Since Docker, Inc. really doesn’t want to host container images for free anymore, especially for groups, it might be a good idea to publish the images somewhere else aswell. Since the code is already on Github maybe ghcr.io might be a good idea. It shouldn’t be too hard to push the images there as well.
Alternatively https://quay.io has a free offering
Long term that could be an option. However, LibreTranslate has just been approved under Docker’s open source program, so seems we’ll be able to continue to use docker hub for the time being.