Config and Commands - Refactorio/RedMew GitHub Wiki
config.lua is located in the base directory of the scenario and can be used to toggle nearly every module in the scenario.
As a general rule, anything can be turned off by changing true to false. Anything off by default can be changed from false to true. Anything inside quotes ' or double quotes " are words that can be changed.
Everything should also have comments above the settings telling you what it controls/changes.