You can export images to tarballs and import them to your local docker daemon if you want.

Not sure how podman manages local images.

Idea:

1. Setup inotifywait on your sources directory and rsync to keep directories in sync, and on change, build and run latest image
2. Setup inotifywait on your image tarball directory/file and on change import and run latest
3. Mount your source directory to a docker server image that supports hot reloading.