Custom registries with packages that are also on CRAN for that same owner should be merged/skipped?
Do not allow packages with a name that matches a cran package if the source URL does not match (i.e. forks) unless the CRAN package is archived I guess
Skip /cran/ repos, unless tied to a given version
Somehow reduce duplicates, focus more on self owned packages
For custom registries:
/cran/repos, unless tied to a given version