对于 15.6，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.6/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-docile
对于 15.5，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.5/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-docile
对于 15.4，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.4/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-docile