Using modifications that provide an unfair advantage can result in bans from multiplayer servers.
Testing modifications in single-player mode is a common practice to ensure stability before attempting to use them online. General Installation Process for Minecraft 1.12 Versions : On Windows, use Win + R and type %appdata%\.minecraft . Download Wurst v6.32.1 MC1.12
On macOS, navigate to ~/Library/Application Support/minecraft . Using modifications that provide an unfair advantage can