(Quite alpha-ish, esp. since Hex Casting is not yet published on 1.21) Currently 0.0.1 is using build 20 of Hex Casting 1.21.1 (Which you may find a link to in the official Hex Casting discord server's announcements channel, @ ci.blamejared) A Hex Casting addon for Fabric and Neoforge

Adds a few new spells and items, as well as configuration options for making healthcasting more punishing

and some unfinished content for now... I had it mostly working on 1.20.1, but then I broke my dev env and switched to doing Fishcasting (which is done-ish!), and with aeronautics out, I decided to just do a 1.21.1 addon for this instead.

Very early testing version, with enough features that work reasonably well that I felt that it might be enjoyable for some as is.

Configurable enlightenment requirements (scroll required, great spells gated by scrolls)
Configurable healthcasting (recovery from resting, health lost, damage taken)
Patchouli book shows great spells patterns if a scroll for the great spell has been held (I was kind of miffed when I found out this wasn't a feature the first time around...)
Graph-based crafting spell (pretty neat! should be compatible with most shaped/shapeless-dervied recipes out of the box because of how I wrote it.)
Spell to dump the casting grid into a list. I need to balance it somehow because it's a little bit nuts.