Description
Adds a new functional block to the game: a repair station. The station automatically repairs 1 piece of armor/tool using flint. 1 flint is used for 80 seconds, regenerating 80 durability. The station supports hoppers.
Crafting recipe: 
Configurable via config and mod menu, supports adding any modded "fuel" and changing it's duration etc.
I hope this mod will make Mending enchantment less necessary for your survival!