afatihakcan/ROS-Path-Follower ? reverse-engineered prompt

Build me a ROS based path following robot project in Python that uses OpenCV to track a path and a PID controller to stay on it.

I want it to drive smoothly, speed up when the path is clear, slow down when needed, and handle acceleration and deceleration without jerky motion. Include a simple launch setup so I can start everything easily, plus whatever scripts and supporting files are needed for a basic simulation or demo. If it helps, you can use current ROS and OpenCV docs online while you build it.

Please make the project feel complete enough to run and test right away, with a clear example environment and a visual way to see the robot following the path.