This guide helps you host your own Jitsi server. If you want to have a video conference without setting up any infrastructure, use https://meet.jit.si instead.
This document describes the required steps for a quick Jitsi Meet installation on a Debian based GNU/Linux system. Debian 9 (Stretch) or later, and Ubuntu 18.04 (Bionic Beaver) or later are supported out-of-the-box.