rubygem-rack from home:NickLion:ruby_up project
选择您的操作系统
添加软件源并手动安装
对于 devel languages ruby 15.6，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:NickLion:ruby_up/devel_languages_ruby_15.6/home:NickLion:ruby_up.repo zypper refresh zypper install rubygem-rack