github.com/featurehub-io/featurehub (go): FeatureHub - cloud native feature flags, A/B testing and remote configuration service. Real-time streaming feature updates. Provided with Java, JavaScript, Python, Go, .Net, Ruby, Android and Flutter SDKs. 
Keywords: a-b-test|a-b-testing|cloud-native|feature-flag|feature-flagging|feature-flags|feature-flipping|feature-service|feature-toggle|feature-toggle-service|feature-toggles|feature-toggling|feature-toggling-api|features|remote-config|split-testing