Found on the MoHP forum https://www.hpmuseum.org/forum/thread-23526-post-203634.html#pid203634
The article "A Hyper-Catalan Series Solution to Polynomial Equations, and the Geode"
N. J. Wildberger &Dean Rubine
Pages 383-402 | Received 27 Dec 2023, Accepted 07 Jun 2024, Published online: 08 Apr 2025

can be found on https://www.tandfonline.com/doi/full/10.1080/00029890.2025.2460966#d1e13225