Reproducible build means that you get your source code from somewhere, it has dependencies listed, you install those, then you compile your artifact from your s

Reproducible build means that you get your source code from somewhere, it has dependencies listed, you install those, then you compile your artifact from your source, and the resulting binary or container is always the same. You can delete them, start from source in six months and it will still be the same. If you want to do that, you'd need to keep your artifact around, and I guess you'd also need to back up the docker images you depend on.