The server support various minimaps. Here's a guide for getting Fabric, ZaerVoxelMap, and OptiFine setup.
fabric-loader-1.. from the available versions
Great, now Fabric is working. We can move on to installing the mods.
.jar files in the mods folder.
That's it! You should now have a working minimap installed.
Note: if you have previously installed VoxelMap you'll need to navigate to the %appdata%/.minecraft/mods folder and remove all but the latest version, and possibly the data folder it has.
.jar files into the mods folder
Note: if you have previously installed OptiFine you'll need to navigate to the %appdata%/.minecraft/mods folder and remove all but the latest version.
With OptiFine installed it's possible to smoothly run high resolution texture packs or apply custom shaders to make your Minecraft more visually appealing.