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Sounds similar to podman [1] which also doesn't require a daemon (though you can run it with one if you like).

Back to the original article, I prefer dockerfile-based builds as it allows me to run my own tests easily on the image locally before uploading.

Can this be done with buildkits?

There is ongoing work with Buildpacks (specifically `pack`, the project CLI), to integrate better with podman, and enable a daemon-less workflow.

We most often build it with the local docker daemon (though you can with a remote docker daemon), test it, and then publish the image.