Get node-red to host video stream from esp-eye's

Hi there!
I am building a video stream service with 7+ esp-eyes that connects to a raspberry pi running node-red. Until now I have pretty much used this flow: (Another) ESP32CAM Multi-Client Streaming Display .

But I need the Pi to capture/get the video stream from the ESP's and host it locally, otherwise I suspect the esp-eyes to be overloaded with clients (20+) and crash or get super slow. So how do I do this. I hope I can do it on the Pi on node-red somehow, without changing the firmware on the esp's.

Thanks in advance!

You can look at this project and maybe get some ideas: