rubygem-doorkeeper from devel:languages:ruby:extensions project
Selecionar o Seu Sistema Operativo
Adicionar repositório e instalar manualmente
Para openSUSE Tumbleweed corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:ruby:extensions/openSUSE_Tumbleweed/devel:languages:ruby:extensions.repo zypper refresh zypper install rubygem-doorkeeper