Hello world of Jitsi in large scale meeting (about 400 participants)

Hi, I want to install a jitsi in my own VPS server which has at least 32 GB ram and 20 core CPU and 100GB SSD.

Could you help me the guideline of the proper installation?
Also, could you help me if I create another VPS with the same or lower config setting and install another jitsi to scale the first server into the integrated two jitsi server to handle one meeting with at least 400 participants in about 6 hours.