Command Line Arguments

join/-join - specify a kag://host:port/[password] to autojoin (client only)
noautoudpate - don't auto-update
nolauncher - no launcher
autostart file1.gm - specifies auto-start file to run game with
autoconfig file2.gm - specifies auto-config file to run game with

You can create copies dedicated_autoconfig.gm and dedicated_autostart.gm and run server (or client) using them instead of default ones to prevent auto-update from overwriting those files.

There are more, this page will be updated