rubygem-cool.io from home:deadpoint project
选择您的操作系统
添加软件源并手动安装
对于 openSUSE Factory，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:deadpoint/openSUSE_Factory/home:deadpoint.repo zypper refresh zypper install rubygem-cool.io