Concept wise, I love puzzle games and mapping routes is always fun, so I enjoyed the idea!
I do wish the UI was clearer and cleaner because I completely leftfield guessed that you have to press the number to select the tool (spent a good while clicking around the map) and a number of other controls—and like the previous comment, the start button didn’t scale right so it’s completely hidden from view unless someone (lol me) cares to random click around the map for it.