You drop off resources on the launch pad itself, the big concrete block the rocket sits on. I might add a button to pick up resources. As for your factory idea, I like it, but it might have to wait till after the jam, I don't think I could code that in time.
Found some bugs, like the sun only being able to drop one sun stone at a time and time manipulation only applying after you buy an upgrade after starting over, but the game is overall pretty good.
