···1314### the engine
1516-At present, the only supported backend is Docker. Spindle executes each step in
17-the pipeline in a fresh container, with state persisted across steps within the
18-`/tangled/workspace` directory.
01920The base image for the container is constructed on the fly using
21[Nixery](https://nixery.dev), which is handy for caching layers for frequently
···1314### the engine
1516+At present, the only supported backend is Docker (and Podman, if Docker
17+compatibility is enabled, so that `/run/docker.sock` is created). Spindle
18+executes each step in the pipeline in a fresh container, with state persisted
19+across steps within the `/tangled/workspace` directory.
2021The base image for the container is constructed on the fly using
22[Nixery](https://nixery.dev), which is handy for caching layers for frequently