development teams seeking granular control over feature rollouts and configuration management across web, mobile, and server-side applications.