How do I Setup a Jamulus server

I found this guide from the developers: https://jamulus.io/wiki/Installation-for-Linux

It looks like Jamulus has Linux Server based instructions on their site as well. Specifically you'll want to look at the Running a “headless” server section, which provides instructions for systems running Ubuntu/Debian distributions using systemd. You can also find instructions for controlling recordings on Linux headless servers in their Tips and Tricks section.