To use this specific .jar file, you generally need the following: . Fabric Loader (version 0.14.6 or higher recommended).
If you actually want a safe dupe mod for 1.20.1 Fabric, you need to compile it yourself or obtain source code from trusted exploit communities. Some legitimate (though unethical) examples include: file name dupetriggermodfabric1201jar
: Indicates it requires the Fabric Loader and Fabric API to function. 1201 : Represents Minecraft version 1.20.1 . To use this specific