Hypertune, in collaboration with Vercel, offers a type-safe and powerful solution for feature flags, A/B testing, and app configuration tailored for Next.js, designed to operate with near-zero latency at the edge. Traditional feature flag systems relied on SDKs that preloaded flag logic to minimize network latency, but this approach struggles with the rise of serverless and edge computing where backend instances are short-lived. Vercel's Edge Config, a JSON store optimized for instantaneous lookups, addresses this challenge by enabling instant SDK initialization on transient serverless instances. The integration supports a seamless experience for developers using Next.js, eliminating the need for separate SDKs for server and client environments, thus preventing UI flickers and maintaining synchronization. This modern approach reflects the shift in web development towards integrated data flows and shared codebases, ensuring accurate analytics and robust A/B testing within the evolving landscape of web applications.