wtf is fastify-vite?

Fastify Vite is a plugin that connects two popular web development tools, Fastify, a lightweight server framework, and Vite, a tool for building fast front-end applications. Its main job is to let you serve your Vite-powered front-end directly from your Fastify server, so you don't need to run a separate server for the front-end and another for the back-end. Everything works together in one place. At a high level, the plugin runs Vite's development server as part of your Fastify application. This means when you're building your app and making changes, the front-end updates live through the same server that handles your back-end logic. It also automatically serves the finished, built version of your Vite app once you're ready to deploy. You can customize how things connect through configuration hooks, which is handy if you want to wire up routing between the front-end and back-end in a specific way. This would appeal to developers who already use Fastify for their server and want to build or integrate a front-end using Vite without managing two separate systems. For example, a small team building a web app might use this to keep their API and their user interface running on a single server, simplifying deployment and reducing moving parts. It could also suit someone who wants a straightforward setup for a full-stack JavaScript project without adopting a more complex framework. The README itself is brief and points to a full documentation site for details on configuration and advanced usage. Not much else is said about specific tradeoffs or architectural choices, so if you want to understand the deeper mechanics, the external docs are the place to go.