Shit to check

Mini: "Optimize World Server Map": Figure out how to fill PaperWorldMap, it needs a dim key which doesnt exist anymore?
Mini: "MC-50319": fix if still works
Make sure the flat bedrock setting doesn't do anything stupid
Check DataBits foreach
lighting is bork (load chunk, fly away, come back, everything or parts are black)
chunk generation seems slow with a lot of it happening
Fix IDE Debug JVM Flag for new versions of minecraft
Check if PlayerEditBookEvent: https://github.com/PaperMC/Paper/pull/1751
The PlayerEditBookEvent is straight up not called anymore.
The method to call it must now be PlayerConnection#a(List<String>, int) (CB bug).
The item is presumably edited with the new page contents before it ever reaches this method?