There are libraries posted by Greasy Fork users that you can@require in your scripts. For other kinds of libraries you can@require, readGreasy Fork's policy on@require.
JSVLJS(Library) - JSVL, which stands for JavaScript Variable Locator, is a simple tool that allows you to execute code when a global variable is located.
CowJS FixedJS(Library) - Special creation library for "moomoo.io ". With it, you can create scripts faster, as well as draw in it without using the game code.
DiffJS(Library) - A lightweight, browser-compatible library for easy text comparison. Quickly detect and visualize changes between code snippets and text. Perfect for version tracking and change detection in web applications.