How do I extract my world from this container? I am either going to move it to another raspi or to a dedicated server.

[couchpotatochip21]

I need to move my minecraft world from this container to another raspi or a dedicated server.

[itzg]

If you have your data volume mounted from a host directory, then just move that host directory. Otherwise, use docker cp command to transfer contents out of the anonymous or named volume.