Add [uuid] to updateip command for players that haven't joined the server previously
/alwaysonline updateip <username> <ip> [uuid]

Add sponge support, through separate jar from: https://github.com/AshleyThew/always-online/releases

Added mongodb-loader support for mongo database storage
To use the mongodb save type you require the mongodb-loader plugin from: https://www.spigotmc.org/resources/mongodb-loader.124666
Follow instructions from here: https://github.com/AshleyThew/always-online?tab=readme-ov-file#mongodb-storage