Liquid — Bounce

: Obtain a Book and Quill (writable book) and place it in your hotbar.

: If successful, the server will kick you with an error. Upon re-joining, your items should be duplicated—appearing both on the ground and in your inventory. Automatic Paper Production Liquid Bounce

For advanced users, newer versions of LiquidBounce also include specialized settings for and Scaffold to bypass anti-cheat systems like Vulcan. How to Use the Paper Dupe Exploit in Minecraft 1.20.6 : Obtain a Book and Quill (writable book)

: Open your chat and type the command .t Dupe to toggle the duplication module. Liquid Bounce

: Use a hopper minecart running underneath the dirt to collect the items and deposit them into chests.