It's a small, jij-able library for creating server side holograms showing text, items or even entities. They can be fully interactive with different actions depending on where players click.
Add it to your dependencies like this:
repositories {
maven { url 'https://maven.nucleoid.xyz' }
}
dependencies {
modImplementation include("eu.pb4:hologram-api:[TAG]")
}
Next you just need to create instance of hologram (WorldHologram/EntityHologram),
set every element and call hologram.show()
. For example code see Test Mod