Ultra-fast feature flags SDK for Python with instant $O(1)$ synchronous reads and real-time SSE updates. Features a resilient persistent disk cache for instant cold starts and a lightweight, non-blocking background architecture built for high-throughput production environments.

Ultra-fast, lock-free feature flags SDK for .NET with zero-allocation O(1) reads. Features real-time SSE updates, a resilient persistent disk cache for instant cold starts, non-blocking startup, and memory cap protection. Built for low-latency local evaluation with zero external dependencies.

Ultra-fast, lock-free feature flags SDK for Node.js and TypeScript with $O(1)$ in-memory evaluation. Features real-time SSE updates, a resilient persistent disk cache for instant cold starts, and a zero-dependency, non-blocking architecture built for high-throughput production environments.

Ultra-lightweight, flicker-free feature flags SDK for Angular 17+ with reactive Signals and instant $O(1)$ local evaluation. Features real-time SSE updates, a resilient persistent browser cache for seamless offline support, and a non-blocking standalone architecture built for zero-overhead application bootstrapping.

About Ultra-lightweight, flicker-free feature flags SDK for React and Next.js (App & Pages Router) with instant client-side evaluation. Features real-time SSE updates, a resilient persistent browser cache for seamless offline support and fast cold starts, and intuitive Hooks/Providers built for zero-overhead, responsive UI rendering.