how to update the data in a data registry within another project

i went through the doc for data registry at https://dvc.org/doc/use-cases/data-registry but i am still not clear about how to update registry

if I understand correctly, for a project that imports data from a data registry (which is a git repo), and i changed the data in that project, when i run dvc add changed_data.dvc, what i changed is the data for my project, not the repository of the data regitry. and when i run git commit what i commit to is my project’s git repo, not the registry’s git repo

how could i push back the new data change to the original data registry?

[dberenbaum]

Hi @shelper! Please don’t take the discussion above as dismissal of your points. It’s just trying to understand and gather info.

I think it makes sense that you want to update the data registry from the consumer repo, and I have heard of others asking for something similar. As you said, it forces inexperienced users to understand a lot about how to make changes in Git. It also feels broken to me that you have to manually copy either the data or at least the .dvc file/checksum from the consumer repo to the data registry repo.

I don’t have a good solution for you now, but let’s keep this open for discussion!

[dberenbaum]

There’s also a related proposal in #8066 for how to upload data back to a repo.