This is a super creative twist on the theme of the jam and puzzle platforming, especially with the completed digits etc. We built around segments as well as its so cool how differently you used them compared to us. I found some of the puzzles a little too precise, but I think that this actually works astoundingly well as concept, and could be an awesome full game if you chose to expand upon it more. I'd probably change the targeting logic on the place horizontal piece down to always target a segment that the players hit model doesn't occupy yet, and just ramp the difficulty with other obstacles and challenge pieces.
One of the most creative takes on the jam I've seen, and perhaps the one with most promise if explored further.