Business in the front, party in the back: creating customized user experiences using Fastify JS and LaunchDarkly

This tutorial demonstrates how to use LaunchDarkly and Fastify to provide a customized user experience based on the users' email addresses. It covers setting up a development environment with Node.js, installing dependencies, configuring credentials, creating segments and flags in LaunchDarkly, serving static pages from Fastify, and using LaunchDarkly flags in a Fastify application. The tutorial also explains how to target different user segments based on their email addresses and provides additional resources for learning more about LaunchDarkly feature flags.

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