This provides three separate tools to supplement a standard Koji deployment.
This tool (and service) will automatically cause your Koji deployment to regenerate its internal repositories for a buildroot tag when it detects that the related external repositories change. Thus, what Kojira does only for Koji's own internal repositories, Gojira does for the external repositories.
This tool (and service) will automatically create package repositories that are ready for use with tools such as yum and dnf. The builds are sourced from Koji and build-tags dictate the target package repository through a flexible mapping.
This tool (and service) will purge old artifacts that Koji has generated which would otherwise accumulate unconstrained and waste storage.