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Docker is awesome, but what is even more awesome about UNIX philosophy is that you can use combine small tools to create a something that work like docker. Actually Dockerlite used BTRFS and LXC to make a toy version of docker. In this post we are going to discuss show how one can pull a Docker image and run the containers without a docker daemon, of course we do this for fun. We are going the achieve the following: ability to pull docker images space efficient  storage of images and containers even better that docker (not just reuse layers, but even files) run the container We are going to use OSTree : content addressable storage, git-like for OS Images, space efficient and uses hardlinks Skopeo : a way to pull all kinds of images and convert them to all kinds of storage Runc (or any OCI runtime like bubble wraps oci ) In this post we are going to run everything as non-root regular user (to make it even more challenging) let's create a bare OSTr