do you know about Highwaytools, you can find it on github what does it do and on what server is it mainly used on?
Highwaytools is a plugin for the Minecraft modded client called Lambda. It is made to help the player create tunnels and bridges quickly and without effort. It can be considered as a cheating tool as it can be used on multiplayer servers to gain an unfair adventage over the players who have to build those structures manually, and it contains some features specifically made to bypass anti-cheats on some servers.

It is mainly used on anarchy servers such as 2b2t, where cheating tools like this are common place.