> Then everybody realized Docker was just idiosyncratic configuration layered on top of Linux cgroups That is true and that is why the Docker runtime is still

> Then everybody realized Docker was just idiosyncratic configuration layered on top of Linux cgroups That is true and that is why the Docker runtime is still free. However this is about Docker desktop, which is mostly used on Mac and other platforms, where docker actually manages virtual machines etc. And yeah, all software is just a layer on top of moving bits around ... some of those layers create value, some less.