Jitsi meet server requirement

Hi,

I am want to install JITSI-MEET physical server as well cloud computing what is configuration of server we buy and 50 member to connected in video conference meet including,video recording.it is not essential but some times we need video conference enable record options depends upon user need so you can say that of kind of machines.

configuration regarding physical server and cloud computing please soon.

CORE OF SERVER(CPU)
OPERATING SYSTEM(UBUNTU)
RAM
HARD DISK
INTERNET BANDWIDTH
Thanks in advance
i waiting your answer.