More wind for the mill

Unless I messed something up, this Witness-like puzzle should be quite tricky. In fact, it is so tricky that the solution checker often times out, though it does work fine for the intended solution.
https://windmill.thefifthmatt.com/1f3v06r
If the meaning of these symbols is unknown to you and you have no desire to play The Witness, feel free to ask in the comments.