You may not be the target audience. Docker is a tool primarily used to help efficiently deploy your networked applications on new servers. If you don't need to

You may not be the target audience. Docker is a tool primarily used to help efficiently deploy your networked applications on new servers. If you don't need to deploy server apps, you can stop reading here. If you do need to deploy apps to servers, docker is worth investigating. It replaces a complex install script and git clones with an efficient clone of a lightweight 'vm' which is ready to run your app immediately.