Void Teleport has an Discord Server to help you with setup.

Info

Teleports a player automatically back to specified point, after the player falls into the void.

Features

• Supports custom dimensions
• Per-world spawn points
• Global spawn point
• Uses storage to store locations instead of scoreboards
• Does not round-up the co-ordinates hence teleports to precise location.
• Multiplayer support
• Does not use entities for teleporting players
• Supported versions: 1.20.2-1.20.5

Installation

To install this datapack you simply download the zip and put it in your "datapacks" folder inside your desired world.

Basic setup:

• Run the command /function vtp:admin to get access to datapack features
• Run /trigger VoidTP.SetSpawn to set the spawn
• Modify the minimum teleport height by using /trigger VoidTP.MinHeight set {value}
• You've successfully set your first spawn point

Reporting bugs on GitHub will be appreciated 👍

Also try: AutoTree

Videos

Here's a small tutorial video that my friend made: