Update : all what I need know how to use cloudflared?

I followed this:

https://colab.research.google.com/github/MichaelBosello/carla-colab/blob/master/carla-simulator.ipynb

In order to install carla simulation on google colab

first: I don't know what the programs are in the requirments field. Do I really need to install them on my pc or not? requirement field

second : After running all cells :

This message appeared to me : error msg and carla simulator does not open!

third : all files appears in directory of colab after installed them but when I try to run a file it prints that : no module found

I want to understand a little bit about vnc and do I really need it here?how? how to solve problems I showed above?

or If you can make this notebook work as it is I will be very thankful to you