Contributed to a TTRPG ebook
Collaborated with other TTRPG designers
I contributed to my first rules agnostic roleplaying product, released by Realmwarp Media on DrivethruRPG.

You can find it here.

I created the pawnshop, aptly named Pawn's. Writing non-player characters, magical items, and adventure hooks without a rules system to build on was both freeing and difficult, in equal measure, but I'm happy with the results.
I'm especially fond of Book, the floating enchanted accounts ledger. It was based on a sentient magic item from a D&D product written in the 90s that I encountered through our regular game in 2018 or 2019 (I forget when it showed up).

There was less collaboration on this one, save for with project lead Sean dropping comments early in the work and our fantastic editor Ryan. I've worked with them again on two more as yet unpublished products.