Hey, that's actually a very nice project, and to be honest, I can kinda imagine that the saving is minimal if there at all, in terms of time. Partially, I think this is also due to the fact that we are talking about super small amounts of time anyway! Moving files around I think it's totally fast with a mouse, and in general I still do it like that. For me speed is really a secondary thing, it's about ergonomics and limiting my movements. Chances are, I am already writing on the keyboard when I want to do something, so it might not be faster to switch to browser with mod+2 and back to terminal with mod+1, but it's less movement to find the mouse, rotate the shoulder (my split kb is open at shoulder width) etc. Also I think I would argue that requires less focus because it's inherently more mechanic as an action compared to find a button and click, or dragging and dropping something. Either way, it's for sure something interesting to look at!