Indeed, some kind of API or, probably best, integration with OpenRepos is needed. We don’t have any metadata exported from chum yet nor ability for users to comment on software.
In principle, we can add metadata to packages, probably add some webhooks to make integration possible on OBS side. How to integrate it with OpenRepos, I don’t really know nor would have time to look into in the foreseeable future. That could be a project for someone to figure out. But it would make sense when we get more software covered in Chum.