This is basically how I cram as much productive work into a day that I can, with the goal of strategically dealing with rabbit holes, context switch, constant learning etc.
I've been doing this on paper for ages but I broke my wrist, I couldn't hold a pen but I could type so I figured I'd make it into a thing, polish it up and put it out into the world.
The name comes from Cal Newports book Deep Work, where he's talking about professions where you need to constantly switch between going really deep on a task, but are constantly needing to context switch... which I think applies to a lot of people in tech.
You'll probably want to skim the medium post linked from the website so it makes sense.
Hope someone gets some use out of it :)