deployphp/deployer ? reverse-engineered prompt

Build me a PHP deployment tool for deploying web apps to remote servers.

I want a command line tool that helps set up servers, push new releases, and switch them over with zero downtime. It should make it easy to use with common PHP frameworks out of the box, with a simple way to add reusable deployment recipes for different kinds of projects.

Please include a clean PHP codebase, a few example recipes, and tests for the main behavior. Make the tool feel polished and practical, with sensible defaults and clear commands so someone can run deployments without having to wire everything together by hand.

If you need to check current docs or best practices while you build, go ahead and look them up online.