The Archive reminds me of ATLA's Library of Wan Shi Tong, which must be based on something else in mythology, but the wiki doesn't seem to know and neither do I. Which is to say, good job evoking a myth which may not even exist in the first place!
As a player, I am so tempted by the prospect of alternate uses for the relics, as receiving Foundational Relics may be frustrating if the players can't use them to meaningfully progress their goals or the goals of the Village, not that every item needs that kind of use. I know that is more on Warden while playing, but I think I'd rather have one d10 relic table with slightly more utility over a table and a half with the important stuff being uninteresting to the Villagers and PCs.
It would also be interesting to have a sentence on how the Villagers would react to Curator-slaying PCs. The fact that it is easy to get invested in the Villager culture is a credit to the writing! Bravo (or Brava, or the gender-neutral Benissimo)!