> What? This makes no sense. Your images will be the same between dev and prod, even if the host running the containers is different - which is really the whole

> What? This makes no sense. Your images will be the same between dev and prod, even if the host running the containers is different - which is really the whole point - if you build and run an image in dev, it should run identically in prod. I think the author is saying that while this is the point, it's not the reality. As it is right now, things can run absolutely fine in dev and then due to prod running a different operating system, things break.