All configuration options are set to values intended by the redefinitions. For changing or disabling the values set the corresponding options to the preferred values or to the value that disables the redefinition.
The configurations can be set in the global
minetest.conf file as well as in a world-specific configuration file located at
./worlds/worldname/_redef.conf. Global settings overwrite the given defaults and world-specific settings overwrite the global settings and defaults.