Add third source of power, automatic winding of a mainspring, like found in automatic (self-winding) watches

[NeccoNeko]

For example:

https://en.wikipedia.org/wiki/Automatic_watch

https://phys.org/news/2015-11-self-powered-e-watch-powered-wrist-movements.html

[01010111]

I feel like you also have up to eight more sources if you count the fingers grasping the back of the console! My first thought was triggers similar to one of these:

https://www.firesupplydepot.com/dynamo-3-led-squeeze-flashlight.html