In-Store Marketplace to Unify Retail Media Buying

Are you tired of hearing about retail media networks yet, Dear Reader?  I find a wonky fascination in watching players fill each niche as a new industry evolves.  Latest is a In-Store Marketplace, which offers “a consistent, ubiquitous, single-point of integration for any in-store Retail Media platform.”  Ownership is unclear but it seems to be run by a consortium of retail media agencies aiming to provide unified inventory.