Your comment relates more, I think, to the general Docker project than subuser specifically. The answer to your question is that it all depends on your definit

Your comment relates more, I think, to the general Docker project than subuser specifically. The answer to your question is that it all depends on your definition of "easier". docker/docker hub hide a lot of complexity in linux namespacing/cgroups/seccomp filtering. You can absolutely achieve the same goal with native linux tools, as long as you have the time and inclination to learn those tools.