Mending in archaeology

The Mending enchantment should be related to archaeology.
Its primary method of acquisition would be through Trail Ruins, making them highly sought-after structures.
It would also be rare loot found in stronghold libraries, encouraging exploration instead of just going directly to the End portal.
And if it's desired that it be renewable, it could be a very rare trade from the Wandering Trader, making its visits more anticipated by players who want more books or don't want to explore.