Here via the Thinky Awards shortlist, congrats!! I really enjoyed the game - I also sent you a bit of $ in support.
I found one small bug I thought I'd share; here if I drop the purple battery into the four-way and then backtrack and try to push it out upward, it vanishes. (I'm not sure I'm explaining it very clearly, I can share more screenshots.)
Thank you again, it was a delight! I also felt that the different things I learned throughout the game really came together at the last bonus star and I felt a sense of accomplishment when I figured it out :)