Paperspace setup on Mac

Hello friends,
Apologies for starting a new question on Paperspace set up, since could not find relevant information on the earlier threads. I have very basic questions, which can help me to start with;

First, where can I find the updated instructions to set up the Paperspace account and link to fast ai, especially for Mac.

Second, is it okay to use the Community Notebook(free version with machine P5000). Or for better performance, is it recommended to go for the paid version?

Help is appreciated.