Halfway done with The Last Emperox. It's the last book in a space opera trilogy. Mankind is spread across the galaxy in an imperial system that forces all settlements to not be fully self sufficient in order to incentive peaceful coexistence. FTL travel doesn't exist and thus trade can only be done with space ships via a complex network of wormholes.

The whole premise is that network is collapsing, which would leave billions of people stranded with a bleak future of them slowly burning through their last supplies. It follows the actions of the emperor's actions taken to save as many lives as possible while trying to fend off assassination attempts from ambitious short-sighted nobles trying to gain the upper hand during the empire's collapse.