Another soft lock - I can't fill all of the nodes because I have a single node left over (and I couldn't force anything to cross it). Fun idea, and great for a game jam. :)
Love the game! Quick recommendation: the whetstone feels super OP to me. I would consider either limiting to once per turn, or maybe only lasting for a turn, or reducing the effect.
You should definitely put this on Steam Early Access and charge for it. It's fantastic and you deserve to make money on it. And if it starts selling you can add more content and keep amplifying those sales. And if it doesn't sell, well, then you haven't lost anything. :)
