Screen-top Initiative Tracker

Looking to replace the boring paper hangers I had been using for my D&D party, I set out looking for screen-top initiative systems that allowed for marking when a character's turn was done. I didn't find anything quite right, so (several iterations later) here we are!

As combat begins, I call for initiative scores (in a Mercerian fashion) then place each flag in the array in the "down" position. That way there's some uncertainty about who goes when during the first round. On each turn, flip