This folder should contain 3 files. Lavalink.jar : The Java server. application.yml : The configuration file which allows to edit the configuration of the node. run.bat : A script for Windows user to start your node quickly by launching it.
Set an opened port at line 2. Default port is 2333. For instance, if you already opened a port for a Minecraft server (port 25565), and you're not using it anymore, you can use it here. Otherwise, you'll have to open a port and make it redirect to your computer. You can follow any tutorial on the Internet, like this one based on Minecraft Ports.
Set a password at line 5. Default password of Lavalink is youshallnotpass. This is roughly recommended to change it for something else.
On Windows, launch it with
On Linux , use
java -jar Lavalink.jar
A terminal showing "Lavalink" should open.
If a firewall pop-up asks for permission, accept to grant permission to Java to access public network.
She'll need to know your IP, your port and the password you have chosen in order to create a connection.
If you want to play local files, you can set local at line 17 to true in
=play full/path/to/your/file.mp3 will allow Watora to play your file.