This is an random idea that i have for replacing the N1 and N2 shaft with a electrical system.
I know i have not the correct background and i see some extra complexity to the engine design but the pros for this is that if the power plan part breaks down the can the fan part of the engine use energy form the other engine.
A other use is removal of the APU bleed air for a full electronic starting system and each compressor blade can be control independent be a software system for the most optimal compression and this count for the turbine stage.
What do you think about my idea for a electric shaft turbojet?