A planet completely populated by electronic beings. Single-celled life, multi-cellular, mushrooms, trees, whatever ate lignin, dinosaurs, rodents, humans, Elec

A planet completely populated by electronic beings. Single-celled life, multi-cellular, mushrooms, trees, whatever ate lignin, dinosaurs, rodents, humans, Electric beings? I mean, there's nothing 'unnatural' about a world populated by robots, we just assume that 'alive' means 'made of meat', but the raw materials in a robot and a human are all Earth based.