After running the game once with this mod installed (generates the config file) go into there & change the Effect Multiplier & Pickup Multiplier settings to change how powerful the item effects are(Effect) & how many you get every time you grab a powerup from a chest(Pickup)
Note that as of right now the caps for most items effects are still in place so grabbing 1 million orange juice won't make a difference from a thousand or hundred (You will be able to disable them in the next update tho)
This mod works standalone but if you have gg1kommands base also installed you can use chat commands to change the config: to change Effect Multiplier in game do any of "powe", "powerupEffect", "powerupEffectMultiplier", or "powerupPower" then a number to change Pickup Multiplier in game do any of "powm", "powp", "powerupMultiplier", "powerupPickupMultiplier", "powerupPickup", "powerupAmount", or "powerupAmmount" then a number
If you are installing this manually, do the following
plugins folder into <GameDirectory>\Bepinex\plugins.