The mod is about potion effects. It only add 3 items :

The "Magical stone" : this item can store (by a right click) ALL your active potion effects (except blacklisted ones) , to use them later. 2 uses.
The "Infusing ring": required to craft the infused ring.
The "Infused ring": Crafted with an infusing ring and a magical stone in an anvil. It provide you permanent effects from the magical stone (only 1 by default in config file).

1.16.5+ versions needs Curios Api

For devs

Since 1.0.5.

You can use IMC to blacklist your potion effects. (ex: InterModComms.sendTo("infusedring", "blacklist", effectIds); Where "effectIds" is a Supplier to a collection of ids to blacklist. Supplier<Collection<String>>).

In config file , you can :

Change the maximum number of effects on one infused ring. [By default : 1]
Change the maximum level of effects on the infused ring. [By default : 4]
Change the experience level cost for the craft of the infused ring. [By default : 38]
Add potion effects in the blacklist (by potion id). (By default : ["minecraft:absorption","minecraft:health_boost"])
Add effect categories to the blacklist. (By default : ["HARMFUL"])