Really enjoyed it. The die being programmeable was cool. So too was the way that physics was used to distinguish it from being a grid-based system in disguise. By this, I principally had in mind that six jumps of “size 1” were very different from one jump of “size 6”. I ended up solving the three-tiered puzzle (pictured in ollie_d’s reply) in a wonky way, same too with the T-shaped puzzle. I couldn’t beat level 13. All the same, lots of fun. I would have been proud to have made this.
My one suggestion UI-wise for if you develop this further, is that when you reset the level, have the highlighted face of the Die-agram stay the same as you had before, rather than jumping back to being the one at the “centre” of the net.