Most RPM spec files can be improved. Small improvements like adding licenses with the %license or %doc files in %files section, splitting up packages, adding docs/manpages, adding Ubuntu patches that may help, etc. This should be less of an issue over time.
Before adding RPM spec files in a pull request, they must be related to Unity or mostly any packages in this repository.
Currently there isn't any translations being used in this repository. Instead consider translations for Unity and other packages in this repository.