I heard that the chest per chunk limit wasn't working on the server and thought that would be a good practice plugin to make. For those following my dev journey, this plugin uses async programming and persistent data containers both from Butter's list of things developers should know. This plugin can also limit any other type of block to whatever limit you want to set. SaberSupe/BlockLimiter: Spigot plugin to put a limit on number of a block in a chunk (github.com)