Currently [Express](https://expressjs.com/) and [Zod](https://zod.dev/) is baked into the framework. Should we decouple them and allows developer to use: - [Koa](https://koajs.com/) or [Fastify](https://www.fastify.io/) for server - [Typebox](https://github.com/sinclairzx81/typebox) for request validation **Pros** - Flexibility **Cons** - Hugely increases the complexity of Zephyr
