Progenitor

Always create a backup of your world before use to avoid potential issues!

For world pregeneration, use the /pregen command with the following parameters:

• radius (Int) - generation radius in chunks
• dim (Int) - dimension identifier (for example: 0 for Overworld, -1 for Nether)
• here/spawn - the 'here' option generates chunks around the player executing the command, while 'spawn' (default) - around the dimension spawn point

Command usage example: /pregen 50 here 0 - will generate chunks within a 50-block radius around the player's current position in the Overworld.

To stop the generation process, use the command /pregen stop.

Important note: when using through the server console, you must explicitly specify the dimension (dim parameter), the 'here' option is not available in this case.