I had an idea for a roof area however it didnt make it to the game. Simply interacting with the rungs after the shevling unit is all you need to do to restore power.
In regards to the room with the autodefense computer you already have what you need to bypass it.
The last version I uploaded its too dark left of where the player spawns in the hub and also down by the fountain so exploration is limited to roughly a rectangle prior to finding the torch.
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Thank you. I guess I had not gone left at the beginning to notice it was already cut off. Finally found the item that will bypass the broken computer. Had not realized I could cycle through the inventory with the brackets until I glanced at the control instructions after reading your comment. It might help to list the controls in game, or make a note after picking up the second object that you can cycle through the inventory with the bracket keys. Overall, a good game and I enjoyed it. Thank you :)