On higher gauge theory relating to the Dirac monopole: Hank Chen, Florian Girelli, Gauging the Gauge and Anomaly Resolution [arXiv:2211.08549] Hank Chen, Hopf 2-Algebras: Homotopy Higher Symmetries in Physics, PhD thesis (2024) [pdf] On categorified Tannaka duality between quasitriangular 2-bialgebras and braided monoidal 2-categories: