[NilsIRL]

Yep pretty much.

The executables bundle crun (a container runtime)[0], and a fuse implementation of squashfs and overlayfs. Appended to that is a squashfs of the image.

At runtime the squashfs and overlayfs are mounted and the container is started.

[0]: https://github.com/containers/crun

[Hixon10]

Apologies for my ignorance, but how does squashfs fit into this picture? It seems I'm missing some pieces of the puzzle.

[Hixon10]

Ok, I've checked code a bit. We use squashfs to pack/unpack OCI Bundle, and for lower layer in OverlayFS.