[FEATURE] - There is not a library.

[portlek]

Description
There should be a pom.xml(maven project) for adding libraries automatically. Because we have to add external .jar file to the project and this situation cause little problem for people who're contributing to the project.

[CryptoMorin]

The only library is Bukkit tho. You should import the Bukkit/Spigot Jar itself not from maven.
Even if I gave you the pom file you still need to import Spigot for mojang authlib.

[portlek]

There is

<repository>
    <id>nms-repo</id>
    <url>https://repo.codemc.org/repository/nms/</url>
</repository>
<dependency>
    <groupId>org.spigotmc</groupId>
    <artifactId>spigot</artifactId>
    <version>1.15-R0.1-SNAPSHOT</version>
    <scope>provided</scope>
</dependency>

codemc gives us spigot jar with authlib.

[CryptoMorin]

I only use the original Spigot repository.