Looks very cool! Love the art-style! Sadly no mac version, would have loved to give it a go.
But where did you get the sky-box from? looks nice! Most sky-boxes I find don't have a proper horizon/ ground part. And I would love to have a nicer one for my current game project https://guldor.itch.io/citybuilder when using the "zoom" function the sky-box just does not look great. In case you made your own sky box, what's the best way to make one?