This is the Legacy Version of The Shulker Archives. All entries contained here grow more outdated (and possibly even broken) by the day, and exist purely as a reference point for the pre-Map version of the Archives.
Website to archive Shulker Kit NBT Data
https://kadthehunter.github.io/ShulkerArchives/
Unless you have an interest in opening a PR or reporting a bug, there's really not much here for you tbh.
If you're looking to submit a kit/item/book, please contact Kad in Discord DMs @kaddicus