I think I can throw together a fairly simple script to poll the usage data every few seconds. I am fluent enough with node/react that I could get that data and display it in a live graph that polls asynchronously.
I've never delved into the OS like this before and I dont know how to go about adding that to the native environment. Not sure where to find the files I need to modify-- or add to. Or if I can even do that. Can anyone nudge me in the right direction please?