lessanvil

For the CLI see here

About

Lessanvil is a rust library to reduce a Minecraft: Java Edition's world size by deleting unused chunks. This works by looking at the InhabitedTime NBT-tag (see here for more information) of each chunk and deleting the chunk in case it's lower than user-specified value.

The docs are available here.

CLI

There's an offical CLI and docker image available. See here for more information.

lib.rs:

See execute for the entrypoint of this crate.