The paper “Double Copy From Tensor Products of Metric BV*-Algebras“, co-authored by Leron Borsten (University of Hertfordshire), Branislav Jurčo (Charles University, Prague), Hyungrok Kim (University of Hertfordshire), Tommaso Macrelli (ETH Zurich), Christian Saemann (Heriot-Watt University), and Martin Wolf, has been published open access (link here) in Fortshcritte der Physik. Field theories with kinematic Lie algebras possess an underlying algebraic structure known as BV*-algebra. The paper explains this perspective, expanding on their previous work and providing additional mathematical details. Moreover, they show how the tensor product of two metric BV*-algebras yields the action of a new syngamy field theory, a construction which comprises the familiar double copy construction. Several examples of the theory are presented. The diagram below, from page 20 of the paper, illustrates a structure that appears in gauge fixing in Section 3.5.