This installer will set a server instance up for you. Just answer everything it requieres along the installation and you should be good to go. Please note this script has been created and tested on Ubuntu 18.04 (The version the official medieval server runs on), so there is absolutely no warranty it'll work on outdated nor versions above the previously mentioned one.
First of all, clone this repo on any directory of your desire, and navigate into it.
cd Installer/
Then, just run the setup.sh and everything from that point on should be pretty straight forward and somewhat friendly.
./setup
When running some tests, I was getting some weird "bad formatting" issue. Perhaps using this following command could help you out:
dos2unix test.sh