Let someone create such mod - or give link if it already exists.
Combining diamond items for repairing is pissing me off. I can't find diamonds any more. I have mending on everything. I'm building large ghast farm, removing tons of netherrack and my pickaxe is quickly almost broken. Then i have to fight for 1 hour in my mobs farm to repair my pickaxe with mending and unbreaking III.
I would be much easier if we could pay with exp levels, emeralds or lapis lazuli. I would go to a village and use e. g. weaponsmith for repairing weapons or librarian for repairing enchanted items.
Mojang staff will quickly reply with "NO" so let someone create such mod for 1.14.4.
Introducing a new way to repair your equipment with experience points and jewels.. With the A.E.R.S. you simply put the item to be repaired in the repair slot, and the gem in the other slot. The gem slot can take a small variety of items including emeralds, lapis lazuli and experience tokens you can get by having more that one experience level and click the "Store XP" button. You can eat to experience token to regain the XP.