A high performance and high compatibility 1.12.2/1.16.5/1.18.2 version
...As a result, server operators can build more complex environments that include both gameplay modifications and server management tools. CatServer is particularly useful for communities that want the flexibility of modded Minecraft while retaining access to established plugin-based server administration tools.
Modular Minecraft server plugin - commands, events, ...
This project gives you freedom to get a fully-customized plugin for CraftBukkit Minecraft servers. You choose what to include and build it up.
No more command collisions, no unnecessary memory and processor overhead on your server.