This mod ports the quickplay command line arguments added in 1.20 to earlier versions.
Logging has not been included, because it has remote logging stuff, which requires networking stuff, which will definitely not be cross version compatible.
Most people want quickplay for these simple arguments, which are implemented:
--quickPlaySingleplayer "New World"--quickPlayMultiplayer "localhost:25565"--quickPlayRealms "1234"
If multiple arguments are used, the first one will be read and the rest will be ignored.