I think there's a lot of potential in this game. However, the gameplay is not immediately intuitive.
On the other hand, I eventually fumbled my way to success! Some thoughts that may help improve the experience:
1. Most of the screens seem to flow from left to right in terms of progression. However, the packing screen seems to start from the right then bounce back and forth between interactive components. A consistent flow a la factory line would be helpful
2. Sound effects or other haptic elements to convey when "something has happened" would increase the rate of learning
3. The screen toggles should probably be more present. It took me an embarrassing amount of time to realize that it wasn't a single screen experience
4. Even on full screen the fonts were very small. Not sure if this is just a High DPI issue.
Great work!