What does this mod add?

This mod adds many challenges I've made and packs them together in a single mod
Air Challenge -> kills you whenever the block at your coordinates is air
Hunger Challenge -> prevents you from increasing your hunger bar level or saturation
Light Challenge -> damages you the equivalent of the light level at your block, this challenge has a "pure" version which is to remove the damage decrease that has been added to allow the player to not die when not underground
Xp Challenge -> gaining xp kills you
...

How can it be configured?

Simply open the Mod Menu and look for the mod, open the config and enable or disable the challenges