Config Introduction

Inside your minecraft folder, in the config folder, and inside the thirst folder, you'll find the mod configuration files. The client.toml file contains all the things you can modify without changing files on the server (if you play singleplayer, ignore all this talk), and the common.toml contains things you have to tweak from the server (so same path but on your server's minecraft folder).

The item-settings.toml file is explained in detail in the Adding and editing items with hydration values page, and the keyword.toml in the Adding items with keywords page