mod doesn't need fabric api
i decided to make a mixin that changes the unbreaking enchantment to make the item actually unbreakable.
just apply the unbreaking enchantment to whatever item you can apply it to and it would probably work.
the config can be changed to make the last level of the unbreaking enchantment only make the item unbreakable or to disable/enable mending incompatibility, the config file is located in config/actuallyunbreaking.json or alternatively if you are using mod menu and cloth config you can use the config gui ingame!
this mod is server side only.